/* Landing Page Styles */
body,
html {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
}

.bg-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.overlay-content {
    text-align: center;
}

.enter-btn {
    display: inline-block;
    text-decoration: none;
    padding: 1em 2em;
    font-size: 1.2em;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.enter-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.enter-btn:active {
    transform: translateY(-1px);
}

/* Button Group Layout */
.button-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

/* Administrator Button - Premium Gold/Amber */
.btn-admin {
    background: linear-gradient(135deg, #f59e0b, #d97706, #b45309);
    color: white;
    border: 2px solid #fbbf24;
    padding: 1.1em 2.2em;
    font-size: 1.1em;
    position: relative;
    overflow: hidden;
}

.btn-admin::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-admin:hover::before {
    left: 100%;
}

.btn-admin:hover {
    background: linear-gradient(135deg, #fbbf24, #f59e0b, #d97706);
    border-color: #fcd34d;
    box-shadow: 0 10px 30px rgba(251, 191, 36, 0.4);
}

/* User Button - Premium Blue/Cyan */
.btn-user {
    background: linear-gradient(135deg, #3b82f6, #2563eb, #1d4ed8);
    color: white;
    border: 2px solid #60a5fa;
    padding: 1.1em 2.2em;
    font-size: 1.1em;
    position: relative;
    overflow: hidden;
}

.btn-user::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-user:hover::before {
    left: 100%;
}

.btn-user:hover {
    background: linear-gradient(135deg, #60a5fa, #3b82f6, #2563eb);
    border-color: #93c5fd;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
}

/* Pulse Animation for Attention */
@keyframes pulse-glow {

    0%,
    100% {
        box-shadow: 0 0 5px rgba(59, 130, 246, 0.5);
    }

    50% {
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.8), 0 0 30px rgba(59, 130, 246, 0.4);
    }
}

.btn-user {
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-gold {

    0%,
    100% {
        box-shadow: 0 0 5px rgba(251, 191, 36, 0.5);
    }

    50% {
        box-shadow: 0 0 20px rgba(251, 191, 36, 0.8), 0 0 30px rgba(251, 191, 36, 0.4);
    }
}

.btn-admin {
    animation: pulse-gold 2s ease-in-out infinite;
}

/* AXI Button - Purple/Pink Gradient */
.btn-axi {
    background: linear-gradient(135deg, #8b5cf6, #a855f7, #ec4899);
    border: 2px solid #a855f7;
    font-size: 1.3em;
    padding: 1.2em 2.5em;
    color: white;
}

.btn-axi:hover {
    background: linear-gradient(135deg, #a855f7, #c026d3, #f472b6);
    box-shadow: 0 10px 30px rgba(168, 85, 247, 0.5);
}

/* Classic Demo Button - Softer Blue */
.btn-classic {
    background: rgba(59, 130, 246, 0.85);
    font-size: 0.95em;
    color: white;
}

.btn-classic:hover {
    background: rgba(59, 130, 246, 1);
}

/* Enhanced Button (if used) */
.btn-enhanced {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border: 2px solid #3b82f6;
    color: white;
}

/* Text animation for landing page */
@keyframes fadeInOut {

    0%,
    20%,
    100% {
        opacity: 0;
    }

    40%,
    60% {
        opacity: 1;
    }
}

.overlay-text {
    color: white;
    font-family: 'Poppins', sans-serif;
    font-size: 5rem;
    font-weight: 700;
    text-transform: uppercase;
    animation: fadeInOut 5s ease-in-out infinite;
    margin-bottom: 1rem;
}

.info-overlay {
    background: transparent;
    padding: 1rem 0;
    margin-top: 2rem;
    font-family: 'Poppins', sans-serif;
    color: #000;
    max-width: 900px;
    text-align: center;
    position: relative;
}

.slides-container {
    position: relative;
    width: 100%;
    height: 4rem;
}

.slide {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 1s ease-in-out;
    font-size: 2rem;
    padding: 0 1rem;
    box-sizing: border-box;
    color: #000;
}

.slide.active {
    opacity: 1;
}

.info-overlay h2,
.info-overlay h3 {
    margin: 0.5rem 0;
}

.info-overlay ul {
    list-style: disc;
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.info-overlay strong {
    color: #fff;
}

/* Integration Section */
.integration-section {
    text-align: center;
    margin: 2rem 0;
}

.integration-text {
    font-size: 2rem;
    font-weight: bold;
    color: #fff;
    text-shadow: 0 0 5px #000;
}

/* SoundCloud Widgets */
.sc-widget-hidden {
    position: fixed;
    bottom: 0;
    right: 0;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    z-index: -1;
}

.sc-control-panel {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 1000;
    display: flex;
    align-items: center;
}

.sc-btn {
    background: linear-gradient(135deg, #10b981, #059669, #047857);
    color: white;
    border: 2px solid #34d399;
    border-radius: 8px;
    padding: 0.6rem 1.2rem;
    font-size: 1rem;
    font-weight: 600;
    margin-right: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.sc-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.sc-btn:hover::before {
    left: 100%;
}

.sc-btn:hover {
    background: linear-gradient(135deg, #34d399, #10b981, #059669);
    border-color: #6ee7b7;
    box-shadow: 0 5px 20px rgba(16, 185, 129, 0.4);
    transform: translateY(-2px);
}

.sc-btn:active {
    transform: translateY(0);
}

.sc-btn:disabled {
    background: rgba(75, 85, 99, 0.6);
    border-color: rgba(107, 114, 128, 0.5);
    cursor: not-allowed;
    animation: none;
}

.sc-btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

.sc-btn:disabled::before {
    display: none;
}

/* Pause button variation - Red/Pink */
#sc-pause {
    background: linear-gradient(135deg, #ef4444, #dc2626, #b91c1c);
    border-color: #f87171;
}

#sc-pause:hover {
    background: linear-gradient(135deg, #f87171, #ef4444, #dc2626);
    border-color: #fca5a5;
    box-shadow: 0 5px 20px rgba(239, 68, 68, 0.4);
}

.sc-desc {
    color: #fff;
    font-weight: bold;
    font-size: 1.4rem;
    max-width: 600px;
    line-height: 1.3;
}
/* Additional styles moved from inline */
.sc-desc-styled {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    letter-spacing: 0.01em;
    opacity: 0.9;
}

/* Animated Biometric Scanning Background for HF Spaces */
.bio-scanning-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, #0b1329 0%, #030712 100%);
    overflow: hidden;
    z-index: -1;
}

.scan-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.8), transparent);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.9), 0 0 30px rgba(59, 130, 246, 0.4);
    animation: scan 8s ease-in-out infinite;
}

@keyframes scan {
    0% { top: 0%; }
    50% { top: 100%; }
    100% { top: 0%; }
}

.mesh-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(rgba(59, 130, 246, 0.15) 1px, transparent 0), 
        radial-gradient(rgba(59, 130, 246, 0.08) 2px, transparent 0);
    background-size: 50px 50px, 100px 100px;
    opacity: 0.7;
    animation: gridPulse 6s ease-in-out infinite;
}

@keyframes gridPulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

/* Floating Biometric Nodes / Particles */
.particle {
    position: absolute;
    border-radius: 50%;
    background: rgba(96, 165, 250, 0.6);
    box-shadow: 0 0 12px rgba(96, 165, 250, 0.8), 0 0 20px rgba(96, 165, 250, 0.4);
}

.p1 { width: 8px; height: 8px; left: 15%; top: 25%; animation: float1 12s ease-in-out infinite; }
.p2 { width: 5px; height: 5px; left: 75%; top: 15%; animation: float2 14s ease-in-out infinite; }
.p3 { width: 10px; height: 10px; left: 30%; top: 75%; animation: float3 16s ease-in-out infinite; }
.p4 { width: 6px; height: 6px; left: 80%; top: 65%; animation: float1 13s ease-in-out infinite; }
.p5 { width: 9px; height: 9px; left: 50%; top: 45%; animation: float2 15s ease-in-out infinite; }
.p6 { width: 5px; height: 5px; left: 10%; top: 80%; animation: float3 11s ease-in-out infinite; }

@keyframes float1 {
    0%, 100% { transform: translateY(0px) translateX(0px); }
    50% { transform: translateY(-30px) translateX(15px); }
}

@keyframes float2 {
    0%, 100% { transform: translateY(0px) translateX(0px); }
    50% { transform: translateY(25px) translateX(-20px); }
}

@keyframes float3 {
    0%, 100% { transform: translateY(0px) translateX(0px); }
    50% { transform: translateY(-15px) translateX(-25px); }
}

/* Adaptive Contrast for Dark Animated Background on HF Spaces */
.bio-scanning-bg ~ .overlay .slide {
    color: #f1f5f9 !important; /* light slate color */
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8), 0 0 15px rgba(59, 130, 246, 0.3);
}

.bio-scanning-bg ~ .overlay .overlay-text {
    color: #f8fafc !important;
    text-shadow: 0 0 20px rgba(59, 130, 246, 0.8), 0 2px 15px rgba(0, 0, 0, 0.9);
}

.bio-scanning-bg ~ .integration-section .integration-text {
    color: #93c5fd !important;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.9);
}

.bio-scanning-bg ~ #soundcloud-control .sc-desc {
    color: #cbd5e1 !important;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.8);
}

/* Biometric HUD Target Circle */
.bio-target-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 440px;
    height: 440px;
    transform: translate(-50%, -50%);
    border: 1px double rgba(96, 165, 250, 0.12);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    animation: spinTarget 25s linear infinite;
}

@keyframes spinTarget {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Biometric HUD Frame */
.hud-scanner {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 90vw;
    max-width: 780px;
    height: 80vh;
    max-height: 520px;
    transform: translate(-50%, -50%);
    border: 1px dashed rgba(59, 130, 246, 0.15);
    border-radius: 16px;
    pointer-events: none;
    z-index: 1;
    animation: hudGlow 5s ease-in-out infinite;
}

@keyframes hudGlow {
    0%, 100% { border-color: rgba(59, 130, 246, 0.12); box-shadow: inset 0 0 15px rgba(59, 130, 246, 0.02); }
    50% { border-color: rgba(59, 130, 246, 0.28); box-shadow: inset 0 0 30px rgba(59, 130, 246, 0.08); }
}

/* HUD Corners */
.hud-bracket {
    position: absolute;
    width: 28px;
    height: 28px;
    border-color: rgba(96, 165, 250, 0.8);
    border-style: solid;
}

.hud-bracket.tl {
    top: -2px;
    left: -2px;
    border-width: 4px 0 0 4px;
    border-top-left-radius: 12px;
}

.hud-bracket.tr {
    top: -2px;
    right: -2px;
    border-width: 4px 4px 0 0;
    border-top-right-radius: 12px;
}

.hud-bracket.bl {
    bottom: -2px;
    left: -2px;
    border-width: 0 0 4px 4px;
    border-bottom-left-radius: 12px;
}

.hud-bracket.br {
    bottom: -2px;
    right: -2px;
    border-width: 0 4px 4px 0;
    border-bottom-right-radius: 12px;
}

/* HUD System Data Overlay */
.hud-data-left, .hud-data-right {
    position: absolute;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.78rem;
    font-weight: bold;
    color: rgba(96, 165, 250, 0.65);
    text-shadow: 0 0 8px rgba(59, 130, 246, 0.4);
    letter-spacing: 0.08em;
}

.hud-data-left {
    bottom: 20px;
    left: 24px;
    text-align: left;
}

.hud-data-right {
    bottom: 20px;
    right: 24px;
    text-align: right;
}

.hud-line {
    margin-bottom: 6px;
    animation: textFlicker 3s infinite alternate;
}

.hud-line:nth-child(2) {
    animation-delay: 0.5s;
}

.hud-line:nth-child(3) {
    animation-delay: 1.2s;
}

@keyframes textFlicker {
    0%, 100% { opacity: 0.55; }
    45% { opacity: 0.6; }
    50% { opacity: 0.95; }
    55% { opacity: 0.75; }
    85% { opacity: 0.85; }
}