/* ============================================================
   INTEGRITY SOLAR SUPPLY LLC — Design System
   Niche: Solar Energy Equipment / Renewable Energy
   Personality: Professional, Technical, Trustworthy, Clean
   ============================================================ */

/* --- Reset --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);background:var(--color-bg);color:var(--color-text-primary);line-height:1.6;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul,ol{list-style:none}
input,select,textarea{font-family:inherit;font-size:inherit}

/* --- Design Tokens --- */
:root{
  --color-bg:#f8f9fb;
  --color-surface:#ffffff;
  --color-surface-alt:#eef1f6;
  --color-border:#d8dde6;
  --color-border-light:#e8ecf2;
  --color-text-primary:#1a2332;
  --color-text-secondary:#4a5568;
  --color-text-muted:#8896a8;
  --color-accent:#1b4d7a;
  --color-accent-hover:#154060;
  --color-accent-fg:#ffffff;
  --color-sun:#f59e0b;
  --color-sun-hover:#d97f06;
  --color-success:#16a34a;
  --color-warning:#eab308;
  --color-error:#dc2626;
  --color-navy:#0f1e2e;
  --color-navy-light:#1a2f44;
  --font-heading:'Space Grotesk',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'JetBrains Mono',monospace;
  --radius-sm:6px;
  --radius-md:10px;
  --radius-lg:16px;
  --radius-full:9999px;
  --shadow-sm:0 1px 3px rgba(15,30,46,.08);
  --shadow-md:0 4px 12px rgba(15,30,46,.1);
  --shadow-lg:0 12px 32px rgba(15,30,46,.14);
  --space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;
  --space-xl:40px;--space-2xl:64px;--space-3xl:96px;
  --transition-fast:150ms ease;
  --transition-base:250ms ease;
  --container-max:1280px;
  --header-height:74px;
}

/* --- Container --- */
.container{max-width:var(--container-max);margin:0 auto;padding:0 var(--space-lg)}
@media(min-width:768px){.container{padding:0 var(--space-xl)}}

/* --- Typography --- */
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.2;color:var(--color-text-primary)}
h1{font-size:clamp(1.75rem,5vw,3rem)}
h2{font-size:clamp(1.5rem,4vw,2.25rem)}
h3{font-size:clamp(1.25rem,3vw,1.625rem)}
h4{font-size:1.125rem}
p{color:var(--color-text-secondary)}

/* --- Buttons --- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:12px 24px;border-radius:var(--radius-sm);font-family:var(--font-heading);font-weight:600;font-size:.9375rem;letter-spacing:.02em;transition:all var(--transition-fast);white-space:nowrap;border:2px solid transparent;cursor:pointer}
.btn-primary{background:var(--color-accent);color:var(--color-accent-fg)}
.btn-primary:hover{background:var(--color-accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-sun{background:var(--color-sun);color:#1a1a1a}
.btn-sun:hover{background:var(--color-sun-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-secondary{background:var(--color-surface);color:var(--color-text-primary);border-color:var(--color-border)}
.btn-secondary:hover{border-color:var(--color-accent);color:var(--color-accent)}
.btn-ghost{background:transparent;color:var(--color-text-primary);padding:8px 16px}
.btn-ghost:hover{color:var(--color-accent)}
.btn-lg{padding:16px 36px;font-size:1rem}
.btn-sm{padding:8px 16px;font-size:.8125rem}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn-full{width:100%}

/* --- Badges --- */
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;font-family:var(--font-heading);letter-spacing:.03em}
.badge-sale{background:#fef3c7;color:#92400e}
.badge-new{background:#dbeafe;color:#1e40af}
.badge-out{background:#fee2e2;color:#991b1b}
.badge-count{background:var(--color-sun);color:#1a1a1a;min-width:20px;height:20px;border-radius:var(--radius-full);display:inline-flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;padding:0 6px}

/* --- Announcement / Top Utility Bar --- */
.announcement-bar{background:linear-gradient(90deg,#08121c 0%,#102236 50%,#08121c 100%);color:#cbd5e1;font-size:.8125rem;font-weight:500;border-bottom:1px solid rgba(255,255,255,.08);position:relative;z-index:101}
.announcement-inner{display:flex;align-items:center;justify-content:space-between;min-height:38px;padding:6px 0;gap:var(--space-md)}
.announcement-item{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.announcement-link{color:#f8fafc;font-weight:600;transition:color var(--transition-fast)}
.announcement-link:hover{color:var(--color-sun)}
.announcement-badge{background:var(--color-sun);color:#0f1e2e;font-size:.6875rem;font-weight:800;letter-spacing:.06em;padding:2px 7px;border-radius:var(--radius-full);display:inline-flex;align-items:center}
.announcement-center{margin:0 auto;text-align:center}
.announcement-center strong{color:#fff;font-weight:600}
.announcement-left svg,.announcement-right svg{color:var(--color-sun);flex-shrink:0}
@media(max-width:992px){
  .announcement-left,.announcement-right{display:none}
  .announcement-inner{justify-content:center}
}

/* --- Navigation --- */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(216,221,230,.7);height:var(--header-height);display:flex;align-items:center;transition:height var(--transition-base),background var(--transition-base),box-shadow var(--transition-base),border-color var(--transition-base)}
.nav.scrolled{height:64px;background:rgba(255,255,255,.98);box-shadow:0 10px 30px -10px rgba(15,30,46,.12);border-bottom-color:rgba(216,221,230,.9)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;width:100%;gap:var(--space-md)}

/* --- Brand Logo --- */
.nav-logo{display:inline-flex;align-items:center;gap:12px;text-decoration:none;transition:transform var(--transition-fast)}
.nav-logo:hover{transform:translateY(-1px)}
.logo-mark{width:38px;height:38px;display:flex;align-items:center;justify-content:center;border-radius:10px;background:linear-gradient(135deg,#0f1e2e 0%,#1b3a5c 100%);box-shadow:0 4px 14px rgba(15,30,46,.2);flex-shrink:0;transition:all var(--transition-fast)}
.nav-logo:hover .logo-mark{box-shadow:0 6px 18px rgba(245,158,11,.35);border-color:var(--color-sun)}
.logo-text{display:flex;flex-direction:column;line-height:1}
.logo-name{font-family:var(--font-heading);font-weight:800;font-size:1.25rem;color:var(--color-navy);letter-spacing:-.02em}
.logo-name span{color:var(--color-sun)}
.logo-sub{font-family:var(--font-heading);font-size:.5625rem;font-weight:700;color:var(--color-text-muted);letter-spacing:.12em;text-transform:uppercase;margin-top:3px}

/* --- Nav Links & Dropdowns --- */
.nav-links{display:none;align-items:center;gap:4px}
.nav-link,.nav-links a{font-family:var(--font-heading);font-weight:600;font-size:.875rem;color:var(--color-text-secondary);padding:8px 12px;border-radius:var(--radius-sm);transition:all var(--transition-fast);display:inline-flex;align-items:center;gap:5px;position:relative;text-decoration:none}
.nav-link:hover,.nav-links a:hover{color:var(--color-accent);background:rgba(27,77,122,.06)}
.nav-link.active,.nav-links a.active{color:var(--color-accent);background:rgba(27,77,122,.08)}

/* Dropdown Menu */
.dropdown-wrap{position:relative;display:inline-block}
.dropdown-wrap::after{content:'';position:absolute;left:0;right:0;bottom:-14px;height:14px}
.dropdown-trigger{cursor:pointer}
.dropdown-chevron{transition:transform var(--transition-fast);color:var(--color-text-muted)}
.dropdown-wrap:hover .dropdown-chevron,.dropdown-wrap:focus-within .dropdown-chevron{transform:rotate(180deg);color:var(--color-accent)}
.dropdown-menu{position:absolute;top:calc(100% + 8px);left:-40px;width:520px;background:#ffffff;border:1px solid rgba(216,221,230,.9);border-radius:14px;box-shadow:0 22px 48px -12px rgba(15,30,46,.2);padding:18px;z-index:250;opacity:0;visibility:hidden;transform:translateY(8px);transition:all .22s cubic-bezier(.16,1,.3,1)}
.dropdown-wrap:hover .dropdown-menu,.dropdown-wrap:focus-within .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;padding:0 4px}
.dropdown-label{font-family:var(--font-heading);font-size:.6875rem;font-weight:700;color:var(--color-text-muted);letter-spacing:.08em;text-transform:uppercase}
.dropdown-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.dropdown-card{display:flex;align-items:flex-start;gap:12px;padding:12px;border-radius:10px;background:var(--color-surface-alt);border:1px solid transparent;transition:all var(--transition-fast);text-decoration:none}
.dropdown-card:hover{background:#ffffff;border-color:var(--color-border);box-shadow:var(--shadow-sm);transform:translateY(-1px)}
.dropdown-card-icon{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.icon-inverter{background:#e0f2fe;color:#0284c7}
.icon-kit{background:#fef3c7;color:#d97706}
.icon-acc{background:#ede9fe;color:#7c3aed}
.icon-battery{background:#dcfce7;color:#16a34a}
.dropdown-card-text strong{display:block;font-size:.84375rem;font-weight:700;color:var(--color-text-primary);margin-bottom:2px}
.dropdown-card-text span{display:block;font-size:.71875rem;color:var(--color-text-muted);line-height:1.3}
.dropdown-footer{margin-top:12px;padding-top:12px;border-top:1px solid var(--color-border-light);text-align:right}
.dropdown-footer a{font-family:var(--font-heading);font-size:.8125rem;font-weight:600;color:var(--color-accent);display:inline-flex;align-items:center;gap:4px;transition:gap var(--transition-fast);text-decoration:none}
.dropdown-footer a:hover{gap:8px;color:var(--color-accent-hover)}

@media(min-width:1024px){.nav-links{display:flex}}

/* --- Nav Actions (Search, Phone CTA, Cart, Hamburger) --- */
.nav-actions{display:flex;align-items:center;gap:10px}

/* Search Bar */
.search-wrap{position:relative;display:none}
@media(min-width:768px){.search-wrap{display:block}}
.search-input{width:210px;height:42px;padding:8px 36px 8px 38px;border:1.5px solid var(--color-border);border-radius:var(--radius-full);font-size:.84375rem;background:#f1f4f8;transition:all var(--transition-fast)}
.search-input:focus{outline:none;border-color:var(--color-accent);background:#ffffff;width:280px;box-shadow:0 0 0 3px rgba(27,77,122,.12)}
.search-icon{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--color-text-muted);pointer-events:none}
.search-kbd{position:absolute;right:12px;top:50%;transform:translateY(-50%);font-family:var(--font-mono);font-size:.6875rem;font-weight:700;color:var(--color-text-muted);background:#ffffff;border:1px solid var(--color-border);border-radius:4px;padding:1px 5px;pointer-events:none;line-height:1.2}
.search-results{position:absolute;top:calc(100% + 8px);left:0;right:0;min-width:320px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;box-shadow:var(--shadow-lg);max-height:420px;overflow-y:auto;display:none;z-index:200}
.search-results.show{display:block}
.search-item{display:flex;gap:var(--space-md);padding:10px 14px;border-bottom:1px solid var(--color-border-light);transition:background var(--transition-fast);align-items:center;text-decoration:none}
.search-item:hover{background:var(--color-surface-alt)}
.search-item img{width:46px;height:46px;border-radius:var(--radius-sm);object-fit:cover;background:#fff;border:1px solid var(--color-border-light)}
.search-item-info h4{font-size:.84375rem;font-weight:600;margin-bottom:2px;color:var(--color-text-primary);line-height:1.3}
.search-item-info p{font-size:.8125rem;color:var(--color-accent);font-weight:700;font-family:var(--font-mono)}

/* Phone CTA Button */
.nav-cta-btn{display:none;align-items:center;gap:7px;padding:8px 14px;border-radius:var(--radius-full);font-family:var(--font-heading);font-size:.8125rem;font-weight:600;background:rgba(27,77,122,.07);color:var(--color-accent);border:1px solid rgba(27,77,122,.15);text-decoration:none;transition:all var(--transition-fast);white-space:nowrap}
.nav-cta-btn:hover{background:var(--color-accent);color:#fff;border-color:var(--color-accent);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
@media(min-width:1160px){.nav-cta-btn{display:inline-flex}}

/* Cart Button */
.cart-trigger{width:42px;height:42px;display:flex;align-items:center;justify-content:center;border-radius:10px;border:1.5px solid var(--color-border-light);background:#ffffff;color:var(--color-text-primary);transition:all var(--transition-fast);position:relative;cursor:pointer;text-decoration:none}
.cart-trigger:hover{border-color:var(--color-accent);color:var(--color-accent);background:rgba(27,77,122,.04);transform:translateY(-1px)}
.nav-cart-count{position:absolute;top:-6px;right:-6px;background:var(--color-sun);color:#0f1e2e;font-size:.6875rem;font-weight:800;min-width:20px;height:20px;border-radius:var(--radius-full);display:inline-flex;align-items:center;justify-content:center;padding:0 5px;border:2px solid #ffffff;box-shadow:0 2px 6px rgba(0,0,0,.15)}

/* Hamburger */
.hamburger{display:flex;flex-direction:column;gap:5px;width:42px;height:42px;align-items:center;justify-content:center;border-radius:10px;border:1.5px solid var(--color-border-light);background:#fff;transition:all var(--transition-fast)}
.hamburger:hover{border-color:var(--color-accent);background:rgba(27,77,122,.04)}
.hamburger span{display:block;width:20px;height:2px;background:var(--color-text-primary);border-radius:2px;transition:all var(--transition-fast)}
.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
@media(min-width:1024px){.hamburger{display:none}}

/* --- Mobile Menu Drawer --- */
.mobile-menu{position:fixed;top:var(--header-height);left:0;right:0;bottom:0;background:rgba(255,255,255,.98);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);z-index:99;transform:translateX(-100%);transition:transform var(--transition-base);overflow-y:auto;padding:var(--space-lg);display:flex;flex-direction:column;gap:var(--space-md)}
.mobile-menu.open{transform:translateX(0)}
.mobile-menu-section{display:flex;flex-direction:column;gap:4px;padding-bottom:var(--space-md);border-bottom:1px solid var(--color-border-light)}
.mobile-menu-label{font-family:var(--font-heading);font-size:.6875rem;font-weight:700;color:var(--color-text-muted);letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px;padding:0 4px}
.mobile-nav-link{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;font-family:var(--font-heading);font-weight:600;font-size:1rem;color:var(--color-text-primary);border-radius:8px;text-decoration:none;transition:all var(--transition-fast)}
.mobile-nav-link:hover{background:var(--color-surface-alt);color:var(--color-accent)}
.mobile-badge{font-size:.6875rem;font-weight:700;background:var(--color-surface-alt);color:var(--color-text-secondary);padding:2px 8px;border-radius:var(--radius-full)}
.mobile-menu-footer{margin-top:auto;padding-top:var(--space-md);display:flex;flex-direction:column;gap:10px}
.mobile-call-btn{background:var(--color-accent);color:#fff;border-radius:10px;padding:12px;font-weight:600;display:flex;align-items:center;justify-content:center;gap:8px}
.mobile-trust-note{text-align:center;font-size:.8125rem;color:var(--color-text-muted);font-weight:500}

/* --- Hero --- */
.hero{position:relative;min-height:520px;display:flex;align-items:center;background:linear-gradient(135deg,var(--color-navy) 0%,var(--color-navy-light) 100%);overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.35}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,30,46,.85) 0%,rgba(15,30,46,.5) 50%,rgba(15,30,46,.2) 100%)}
.hero-content{position:relative;z-index:2;max-width:640px;padding:var(--space-3xl) 0}
.hero-eyebrow{display:inline-block;padding:6px 14px;background:rgba(245,158,11,.15);border:1px solid rgba(245,158,11,.3);border-radius:var(--radius-full);color:var(--color-sun);font-family:var(--font-heading);font-weight:600;font-size:.8125rem;letter-spacing:.05em;text-transform:uppercase;margin-bottom:var(--space-lg)}
.hero-title{color:#fff;font-size:clamp(2rem,6vw,3.5rem);line-height:1.1;margin-bottom:var(--space-lg)}
.hero-subtitle{color:rgba(255,255,255,.85);font-size:clamp(1rem,2.5vw,1.25rem);margin-bottom:var(--space-xl);max-width:540px}
.hero-actions{display:flex;gap:var(--space-md);flex-wrap:wrap}

/* --- Sections --- */
.section{padding:var(--space-2xl) 0}
.section-alt{background:var(--color-surface-alt);padding:var(--space-2xl) 0}
.section-header{text-align:center;margin-bottom:var(--space-xl)}
.section-title{margin-bottom:var(--space-sm)}
.section-subtitle{color:var(--color-text-muted);font-size:1.0625rem;max-width:600px;margin:0 auto}

/* --- Grids --- */
.grid-2{display:grid;grid-template-columns:1fr;gap:var(--space-lg)}
.grid-3{display:grid;grid-template-columns:1fr;gap:var(--space-lg)}
.grid-4{display:grid;grid-template-columns:1fr;gap:var(--space-lg)}
.grid-auto{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:var(--space-lg)}
@media(min-width:640px){.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}}

/* --- Product Card --- */
.product-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-md);overflow:hidden;transition:all var(--transition-base);display:flex;flex-direction:column}
.product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);border-color:var(--color-border)}
.product-card-img{position:relative;aspect-ratio:1;overflow:hidden;background:var(--color-surface-alt)}
.product-card-img img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-base)}
.product-card:hover .product-card-img img{transform:scale(1.05)}
.product-card-badges{position:absolute;top:var(--space-sm);left:var(--space-sm);display:flex;flex-direction:column;gap:4px;z-index:2}
.product-card-body{padding:var(--space-md);display:flex;flex-direction:column;gap:var(--space-xs);flex-grow:1}
.product-card-vendor{font-size:.75rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.product-card-title{font-family:var(--font-heading);font-weight:600;font-size:.9375rem;line-height:1.3;color:var(--color-text-primary);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.6em}
.product-card-title a:hover{color:var(--color-accent)}
.product-card-price-wrap{display:flex;align-items:baseline;gap:var(--space-sm);margin-top:auto}
.product-card-price{font-family:var(--font-mono);font-weight:700;font-size:1.125rem;color:var(--color-text-primary)}
.product-card-compare{font-family:var(--font-mono);font-size:.875rem;color:var(--color-text-muted);text-decoration:line-through}
.product-card-atc{margin-top:var(--space-sm);width:100%;padding:10px;font-size:.8125rem}

/* --- Collection Card --- */
.collection-card{position:relative;aspect-ratio:4/3;border-radius:var(--radius-lg);overflow:hidden;display:block}
.collection-card img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-base)}
.collection-card:hover img{transform:scale(1.05)}
.collection-card-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(15,30,46,.85) 0%,rgba(15,30,46,.2) 60%,transparent 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:var(--space-lg)}
.collection-card-overlay h3{color:#fff;margin-bottom:4px}
.collection-card-overlay p{color:rgba(255,255,255,.8);font-size:.875rem}
.collection-card-overlay .btn{margin-top:var(--space-sm);align-self:flex-start}

/* --- Blog Card --- */
.blog-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-md);overflow:hidden;transition:all var(--transition-base);display:flex;flex-direction:column}
.blog-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.blog-card-img{aspect-ratio:16/9;overflow:hidden}
.blog-card-img img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-base)}
.blog-card:hover .blog-card-img img{transform:scale(1.05)}
.blog-card-body{padding:var(--space-lg);display:flex;flex-direction:column;gap:var(--space-sm);flex-grow:1}
.blog-card-meta{font-size:.75rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.blog-card-title{font-size:1.125rem;line-height:1.3}
.blog-card-title a:hover{color:var(--color-accent)}
.blog-card-excerpt{font-size:.875rem;color:var(--color-text-secondary);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.blog-card-read{margin-top:auto;color:var(--color-accent);font-family:var(--font-heading);font-weight:600;font-size:.8125rem}

/* --- Trust Badges --- */
.trust-badges{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-lg);text-align:center}
@media(min-width:768px){.trust-badges{grid-template-columns:repeat(4,1fr)}}
.trust-item{display:flex;flex-direction:column;align-items:center;gap:var(--space-sm);padding:var(--space-lg)}
.trust-item-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--color-surface-alt);border-radius:var(--radius-full);color:var(--color-accent)}
.trust-item h4{font-size:.9375rem}
.trust-item p{font-size:.8125rem;color:var(--color-text-muted)}

/* --- Breadcrumb --- */
.breadcrumb{display:flex;flex-wrap:wrap;gap:var(--space-xs);align-items:center;padding:var(--space-md) 0;font-size:.8125rem;color:var(--color-text-muted)}
.breadcrumb a:hover{color:var(--color-accent)}
.breadcrumb-sep{color:var(--color-border)}

/* --- Product Layout --- */
.product-layout{display:grid;grid-template-columns:1fr;gap:var(--space-xl);padding:var(--space-xl) 0}
@media(min-width:768px){.product-layout{grid-template-columns:1fr 1fr;gap:var(--space-2xl)}}
.product-gallery{display:flex;flex-direction:column;gap:var(--space-md)}
.gallery-main-wrap{border-radius:var(--radius-lg);overflow:hidden;background:var(--color-surface-alt);aspect-ratio:1;border:1px solid var(--color-border-light)}
.gallery-main-wrap img{width:100%;height:100%;object-fit:cover}
.gallery-thumbs{display:flex;gap:var(--space-sm);flex-wrap:wrap}
.gallery-thumb{width:72px;height:72px;border-radius:var(--radius-sm);overflow:hidden;border:2px solid var(--color-border);cursor:pointer;transition:border-color var(--transition-fast)}
.gallery-thumb.active{border-color:var(--color-accent)}
.gallery-thumb img{width:100%;height:100%;object-fit:cover}
.product-info{display:flex;flex-direction:column;gap:var(--space-md)}
.product-vendor{font-size:.8125rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.product-title{font-size:clamp(1.5rem,3vw,2rem);line-height:1.2}
.product-price-wrap{display:flex;align-items:baseline;gap:var(--space-md)}
.product-price{font-family:var(--font-mono);font-weight:700;font-size:1.75rem;color:var(--color-text-primary)}
.product-compare-price{font-family:var(--font-mono);font-size:1.25rem;color:var(--color-text-muted);text-decoration:line-through}
.rating-stars{display:flex;align-items:center;gap:4px;color:var(--color-sun);font-size:1rem}
.rating-stars .star-empty{color:var(--color-border)}
.rating-text{font-size:.8125rem;color:var(--color-text-muted);margin-left:var(--space-xs)}

/* --- Option Selectors --- */
.option-group{display:flex;flex-direction:column;gap:var(--space-sm)}
.option-label{font-family:var(--font-heading);font-weight:600;font-size:.875rem;color:var(--color-text-primary)}
.option-label span{color:var(--color-text-muted);font-weight:400}
.option-btns{display:flex;flex-wrap:wrap;gap:var(--space-sm)}
.option-btn{padding:8px 16px;border:2px solid var(--color-border);border-radius:var(--radius-sm);font-size:.875rem;font-weight:500;transition:all var(--transition-fast);background:var(--color-surface);color:var(--color-text-primary)}
.option-btn:hover{border-color:var(--color-accent)}
.option-btn.active{border-color:var(--color-accent);background:var(--color-accent);color:var(--color-accent-fg)}
.option-btn.unavailable{opacity:.4;text-decoration:line-through;cursor:not-allowed}

/* --- Quantity Control --- */
.qty-control{display:inline-flex;align-items:center;border:2px solid var(--color-border);border-radius:var(--radius-sm);overflow:hidden}
.qty-btn{width:40px;height:40px;display:flex;align-items:center;justify-content:center;font-size:1.25rem;color:var(--color-text-secondary);transition:background var(--transition-fast)}
.qty-btn:hover{background:var(--color-surface-alt);color:var(--color-accent)}
.qty-input{width:50px;height:40px;text-align:center;border:none;border-left:2px solid var(--color-border);border-right:2px solid var(--color-border);font-family:var(--font-mono);font-weight:600;font-size:1rem}

/* --- Sticky ATC --- */
.sticky-atc{position:fixed;bottom:0;left:0;right:0;background:var(--color-surface);border-top:1px solid var(--color-border);box-shadow:0 -4px 12px rgba(15,30,46,.08);padding:var(--space-md) var(--space-lg);display:flex;align-items:center;gap:var(--space-md);z-index:90;transform:translateY(100%);transition:transform var(--transition-base)}
.sticky-atc.visible{transform:translateY(0)}
.sticky-atc-product{display:flex;align-items:center;gap:var(--space-sm);flex-grow:1;min-width:0}
.sticky-atc-product img{width:48px;height:48px;border-radius:var(--radius-sm);object-fit:cover}
.sticky-atc-product .sticky-title{font-size:.875rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sticky-atc-product .sticky-price{font-family:var(--font-mono);font-weight:700;font-size:.875rem}

/* --- Product Accordions --- */
.product-accordions{display:flex;flex-direction:column;gap:var(--space-sm);margin-top:var(--space-lg)}
.accordion{border:1px solid var(--color-border-light);border-radius:var(--radius-sm);overflow:hidden}
.accordion-header{padding:var(--space-md);background:var(--color-surface-alt);font-family:var(--font-heading);font-weight:600;font-size:.9375rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background var(--transition-fast)}
.accordion-header:hover{background:var(--color-border-light)}
.accordion-icon{transition:transform var(--transition-fast)}
.accordion.open .accordion-icon{transform:rotate(45deg)}
.accordion-body{padding:0 var(--space-md);max-height:0;overflow:hidden;transition:all var(--transition-base)}
.accordion.open .accordion-body{padding:var(--space-md);max-height:600px}
.accordion-body p{font-size:.875rem;line-height:1.7}
.accordion-body ul{padding-left:var(--space-lg);margin-top:var(--space-sm)}
.accordion-body li{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:4px;list-style:disc}

/* --- Reviews --- */
.reviews-section{padding:var(--space-2xl) 0;border-top:1px solid var(--color-border-light)}
.reviews-summary{display:flex;flex-direction:column;gap:var(--space-md);margin-bottom:var(--space-xl)}
@media(min-width:768px){.reviews-summary{flex-direction:row;align-items:center;gap:var(--space-2xl)}}
.reviews-avg{text-align:center}
.reviews-score{font-family:var(--font-heading);font-size:3rem;font-weight:700;color:var(--color-text-primary)}
.reviews-bars{flex-grow:1;display:flex;flex-direction:column;gap:6px;max-width:400px}
.rating-bar{display:flex;align-items:center;gap:var(--space-sm);font-size:.8125rem}
.rating-bar-label{width:60px;color:var(--color-text-muted)}
.rating-bar-track{flex-grow:1;height:8px;background:var(--color-surface-alt);border-radius:var(--radius-full);overflow:hidden}
.rating-bar-fill{height:100%;background:var(--color-sun);border-radius:var(--radius-full)}
.rating-bar-count{width:30px;text-align:right;color:var(--color-text-muted)}
.review-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-md);padding:var(--space-lg)}
.review-header{display:flex;justify-content:space-between;align-items:start;margin-bottom:var(--space-sm)}
.review-author{font-family:var(--font-heading);font-weight:600;font-size:.9375rem}
.review-verified{font-size:.75rem;color:var(--color-success);display:flex;align-items:center;gap:4px}
.review-title{font-family:var(--font-heading);font-weight:600;font-size:.9375rem;margin-bottom:var(--space-xs)}
.review-body{font-size:.875rem;color:var(--color-text-secondary);line-height:1.7}
.review-date{font-size:.75rem;color:var(--color-text-muted);margin-top:var(--space-sm)}

/* --- Cart Drawer --- */
.cart-overlay{position:fixed;inset:0;background:rgba(15,30,46,.5);z-index:200;opacity:0;visibility:hidden;transition:all var(--transition-base)}
.cart-overlay.show{opacity:1;visibility:visible}
.cart-drawer{position:fixed;top:0;right:0;bottom:0;width:100%;max-width:420px;background:var(--color-surface);z-index:201;transform:translateX(100%);transition:transform var(--transition-base);display:flex;flex-direction:column}
.cart-drawer.open{transform:translateX(0)}
.cart-drawer-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-lg);border-bottom:1px solid var(--color-border-light)}
.cart-drawer-header h2{font-size:1.25rem;display:flex;align-items:center;gap:var(--space-sm)}
.cart-lines{flex-grow:1;overflow-y:auto;padding:var(--space-md)}
.cart-item{display:flex;gap:var(--space-md);padding:var(--space-md) 0;border-bottom:1px solid var(--color-border-light)}
.cart-item img{width:72px;height:72px;border-radius:var(--radius-sm);object-fit:cover;flex-shrink:0}
.cart-item-info{flex-grow:1;display:flex;flex-direction:column;gap:4px}
.cart-item-title{font-family:var(--font-heading);font-weight:600;font-size:.875rem;line-height:1.3}
.cart-item-variant{font-size:.75rem;color:var(--color-text-muted)}
.cart-item-price{font-family:var(--font-mono);font-weight:700;font-size:.875rem}
.cart-item-controls{display:flex;align-items:center;justify-content:space-between;margin-top:var(--space-sm)}
.cart-item-remove{font-size:.75rem;color:var(--color-error);text-decoration:underline}
.cart-footer{padding:var(--space-lg);border-top:1px solid var(--color-border-light)}
.cart-subtotal{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:var(--space-sm)}
.cart-subtotal strong{font-family:var(--font-mono);font-size:1.25rem}
.cart-tax-note{font-size:.75rem;color:var(--color-text-muted);margin-bottom:var(--space-md)}
.cart-empty{text-align:center;padding:var(--space-2xl) var(--space-lg)}
.cart-empty p{margin-bottom:var(--space-lg)}

/* --- Toast --- */
.toast{position:fixed;bottom:var(--space-xl);left:50%;transform:translateX(-50%) translateY(100px);background:var(--color-text-primary);color:#fff;padding:var(--space-md) var(--space-lg);border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);z-index:300;font-size:.875rem;font-weight:500;opacity:0;transition:all var(--transition-base);max-width:90vw}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}
.toast-success{background:var(--color-success)}
.toast-error{background:var(--color-error)}

/* --- Footer --- */
.footer{background:var(--color-navy);color:rgba(255,255,255,.7);padding:var(--space-2xl) 0 var(--space-lg)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:var(--space-xl);margin-bottom:var(--space-xl)}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:var(--space-md)}
.footer-col a{display:block;padding:4px 0;font-size:.875rem;color:rgba(255,255,255,.6);transition:color var(--transition-fast)}
.footer-col a:hover{color:var(--color-sun)}
.footer-logo{font-family:var(--font-heading);font-weight:700;font-size:1.25rem;color:#fff;margin-bottom:var(--space-sm)}
.footer-logo span{color:var(--color-sun)}
.footer-desc{font-size:.875rem;line-height:1.7;margin-bottom:var(--space-md);max-width:300px}
.social-links{display:flex;gap:var(--space-sm)}
.social-links a{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.1);border-radius:var(--radius-sm);transition:background var(--transition-fast)}
.social-links a:hover{background:var(--color-sun);color:var(--color-navy)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:var(--space-lg);display:flex;flex-wrap:wrap;justify-content:space-between;gap:var(--space-md);font-size:.8125rem;color:rgba(255,255,255,.5)}

/* --- Pagination --- */
.pagination{display:flex;justify-content:center;gap:var(--space-xs);margin-top:var(--space-xl)}
.pagination-btn{min-width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:.875rem;font-weight:500;transition:all var(--transition-fast);padding:0 12px}
.pagination-btn:hover{border-color:var(--color-accent);color:var(--color-accent)}
.pagination-btn.active{background:var(--color-accent);color:var(--color-accent-fg);border-color:var(--color-accent)}
.pagination-btn:disabled{opacity:.4;cursor:not-allowed}

/* --- Sort Bar --- */
.sort-bar{display:flex;justify-content:space-between;align-items:center;gap:var(--space-md);padding:var(--space-md) 0;flex-wrap:wrap}
.sort-bar select{padding:8px 12px;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:.875rem;background:var(--color-surface);cursor:pointer}
.sort-bar select:focus{outline:none;border-color:var(--color-accent)}
.product-count{font-size:.8125rem;color:var(--color-text-muted)}

/* --- Availability --- */
.availability-msg{font-size:.8125rem;font-weight:600;padding:6px 12px;border-radius:var(--radius-sm);display:inline-flex;align-items:center;gap:6px}
.availability-msg.in-stock{background:#dcfce7;color:#15803d}
.availability-msg.out-stock{background:#fee2e2;color:#991b1b}
.availability-msg.low-stock{background:#fef3c7;color:#854d0e}

/* --- Skeleton --- */
.skeleton{background:linear-gradient(90deg,var(--color-surface-alt) 25%,var(--color-border-light) 50%,var(--color-surface-alt) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* --- Animations --- */
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
@keyframes spin{to{transform:rotate(360deg)}}
.fade-in{animation:fadeIn .5s ease}
.slide-up{animation:slideUp .5s ease}

/* --- Accessibility --- */
:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* --- Utility --- */
.text-center{text-align:center}
.mt-md{margin-top:var(--space-md)}
.mt-lg{margin-top:var(--space-lg)}
.mt-xl{margin-top:var(--space-xl)}
.mb-md{margin-bottom:var(--space-md)}
.mb-lg{margin-bottom:var(--space-lg)}
.mb-xl{margin-bottom:var(--space-xl)}
.hidden{display:none}

/* --- FAQ --- */
.faq-item{border:1px solid var(--color-border-light);border-radius:var(--radius-sm);margin-bottom:var(--space-sm);overflow:hidden}
.faq-question{padding:var(--space-md);font-family:var(--font-heading);font-weight:600;font-size:.9375rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;background:var(--color-surface)}
.faq-question:hover{background:var(--color-surface-alt)}
.faq-answer{padding:0 var(--space-md);max-height:0;overflow:hidden;transition:all var(--transition-base)}
.faq-item.open .faq-answer{padding:var(--space-md);max-height:300px}
.faq-answer p{font-size:.875rem;line-height:1.7}

/* --- Newsletter --- */
.newsletter{background:var(--color-navy);color:#fff;padding:var(--space-2xl) 0;text-align:center}
.newsletter h2{color:#fff;margin-bottom:var(--space-sm)}
.newsletter p{color:rgba(255,255,255,.7);margin-bottom:var(--space-lg)}
.newsletter-form{display:flex;gap:var(--space-sm);max-width:480px;margin:0 auto;flex-wrap:wrap}
.newsletter-form input{flex-grow:1;min-width:200px;padding:12px 16px;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-sm);background:rgba(255,255,255,.05);color:#fff;font-size:.9375rem}
.newsletter-form input::placeholder{color:rgba(255,255,255,.4)}
.newsletter-form input:focus{outline:none;border-color:var(--color-sun)}

/* --- Page Content --- */
.page-content{max-width:800px;margin:0 auto;padding:var(--space-xl) 0}
.page-content h1{margin-bottom:var(--space-lg)}
.page-content h2{margin:var(--space-xl) 0 var(--space-md)}
.page-content h3{margin:var(--space-lg) 0 var(--space-sm)}
.page-content p{margin-bottom:var(--space-md);line-height:1.8}
.page-content ul{padding-left:var(--space-lg);margin-bottom:var(--space-md)}
.page-content li{margin-bottom:var(--space-xs);color:var(--color-text-secondary);list-style:disc}
.page-content img{border-radius:var(--radius-md);margin:var(--space-lg) 0}

/* --- Contact Form --- */
.contact-form{display:grid;gap:var(--space-md);max-width:600px;margin:0 auto}
.form-group{display:flex;flex-direction:column;gap:var(--space-xs)}
.form-group label{font-family:var(--font-heading);font-weight:600;font-size:.875rem}
.form-group input,.form-group textarea,.form-group select{padding:12px 16px;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:.9375rem;transition:border-color var(--transition-fast)}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--color-accent)}
.form-row{display:grid;grid-template-columns:1fr;gap:var(--space-md)}
@media(min-width:640px){.form-row{grid-template-columns:1fr 1fr}}

/* --- Policy Layout --- */
.policy-layout{display:grid;grid-template-columns:1fr;gap:var(--space-xl);padding:var(--space-xl) 0}
@media(min-width:768px){.policy-layout{grid-template-columns:240px 1fr}}
.policy-sidebar{display:flex;flex-direction:column;gap:var(--space-xs)}
.policy-sidebar a{padding:10px 14px;border-radius:var(--radius-sm);font-size:.875rem;font-weight:500;color:var(--color-text-secondary);transition:all var(--transition-fast)}
.policy-sidebar a:hover,.policy-sidebar a.active{background:var(--color-surface-alt);color:var(--color-accent)}
.policy-content{max-width:800px}
.policy-content h1{margin-bottom:var(--space-lg)}
.policy-content h2{margin:var(--space-xl) 0 var(--space-md)}
.policy-content p{margin-bottom:var(--space-md);line-height:1.8}
.policy-content ul{padding-left:var(--space-lg);margin-bottom:var(--space-md)}
.policy-content li{margin-bottom:var(--space-xs);list-style:disc;color:var(--color-text-secondary)}

/* --- 404 --- */
.error-page{text-align:center;padding:var(--space-3xl) 0}
.error-page h1{font-size:clamp(4rem,15vw,8rem);color:var(--color-accent);line-height:1}
.error-page p{font-size:1.125rem;margin-bottom:var(--space-lg)}

/* --- Spinner --- */
.spinner{width:20px;height:20px;border:2px solid var(--color-border);border-top-color:var(--color-accent);border-radius:50%;animation:spin .8s linear infinite}

/* --- Article --- */
.article-hero{position:relative;min-height:400px;display:flex;align-items:flex-end;background:var(--color-navy);overflow:hidden}
.article-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4}
.article-hero-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(15,30,46,.9) 0%,rgba(15,30,46,.3) 100%)}
.article-hero-content{position:relative;z-index:2;padding:var(--space-2xl) 0;max-width:800px}
.article-hero-content h1{color:#fff;margin-bottom:var(--space-sm)}
.article-meta{display:flex;gap:var(--space-md);color:rgba(255,255,255,.7);font-size:.875rem;flex-wrap:wrap}
.article-body{max-width:800px;margin:0 auto;padding:var(--space-xl) 0}
.article-body p{margin-bottom:var(--space-md);line-height:1.8;font-size:1.0625rem}
.article-body h2{margin:var(--space-xl) 0 var(--space-md)}
.article-body h3{margin:var(--space-lg) 0 var(--space-sm)}
.article-body ul{padding-left:var(--space-lg);margin-bottom:var(--space-md)}
.article-body li{margin-bottom:var(--space-xs);list-style:disc;color:var(--color-text-secondary)}
.article-body img{border-radius:var(--radius-md);margin:var(--space-lg) 0}
.article-share{display:flex;gap:var(--space-sm);align-items:center;padding:var(--space-lg) 0;border-top:1px solid var(--color-border-light);border-bottom:1px solid var(--color-border-light);margin:var(--space-xl) 0}
.article-share span{font-family:var(--font-heading);font-weight:600;font-size:.875rem}
.share-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:var(--color-surface-alt);transition:all var(--transition-fast)}
.share-btn:hover{background:var(--color-accent);color:#fff}

/* --- Value Props --- */
.value-props{display:grid;grid-template-columns:1fr;gap:var(--space-lg)}
@media(min-width:640px){.value-props{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.value-props{grid-template-columns:repeat(4,1fr)}}
.value-prop{text-align:center;padding:var(--space-lg)}
.value-prop-icon{width:56px;height:56px;margin:0 auto var(--space-md);display:flex;align-items:center;justify-content:center;background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-full);color:var(--color-sun)}
.value-prop h4{font-size:1rem;margin-bottom:var(--space-xs)}
.value-prop p{font-size:.8125rem;color:var(--color-text-muted);line-height:1.6}

/* --- CTA Banner --- */
.cta-banner{position:relative;background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-navy) 100%);padding:var(--space-2xl) 0;text-align:center;overflow:hidden}
.cta-banner h2{color:#fff;margin-bottom:var(--space-sm)}
.cta-banner p{color:rgba(255,255,255,.8);margin-bottom:var(--space-lg);font-size:1.0625rem}

/* ============================================================
   CUSTOM CHECKOUT SYSTEM
   ============================================================ */
.checkout-page{background:#f5f7fa;min-height:100vh;padding-bottom:var(--space-3xl)}
.checkout-header{background:#fff;border-bottom:1px solid var(--color-border);padding:14px 0;position:sticky;top:0;z-index:99;box-shadow:0 1px 4px rgba(15,30,46,.05)}
.checkout-header-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md)}
.checkout-security-badge{display:inline-flex;align-items:center;gap:6px;font-size:.8125rem;font-weight:600;color:#0f766e;background:#f0fdfa;border:1px solid #ccfbf1;padding:6px 12px;border-radius:var(--radius-full)}
.checkout-support-cta{display:inline-flex;align-items:center;gap:8px;font-size:.875rem;color:var(--color-text-secondary)}
.checkout-support-cta a{color:var(--color-accent);font-weight:600}
.checkout-support-cta a:hover{text-decoration:underline}

/* Stepper */
.checkout-stepper{display:flex;align-items:center;justify-content:center;gap:var(--space-md);padding:18px 0;font-size:.875rem;color:var(--color-text-muted);border-bottom:1px solid var(--color-border-light);background:#fff;margin-bottom:var(--space-xl)}
.checkout-step{display:inline-flex;align-items:center;gap:8px;font-weight:500}
.checkout-step.active{color:var(--color-accent);font-weight:700}
.checkout-step.completed{color:var(--color-success)}
.checkout-step-circle{width:22px;height:22px;border-radius:50%;border:2px solid currentColor;display:inline-flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700}
.checkout-step.active .checkout-step-circle{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}
.checkout-step.completed .checkout-step-circle{background:var(--color-success);color:#fff;border-color:var(--color-success)}
.checkout-step-sep{color:var(--color-border);font-size:.875rem}

/* Layout */
.checkout-grid{display:grid;grid-template-columns:1fr;gap:var(--space-xl);align-items:start}
@media(min-width:992px){.checkout-grid{grid-template-columns:1.35fr 1fr}}

/* Cards & Sections */
.checkout-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:24px;margin-bottom:20px;box-shadow:var(--shadow-sm);transition:border-color var(--transition-fast)}
.checkout-card:focus-within{border-color:var(--color-accent)}
.checkout-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid var(--color-border-light)}
.checkout-card-title{display:flex;align-items:center;gap:12px;font-family:var(--font-heading);font-size:1.15rem;font-weight:700;color:var(--color-navy)}
.checkout-badge-num{width:26px;height:26px;border-radius:50%;background:var(--color-navy);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:.8125rem;font-weight:700}
.checkout-card-subtitle{font-size:.8125rem;color:var(--color-text-muted)}

/* Form Elements */
.checkout-form-group{margin-bottom:14px;display:flex;flex-direction:column;gap:5px}
.checkout-form-group label{font-size:.8125rem;font-weight:600;color:var(--color-text-primary);display:flex;justify-content:space-between}
.checkout-form-group label span{font-weight:400;color:var(--color-text-muted)}
.checkout-input{width:100%;padding:11px 14px;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:.9375rem;background:#fff;color:var(--color-text-primary);transition:all var(--transition-fast)}
.checkout-input:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px rgba(27,77,122,.12)}
.checkout-input.input-error{border-color:var(--color-error);background:#fef2f2}
.checkout-input-error-msg{font-size:.75rem;color:var(--color-error);margin-top:2px}
.checkout-row{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:600px){.checkout-row-2{grid-template-columns:1fr 1fr}.checkout-row-3{grid-template-columns:2fr 1fr 1fr}}

/* Checkbox Control */
.checkout-checkbox-label{display:flex;align-items:flex-start;gap:10px;font-size:.875rem;color:var(--color-text-secondary);cursor:pointer;margin-top:8px;user-select:none}
.checkout-checkbox-label input[type="checkbox"]{margin-top:3px;accent-color:var(--color-accent);width:16px;height:16px;cursor:pointer}

/* Shipping Method Options */
.shipping-option{border:2px solid var(--color-border);border-radius:var(--radius-sm);padding:14px 16px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;transition:all var(--transition-fast);background:#fff;margin-bottom:10px}
.shipping-option:hover{border-color:var(--color-accent)}
.shipping-option.selected{border-color:var(--color-accent);background:#f8fafc;box-shadow:0 0 0 1px var(--color-accent)}
.shipping-option-left{display:flex;align-items:center;gap:12px}
.shipping-option-radio{accent-color:var(--color-accent);width:18px;height:18px}
.shipping-option-title{font-weight:700;font-size:.9375rem;color:var(--color-navy)}
.shipping-option-desc{font-size:.8125rem;color:var(--color-text-muted);margin-top:2px}
.shipping-option-price{font-family:var(--font-mono);font-weight:800;color:var(--color-success);font-size:.9375rem}

/* Payment Selector & Panels */
.payment-tabs{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:16px}
@media(max-width:600px){.payment-tabs{grid-template-columns:1fr}}
.payment-tab{border:2px solid var(--color-border);border-radius:var(--radius-sm);padding:12px 10px;text-align:center;cursor:pointer;background:#fff;transition:all var(--transition-fast);display:flex;flex-direction:column;align-items:center;gap:6px}
.payment-tab:hover{border-color:var(--color-accent);background:#fbfcfe}
.payment-tab.active{border-color:var(--color-accent);background:#f0f5fa;color:var(--color-accent);font-weight:700}
.payment-tab svg{width:22px;height:22px}
.payment-tab span{font-size:.8125rem}

.payment-panel{display:none;background:#fafbfe;border:1px solid var(--color-border-light);border-radius:var(--radius-sm);padding:18px;margin-top:12px}
.payment-panel.active{display:block;animation:fadeIn .25s ease}

/* Credit Card Inputs */
.card-input-wrap{position:relative}
.card-icons-indicator{position:absolute;right:10px;top:50%;transform:translateY(-50%);display:flex;gap:4px;pointer-events:none}
.card-badge-icon{font-size:.6875rem;font-weight:800;padding:2px 6px;border-radius:3px;background:#e2e8f0;color:#334155}
.card-badge-icon.active{background:var(--color-navy);color:#fff}

/* Bank Wire Details Box */
.wire-instruction-box{background:#f8fafc;border-left:4px solid var(--color-sun);padding:14px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:.875rem;line-height:1.6}
.wire-instruction-box strong{color:var(--color-navy)}

/* Shopify Direct Checkout Fallback */
.shopify-checkout-box{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:var(--radius-sm);padding:16px;text-align:center;margin-top:10px}
.shopify-checkout-box p{font-size:.875rem;color:#166534;margin-bottom:12px}

/* Summary Sidebar */
.checkout-summary-wrap{position:sticky;top:84px}
.checkout-summary-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:24px;box-shadow:var(--shadow-sm)}
.checkout-summary-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--color-border-light)}
.checkout-summary-header h3{font-size:1.15rem;margin:0}

/* Line Items */
.checkout-items-list{max-height:360px;overflow-y:auto;margin-bottom:18px;padding-right:4px}
.checkout-line-item{display:flex;align-items:center;gap:14px;padding:12px 0;border-bottom:1px solid var(--color-border-light)}
.checkout-item-thumb{position:relative;width:64px;height:64px;flex-shrink:0}
.checkout-item-thumb img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--color-border-light);background:#f8fafc}
.checkout-item-qty-badge{position:absolute;top:-6px;right:-6px;background:var(--color-navy);color:#fff;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.6875rem;font-weight:700}
.checkout-item-details{flex-grow:1;min-width:0}
.checkout-item-title{font-size:.875rem;font-weight:600;color:var(--color-navy);line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.checkout-item-variant{font-size:.75rem;color:var(--color-text-muted);margin-top:2px}
.checkout-item-price{font-family:var(--font-mono);font-weight:700;font-size:.9375rem;white-space:nowrap}

/* Promo Code Box */
.promo-box{display:flex;gap:8px;margin-bottom:18px;padding-bottom:18px;border-bottom:1px solid var(--color-border-light)}
.promo-input{flex-grow:1;padding:10px 12px;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:.875rem;text-transform:uppercase}
.promo-input:focus{outline:none;border-color:var(--color-accent)}
.promo-btn{padding:10px 18px;font-size:.875rem;background:var(--color-navy);color:#fff;border-radius:var(--radius-sm);font-weight:600;cursor:pointer;transition:background var(--transition-fast)}
.promo-btn:hover{background:var(--color-accent)}
.promo-tag{display:inline-flex;align-items:center;gap:6px;background:#fef3c7;color:#92400e;border:1px solid #fde68a;padding:4px 10px;border-radius:var(--radius-full);font-size:.8125rem;font-weight:600;margin-bottom:12px}
.promo-tag-remove{cursor:pointer;font-weight:800;font-size:1rem;color:#b45309;line-height:1}

/* Breakdown Table */
.summary-table{display:flex;flex-direction:column;gap:10px;font-size:.875rem;margin-bottom:20px}
.summary-row{display:flex;justify-content:space-between;align-items:center;color:var(--color-text-secondary)}
.summary-row.discount-row{color:#15803d;font-weight:600}
.summary-row.total-row{border-top:2px solid var(--color-border-light);padding-top:14px;margin-top:4px;color:var(--color-navy);font-size:1.15rem;font-weight:800}
.summary-row.total-row span:last-child{font-family:var(--font-mono);font-size:1.35rem;color:var(--color-navy)}

/* Submit Button & Security */
.checkout-submit-btn{box-shadow:0 4px 16px rgba(27,77,122,.3);letter-spacing:.02em}
.checkout-guarantee-badges{margin-top:20px;border-top:1px solid var(--color-border-light);padding-top:16px;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.guarantee-item{display:flex;align-items:center;gap:8px;font-size:.75rem;color:var(--color-text-secondary);font-weight:500}
.guarantee-item svg{color:var(--color-sun);flex-shrink:0}

/* Processing Modal Overlay */
.checkout-processing-overlay{position:fixed;inset:0;background:rgba(15,30,46,.75);backdrop-filter:blur(6px);z-index:999;display:none;align-items:center;justify-content:center}
.checkout-processing-overlay.show{display:flex}
.processing-card{background:#fff;padding:36px 40px;border-radius:var(--radius-lg);text-align:center;box-shadow:var(--shadow-lg);max-width:400px;width:90%}
.processing-card .spinner{width:48px;height:48px;border-width:4px;border-top-color:var(--color-accent);margin:0 auto 20px}
.processing-card h3{font-size:1.25rem;color:var(--color-navy);margin-bottom:8px}
.processing-card p{font-size:.875rem;color:var(--color-text-secondary)}

/* Order Confirmation Screen */
.order-confirmation-wrap{max-width:820px;margin:var(--space-2xl) auto 0;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden}
.confirmation-hero{background:linear-gradient(135deg,#0f1e2e 0%,#1b3a5c 100%);color:#fff;padding:36px 30px;text-align:center}
.confirmation-check-icon{width:64px;height:64px;border-radius:50%;background:#22c55e;color:#fff;display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;box-shadow:0 0 20px rgba(34,197,94,.4)}
.confirmation-hero h1{color:#fff;font-size:clamp(1.5rem,4vw,2.25rem);margin-bottom:8px}
.confirmation-hero p{color:rgba(255,255,255,.85);font-size:1rem}
.confirmation-order-num{display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);padding:6px 18px;border-radius:var(--radius-full);font-family:var(--font-mono);font-weight:700;color:var(--color-sun);margin-top:12px;letter-spacing:.05em}
.confirmation-body{padding:30px}
.confirmation-grid{display:grid;grid-template-columns:1fr;gap:24px;margin-bottom:28px}
@media(min-width:640px){.confirmation-grid{grid-template-columns:1fr 1fr}}
.confirmation-detail-box{background:#f8fafc;border:1px solid var(--color-border-light);border-radius:var(--radius-md);padding:18px}
.confirmation-detail-box h4{font-size:.875rem;text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-muted);margin-bottom:10px}
.confirmation-detail-box p{font-size:.9375rem;color:var(--color-navy);line-height:1.5}
.confirmation-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:20px;padding-top:20px;border-top:1px solid var(--color-border-light)}
@media print{
  .checkout-header,.confirmation-actions,.announcement-bar,.footer{display:none!important}
  .order-confirmation-wrap{border:none!important;box-shadow:none!important;margin:0!important}
}