/* R-bt Official - Premium Digital Identity System */
:root {
    --rbt-bg: #040406;
    --rbt-primary: #b3a0ff;
    --rbt-secondary: #7df9ff;
    --rbt-accent: #ffffff;
    --rbt-surface: #0a0a0c;
    --rbt-glass: rgba(10, 10, 12, 0.75);
    --rbt-border: rgba(179, 160, 255, 0.15);
    --rbt-glow: rgba(125, 249, 255, 0.25);
    --rbt-text: #eaeaec;
    --rbt-text-muted: rgba(234, 234, 236, 0.6);
    --font-main: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --transition-premium: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;700&display=swap');

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

body {
    font-family: var(--font-main);
    background-color: var(--rbt-bg);
    color: var(--rbt-text);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Premium Animated Background */
.rbt-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at 50% 50%, #08080a 0%, #040406 100%);
}

.rbt-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(179, 160, 255, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(125, 249, 255, 0.05) 0%, transparent 40%);
    pointer-events: none;
}

/* Floating Elements */
.rbt-glow-field {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--rbt-glow) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: floatingGlow 15s infinite alternate ease-in-out;
    pointer-events: none;
    z-index: -1;
}

@keyframes floatingGlow {
    0% { transform: translate(-10%, -10%) scale(1); }
    100% { transform: translate(10%, 10%) scale(1.2); }
}

/* Premium Card */
.rbt-card {
    background: var(--rbt-glass);
    border: 1px solid var(--rbt-border);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-radius: 32px;
    padding: 4rem;
    box-shadow: 0 40px 100px -20px rgba(0, 0, 0, 0.8),
                0 0 50px rgba(179, 160, 255, 0.02);
    position: relative;
    overflow: hidden;
}

.rbt-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg at 50% 50%, transparent, rgba(125, 249, 255, 0.05), transparent 40%);
    animation: cardRotate 10s linear infinite;
    pointer-events: none;
}

@keyframes cardRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Buttons */
.btn-rbt {
    background: linear-gradient(135deg, var(--rbt-primary), #d4caff);
    color: #040406;
    padding: 1.1rem 2.5rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: var(--transition-premium);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 30px rgba(179, 160, 255, 0.3);
}

.btn-rbt:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 20px 50px rgba(179, 160, 255, 0.5);
    background: white;
}

/* Inputs */
.input-rbt {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(179, 160, 255, 0.1);
    color: #fff;
    border-radius: 16px;
    padding: 1.2rem 1.8rem;
    width: 100%;
    font-size: 1rem;
    transition: var(--transition-premium);
}

.input-rbt:focus {
    border-color: var(--rbt-secondary);
    background: rgba(125, 249, 255, 0.05);
    outline: none;
    box-shadow: 0 0 0 4px rgba(125, 249, 255, 0.1);
}

/* Typography Extensions */
.gradient-text {
    background: linear-gradient(135deg, #fff 30%, var(--rbt-primary), var(--rbt-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.tag-premium {
    display: inline-flex;
    padding: 6px 16px;
    border: 1px solid var(--rbt-border);
    border-radius: 100px;
    font-size: 0.7rem;
    font-family: var(--font-mono);
    color: var(--rbt-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
}

/* Footer & Links */
.links-rbt {
    color: var(--rbt-text-muted);
    text-decoration: none;
    transition: var(--transition-premium);
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.links-rbt:hover {
    color: var(--rbt-primary);
    letter-spacing: 2px;
}

/* Responsive */
@media (max-width: 768px) {
    .rbt-card {
        padding: 2.5rem 1.5rem;
    }
}