/**
 * Shoelist — Premium Design System
 * Magazine-quality, calm academic navy, Apple-inspired typography
 * Inspired by Quanta Magazine & Panoraven
 */

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
    /* Navy palette */
    --navy-950: #0a0f1e;
    --navy-900: #0f172a;
    --navy-800: #1e293b;
    --navy-700: #1e3a8a;
    --navy-600: #1d4ed8;
    --navy-500: #3b82f6;
    --navy-400: #60a5fa;
    --navy-300: #93c5fd;
    --navy-200: #bfdbfe;
    --navy-100: #dbeafe;
    --navy-50:  #eff6ff;

    /* Warm accent */
    --amber-600: #d97706;
    --amber-500: #f59e0b;
    --amber-400: #fbbf24;
    --amber-100: #fef3c7;

    /* Neutrals */
    --ink-900: #1a1f2e;
    --ink-700: #374151;
    --ink-500: #6b7280;
    --ink-300: #d1d5db;
    --ink-100: #f3f4f6;
    --ink-50:  #f9fafb;
    --white:   #ffffff;

    /* Semantic */
    --color-primary:    var(--navy-700);
    --color-accent:     var(--amber-500);
    --color-text:       var(--ink-900);
    --color-text-muted: var(--ink-500);
    --color-bg:         var(--white);
    --color-bg-subtle:  var(--ink-50);
    --color-border:     var(--ink-300);

    /* Gradients */
    --grad-hero:    linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #1d4ed8 100%);
    --grad-card:    linear-gradient(145deg, #ffffff 0%, #f0f4ff 100%);
    --grad-accent:  linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --grad-subtle:  linear-gradient(180deg, #f9fafb 0%, #eff6ff 100%);
    --grad-navy-soft: linear-gradient(135deg, #eff6ff 0%, #dbeafe 50%, #f0f4ff 100%);

    /* Typography — Apple-inspired proportional scale */
    --font-display: 'DM Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

    --text-xs:   0.75rem;    /* 12px */
    --text-sm:   0.875rem;   /* 14px */
    --text-base: 1rem;       /* 16px */
    --text-lg:   1.125rem;   /* 18px */
    --text-xl:   1.25rem;    /* 20px */
    --text-2xl:  1.5rem;     /* 24px */
    --text-3xl:  1.875rem;   /* 30px */
    --text-4xl:  2.25rem;    /* 36px */
    --text-5xl:  3rem;       /* 48px */
    --text-6xl:  3.75rem;    /* 60px */
    --text-7xl:  4.5rem;     /* 72px */

    --leading-tight:  1.2;
    --leading-snug:   1.375;
    --leading-normal: 1.5;
    --leading-relaxed:1.625;
    --leading-loose:  2;

    --tracking-tight:  -0.025em;
    --tracking-normal:  0;
    --tracking-wide:    0.025em;
    --tracking-wider:   0.05em;
    --tracking-widest:  0.1em;

    /* Spacing */
    --space-1:  0.25rem;
    --space-2:  0.5rem;
    --space-3:  0.75rem;
    --space-4:  1rem;
    --space-5:  1.25rem;
    --space-6:  1.5rem;
    --space-8:  2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Radii */
    --radius-sm:   0.375rem;
    --radius-md:   0.75rem;
    --radius-lg:   1rem;
    --radius-xl:   1.5rem;
    --radius-2xl:  2rem;
    --radius-full: 9999px;

    /* Shadows — soft & layered */
    --shadow-xs:  0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-sm:  0 2px 8px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
    --shadow-md:  0 4px 16px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.05);
    --shadow-lg:  0 8px 32px rgba(15, 23, 42, 0.10), 0 4px 12px rgba(15, 23, 42, 0.06);
    --shadow-xl:  0 20px 48px rgba(15, 23, 42, 0.12), 0 8px 20px rgba(15, 23, 42, 0.07);
    --shadow-2xl: 0 32px 64px rgba(15, 23, 42, 0.15), 0 16px 32px rgba(15, 23, 42, 0.08);
    --shadow-navy: 0 8px 32px rgba(30, 58, 138, 0.20);
    --shadow-amber: 0 8px 24px rgba(245, 158, 11, 0.25);

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out:   cubic-bezier(0.4, 0, 0.2, 1);
    --duration-fast: 150ms;
    --duration-base: 250ms;
    --duration-slow: 400ms;
    --duration-slower: 600ms;

    /* Layout */
    --container-sm:  640px;
    --container-md:  768px;
    --container-lg:  1024px;
    --container-xl:  1280px;
    --container-2xl: 1536px;
    --container-max: 1400px;

    /* Z-index */
    --z-below:   -1;
    --z-base:     0;
    --z-raised:   10;
    --z-dropdown: 100;
    --z-sticky:   200;
    --z-overlay:  300;
    --z-modal:    400;
    --z-toast:    500;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
    background-color: var(--color-bg);
    padding-top: 72px;
    overflow-x: hidden;
}

img, video, svg {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-in-out);
}

a:hover { color: var(--navy-600); }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    color: var(--ink-900);
    margin-bottom: var(--space-4);
}

h1 { font-size: clamp(var(--text-4xl), 5vw, var(--text-7xl)); font-weight: 800; }
h2 { font-size: clamp(var(--text-3xl), 3.5vw, var(--text-5xl)); font-weight: 700; }
h3 { font-size: clamp(var(--text-2xl), 2.5vw, var(--text-4xl)); }
h4 { font-size: clamp(var(--text-xl), 2vw, var(--text-3xl)); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p { margin-bottom: var(--space-4); line-height: var(--leading-relaxed); }

.text-display {
    font-family: var(--font-display);
    font-size: clamp(var(--text-5xl), 7vw, var(--text-7xl));
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.05;
}

.text-overline {
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--navy-600);
}

.text-lead {
    font-size: clamp(var(--text-lg), 2vw, var(--text-2xl));
    line-height: var(--leading-relaxed);
    color: var(--ink-700);
    font-weight: 400;
}

.text-balance { text-wrap: balance; }

/* ============================================================
   CONTAINER & LAYOUT
   ============================================================ */
.sl-container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: clamp(var(--space-4), 4vw, var(--space-12));
    padding-right: clamp(var(--space-4), 4vw, var(--space-12));
}

.sl-container--narrow {
    max-width: var(--container-lg);
}

.sl-container--wide {
    max-width: var(--container-2xl);
}

/* ============================================================
   SITE HEADER — Glassmorphism sticky nav
   ============================================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    height: 72px;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(30, 58, 138, 0.08);
    transition: background var(--duration-base) var(--ease-in-out),
                box-shadow var(--duration-base) var(--ease-in-out);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow-md);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: var(--space-6);
}

.site-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    transition: opacity var(--duration-fast);
}

.site-logo:hover { opacity: 0.8; }

/* Nav links */
.main-nav__menu {
    display: flex;
    list-style: none;
    gap: var(--space-1);
    align-items: center;
    margin: 0;
    padding: 0;
}

.main-nav__menu li { margin: 0; }

.main-nav__menu a {
    display: block;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--ink-700);
    border-radius: var(--radius-sm);
    transition: color var(--duration-fast), background var(--duration-fast);
    white-space: nowrap;
}

.main-nav__menu a:hover,
.main-nav__menu a.active {
    color: var(--navy-700);
    background: var(--navy-50);
    text-decoration: none;
}

.main-nav__menu a.active {
    font-weight: 600;
}

/* Header actions */
.site-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
}

/* Mobile toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    border-radius: var(--radius-sm);
    gap: 5px;
    padding: 0;
    transition: background var(--duration-fast);
}

.mobile-menu-toggle:hover { background: var(--ink-100); }

.mobile-menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink-700);
    border-radius: 2px;
    transition: transform var(--duration-base) var(--ease-out-expo),
                opacity var(--duration-base);
}

.mobile-menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-menu-toggle.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.mobile-menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Dropdown */
.dropdown { position: relative; }

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--ink-700);
    background: none;
    border: 1px solid var(--ink-300);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--duration-fast);
}

.dropdown-toggle:hover {
    border-color: var(--navy-300);
    color: var(--navy-700);
    background: var(--navy-50);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    min-width: 200px;
    background: var(--white);
    border: 1px solid var(--ink-100);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--duration-base) var(--ease-out-expo);
    z-index: var(--z-dropdown);
    list-style: none;
}

.dropdown:hover .dropdown-menu,
.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li { margin: 0; }

.dropdown-menu a,
.dropdown-menu button {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    color: var(--ink-700);
    border-radius: var(--radius-sm);
    transition: background var(--duration-fast), color var(--duration-fast);
    border: none;
    background: none;
    cursor: pointer;
    text-align: left;
}

.dropdown-menu a:hover,
.dropdown-menu button:hover {
    background: var(--ink-50);
    color: var(--navy-700);
    text-decoration: none;
}

.dropdown-divider {
    border: none;
    border-top: 1px solid var(--ink-100);
    margin: var(--space-1) 0;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-full);
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: all var(--duration-base) var(--ease-out-expo);
    white-space: nowrap;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0);
    transition: background var(--duration-fast);
}

.btn:hover::after { background: rgba(255,255,255,0.1); }

.btn--primary {
    background: var(--navy-700);
    color: var(--white);
    border-color: var(--navy-700);
    box-shadow: 0 2px 8px rgba(30, 58, 138, 0.3);
}

.btn--primary:hover {
    background: var(--navy-600);
    border-color: var(--navy-600);
    box-shadow: 0 4px 16px rgba(30, 58, 138, 0.4);
    transform: translateY(-1px);
    color: var(--white);
    text-decoration: none;
}

.btn--primary:active { transform: translateY(0); }

.btn--secondary {
    background: var(--amber-500);
    color: var(--white);
    border-color: var(--amber-500);
    box-shadow: var(--shadow-amber);
}

.btn--secondary:hover {
    background: var(--amber-600);
    border-color: var(--amber-600);
    transform: translateY(-1px);
    color: var(--white);
    text-decoration: none;
}

.btn--outline {
    background: transparent;
    color: var(--navy-700);
    border-color: var(--navy-300);
}

.btn--outline:hover {
    background: var(--navy-50);
    border-color: var(--navy-700);
    color: var(--navy-700);
    text-decoration: none;
}

.btn--ghost {
    background: transparent;
    color: var(--ink-700);
    border-color: transparent;
}

.btn--ghost:hover {
    background: var(--ink-100);
    color: var(--ink-900);
    text-decoration: none;
}

.btn--link {
    background: transparent;
    color: var(--navy-700);
    border-color: transparent;
    padding-left: 0;
    padding-right: 0;
    border-radius: 0;
}

.btn--link:hover {
    color: var(--navy-600);
    text-decoration: underline;
}

.btn--sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
}

.btn--lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    border-radius: var(--radius-full);
}

.btn--xl {
    padding: var(--space-5) var(--space-10);
    font-size: var(--text-lg);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--grad-hero);
    overflow: hidden;
    padding: var(--space-24) 0 var(--space-32);
}

/* Animated background orbs */
.hero::before {
    content: '';
    position: absolute;
    width: 800px;
    height: 800px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation: heroOrb1 12s ease-in-out infinite alternate;
}

.hero::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.10) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    animation: heroOrb2 15s ease-in-out infinite alternate;
}

@keyframes heroOrb1 {
    from { transform: translate(0, 0) scale(1); }
    to   { transform: translate(-60px, 40px) scale(1.1); }
}

@keyframes heroOrb2 {
    from { transform: translate(0, 0) scale(1); }
    to   { transform: translate(40px, -30px) scale(1.15); }
}

.hero .sl-container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.hero__content { color: var(--white); }

.hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--amber-400);
    margin-bottom: var(--space-6);
}

.hero__eyebrow .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--amber-400);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(0.8); }
}

.hero h1 {
    color: var(--white);
    margin-bottom: var(--space-6);
    font-size: clamp(var(--text-4xl), 5.5vw, var(--text-7xl));
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.05;
}

.hero h1 .highlight {
    background: var(--grad-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: clamp(var(--text-base), 2vw, var(--text-xl));
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: var(--space-10);
    line-height: var(--leading-relaxed);
    max-width: 520px;
}

.hero__actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    align-items: center;
}

.hero__actions .btn--outline {
    color: rgba(255,255,255,0.85);
    border-color: rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.05);
}

.hero__actions .btn--outline:hover {
    background: rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.6);
    color: var(--white);
}

.hero__stats {
    display: flex;
    gap: var(--space-8);
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255,255,255,0.12);
}

.hero__stat-number {
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.02em;
    line-height: 1;
    font-family: var(--font-display);
}

.hero__stat-label {
    font-size: var(--text-xs);
    color: rgba(255,255,255,0.55);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    margin-top: var(--space-1);
}

/* Hero visual */
.hero__visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__card-stack {
    position: relative;
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
}

.hero__card-stack .card-float {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    box-shadow: 0 24px 64px rgba(0,0,0,0.3);
}

.hero__card-stack .card-float--back {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 80%;
    opacity: 0.5;
    transform: rotate(3deg);
    z-index: 0;
}

.hero__card-stack .card-float--front {
    position: relative;
    z-index: 1;
}

.hero__image {
    position: relative;
    z-index: 1;
}

.hero__image img {
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    filter: drop-shadow(0 32px 64px rgba(0,0,0,0.4));
}

/* Floating badges */
.hero__badge {
    position: absolute;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--ink-900);
    animation: float 4s ease-in-out infinite;
}

.hero__badge--1 {
    top: 10%;
    right: -5%;
    animation-delay: 0s;
}

.hero__badge--2 {
    bottom: 15%;
    left: -8%;
    animation-delay: 2s;
}

.hero__badge .badge-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-base);
}

.hero__badge .badge-icon--navy { background: var(--navy-100); color: var(--navy-700); }
.hero__badge .badge-icon--amber { background: var(--amber-100); color: var(--amber-600); }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-10px); }
}

/* Wave separator */
.wave-separator {
    position: relative;
    overflow: hidden;
    line-height: 0;
    margin-bottom: -2px;
}

.wave-separator svg {
    display: block;
    width: 100%;
    height: auto;
}

/* ============================================================
   SECTION STYLES
   ============================================================ */
.sl-section {
    padding: var(--space-24) 0;
    position: relative;
}

.sl-section--subtle {
    background: var(--grad-subtle);
}

.sl-section--navy {
    background: var(--grad-hero);
    color: var(--white);
}

.sl-section--navy h2,
.sl-section--navy h3,
.sl-section--navy p {
    color: var(--white);
}

.sl-section--navy .text-muted {
    color: rgba(255,255,255,0.65);
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--space-16);
}

.section-header .text-overline {
    margin-bottom: var(--space-3);
    display: block;
}

.section-header h2 {
    margin-bottom: var(--space-4);
}

.section-header p {
    font-size: var(--text-lg);
    color: var(--ink-500);
    margin-bottom: 0;
}

/* ============================================================
   FEATURE CARDS
   ============================================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.feature-card {
    background: var(--white);
    border: 1px solid var(--ink-100);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: transform var(--duration-base) var(--ease-out-expo),
                box-shadow var(--duration-base) var(--ease-out-expo),
                border-color var(--duration-base);
    position: relative;
    overflow: hidden;
    cursor: default;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--grad-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--duration-base) var(--ease-out-expo);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--navy-200);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    background: var(--navy-50);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    color: var(--navy-700);
    margin-bottom: var(--space-5);
    transition: background var(--duration-base), transform var(--duration-base);
}

.feature-card:hover .feature-card__icon {
    background: var(--navy-100);
    transform: scale(1.05);
}

.feature-card h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-3);
    color: var(--ink-900);
}

.feature-card p {
    font-size: var(--text-sm);
    color: var(--ink-500);
    line-height: var(--leading-relaxed);
    margin-bottom: 0;
}

/* ============================================================
   SHOE CARDS — Magazine style
   ============================================================ */
.shoe-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--ink-100);
}

.shoe-section-label {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--ink-900);
    font-family: var(--font-display);
}

.shoe-section-label .label-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.label-dot--girls  { background: #ec4899; }
.label-dot--boys   { background: var(--navy-600); }
.label-dot--sports { background: #10b981; }

.shoe-grid-magazine {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-5);
}

.shoe-card-magazine {
    background: var(--white);
    border: 1px solid var(--ink-100);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: transform var(--duration-base) var(--ease-out-expo),
                box-shadow var(--duration-base) var(--ease-out-expo);
    position: relative;
    group: true;
}

.shoe-card-magazine:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.shoe-card-magazine__image {
    aspect-ratio: 4/3;
    background: var(--grad-navy-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.shoe-card-magazine__image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: var(--space-4);
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

.shoe-card-magazine:hover .shoe-card-magazine__image img {
    transform: scale(1.06);
}

.shoe-card-magazine__image .placeholder-icon {
    font-size: var(--text-4xl);
    color: var(--navy-300);
}

.shoe-card-magazine__body {
    padding: var(--space-4);
}

.shoe-card-magazine__brand {
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: var(--navy-600);
    margin-bottom: var(--space-1);
}

.shoe-card-magazine__name {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--ink-900);
    line-height: var(--leading-snug);
    margin-bottom: var(--space-2);
}

.shoe-card-magazine__meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.sl-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px var(--space-2);
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-full);
    letter-spacing: 0.02em;
}

.sl-badge--navy   { background: var(--navy-100); color: var(--navy-700); }
.sl-badge--pink   { background: #fce7f3; color: #be185d; }
.sl-badge--green  { background: #d1fae5; color: #065f46; }
.sl-badge--amber  { background: var(--amber-100); color: var(--amber-600); }
.sl-badge--gray   { background: var(--ink-100); color: var(--ink-700); }

/* ============================================================
   SCHOOL & SHOP CARDS
   ============================================================ */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-6);
}

.entity-card {
    background: var(--white);
    border: 1px solid var(--ink-100);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    transition: transform var(--duration-base) var(--ease-out-expo),
                box-shadow var(--duration-base) var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.entity-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--grad-hero);
    transform: scaleX(0);
    transition: transform var(--duration-base) var(--ease-out-expo);
}

.entity-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.entity-card:hover::after { transform: scaleX(1); }

.entity-card__logo {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    object-fit: contain;
    background: var(--ink-50);
    padding: var(--space-2);
}

.entity-card__placeholder {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    background: var(--grad-navy-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    font-weight: 700;
    color: var(--navy-600);
    letter-spacing: var(--tracking-wider);
}

.entity-card__name {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--ink-900);
    margin: 0;
}

.entity-card__location {
    font-size: var(--text-sm);
    color: var(--ink-500);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    margin: 0;
}

.entity-card__action {
    margin-top: auto;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
    background: var(--grad-hero);
    padding: var(--space-24) 0;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.cta-section::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245,158,11,0.12) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.cta-section .sl-container { position: relative; z-index: 1; }

.cta-section h2 {
    color: var(--white);
    margin-bottom: var(--space-4);
    font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
}

.cta-section p {
    color: rgba(255,255,255,0.75);
    font-size: var(--text-lg);
    max-width: 560px;
    margin: 0 auto var(--space-10);
}

.cta-section .btn--outline {
    color: rgba(255,255,255,0.85);
    border-color: rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.06);
}

.cta-section .btn--outline:hover {
    background: rgba(255,255,255,0.14);
    border-color: rgba(255,255,255,0.6);
    color: var(--white);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
    background: var(--navy-950);
    color: rgba(255,255,255,0.65);
    padding: var(--space-20) 0 var(--space-8);
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: var(--space-12);
    margin-bottom: var(--space-16);
}

.site-footer__brand p {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: rgba(255,255,255,0.5);
    margin-top: var(--space-4);
    max-width: 280px;
}

.site-footer__col-title {
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: rgba(255,255,255,0.35);
    margin-bottom: var(--space-5);
    font-family: var(--font-display);
}

.site-footer__links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-footer__links li { margin-bottom: var(--space-3); }

.site-footer__links a {
    font-size: var(--text-sm);
    color: rgba(255,255,255,0.6);
    transition: color var(--duration-fast);
}

.site-footer__links a:hover {
    color: var(--white);
    text-decoration: none;
}

.site-footer__subscribe p {
    font-size: var(--text-sm);
    color: rgba(255,255,255,0.5);
    margin-bottom: var(--space-4);
}

.subscribe-form__fields {
    display: flex;
    gap: 0;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-1);
    transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.subscribe-form__fields:focus-within {
    border-color: rgba(255,255,255,0.25);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.subscribe-form__fields input[type="email"] {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    color: var(--white);
    font-family: var(--font-body);
}

.subscribe-form__fields input[type="email"]::placeholder {
    color: rgba(255,255,255,0.35);
}

.subscribe-form__fields .newsletter-btn {
    border-radius: var(--radius-md);
    padding: var(--space-2) var(--space-5);
    font-size: var(--text-sm);
    flex-shrink: 0;
}

.site-footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255,255,255,0.06);
}

.site-footer__bottom p {
    font-size: var(--text-xs);
    color: rgba(255,255,255,0.3);
    margin: 0;
}

.site-footer__social {
    display: flex;
    gap: var(--space-2);
}

.site-footer__social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.5);
    transition: background var(--duration-fast), color var(--duration-fast);
}

.site-footer__social a:hover {
    background: var(--navy-700);
    color: var(--white);
}

.site-footer__social .icon {
    width: 16px;
    height: 16px;
}

/* ============================================================
   FLASH MESSAGES
   ============================================================ */
.flash-container {
    position: fixed;
    top: 80px;
    right: var(--space-4);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    max-width: 400px;
    width: calc(100vw - var(--space-8));
}

.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    box-shadow: var(--shadow-lg);
    animation: slideInRight var(--duration-base) var(--ease-out-expo);
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to   { transform: translateX(0); opacity: 1; }
}

.alert--success {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
}

.alert--error, .alert--danger {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.alert--info {
    background: var(--navy-50);
    border: 1px solid var(--navy-200);
    color: var(--navy-700);
}

.alert--warning {
    background: var(--amber-100);
    border: 1px solid #fde68a;
    color: #92400e;
}

.alert .btn-close {
    margin-left: auto;
    flex-shrink: 0;
    opacity: 0.5;
    transition: opacity var(--duration-fast);
}

.alert .btn-close:hover { opacity: 1; }

/* ============================================================
   ISOMETRIC DECORATIVE ELEMENTS
   ============================================================ */
.iso-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(30,58,138,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30,58,138,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.iso-dots {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(30,58,138,0.08) 1px, transparent 1px);
    background-size: 24px 24px;
    pointer-events: none;
}

/* ============================================================
   STATS / COUNTER SECTION
   ============================================================ */
.stats-section {
    padding: var(--space-16) 0;
    background: var(--white);
    border-top: 1px solid var(--ink-100);
    border-bottom: 1px solid var(--ink-100);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
    text-align: center;
}

.stat-item { position: relative; }

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 40px;
    width: 1px;
    background: var(--ink-200);
}

.stat-number {
    font-family: var(--font-display);
    font-size: var(--text-5xl);
    font-weight: 800;
    color: var(--navy-700);
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--ink-500);
    font-weight: 500;
}

/* ============================================================
   SCROLL PROGRESS BAR
   ============================================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--grad-accent);
    z-index: calc(var(--z-sticky) + 1);
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 50ms linear;
    border-radius: 0 2px 2px 0;
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--navy-700);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-navy);
    opacity: 0;
    transform: translateY(16px);
    transition: opacity var(--duration-base), transform var(--duration-base) var(--ease-out-expo);
    z-index: var(--z-raised);
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--navy-600);
    transform: translateY(-2px);
}

/* ============================================================
   GAMIFIED ELEMENTS
   ============================================================ */
/* Ripple effect on buttons */
.btn .ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    transform: scale(0);
    animation: ripple 600ms linear;
    pointer-events: none;
}

@keyframes ripple {
    to { transform: scale(4); opacity: 0; }
}

/* Hover shimmer on cards */
.shimmer-card {
    position: relative;
    overflow: hidden;
}

.shimmer-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255,255,255,0.4) 50%,
        transparent 100%
    );
    transform: skewX(-20deg);
    transition: left 0s;
}

.shimmer-card:hover::after {
    left: 150%;
    transition: left 600ms ease-in-out;
}

/* Count-up animation trigger */
.count-up {
    display: inline-block;
    transition: transform var(--duration-base) var(--ease-out-expo);
}

/* Stagger animation for grid items */
.stagger-in > * {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity var(--duration-slow) var(--ease-out-expo),
                transform var(--duration-slow) var(--ease-out-expo);
}

.stagger-in.animated > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0ms; }
.stagger-in.animated > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 80ms; }
.stagger-in.animated > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 160ms; }
.stagger-in.animated > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 240ms; }
.stagger-in.animated > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 320ms; }
.stagger-in.animated > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 400ms; }
.stagger-in.animated > *:nth-child(n+7) { opacity: 1; transform: none; transition-delay: 480ms; }

/* Fade-in-up on scroll */
.fade-in-up {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity var(--duration-slower) var(--ease-out-expo),
                transform var(--duration-slower) var(--ease-out-expo);
}

.fade-in-up.visible {
    opacity: 1;
    transform: none;
}

/* ============================================================
   SHOE LIST SECTION (homepage)
   ============================================================ */
.shoe-list-section {
    padding: var(--space-20) 0;
    background: var(--grad-subtle);
    position: relative;
}

.shoe-list-section .iso-dots {
    opacity: 0.5;
}

.shoe-list-card {
    background: var(--white);
    border: 1px solid var(--ink-100);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.shoe-list-card__header {
    background: var(--grad-hero);
    padding: var(--space-5) var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.shoe-list-card__header h3 {
    color: var(--white);
    font-size: var(--text-lg);
    margin: 0;
    font-weight: 700;
}

.shoe-list-card__header .header-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--text-base);
}

.shoe-list-card__body {
    padding: var(--space-6);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1280px) {
    .hero .sl-container {
        gap: var(--space-10);
    }
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }

    .stat-item:nth-child(2)::after { display: none; }

    .site-footer__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-8);
    }
}

@media (max-width: 900px) {
    body { padding-top: 64px; }

    .site-header { height: 64px; }
    .site-header__inner { height: 64px; }

    .hero {
        min-height: auto;
        padding: var(--space-20) 0 var(--space-16);
    }

    .hero .sl-container {
        grid-template-columns: 1fr;
        gap: var(--space-12);
        text-align: center;
    }

    .hero__subtitle { max-width: 100%; }

    .hero__actions {
        justify-content: center;
    }

    .hero__stats {
        justify-content: center;
    }

    .hero__visual { display: none; }

    .mobile-menu-toggle { display: flex; }

    .main-nav__menu {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--ink-100);
        padding: var(--space-4);
        gap: var(--space-1);
        box-shadow: var(--shadow-lg);
    }

    .main-nav__menu.show { display: flex; }

    .main-nav__menu li { margin: 0; }

    .main-nav__menu a {
        padding: var(--space-3) var(--space-4);
        border-radius: var(--radius-md);
        font-size: var(--text-base);
    }

    .main-nav { position: static; }
}

@media (max-width: 768px) {
    .sl-section { padding: var(--space-16) 0; }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .shoe-grid-magazine {
        grid-template-columns: repeat(2, 1fr);
    }

    .site-footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .site-footer__bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
}

@media (max-width: 576px) {
    .hero__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero__actions .btn {
        text-align: center;
        justify-content: center;
    }

    .hero__stats {
        gap: var(--space-6);
        flex-wrap: wrap;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .shoe-grid-magazine {
        grid-template-columns: 1fr;
    }

    .back-to-top {
        bottom: var(--space-4);
        right: var(--space-4);
    }
}

/* ============================================================
   WIDE SCREENS (2K+)
   ============================================================ */
@media (min-width: 1920px) {
    :root {
        --container-max: 1600px;
    }

    body { font-size: 17px; }
}

@media (min-width: 2560px) {
    :root {
        --container-max: 1920px;
    }

    body { font-size: 18px; }
}

/* ============================================================
   UTILITIES
   ============================================================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-4        { gap: var(--space-4); }
.gap-6        { gap: var(--space-6); }

.mt-auto { margin-top: auto; }
.mb-0    { margin-bottom: 0; }

.hidden  { display: none !important; }
.visible { visibility: visible; }

/* Overrides for Bootstrap conflicts */
.site-main { margin: 0; padding: 0; max-width: 100%; }

/* ============================================================
   CUSTOM BULLET ICON FOR UL LISTS
   ============================================================ */
ul {
    list-style: none;
}

ul > li {
    position: relative;
    padding-left: 1.5em;
}

ul > li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.2em;
    width: 0.9em;
    height: 0.9em;
    background: url('/img/bullet.svg') no-repeat center / contain;
}

:is(.site-footer, .site-header, .main-nav, .site-footer__links) ul > li,
:is(.main-nav__menu, .dropdown-menu, .sidebar-menu, .pagination,
    .nav, .list-group, .list-group-flush, .list-unstyled,
    .browse-links, .school-list) > li {
    padding-left: 0;
}

:is(.site-footer, .site-header, .main-nav, .site-footer__links) ul > li::before,
:is(.main-nav__menu, .dropdown-menu, .sidebar-menu, .pagination,
    .nav, .list-group, .list-group-flush, .list-unstyled,
    .browse-links, .school-list) > li::before {
    content: none;
}

.modal-backdrop {
    z-index: 1 !important;
}