/* E-Commerce Store — Premium UI */
/* Design tokens from design-skill.md */

:root {
    --brand-gray-400: #adb5bd;
    --brand-gray-500: #6c757d;
    --brand-primary: #2a2a3d;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;
}

* { box-sizing: border-box; }

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: #212529;
    background: #fff;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}

.font-heading { font-family: var(--font-heading); }

h1, h2, h3 { font-family: var(--font-heading); font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

a { color: var(--brand-primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: #5a6a78; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0.5rem 1.25rem; border-radius: 8px; font-size: 0.875rem;
    font-weight: 600; line-height: 1.5; cursor: pointer;
    transition: all 0.2s; border: 1px solid transparent;
    text-decoration: none;
}
.btn:active { transform: scale(0.95); }
.btn-primary {
    background: var(--brand-primary); color: #fff; border-color: var(--brand-primary);
}
.btn-primary:hover { background: #1e1e2e; border-color: #1e1e2e; color: #fff; }
.btn-primary:focus { outline: none; box-shadow: 0 0 0 3px rgba(42,42,61,0.3); }

.btn-outline-secondary {
    background: transparent; color: var(--brand-gray-500);
    border-color: var(--brand-gray-500);
}
.btn-outline-secondary:hover { background: var(--brand-gray-500); color: #fff; }

.btn-sm { padding: 0.25rem 0.5rem; font-size: 0.75rem; }
.btn-lg { padding: 0.75rem 2rem; font-size: 1rem; }
.btn-danger { background: #dc3545; color: #fff; border-color: #dc3545; }
.btn-danger:hover { background: #bb2d3b; }

/* Forms */
.form-control {
    display: block; width: 100%; padding: 0.5rem 0.75rem;
    font-size: 0.875rem; line-height: 1.5; color: #212529;
    background: #fff; border: 1px solid var(--brand-gray-400);
    border-radius: 8px; transition: border-color 0.2s, box-shadow 0.2s;
}
.form-control:focus { outline: none; border-color: var(--brand-primary); box-shadow: 0 0 0 3px rgba(42,42,61,0.15); }
.form-control::placeholder { color: var(--brand-gray-400); }
.form-label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.25rem; color: #212529; }

/* Cards */
.card { background: #fff; border-radius: 8px; }
.card.border { border: 1px solid var(--brand-gray-400); }

/* Utility overrides */
.max-w-7xl { max-width: 1280px; }
.max-w-4xl { max-width: 896px; }
.max-w-2xl { max-width: 672px; }
.max-w-md { max-width: 480px; }
.max-w-sm { max-width: 384px; }
.max-w-full { max-width: 100%; }
.max-w-xs { max-width: 320px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

@media (min-width: 640px) {
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .sm\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 1024px) {
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
    .lg\:grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
}

@media (min-width: 640px) {
    .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
    .sm\:gap-2 { gap: 0.5rem; }
    .sm\:gap-3 { gap: 0.75rem; }
    .sm\:gap-4 { gap: 1rem; }
    .sm\:w-16 { width: 4rem; }
    .sm\:w-20 { width: 5rem; }
    .sm\:px-1\.5 { padding-left: 0.375rem; padding-right: 0.375rem; }
    .sm\:text-xs { font-size: 0.75rem; }
    .sm\:text-sm { font-size: 0.875rem; }
    .sm\:text-base { font-size: 1rem; }
    .sm\:text-lg { font-size: 1.125rem; }
    .sm\:text-xl { font-size: 1.25rem; }
    .sm\:text-2xl { font-size: 1.5rem; }
    .sm\:text-3xl { font-size: 1.875rem; }
    .sm\:h-20 { height: 5rem; }
    .sm\:h-36 { height: 9rem; }
    .sm\:h-96 { height: 24rem; }
    .sm\:py-8 { padding-top: 2rem; padding-bottom: 2rem; }
    .sm\:py-12 { padding-top: 3rem; padding-bottom: 3rem; }
    .sm\:mb-4 { margin-bottom: 1rem; }
    .sm\:mb-6 { margin-bottom: 1.5rem; }
    .sm\:p-3 { padding: 0.75rem; }
    .sm\:p-4 { padding: 1rem; }
    .sm\:max-h-96 { max-height: 24rem; }
}

/* Spacing */
.p-2\\.5 { padding: 0.625rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.px-1\\.5 { padding-left: 0.375rem; padding-right: 0.375rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-1\\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.mt-0\\.5 { margin-top: 0.125rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-1\\.5 { margin-top: 0.375rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-16 { margin-top: 4rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mr-2 { margin-right: 0.5rem; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-1 { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }
.mt-auto { margin-top: auto; }
.pt-1 { padding-top: 0.25rem; }
.pt-1\\.5 { padding-top: 0.375rem; }
.pt-2 { padding-top: 0.5rem; }
.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-3 > * + * { margin-top: 0.75rem; }
.space-y-4 > * + * { margin-top: 1rem; }

footer ul { list-style: none; padding: 0; margin: 0; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }

.w-full { width: 100%; }
.password-wrap { position: relative; }
.password-wrap .form-control { padding-right: 2.5rem; }
.password-toggle {
    position: absolute; right: 0.5rem; top: 50%; transform: translateY(-50%);
    background: none; border: none; cursor: pointer; color: #6c757d; padding: 0.25rem;
    font-size: 1rem; line-height: 1;
}
.password-toggle:hover { color: #2a2a3d; }
.alert-toast {
    background: #2a2a3d; color: #fff; padding: 0.75rem 1rem; border-radius: 8px;
    margin-bottom: 1rem; font-size: 0.875rem; display: flex; align-items: center; gap: 0.5rem;
    animation: fadeIn 0.3s ease;
}
@keyframes fadeIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
.w-12 { width: 3rem; }
.w-14 { width: 3.5rem; }
.w-16 { width: 4rem; }
.w-20 { width: 5rem; }
.w-24 { width: 6rem; }
.h-14 { height: 3.5rem; }
.h-16 { height: 4rem; }
.h-20 { height: 5rem; }
.h-28 { height: 7rem; }
.h-32 { height: 8rem; }
.h-36 { height: 9rem; }
.h-48 { height: 12rem; }
.max-h-80 { max-height: 20rem; }
.max-h-96 { max-height: 24rem; }
.max-h-full { max-height: 100%; }
.h-72 { height: 18rem; }
.h-96 { height: 24rem; }

/* Typography helpers */
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.text-6xl { font-size: 3.75rem; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.uppercase { text-transform: uppercase; }
.tracking-wide { letter-spacing: 0.05em; }
.leading-relaxed { line-height: 1.7; }
.line-clamp-1 { display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.text-gray-300 { color: #ced4da; }
.text-gray-400 { color: var(--brand-gray-400); }
.text-gray-500 { color: var(--brand-gray-500); }
.text-gray-900 { color: #212529; }
.bg-gray-50 { background: #f8f9fa; }
.bg-gray-100 { background: #f1f3f5; }

/* Borders */
.border { border: 1px solid var(--brand-gray-400); }
.border-b { border-bottom: 1px solid var(--brand-gray-400); }
.border-t { border-top: 1px solid var(--brand-gray-400); }
.rounded { border-radius: 8px; }
.rounded-lg { border-radius: 8px; }
.overflow-hidden { overflow: hidden; }

/* Shadows */
.shadow-sm { box-shadow: 0 1px 3px rgba(0,0,0,0.08); }
.shadow-lg { box-shadow: 0 4px 12px rgba(0,0,0,0.1); }

/* Aspect ratio */
.aspect-w-1 { position: relative; }
.aspect-h-1 { padding-bottom: 100%; }
.aspect-w-1 > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

/* Object fit */
.object-cover { object-fit: cover; }
.object-contain { object-fit: contain; }

/* Transitions */
.transition-all { transition-property: all; }
.transition-colors { transition-property: color, background-color, border-color; }
.transition-transform { transition-property: transform; }
.duration-200 { transition-duration: 0.2s; }
.duration-300 { transition-duration: 0.3s; }
.hover\:shadow-lg:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
.hover\:-translate-y-1:hover { transform: translateY(-0.25rem); }
.hover\:scale-105:hover { transform: scale(1.05); }
.active\:scale-95:active { transform: scale(0.95); }

/* Focus rings */
button:focus-visible, a:focus-visible, input:focus-visible { outline: 2px solid var(--brand-primary); outline-offset: 2px; }

/* Hover effects for links */
a:hover { color: #5a6a78; }

/* Badges */
.badge { display: inline-block; padding: 0.25em 0.5em; font-size: 0.75rem; font-weight: 600; border-radius: 9999px; }
.text-warning { color: #ffc107; }
.bg-info { background: #17a2b8; color: #fff; }
.bg-success { background: #28a745; color: #fff; }
.bg-warning { background: #ffc107; color: #212529; }
.bg-danger { background: #dc3545; color: #fff; }

/* Responsive nav */
.hidden { display: none; }
.block { display: block; }
.relative { position: relative; }
.absolute { position: absolute; }
.inset-0 { inset: 0; }
.top-full { top: 100%; }
.top-24 { top: 6rem; }
.left-0 { left: 0; }
.right-0 { right: 0; }
.z-50 { z-index: 50; }
.bg-white { background: #fff; }
.sticky { position: sticky; }
.static { position: static; }
.w-40 { width: 10rem; }
.rounded-full { border-radius: 9999px; }
.line-clamp-1 { display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.placeholder-gray-400::placeholder { color: #ced4da; }
.whitespace-nowrap { white-space: nowrap; }
.inline { display: inline; }
.inline-flex { display: inline-flex; }

@media (min-width: 1024px) {
    .lg\:flex-row { flex-direction: row; }
    .lg\:hidden { display: none; }
    .lg\:flex { display: flex; }
    .lg\:relative { position: relative; }
    .lg\:static { position: static; }
    .lg\:w-40 { width: 10rem; }
    .lg\:order-1 { order: 1; }
    .lg\:order-2 { order: 2; }
}

/* Hero section */
.hero { background: linear-gradient(180deg, #f8f9fa 0%, #fff 100%); }