/* ============================================
   CSS Design System — Under Construction Page
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
    --color-bg: #0a0a0f;
    --color-bg-subtle: #12121a;
    --color-surface: rgba(255, 255, 255, 0.04);
    --color-surface-hover: rgba(255, 255, 255, 0.07);
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    --color-text: #f0f0f5;
    --color-text-secondary: #8a8a9a;
    --color-text-muted: #55556a;
    --color-accent-1: #6c5ce7;
    --color-accent-2: #a29bfe;
    --color-accent-3: #00cec9;
    --color-gradient-start: #6c5ce7;
    --color-gradient-end: #00cec9;
    --color-badge-bg: rgba(108, 92, 231, 0.12);
    --color-badge-border: rgba(108, 92, 231, 0.3);
    --color-badge-dot: #6c5ce7;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-card: 0 8px 40px rgba(0, 0, 0, 0.4), 0 0 80px rgba(108, 92, 231, 0.06);
    --shadow-glow: 0 0 60px rgba(108, 92, 231, 0.15);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

/* ---------- Background Particles ---------- */
.bg-particles {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: var(--color-accent-1);
    opacity: 0;
    animation: particleFloat 12s infinite ease-in-out;
}

.particle:nth-child(1) { width: 4px; height: 4px; top: 15%; left: 10%; animation-delay: 0s; animation-duration: 14s; }
.particle:nth-child(2) { width: 6px; height: 6px; top: 25%; left: 80%; animation-delay: 2s; animation-duration: 12s; background: var(--color-accent-3); }
.particle:nth-child(3) { width: 3px; height: 3px; top: 60%; left: 20%; animation-delay: 4s; animation-duration: 16s; }
.particle:nth-child(4) { width: 5px; height: 5px; top: 70%; left: 70%; animation-delay: 1s; animation-duration: 11s; background: var(--color-accent-2); }
.particle:nth-child(5) { width: 4px; height: 4px; top: 40%; left: 50%; animation-delay: 6s; animation-duration: 13s; background: var(--color-accent-3); }
.particle:nth-child(6) { width: 3px; height: 3px; top: 85%; left: 35%; animation-delay: 3s; animation-duration: 15s; }
.particle:nth-child(7) { width: 5px; height: 5px; top: 10%; left: 60%; animation-delay: 5s; animation-duration: 10s; background: var(--color-accent-2); }
.particle:nth-child(8) { width: 4px; height: 4px; top: 50%; left: 90%; animation-delay: 7s; animation-duration: 14s; background: var(--color-accent-3); }

@keyframes particleFloat {
    0%, 100% {
        opacity: 0;
        transform: translateY(0) scale(1);
    }
    20% {
        opacity: 0.6;
    }
    50% {
        opacity: 0.3;
        transform: translateY(-60px) scale(1.5);
    }
    80% {
        opacity: 0.5;
    }
}

/* ---------- Container ---------- */
.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 560px;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- Badge ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: var(--color-badge-bg);
    border: 1px solid var(--color-badge-border);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-accent-2);
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.1s both;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-badge-dot);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(108, 92, 231, 0.5);
    }
    50% {
        opacity: 0.7;
        box-shadow: 0 0 0 8px rgba(108, 92, 231, 0);
    }
}

/* ---------- Hero Section ---------- */
.hero {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.hero-icon {
    color: var(--color-accent-2);
    opacity: 0.7;
    margin-bottom: 0.5rem;
    animation: gentleBounce 3s ease-in-out infinite;
}

@keyframes gentleBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.hero-title {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.03em;
    color: var(--color-text);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-accent-2), var(--color-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: gradientShift 4s ease-in-out infinite alternate;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 420px;
    font-weight: 400;
}

/* ---------- Contact Card ---------- */
.contact-card {
    width: 100%;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.35s both;
    transition: box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}

.contact-card:hover {
    box-shadow: var(--shadow-card), var(--shadow-glow);
    border-color: var(--color-border-hover);
}

.contact-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 1.5rem 1.75rem;
    border-bottom: 1px solid var(--color-border);
}

.contact-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--color-accent-1), var(--color-accent-3));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.contact-title {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.contact-body {
    padding: 1.5rem 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* ---------- Person Info ---------- */
.contact-person {
    display: flex;
    align-items: center;
    gap: 14px;
}

.avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent-1), var(--color-accent-3));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    color: white;
    flex-shrink: 0;
    letter-spacing: 0.02em;
}

.person-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.person-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text);
}

.person-role {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* ---------- Contact Details ---------- */
.contact-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.contact-item:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-border-hover);
    transform: translateX(4px);
}

.contact-item-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background: rgba(108, 92, 231, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-2);
    flex-shrink: 0;
    transition: background var(--transition-fast);
}

.contact-item:hover .contact-item-icon {
    background: rgba(108, 92, 231, 0.18);
}

.contact-item-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 0;
}

.contact-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
}

.contact-value {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.contact-arrow {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    flex-shrink: 0;
    transition: all var(--transition-fast);
    opacity: 0;
    transform: translateX(-6px);
}

.contact-item:hover .contact-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* ---------- Footer ---------- */
.footer {
    text-align: center;
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.5s both;
}

.footer p {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    font-weight: 400;
}

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
    .container {
        padding: 1.5rem 1rem;
        gap: 2rem;
    }

    .hero-title {
        font-size: 1.65rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .contact-card-header {
        padding: 1.25rem 1.25rem;
    }

    .contact-body {
        padding: 1.25rem;
    }

    .contact-item {
        padding: 12px 14px;
    }

    .hero-icon svg {
        width: 48px;
        height: 48px;
    }
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 2.6rem;
    }
}