/* ===============================================
   PREMIUM 3D ENHANCEMENT LAYER
   Adds subtle 3D depth, perspective, and transitions
   WITHOUT changing existing layout or functionality
   =============================================== */

/* ================= MIDNIGHT THEME COLORS ================= */
:root {
    /* Override with midnight theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #13111c;
    --bg-tertiary: #1a1625;
    
    --deep-midnight: #0a0a0f;
    --dark-purple: #1a0f2e;
    --deep-blue: #0f1729;
    --accent-purple: #6366f1;
    --accent-blue: #3b82f6;
    
    /* Enhanced glassmorphism */
    --glass-bg: rgba(26, 22, 37, 0.7);
    --glass-border: rgba(99, 102, 241, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    
    /* 3D perspective values */
    --perspective-distance: 1000px;
    --card-depth: 20px;
    --hover-lift: -10px;
}

/* ================= GLOBAL 3D SETUP ================= */
html {
    perspective: var(--perspective-distance);
    perspective-origin: center center;
}

body {
    background: linear-gradient(135deg, 
        var(--deep-midnight) 0%, 
        var(--dark-purple) 50%, 
        var(--deep-blue) 100%);
    background-attachment: fixed;
    transform-style: preserve-3d;
    position: relative;
    overflow-x: hidden;
}

/* Animated background gradient */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, 
        rgba(99, 102, 241, 0.1) 0%, 
        transparent 50%);
    animation: rotateBackground 30s linear infinite;
    pointer-events: none;
    z-index: 0;
}

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

/* ================= 3D CONTAINER ENHANCEMENTS ================= */
.glass-container {
    transform-style: preserve-3d;
    transform: translateZ(0);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: 
        var(--glass-shadow),
        0 0 40px rgba(99, 102, 241, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Add depth layers to container */
.glass-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(99, 102, 241, 0.05) 0%, 
        transparent 50%, 
        rgba(59, 130, 246, 0.05) 100%);
    border-radius: inherit;
    pointer-events: none;
    transform: translateZ(-5px);
}

/* 3D hover effect on containers */
.glass-container:hover {
    transform: translateZ(var(--card-depth)) rotateX(2deg) rotateY(-2deg);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 60px rgba(99, 102, 241, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

/* ================= 3D CARD EFFECTS ================= */
.glass-card {
    transform-style: preserve-3d;
    transform: translateZ(0);
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(15px) saturate(180%);
    border: 1px solid var(--glass-border);
}

/* Layered depth effect */
.glass-card::after {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    background: linear-gradient(135deg, 
        rgba(99, 102, 241, 0.03) 0%, 
        transparent 100%);
    border-radius: inherit;
    pointer-events: none;
    transform: translateZ(-10px);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.glass-card:hover {
    transform: translateZ(15px) translateY(-5px) rotateX(5deg);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 
        0 15px 40px rgba(0, 0, 0, 0.4),
        0 0 40px rgba(99, 102, 241, 0.15);
}

.glass-card:hover::after {
    opacity: 1;
}

/* ================= 3D BUTTON ENHANCEMENTS ================= */
.ecosystem-button, button, .btn-primary, .btn-secondary, .btn-danger, .btn-view {
    transform-style: preserve-3d;
    transform: translateZ(0);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

/* 3D button depth layer */
.ecosystem-button::before, 
button::before,
.btn-primary::before,
.btn-secondary::before,
.btn-danger::before,
.btn-view::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.1) 0%, 
        transparent 100%);
    transform: translateZ(-5px);
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.ecosystem-button:hover,
button:hover,
.btn-primary:hover,
.btn-secondary:hover,
.btn-danger:hover,
.btn-view:hover {
    transform: translateZ(10px) translateY(-3px) scale(1.02);
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(99, 102, 241, 0.3);
}

.ecosystem-button:hover::before,
button:hover::before,
.btn-primary:hover::before,
.btn-secondary:hover::before,
.btn-danger:hover::before,
.btn-view:hover::before {
    opacity: 1;
}

.ecosystem-button:active,
button:active,
.btn-primary:active,
.btn-secondary:active,
.btn-danger:active,
.btn-view:active {
    transform: translateZ(2px) translateY(0) scale(0.98);
}

/* ================= 3D INPUT FIELDS ================= */
.glass-input, input[type="text"], input[type="password"], input[type="file"] {
    transform-style: preserve-3d;
    transform: translateZ(0);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    background: rgba(26, 22, 37, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.glass-input:focus,
input[type="text"]:focus,
input[type="password"]:focus {
    transform: translateZ(8px) scale(1.01);
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 
        0 8px 25px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(99, 102, 241, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* ================= FILE UPLOAD ZONE 3D ================= */
.upload-ecosystem {
    transform-style: preserve-3d;
    transform: translateZ(0);
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 2px dashed rgba(99, 102, 241, 0.3);
}

.upload-ecosystem::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, 
        rgba(99, 102, 241, 0.05) 0%, 
        transparent 70%);
    border-radius: inherit;
    transform: translateZ(-10px);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.upload-ecosystem:hover {
    transform: translateZ(15px) scale(1.02);
    border-color: rgba(99, 102, 241, 0.6);
    box-shadow: 
        0 15px 40px rgba(0, 0, 0, 0.4),
        0 0 50px rgba(99, 102, 241, 0.2);
}

.upload-ecosystem:hover::before {
    opacity: 1;
}

/* ================= FILE LIST 3D EFFECTS ================= */
.file-ecosystem {
    transform-style: preserve-3d;
    transform: translateZ(0);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    background: rgba(26, 22, 37, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.15);
}

.file-ecosystem:hover {
    transform: translateZ(8px) translateX(10px) rotateY(-2deg);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 
        0 8px 25px rgba(0, 0, 0, 0.3),
        0 0 25px rgba(99, 102, 241, 0.15);
}

/* ================= PARALLAX SCROLL EFFECTS ================= */
.parallax-layer {
    transform-style: preserve-3d;
    will-change: transform;
}

/* Apply parallax to different depth layers */
.glass-container {
    transform: translateZ(0);
}

.glass-card {
    transform: translateZ(10px);
}

h1, h2, h3 {
    transform: translateZ(20px);
    transition: transform 0.3s ease;
}

/* ================= 3D PAGE TRANSITION OVERLAY ================= */
#page-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(10, 10, 15, 0.95) 0%, 
        rgba(26, 15, 46, 0.95) 50%,
        rgba(15, 23, 41, 0.95) 100%);
    backdrop-filter: blur(20px);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transform: translateZ(100px) scale(0.9);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

#page-transition-overlay.active {
    opacity: 1;
    pointer-events: all;
    transform: translateZ(0) scale(1);
}

/* Transition loader */
.transition-loader {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(99, 102, 241, 0.2);
    border-top-color: #6366f1;
    border-radius: 50%;
    animation: spin3D 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
    transform-style: preserve-3d;
}

@keyframes spin3D {
    0% {
        transform: rotate(0deg) rotateY(0deg);
    }
    50% {
        transform: rotate(180deg) rotateY(180deg);
    }
    100% {
        transform: rotate(360deg) rotateY(360deg);
    }
}

/* ================= ENHANCED PROGRESS BAR 3D ================= */
#progressContainer {
    transform-style: preserve-3d;
    transform: translateZ(5px);
    background: rgba(26, 22, 37, 0.7);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

#progressBar {
    transform-style: preserve-3d;
    transform: translateZ(2px);
    box-shadow: 
        0 0 20px rgba(99, 102, 241, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* ================= NOTIFICATION 3D EFFECTS ================= */
#notificationContainer {
    transform-style: preserve-3d;
    perspective: 1000px;
}

#notificationContainer > div {
    transform-style: preserve-3d;
    transform: translateZ(0);
}

/* ================= LINK 3D HOVER ================= */
.ecosystem-link {
    transform-style: preserve-3d;
    transform: translateZ(0);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    background: rgba(20, 184, 166, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(20, 184, 166, 0.3);
}

.ecosystem-link:hover {
    transform: translateZ(8px) translateY(-3px) scale(1.05);
    background: rgba(20, 184, 166, 0.15);
    border-color: rgba(20, 184, 166, 0.6);
    box-shadow: 
        0 8px 25px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(20, 184, 166, 0.3);
}

/* ================= RESPONSIVE 3D ADJUSTMENTS ================= */
@media (max-width: 768px) {
    :root {
        --perspective-distance: 800px;
        --card-depth: 10px;
        --hover-lift: -5px;
    }
    
    /* Reduce 3D effects on mobile for performance */
    .glass-container:hover,
    .glass-card:hover {
        transform: translateZ(8px) translateY(-3px);
    }
    
    .ecosystem-button:hover,
    button:hover {
        transform: translateZ(5px) translateY(-2px) scale(1.01);
    }
}

/* ================= PERFORMANCE OPTIMIZATIONS ================= */
.glass-container,
.glass-card,
.ecosystem-button,
button,
.glass-input,
.upload-ecosystem,
.file-ecosystem {
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    will-change: transform;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        transform: none !important;
    }
    
    html {
        perspective: none;
    }
}

/* ================= SUBTLE AMBIENT PARTICLES ================= */
.ambient-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(99, 102, 241, 0.4);
    border-radius: 50%;
    animation: floatParticle 15s linear infinite;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.6);
}

@keyframes floatParticle {
    0% {
        transform: translateY(100vh) translateZ(0) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) translateZ(50px) scale(1.5);
        opacity: 0;
    }
}

/* ================= SMOOTH PAGE LOAD ANIMATION ================= */
body {
    animation: pageLoadFade 0.8s ease-out;
}

@keyframes pageLoadFade {
    0% {
        opacity: 0;
        transform: translateZ(-50px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateZ(0) scale(1);
    }
}

/* ================= ENHANCED GLASSMORPHISM ================= */
.glass-container,
.glass-card {
    background: linear-gradient(135deg, 
        rgba(26, 22, 37, 0.8) 0%, 
        rgba(26, 22, 37, 0.6) 100%);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
}

/* Add subtle glow to interactive elements */
.ecosystem-button:hover,
button:hover,
.glass-input:focus {
    box-shadow: 
        0 0 30px rgba(99, 102, 241, 0.3),
        0 8px 25px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}