/* ==========================================
   BRIOLETT — Design Concepts Showcase
   Premium presentation page
   ========================================== */

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-dark: #0a0e17;
    --bg-card: #111827;
    --bg-card-alt: #0f1623;
    --accent: #e8732c;
    --accent-glow: rgba(232, 115, 44, 0.3);
    --accent-light: #f59e0b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: rgba(255, 255, 255, 0.06);
    --border-accent: rgba(232, 115, 44, 0.3);
    --glass: rgba(255, 255, 255, 0.03);
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Space Grotesk', var(--font);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

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

/* ---------- INTRO SECTION ---------- */
.intro {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.intro-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(232, 115, 44, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(59, 130, 246, 0.08), transparent),
        radial-gradient(ellipse 40% 30% at 10% 60%, rgba(168, 85, 247, 0.06), transparent);
    z-index: 0;
}

.intro-bg::after {
    content: '';
    position: absolute;
    inset: 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='0.015'%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");
    opacity: 0.5;
}

.intro-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 2rem;
    max-width: 720px;
}

.intro-badge {
    display: inline-block;
    padding: 8px 20px;
    border: 1px solid var(--border-accent);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 2rem;
    background: rgba(232, 115, 44, 0.05);
    backdrop-filter: blur(8px);
}

.intro-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.intro-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 3rem;
}

.intro-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    border-radius: 100px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 0 40px var(--accent-glow);
}

.intro-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px var(--accent-glow);
    background: #d4631f;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {

    0%,
    100% {
        opacity: 0.3;
        transform: scaleY(0.6);
    }

    50% {
        opacity: 1;
        transform: scaleY(1);
    }
}

/* ---------- STICKY NAV ---------- */
.concepts-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 12px 24px;
    transform: translateY(-100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.concepts-nav.visible {
    transform: translateY(0);
}

.nav-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(20px) saturate(1.5);
    border: 1px solid var(--border);
    border-radius: 100px;
}

.nav-logo {
    width: 36px;
    height: 36px;
    background: var(--accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.1rem;
    color: #fff;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    border-radius: 100px;
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: var(--font-display);
    color: var(--text-muted);
    transition: all 0.3s ease;
    letter-spacing: 0.05em;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link.active {
    background: rgba(232, 115, 44, 0.15);
    color: var(--accent);
}

.nav-vote-btn {
    padding: 8px 20px;
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.nav-vote-btn:hover {
    background: #d4631f;
}

/* ---------- CONCEPTS SECTION ---------- */
.concepts {
    padding: 0;
}

.concept {
    min-height: 100vh;
    padding: 80px clamp(24px, 5vw, 80px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    border-bottom: 1px solid var(--border);
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.concept.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.concept--alt {
    background: var(--bg-card-alt);
}

.concept--recommended {
    background: linear-gradient(135deg, rgba(232, 115, 44, 0.05) 0%, transparent 50%);
    border-left: 3px solid var(--accent);
}

/* Recommended badge */
.recommended-badge {
    position: absolute;
    top: 30px;
    right: 40px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    background: var(--accent);
    color: #fff;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    box-shadow: 0 4px 20px var(--accent-glow);
    z-index: 2;
}

/* Concept header */
.concept-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

.concept-number {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 800;
    color: var(--accent);
    opacity: 0.4;
    letter-spacing: -0.02em;
}

.concept-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.concept-tag {
    padding: 4px 14px;
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
}

/* Concept body */
.concept-body {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: clamp(30px, 5vw, 80px);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.concept-body--reverse {
    grid-template-columns: 1.3fr 1fr;
    direction: rtl;
}

.concept-body--reverse>* {
    direction: ltr;
}

/* Concept info */
.concept-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.concept-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 28px;
}

.concept-desc strong {
    color: var(--accent);
}

.concept-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 28px;
}

.concept-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.concept-features li svg {
    color: var(--accent);
    flex-shrink: 0;
    opacity: 0.7;
}

/* Color palette */
.concept-palette {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

.palette-dot {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.2s;
}

.palette-dot:hover {
    transform: scale(1.2);
}

/* Demo button for concept 3 */
.concept-demo-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.concept-demo-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
    background: #d4631f;
}

/* Preview frame */
.concept-preview {
    perspective: 1200px;
}

.preview-frame {
    background: #1a1f2e;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease;
    transform: rotateY(-2deg) rotateX(1deg);
}

.preview-frame:hover {
    transform: rotateY(0) rotateX(0) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.preview-frame--glow {
    border-color: var(--border-accent);
    box-shadow: 0 0 40px var(--accent-glow), 0 10px 40px rgba(0, 0, 0, 0.4);
}

.preview-frame--glow:hover {
    box-shadow: 0 0 60px var(--accent-glow), 0 20px 60px rgba(0, 0, 0, 0.5);
}

.preview-dots {
    display: flex;
    gap: 6px;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.3);
}

.preview-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
}

.preview-dots span:first-child {
    background: #ff5f57;
}

.preview-dots span:nth-child(2) {
    background: #ffbd2e;
}

.preview-dots span:last-child {
    background: #28c840;
}

.preview-frame img {
    width: 100%;
    display: block;
}

/* ---------- COMPARISON TABLE ---------- */
.comparison {
    padding: 100px clamp(24px, 5vw, 80px);
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.comparison.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    letter-spacing: -0.02em;
}

.table-wrapper {
    max-width: 1100px;
    margin: 0 auto;
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.comparison-table th,
.comparison-table td {
    padding: 16px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.comparison-table th {
    background: rgba(255, 255, 255, 0.03);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    position: sticky;
    top: 0;
}

.comparison-table th:first-child,
.comparison-table td:first-child {
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
}

.comparison-table td {
    color: var(--text-secondary);
}

.comparison-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.highlight-col {
    background: rgba(232, 115, 44, 0.06) !important;
    color: var(--text-primary) !important;
    position: relative;
}

.comparison-table th.highlight-col {
    color: var(--accent) !important;
}

.rating {
    color: var(--accent-light);
    letter-spacing: 2px;
    font-size: 0.8rem;
}

.proto-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

.proto-link:hover {
    color: var(--accent-light);
}

/* ---------- VOTE SECTION ---------- */
.vote {
    padding: 100px clamp(24px, 5vw, 80px);
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0d1321 100%);
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.vote.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.vote-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.vote-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.vote-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 48px;
}

.vote-cards {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-bottom: 40px;
}

.vote-card {
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    font-family: var(--font);
    color: var(--text-primary);
}

.vote-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.05);
}

.vote-card.selected {
    border-color: var(--accent);
    background: rgba(232, 115, 44, 0.1);
    box-shadow: 0 0 30px var(--accent-glow);
    transform: translateY(-6px);
}

.vote-card--recommended {
    border-color: var(--border-accent);
}

.vote-card-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 100px;
    white-space: nowrap;
    letter-spacing: 0.03em;
}

.vote-card-number {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent);
    opacity: 0.5;
    margin-bottom: 8px;
}

.vote-card-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.vote-card.selected .vote-card-number {
    opacity: 1;
}

.vote-card.selected .vote-card-name {
    color: var(--text-primary);
}

/* Vote result */
.vote-result {
    text-align: center;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.5s ease;
    pointer-events: none;
}

.vote-result.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.result-checkmark {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 0 30px var(--accent-glow);
    animation: checkPop 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes checkPop {
    0% {
        transform: scale(0);
    }

    100% {
        transform: scale(1);
    }
}

.result-text {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.result-text strong {
    color: var(--accent);
}

.result-sub {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ---------- FOOTER ---------- */
.showcase-footer {
    padding: 40px clamp(24px, 5vw, 80px);
    border-top: 1px solid var(--border);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
}

.footer-note {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {

    .concept-body,
    .concept-body--reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }

    .concept-body--reverse>* {
        direction: ltr;
    }

    .concept-preview {
        order: -1;
    }

    .preview-frame {
        transform: none;
    }

    .vote-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .concept {
        min-height: auto;
        padding: 60px 20px;
    }

    .recommended-badge {
        position: relative;
        top: 0;
        right: 0;
        display: inline-flex;
        margin-bottom: 16px;
    }

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

    .nav-links {
        gap: 0;
    }

    .nav-link {
        padding: 8px 10px;
        font-size: 0.7rem;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .comparison-table {
        font-size: 0.75rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 10px 8px;
    }
}

@media (max-width: 480px) {
    .intro-title {
        font-size: 2.5rem;
    }

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

    .nav-vote-btn {
        display: none;
    }
}