:root {
    --bg: #0b0d10;
    --panel: #111318;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --accent: #e5e7eb;
    --border: #1f2933;
}
* { 
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
                Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    letter-spacing: -0.01em;
    line-height: 1.5;
    overflow-x: hidden;
}

/* Ambient background */
.ambient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}
.ambient::before {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(229,231,235,0.03) 0%, transparent 70%);
    animation: ambientPulse 8s ease-in-out infinite;
}
@keyframes ambientPulse {
    0%, 100% { opacity: 0.5; transform: translateX(-50%) scale(1); }
    50% { opacity: 1; transform: translateX(-50%) scale(1.15); }
}

/* Initial fade in for first section */
.initial-fade {
    opacity: 0;
    transform: translateY(16px);
    animation: fadeUp 0.7s ease-out forwards;
}
.initial-fade:nth-child(1) { animation-delay: 0.1s; }
.initial-fade:nth-child(2) { animation-delay: 0.2s; }
.initial-fade:nth-child(3) { animation-delay: 0.3s; }

@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}

/* Scroll-based animation */
.scroll-fade {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.scroll-fade.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 24px 48px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(11,13,16,0.8);
    backdrop-filter: blur(12px);
    z-index: 100;
    border-bottom: 1px solid rgba(31,41,51,0.5);
}
header .logo {
    font-weight: 700;
    letter-spacing: 0.2em;
    font-size: 22px;
    color: var(--text);
}

/* Container */
.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 960px;
    padding: 0 48px;
    margin: 0 auto;
}

/* Status indicator */
.status-bar {
    margin-top: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #4ade80;
    animation: dotPulse 2s ease-in-out infinite;
}
@keyframes dotPulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.4); }
    50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(74, 222, 128, 0); }
}
.status-text {
    font-size: 13px;
    color: var(--muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* Section */
.section {
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 40px 0;
}

.section:first-of-type {
    margin-top: 100px;
}

.section-number {
    font-size: 24px;
    color: var(--muted);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    margin-bottom: 48px;
    display: block;
}

.section h1 {
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 32px;
}

.section p {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--muted);
    line-height: 1.7;
    max-width: 720px;
    margin: 0 auto;
}

/* Divider */
.divider {
    width: 48px;
    height: 1px;
    background: var(--border);
    margin: 20px auto;
}

/* Progress section */
.progress-section {
    width: 100%;
    max-width: 720px;
    margin: 0px auto 80px;
    padding: 40px 48px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
}
.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.progress-label {
    font-size: 13px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.progress-value {
    font-size: 14px;
    font-weight: 500;
}
.progress-track {
    width: 100%;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}
.progress-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--text), rgba(229,231,235,0.6));
    border-radius: 2px;
    transition: width 2s ease-out;
    position: absolute;
    top: 0;
    left: 0;
}
.progress-fill.animate {
    width: 25%;
}
.progress-details {
    display: flex;
    justify-content: space-between;
    margin-top: 16px;
    font-size: 12px;
    color: var(--muted);
}

/* Footer */
footer {
    padding: 80px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 18px;
}
.footer-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
}
.footer-brand {
    font-size: 18px;
    letter-spacing: 0.05em;
}
.footer-brand .registered {
    font-size: 10px;
    vertical-align: baseline;
    margin-left: 2px;
    position: relative;
    top: -5px;
}
footer a {
    color: var(--muted);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 18px;
}
footer a:hover {
    color: var(--text);
}

/* Responsive */
@media (max-width: 768px) {
    header {
        padding: 20px 24px;
    }
    header .logo {
        font-size: 18px;
    }
    .container {
        padding: 0 24px;
    }
    .status-bar {
        margin-top: 100px;
    }
    .section {
        min-height: 70vh;
        padding: 40px 0;
    }
    .progress-section {
        padding: 32px 24px;
    }
    footer {
        padding: 40px 24px;
    }
    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
    footer {
        font-size: 14px;
    }
    .footer-brand {
        font-size: 14px;
    }
    .footer-brand .registered {
        font-size: 8px;
        top: -4px;
    }
    footer a {
        font-size: 14px;
    }
}