/* =============================================
   Isarloom -- "Stitch & Story" Design System
   Warm, handcrafted aesthetic for quilters
   ============================================= */

:root {
    /* -- Brand Colors -- */
    --primary: #8B5E3C;
    --primary-light: #A67B5B;
    --primary-dark: #6B4226;
    --accent: #C75B39;
    --accent-light: #E8896B;
    --accent-dark: #A3432A;
    --secondary: #5B7F63;
    --secondary-light: #7FA688;
    --secondary-container: #D4E8D9;

    /* -- Neutrals -- */
    --bg: #FBF7F2;
    --bg-card: #FFFEFB;
    --surface: #FBF7F2;
    --surface-container: #F0EBE3;
    --surface-container-low: #F5F1EB;
    --surface-container-high: #E8E2DA;
    --surface-container-highest: #DDD7CF;

    /* -- Text -- */
    --text: #2D2219;
    --text-light: #5A4E42;
    --text-muted: #8A7E72;
    --outline: #8A7E72;
    --outline-variant: #C9C0B5;

    /* -- Semantic -- */
    --warning: #D4A843;
    --danger: #BA1A1A;
    --error-container: #FFDAD6;
    --info: #4A7B8A;
    --info-container: #D0E8EF;

    /* -- Shadows -- */
    --border: transparent;
    --shadow: 0 4px 20px rgba(45, 34, 25, 0.06);
    --shadow-hover: 0 12px 32px rgba(139, 94, 60, 0.12);
    --shadow-soft: 0 2px 8px rgba(45, 34, 25, 0.04);

    /* -- Radii -- */
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* -- Typography -- */
    --font: 'DM Sans', 'Manrope', -apple-system, sans-serif;
    --font-display: 'Fraunces', 'Georgia', serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main { flex: 1; }

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* --- Navbar --- */
.navbar {
    background: rgba(251, 247, 242, 0.85);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(201, 192, 181, 0.3);
}
.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    gap: 24px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--text);
    text-decoration: none;
    line-height: 1;
}
.logo-stack {
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    line-height: 1;
}
.logo-text {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--text);
    line-height: 1;
}
.logo-tagline {
    font-family: var(--font);
    font-weight: 500;
    font-size: 0.7rem;
    color: var(--text-muted, #667085);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    line-height: 1;
}
.logo-img {
    height: 36px;
    width: 36px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}
.nav-links {
    display: flex;
    gap: 4px;
    flex: 1;
}
.nav-link {
    padding: 8px 16px;
    border-radius: var(--radius);
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}
.nav-link:hover { background: var(--surface-container-low); color: var(--text); }
.nav-cta {
    background: var(--accent);
    color: white !important;
    border-radius: var(--radius);
}
.nav-cta:hover { background: var(--accent-dark); color: white !important; }
.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nav-xp { display: flex; gap: 6px; }
.xp-badge {
    background: var(--surface-container);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    font-family: var(--font);
    letter-spacing: 0.02em;
}
.level-badge {
    background: var(--primary);
    color: white;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font);
}
.nav-dropdown { position: relative; }
.nav-user-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface-container-low);
    border: 1px solid var(--outline-variant);
    padding: 6px 12px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.9rem;
    font-family: var(--font);
    color: var(--text);
    transition: all 0.2s;
}
.nav-user-btn:hover { background: var(--surface-container); }
.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
}
.dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    background: var(--bg-card);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    min-width: 200px;
    overflow: hidden;
}
.nav-dropdown.open .dropdown-menu { display: block; }
.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--text);
    font-size: 0.9rem;
}
.dropdown-menu a:hover { background: var(--surface-container-low); }
.dropdown-menu hr { border: none; height: 1px; background: var(--surface-container-high); }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-dark); color: white; transform: translateY(-1px); box-shadow: var(--shadow-hover); }
.btn-secondary { background: var(--surface-container-high); color: var(--text); }
.btn-secondary:hover { background: var(--surface-container-highest); color: var(--text); }
.btn-outline { background: var(--bg-card); border: 1px solid var(--outline-variant); color: var(--text); }
.btn-outline:hover { background: var(--surface-container-low); color: var(--primary); border-color: var(--primary-light); }
.btn-accent { background: var(--secondary); color: white; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; justify-content: center; }

/* --- Flash messages --- */
.flash-container { max-width: 1280px; margin: 16px auto; padding: 0 24px; }
.flash {
    padding: 12px 20px;
    border-radius: var(--radius);
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    animation: slideDown 0.3s ease;
}
@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
.flash-success { background: var(--secondary-container); color: #23501e; border-left: 4px solid var(--secondary); }
.flash-error { background: var(--error-container); color: #93000a; border-left: 4px solid var(--danger); }
.flash-info { background: var(--info-container); color: #002021; border-left: 4px solid var(--info); }
.flash-close { background: none; border: none; font-size: 1.2rem; cursor: pointer; opacity: 0.6; }

/* --- Cards / Grid --- */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section { padding: 48px 0; }
.section-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    margin-bottom: 8px;
    color: var(--text);
}
.section-subtitle { color: var(--text-light); margin-bottom: 32px; }

.pattern-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}
.pattern-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s;
    position: relative;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(201, 192, 181, 0.25);
}
.pattern-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(139, 94, 60, 0.15);
}
.card-cover {
    height: 200px;
    background: var(--surface-container-low);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}
.card-cover img { width: 100%; height: 100%; object-fit: cover; }
.card-cover svg { max-width: 90%; max-height: 90%; }
.card-cover .placeholder-icon { font-size: 3rem; opacity: 0.3; }
.card-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--primary);
    color: white;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
}
.card-badge.free { background: var(--secondary); }
.card-body { padding: 16px; }
.card-title {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-meta {
    display: flex;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 8px;
}
.card-meta span { display: flex; align-items: center; gap: 4px; }
.card-stats {
    display: flex;
    justify-content: space-between;
    padding-top: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.card-stats span { display: flex; align-items: center; gap: 4px; }
.difficulty-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}
.difficulty-beginner { background: var(--secondary-container); color: #23501e; }
.difficulty-intermediate { background: #FFF0D4; color: #7A5C1F; }
.difficulty-advanced { background: var(--error-container); color: #93000a; }
.difficulty-expert { background: #E8D5F5; color: #5B2D8E; }

/* --- Hero --- */
.hero {
    background: var(--primary-dark);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-content { position: relative; z-index: 1; }
.hero h1 {
    font-family: var(--font-display);
    font-size: 3.5rem;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    font-weight: 600;
}
.hero p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 48px;
}
.hero-stat {
    text-align: center;
}
.hero-stat .number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
}
.hero-stat .label {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* --- Forms --- */
.form-group { margin-bottom: 20px; }
.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.8rem;
    margin-bottom: 6px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: none;
    border-bottom: 2px solid var(--outline-variant);
    border-radius: 0;
    font-family: var(--font);
    font-size: 0.95rem;
    transition: border-color 0.2s;
    background: transparent;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-bottom-color: var(--primary);
    box-shadow: none;
}
.form-textarea { resize: vertical; min-height: 100px; }

.auth-container {
    max-width: 440px;
    margin: 60px auto;
    padding: 0 24px;
}
.auth-card {
    background: var(--bg-card);
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 1px solid rgba(201, 192, 181, 0.25);
}
.auth-card h1 {
    font-family: var(--font-display);
    text-align: center;
    margin-bottom: 8px;
}
.auth-card .subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 32px;
}

/* --- Pattern Detail --- */
.pattern-hero {
    background: var(--bg-card);
    padding: 32px 0;
}
.pattern-layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 40px;
    align-items: start;
}
.pattern-preview {
    background: var(--bg);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}
.pattern-info h1 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    margin-bottom: 12px;
}
.pattern-creator {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: var(--text-light);
}
.pattern-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-score { background: var(--secondary-container); color: #155724; }
.badge-pieces { background: var(--info-container); color: #0C5460; }
.badge-remix { background: #E8D5F5; color: #5B2D8E; }
.pattern-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 24px;
}

/* --- Sewability Score --- */
.score-meter {
    width: 100%;
    height: 8px;
    background: var(--surface-container);
    border-radius: 4px;
    overflow: hidden;
    margin: 8px 0;
}
.score-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}
.score-high { background: var(--secondary); }
.score-mid { background: var(--warning); }
.score-low { background: var(--danger); }

/* --- Footer --- */
.footer {
    background: var(--surface);
    color: var(--text);
    padding: 24px 0;
    margin-top: 48px;
    border-top: 1px solid rgba(201, 192, 181, 0.3);
}
.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}
.footer-brand {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-tagline { display: block; font-size: 0.8rem; opacity: 0.6; font-weight: 400; margin-top: 4px; }
.footer-links { display: flex; gap: 28px; }
.footer-links a { color: var(--text-muted); font-size: 0.9rem; font-weight: 500; }
.footer-links a:hover { color: var(--primary); }
.footer-copy { font-size: 0.82rem; color: var(--text-muted); }

/* --- Blog --- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}
.blog-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(201, 192, 181, 0.25);
}
.blog-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.blog-card-body { padding: 20px; }
.blog-card-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
.blog-card-body .excerpt { color: var(--text-light); font-size: 0.9rem; margin-bottom: 12px; }
.blog-card-body .date { font-size: 0.8rem; color: var(--text-muted); }

/* --- Upload area --- */
.upload-area {
    border: 3px dashed var(--outline-variant);
    border-radius: var(--radius-xl);
    padding: 60px 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background: var(--surface-container-low);
}
.upload-area:hover, .upload-area.dragover {
    border-color: var(--primary);
    background: rgba(139, 94, 60, 0.03);
}
.upload-area .icon { font-size: 3rem; color: var(--text-muted); margin-bottom: 16px; }
.upload-area h3 { margin-bottom: 8px; }
.upload-area p { color: var(--text-light); font-size: 0.9rem; }

/* --- Create start page --- */
.create-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 960px;
    margin: 0 auto;
}
.create-option {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s;
    display: block;
    color: var(--text);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(201, 192, 181, 0.25);
}
.create-option:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    color: var(--text);
    border-color: rgba(139, 94, 60, 0.2);
}
.create-option .option-icon { font-size: 2.5rem; margin-bottom: 16px; }
.create-option h3 { font-family: var(--font-display); margin-bottom: 8px; }
.create-option p { color: var(--text-light); font-size: 0.9rem; }

/* --- Filter bar --- */
.filter-bar {
    background: var(--surface-container-low);
    padding: 16px 0;
    position: sticky;
    top: 64px;
    z-index: 50;
}
.filter-row {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}
.filter-row .form-input { max-width: 300px; }
.filter-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--outline-variant);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--bg-card);
    color: var(--text-light);
    text-decoration: none;
    font-family: var(--font);
}
.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip.active { background: var(--primary); color: white; border-color: var(--primary); }

/* --- Hamburger Menu --- */
.nav-hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    padding: 8px;
    color: var(--text);
    line-height: 1;
}

.nav-mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    z-index: 200;
    flex-direction: column;
    padding: 20px;
    overflow-y: auto;
}

.nav-mobile-menu.open {
    display: flex;
}

.nav-mobile-menu .mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.nav-mobile-menu .mobile-close {
    background: none;
    border: none;
    font-size: 1.6rem;
    cursor: pointer;
    color: var(--text);
    padding: 8px;
}

.nav-mobile-menu .mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: var(--radius);
    color: var(--text);
    font-size: 1.05rem;
    font-weight: 500;
    transition: background 0.2s;
}

.nav-mobile-menu .mobile-nav-link:hover {
    background: var(--surface-container-low);
}

.nav-mobile-menu .mobile-nav-divider {
    height: 1px;
    background: var(--surface-container-high);
    margin: 12px 0;
}

/* --- Responsive --- */

/* Tablet */
@media (max-width: 1024px) {
    .pattern-layout { grid-template-columns: 1fr; }
    .blog-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
}

/* Mobile */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-xp { display: none; }
    .nav-dropdown { display: none; }
    .nav-hamburger { display: block; }
    .nav-container { padding: 0 16px; height: 56px; }
    .logo-text { font-size: 1.1rem; }
    .logo-tagline { font-size: 0.62rem; letter-spacing: 0.05em; }

    .hero { padding: 48px 0; }
    .hero h1 { font-size: 1.75rem; }
    .hero p { font-size: 1rem; margin-bottom: 24px; }
    .hero-stats { gap: 20px; flex-wrap: wrap; justify-content: center; }
    .hero-stat .number { font-size: 1.5rem; }

    .container { padding: 0 16px; }
    .section { padding: 32px 0; }
    .section-title { font-size: 1.35rem; }

    .pattern-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
    .card-cover { height: 140px; }
    .card-body { padding: 12px; }
    .card-title { font-size: 0.9rem; }

    .blog-grid { grid-template-columns: 1fr; gap: 16px; }

    .create-options { grid-template-columns: 1fr; gap: 16px; }
    .create-option { padding: 24px 20px; }

    .auth-container { margin: 32px auto; }
    .auth-card { padding: 24px; }

    .filter-bar { top: 56px; }
    .filter-row { gap: 8px; }
    .filter-row .form-input { max-width: 100%; flex: 1; }

    .footer { margin-top: 32px; }
    .footer-container { flex-direction: column; text-align: center; gap: 12px; }
    .footer-links { justify-content: center; }

    .upload-area { padding: 32px 20px; }

    .flash-container { padding: 0 16px; }
}

/* Small phones */
@media (max-width: 400px) {
    .hero h1 { font-size: 1.4rem; }
    .hero p { font-size: 0.9rem; }
    .pattern-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .card-cover { height: 120px; }
    .btn-lg { padding: 12px 20px; font-size: 0.9rem; }
}