/* ── Shared Design System — Stella Maris Student Store ── */
:root {
    --primary: #0f172a;
    --secondary: #ffffff;
    --accent: #2563eb;
    --accent-light: rgba(37, 99, 235, 0.12);
    --accent-hover: #1d4ed8;
    --accent-glow: rgba(37, 99, 235, 0.35);
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-subtle: #94a3b8;
    --bg-light: #f1f5f9;
    --bg-section: #f8faff;
    --bg-white: #ffffff;
    --bg-dark: #0a0f1e;
    --border: #e2e8f0;
    --border-light: rgba(226, 232, 240, 0.6);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --font-main: 'Outfit', sans-serif;
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.55s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-bounce: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow: 0 4px 12px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
    --shadow-lg: 0 12px 28px rgba(0,0,0,0.1), 0 4px 10px rgba(0,0,0,0.06);
    --shadow-xl: 0 24px 48px rgba(0,0,0,0.14), 0 8px 16px rgba(0,0,0,0.08);
    --shadow-blue: 0 8px 24px rgba(37,99,235,0.3);
    --glass: rgba(255,255,255,0.88);
    --glass-border: rgba(255,255,255,0.5);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-main);
    background: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ── Navbar ── */
.navbar {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    background: var(--glass);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 48px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.15));
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-main);
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--accent); }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-icon {
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
    padding: 0.6rem;
    border-radius: var(--radius-sm);
    width: 38px; height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
}

.nav-icon:hover {
    background: var(--accent-light);
    color: var(--accent);
    transform: translateY(-2px);
}

.cart-icon { position: relative; }

.cart-count {
    position: absolute;
    top: 2px; right: 2px;
    background: var(--accent);
    color: #fff;
    font-size: 0.65rem;
    width: 16px; height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    transform: scale(0);
    transition: var(--transition-bounce);
}

.cart-count.visible { transform: scale(1); }
.cart-count.pulse { transform: scale(1.4); background: var(--success); }

.mobile-menu {
    display: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--text-main);
    padding: 0.5rem;
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.9rem 2rem;
    background: var(--accent);
    color: #fff;
    font-family: var(--font-main);
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover {
    background: var(--accent-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-blue);
}

.btn-outline {
    background: transparent;
    border-color: var(--accent);
    color: var(--accent);
}

.btn-outline:hover {
    background: var(--accent);
    color: #fff;
}

.btn-dark {
    background: var(--primary);
    border-color: var(--primary);
}

.btn-dark:hover {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: var(--shadow-blue);
}

.btn-success {
    background: var(--success);
    border-color: var(--success);
}

.btn-success:hover {
    background: #0da271;
    box-shadow: 0 8px 24px rgba(16,185,129,0.3);
}

/* ── Page header ── */
.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, #1e3a8a 60%, var(--accent) 100%);
    color: #fff;
    padding: 9rem 2rem 5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: -50%; left: -10%;
    width: 50%; height: 200%;
    background: radial-gradient(ellipse, rgba(99,102,241,0.2), transparent 70%);
    pointer-events: none;
}

.page-hero::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 80px;
    background: linear-gradient(to bottom, transparent, var(--bg-light));
}

.page-hero-content { position: relative; z-index: 1; }

.page-hero-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.7);
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 0.35rem 1rem;
    border-radius: 50px;
    margin-bottom: 1.2rem;
    backdrop-filter: blur(8px);
}

.page-hero h1 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.page-hero p {
    font-size: 1rem;
    color: rgba(255,255,255,0.75);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ── Section header ── */
.section-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-light);
    padding: 0.35rem 1rem;
    border-radius: 50px;
    margin-bottom: 0.75rem;
}

/* ── Cards ── */
.card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition-smooth);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(37,99,235,0.2);
}

/* ── Form elements ── */
.form-group { margin-bottom: 1.5rem; }

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-main);
}

.form-group label .required::after { content: ' *'; color: var(--danger); }

.input-wrapper { position: relative; }

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.75rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: var(--font-main);
    background: var(--bg-white);
    color: var(--text-main);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-light);
}

/* ── Alerts ── */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-error   { background: #fee2e2; color: #dc2626; border: 1px solid #fecaca; }
.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-warning { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
.alert-info    { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* ── Quick Cart ── */
.quick-cart {
    position: fixed;
    top: 0; right: -420px;
    width: 400px;
    height: 100vh;
    background: var(--bg-white);
    border-left: 1px solid var(--border);
    box-shadow: var(--shadow-xl);
    transition: var(--transition-smooth);
    z-index: 1001;
    padding: 2rem;
    overflow-y: auto;
}

.quick-cart.active { right: 0; }

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.cart-header h3 { font-weight: 800; font-size: 1.2rem; }

.close-cart {
    background: var(--bg-light);
    border: none;
    font-size: 1rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    width: 36px; height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: var(--transition-bounce);
}

.close-cart:hover {
    background: #fee2e2;
    color: var(--danger);
    transform: rotate(90deg);
}

/* ── Footer ── */
footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.85);
    padding: 4.5rem 2rem 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand img {
    height: 48px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.footer-brand p {
    color: rgba(255,255,255,0.5);
    font-size: 0.875rem;
    margin-top: 1rem;
    line-height: 1.7;
    max-width: 280px;
}

.footer-col h4 {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.4);
    margin-bottom: 1.25rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    font-size: 0.875rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: #fff;
    transform: translateX(4px);
    display: inline-block;
}

.social-links {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.social-link {
    width: 38px; height: 38px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    transition: var(--transition-bounce);
}

.social-link:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: var(--shadow-blue);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.3);
}

/* ── Animations ── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.85); }
    to   { opacity: 1; transform: scale(1); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(24px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .footer-content { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
}

/* ── Mobile nav overlay ── */
.nav-drawer-close { display: none; }

.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10, 15, 30, 0.55);
    backdrop-filter: blur(4px);
    z-index: 999;
}
.nav-overlay.active { display: block; }

@media (max-width: 768px) {
    /* Nav — !important overrides any page-level display:flex on .nav-links */
    .nav-links {
        display: none !important;
        position: fixed;
        top: 0; left: 0;
        width: min(300px, 82vw);
        height: 100vh;
        background: var(--bg-white);
        flex-direction: column !important;
        gap: 0 !important;
        padding: 0;
        z-index: 1000;
        box-shadow: 4px 0 32px rgba(0,0,0,0.15);
        overflow-y: auto;
        transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
        transform: translateX(-100%);
        align-items: stretch !important;
    }

    .nav-links.open {
        display: flex !important;
        transform: translateX(0);
    }

    .nav-links a {
        padding: 1rem 1.5rem !important;
        font-size: 0.95rem !important;
        font-weight: 600 !important;
        border-bottom: 1px solid var(--border) !important;
        color: var(--text-main) !important;
        width: 100% !important;
        /* reset any entry animations from page-level CSS */
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
        letter-spacing: 0.06em;
        text-transform: uppercase;
    }

    .nav-links a:hover {
        background: var(--bg-light) !important;
        color: var(--accent) !important;
    }

    .nav-links a.active { color: var(--accent) !important; }
    .nav-links a::after { display: none !important; }

    /* Close button inside drawer */
    .nav-drawer-close {
        position: sticky;
        top: 0;
        z-index: 10;
        display: flex !important;
        align-items: center;
        justify-content: flex-end;
        padding: 0 1rem;
        height: 60px;
        background: var(--bg-white);
        border: none;
        border-bottom: 1px solid var(--border);
        width: 100%;
        cursor: pointer;
        color: var(--text-muted);
        font-size: 1.2rem;
        flex-shrink: 0;
        transition: color 0.2s;
    }

    .nav-drawer-close:hover { color: var(--accent); }

    .mobile-menu {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px; height: 40px;
        border-radius: var(--radius-sm);
        transition: var(--transition);
        cursor: pointer;
    }
    .mobile-menu:hover { background: var(--bg-light); }

    .nav-actions { gap: 0.25rem; }

    .nav-container { padding: 0.75rem 1rem; }

    .logo img { height: 38px; }

    /* Quick cart */
    .quick-cart { width: 100%; right: -100%; }

    /* Page hero */
    .page-hero { padding: 7rem 1.25rem 4rem; }
    .page-hero h1 { font-size: 1.8rem; }
    .page-hero p { font-size: 0.9rem; }

    /* Buttons */
    .btn { padding: 0.8rem 1.4rem; font-size: 0.82rem; }

    /* Cards */
    .card { padding: 1.25rem; }

    /* Forms */
    .form-group input,
    .form-group select,
    .form-group textarea { font-size: 1rem; padding: 0.875rem 1rem 0.875rem 2.5rem; }

    /* Footer */
    footer { padding: 3rem 1.25rem 1.5rem; }
    .footer-content { grid-template-columns: 1fr; gap: 2rem; }
    .footer-brand img { height: 40px; }
    .footer-bottom { flex-direction: column; gap: 0.4rem; text-align: center; font-size: 0.75rem; }
}

@media (max-width: 480px) {
    .page-hero { padding: 6rem 1rem 3.5rem; }
    .page-hero h1 { font-size: 1.6rem; }

    .nav-container { padding: 0.6rem 1rem; }
    .logo img { height: 34px; }
}