/* ============================================
   aiice.io v2 - Crystalline Surrealism
   A frozen digital wonderland descent
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    --abyssal-ink: #0B0E1A;
    --twilight-violet: #1A0B2E;
    --frost-blue: #4A6FA5;
    --ice-breath: #C8D8E8;
    --aurora-lavender: #9B7FD4;
    --glacial-teal: #0B2E2A;
    --crack-white: #E8EDF5;
    --frozen-rose: #D4A0B0;
    --deep-navy: #1A2744;
    --abyss: #050508;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    background-color: var(--abyssal-ink);
    color: var(--ice-breath);
    font-family: 'Outfit', sans-serif;
    font-weight: 300;
    font-size: clamp(15px, 1.2vw, 18px);
    line-height: 1.9;
    overflow-x: hidden;
    position: relative;
}

/* --- Ice Crack Tessellation Pattern --- */
.ice-crack-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0;
    transition: opacity 1.5s ease;
    background:
        linear-gradient(17deg, transparent 49.5%, rgba(74, 111, 165, 0.15) 49.5%, rgba(74, 111, 165, 0.15) 50.5%, transparent 50.5%),
        linear-gradient(97deg, transparent 49.5%, rgba(74, 111, 165, 0.12) 49.5%, rgba(74, 111, 165, 0.12) 50.5%, transparent 50.5%),
        linear-gradient(143deg, transparent 49.5%, rgba(74, 111, 165, 0.18) 49.5%, rgba(74, 111, 165, 0.18) 50.5%, transparent 50.5%),
        linear-gradient(59deg, transparent 49.5%, rgba(74, 111, 165, 0.10) 49.5%, rgba(74, 111, 165, 0.10) 50.5%, transparent 50.5%),
        linear-gradient(165deg, transparent 49.5%, rgba(74, 111, 165, 0.20) 49.5%, rgba(74, 111, 165, 0.20) 50.5%, transparent 50.5%),
        linear-gradient(31deg, transparent 49.5%, rgba(74, 111, 165, 0.14) 49.5%, rgba(74, 111, 165, 0.14) 50.5%, transparent 50.5%),
        linear-gradient(119deg, transparent 49.5%, rgba(74, 111, 165, 0.16) 49.5%, rgba(74, 111, 165, 0.16) 50.5%, transparent 50.5%),
        linear-gradient(73deg, transparent 49.5%, rgba(74, 111, 165, 0.11) 49.5%, rgba(74, 111, 165, 0.11) 50.5%, transparent 50.5%);
    background-size:
        120px 120px,
        180px 180px,
        90px 90px,
        150px 150px,
        200px 200px,
        110px 110px,
        160px 160px,
        130px 130px;
}

.ice-crack-overlay.visible {
    opacity: 1;
}

.ice-crack-overlay.subtle {
    opacity: 0;
}

.ice-crack-overlay.subtle.visible {
    opacity: 0.4;
}

/* --- Descending SVG Line --- */
.descending-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
}

/* --- Opening Viewport --- */
.opening-viewport {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--abyssal-ink);
    overflow: hidden;
    z-index: 1;
}

/* Wordmark */
.wordmark {
    display: flex;
    align-items: baseline;
    justify-content: center;
    z-index: 3;
    position: relative;
}

.wordmark .letter {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 300;
    font-size: clamp(60px, 12vw, 140px);
    color: var(--crack-white);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    display: inline-block;
}

.wordmark .letter.revealed {
    transform: translateY(0);
}

.letter-a1.revealed { opacity: 0.3; }
.letter-i1.revealed { opacity: 0.5; }
.letter-i2.revealed { opacity: 0.7; }
.letter-c.revealed  { opacity: 0.9; }
.letter-e.revealed  { opacity: 1.0; }

/* Descend indicator line */
.descend-indicator {
    margin-top: 40px;
    z-index: 3;
}

.descend-line {
    width: 1px;
    height: 0;
    background-color: var(--frost-blue);
    transition: height 2s ease-out;
}

.descend-line.grown {
    height: 200px;
}

/* AI Whisper fragments */
.ai-whisper {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 400;
    font-size: 12px;
    letter-spacing: 0.08em;
    color: var(--frost-blue);
    opacity: 0.2;
    position: absolute;
    animation: whisper-fade 8s ease-in-out infinite alternate;
    z-index: 2;
    pointer-events: none;
}

.whisper-1 {
    top: 15%;
    right: 8%;
    animation-delay: 0s;
}

.whisper-2 {
    bottom: 20%;
    left: 6%;
    animation-delay: 3s;
}

.whisper-3 {
    top: 10%;
    right: 5%;
    animation-delay: 1.5s;
}

.whisper-4 {
    bottom: 15%;
    left: 8%;
    animation-delay: 4s;
}

.whisper-5 {
    top: 8%;
    right: 10%;
    animation-delay: 2s;
}

.whisper-6 {
    bottom: 12%;
    left: 5%;
    animation-delay: 5s;
}

.whisper-7 {
    bottom: 8%;
    right: 8%;
    animation-delay: 1s;
}

@keyframes whisper-fade {
    0% { opacity: 0.2; }
    100% { opacity: 0.6; }
}

/* --- Depth Sections --- */
.depth-section {
    position: relative;
    width: 100%;
    min-height: 100vh;
    padding: 120px 40px;
    z-index: 1;
    display: flex;
    align-items: center;
}

.depth-1 {
    background: linear-gradient(to bottom, var(--abyssal-ink), #0F1228);
    margin-top: -60px;
}

.depth-2 {
    background: linear-gradient(to bottom, #0F1228, var(--twilight-violet));
    margin-top: -60px;
}

.depth-3 {
    background: linear-gradient(to bottom, var(--twilight-violet), var(--glacial-teal));
    margin-top: -60px;
}

.depth-4 {
    background: linear-gradient(to bottom, var(--glacial-teal), var(--abyss));
    margin-top: -60px;
}

/* Gradient blend overlays at top of each section */
.depth-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    pointer-events: none;
    z-index: 0;
}

.depth-1::before {
    background: linear-gradient(to bottom, var(--abyssal-ink), transparent);
}

.depth-2::before {
    background: linear-gradient(to bottom, #0F1228, transparent);
}

.depth-3::before {
    background: linear-gradient(to bottom, var(--twilight-violet), transparent);
}

.depth-4::before {
    background: linear-gradient(to bottom, var(--glacial-teal), transparent);
}

/* Content positioning - zigzag */
.depth-content {
    max-width: 600px;
    position: relative;
    z-index: 2;
}

.content-left {
    margin-left: 15%;
    margin-right: auto;
}

.content-right {
    margin-left: auto;
    margin-right: 15%;
}

.depth-heading {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 300;
    font-size: clamp(24px, 4vw, 56px);
    color: var(--crack-white);
    margin-bottom: 32px;
    line-height: 1.2;
}

/* Breathing animation for headings */
.breathing {
    animation: breathe 4s ease-in-out infinite alternate;
}

.depth-1 .breathing { animation-delay: 0s; }
.depth-2 .breathing { animation-delay: 1s; }
.depth-3 .breathing { animation-delay: 2s; }
.depth-4 .breathing { animation-delay: 3s; }

@keyframes breathe {
    0% { transform: scale(1.0); }
    100% { transform: scale(1.008); }
}

.depth-text {
    color: var(--ice-breath);
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.depth-text.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Frost borders on content containers */
.depth-content {
    padding: 40px;
    border: 1px solid transparent;
    border-image: linear-gradient(135deg, rgba(74, 111, 165, 0.5), rgba(155, 127, 212, 0.2), transparent) 1;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s ease, transform 1s ease;
}

.depth-content.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Interstitial Zones --- */
.interstitial {
    position: relative;
    height: 30vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    z-index: 1;
}

.interstitial-1 {
    background: linear-gradient(to bottom, #0F1228, #0F1228);
    margin-top: -40px;
}

.interstitial-2 {
    background: linear-gradient(to bottom, var(--twilight-violet), var(--twilight-violet));
    margin-top: -40px;
}

.interstitial-3 {
    background: linear-gradient(to bottom, var(--glacial-teal), var(--glacial-teal));
    margin-top: -40px;
}

.interstitial-text {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 300;
    font-size: clamp(18px, 2.5vw, 32px);
    color: var(--frozen-rose);
    opacity: 0;
    transition: opacity 1.5s ease;
    font-style: italic;
    z-index: 2;
    position: absolute;
}

.interstitial-text.visible {
    opacity: 0.7;
}

/* Crystalline shapes */
.crystal {
    position: absolute;
    border: 1px solid rgba(74, 111, 165, 0.4);
    background: linear-gradient(135deg, rgba(74, 111, 165, 0.05), rgba(155, 127, 212, 0.03));
    opacity: 0;
    transition: opacity 1s ease;
}

.crystal.animate {
    opacity: 0.6;
}

/* Crystal variants with clip-path polygons */
.crystal-1 {
    width: 80px;
    height: 80px;
    clip-path: polygon(50% 0%, 100% 38%, 82% 100%, 18% 100%, 0% 38%);
    top: 20%;
    left: 15%;
    animation: crystal-rotate-1 25s linear infinite paused;
}

.crystal-2 {
    width: 120px;
    height: 120px;
    clip-path: polygon(30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30%);
    top: 40%;
    right: 20%;
    animation: crystal-rotate-2 32s linear infinite paused;
}

.crystal-3 {
    width: 50px;
    height: 50px;
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    bottom: 25%;
    left: 45%;
    animation: crystal-rotate-3 20s linear infinite paused;
}

.crystal-4 {
    width: 100px;
    height: 100px;
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
    top: 25%;
    right: 25%;
    animation: crystal-rotate-1 28s linear infinite paused;
}

.crystal-5 {
    width: 60px;
    height: 60px;
    clip-path: polygon(50% 0%, 100% 38%, 82% 100%, 18% 100%, 0% 38%);
    bottom: 20%;
    left: 30%;
    animation: crystal-rotate-2 22s linear infinite paused;
}

.crystal-6 {
    width: 90px;
    height: 90px;
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    top: 50%;
    left: 10%;
    animation: crystal-rotate-3 35s linear infinite paused;
}

.crystal-7 {
    width: 70px;
    height: 70px;
    clip-path: polygon(30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30%);
    top: 15%;
    right: 15%;
    animation: crystal-rotate-1 30s linear infinite paused;
}

.crystal-8 {
    width: 110px;
    height: 110px;
    clip-path: polygon(50% 0%, 100% 38%, 82% 100%, 18% 100%, 0% 38%);
    bottom: 20%;
    left: 20%;
    animation: crystal-rotate-2 40s linear infinite paused;
}

.crystal-9 {
    width: 40px;
    height: 40px;
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    top: 60%;
    right: 35%;
    animation: crystal-rotate-3 24s linear infinite paused;
}

.crystal-10 {
    width: 85px;
    height: 85px;
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
    top: 30%;
    left: 55%;
    animation: crystal-rotate-1 36s linear infinite paused;
}

.crystal.animate {
    animation-play-state: running;
}

@keyframes crystal-rotate-1 {
    0% { transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg); }
    100% { transform: rotateX(360deg) rotateY(180deg) rotateZ(90deg); }
}

@keyframes crystal-rotate-2 {
    0% { transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg); }
    100% { transform: rotateX(180deg) rotateY(360deg) rotateZ(270deg); }
}

@keyframes crystal-rotate-3 {
    0% { transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg); }
    100% { transform: rotateX(270deg) rotateY(90deg) rotateZ(360deg); }
}

/* --- Terminal Section --- */
.terminal-section {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--abyss);
    overflow: hidden;
    margin-top: -80px;
    z-index: 1;
}

.terminal-glow {
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(74, 111, 165, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.frosted-circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(74, 111, 165, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    z-index: 3;
}

/* Terminal wordmark - mirrored opacity */
.terminal-wordmark {
    display: flex;
    align-items: baseline;
    justify-content: center;
    z-index: 5;
    position: relative;
}

.terminal-wordmark .letter-t {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 300;
    font-size: 24px;
    color: var(--crack-white);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    display: inline-block;
}

.terminal-wordmark .letter-t.revealed {
    transform: translateY(0);
}

/* Reversed opacity order for terminal */
.letter-t-a1.revealed { opacity: 1.0; }
.letter-t-i1.revealed { opacity: 0.9; }
.letter-t-i2.revealed { opacity: 0.7; }
.letter-t-c.revealed  { opacity: 0.5; }
.letter-t-e.revealed  { opacity: 0.4; }
.letter-t-dot.revealed { opacity: 0.35; }
.letter-t-i3.revealed { opacity: 0.3; }
.letter-t-o.revealed  { opacity: 0.25; }

/* Particles inside frosted circle */
.particle {
    position: absolute;
    border-radius: 50%;
    opacity: 0;
    pointer-events: none;
}

.frosted-circle.active .particle {
    animation: particle-drift linear infinite;
}

.p1  { width: 2px; height: 2px; background: var(--frost-blue); left: 30%; bottom: -5%; animation-duration: 10s; animation-delay: 0s; opacity: 0.6; }
.p2  { width: 3px; height: 3px; background: var(--aurora-lavender); left: 55%; bottom: -5%; animation-duration: 12s; animation-delay: 1s; opacity: 0.4; }
.p3  { width: 2px; height: 2px; background: var(--frost-blue); left: 70%; bottom: -5%; animation-duration: 8s; animation-delay: 2.5s; opacity: 0.5; }
.p4  { width: 3px; height: 3px; background: var(--aurora-lavender); left: 20%; bottom: -5%; animation-duration: 14s; animation-delay: 0.8s; opacity: 0.3; }
.p5  { width: 2px; height: 2px; background: var(--frost-blue); left: 45%; bottom: -5%; animation-duration: 9s; animation-delay: 3s; opacity: 0.7; }
.p6  { width: 2px; height: 2px; background: var(--aurora-lavender); left: 80%; bottom: -5%; animation-duration: 11s; animation-delay: 1.5s; opacity: 0.4; }
.p7  { width: 3px; height: 3px; background: var(--frost-blue); left: 15%; bottom: -5%; animation-duration: 13s; animation-delay: 4s; opacity: 0.5; }
.p8  { width: 2px; height: 2px; background: var(--frost-blue); left: 60%; bottom: -5%; animation-duration: 10s; animation-delay: 2s; opacity: 0.6; }
.p9  { width: 3px; height: 3px; background: var(--aurora-lavender); left: 35%; bottom: -5%; animation-duration: 15s; animation-delay: 0.3s; opacity: 0.35; }
.p10 { width: 2px; height: 2px; background: var(--frost-blue); left: 50%; bottom: -5%; animation-duration: 8.5s; animation-delay: 5s; opacity: 0.5; }
.p11 { width: 2px; height: 2px; background: var(--aurora-lavender); left: 25%; bottom: -5%; animation-duration: 12.5s; animation-delay: 1.2s; opacity: 0.4; }
.p12 { width: 3px; height: 3px; background: var(--frost-blue); left: 75%; bottom: -5%; animation-duration: 9.5s; animation-delay: 3.5s; opacity: 0.55; }
.p13 { width: 2px; height: 2px; background: var(--frost-blue); left: 40%; bottom: -5%; animation-duration: 11.5s; animation-delay: 2.8s; opacity: 0.45; }
.p14 { width: 3px; height: 3px; background: var(--aurora-lavender); left: 65%; bottom: -5%; animation-duration: 13.5s; animation-delay: 0.6s; opacity: 0.3; }
.p15 { width: 2px; height: 2px; background: var(--frost-blue); left: 10%; bottom: -5%; animation-duration: 10.5s; animation-delay: 4.5s; opacity: 0.5; }
.p16 { width: 2px; height: 2px; background: var(--aurora-lavender); left: 85%; bottom: -5%; animation-duration: 14.5s; animation-delay: 1.8s; opacity: 0.35; }
.p17 { width: 3px; height: 3px; background: var(--frost-blue); left: 48%; bottom: -5%; animation-duration: 9s; animation-delay: 3.2s; opacity: 0.6; }
.p18 { width: 2px; height: 2px; background: var(--frost-blue); left: 58%; bottom: -5%; animation-duration: 11s; animation-delay: 2.2s; opacity: 0.45; }

@keyframes particle-drift {
    0% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: var(--p-opacity, 0.5);
    }
    90% {
        opacity: var(--p-opacity, 0.5);
    }
    100% {
        transform: translateY(-220px) translateX(10px);
        opacity: 0;
    }
}

/* Individual particle opacity handling via animation */
.frosted-circle.active .p1  { animation: particle-drift-1  10s   linear 0s     infinite; }
.frosted-circle.active .p2  { animation: particle-drift-2  12s   linear 1s     infinite; }
.frosted-circle.active .p3  { animation: particle-drift-3  8s    linear 2.5s   infinite; }
.frosted-circle.active .p4  { animation: particle-drift-4  14s   linear 0.8s   infinite; }
.frosted-circle.active .p5  { animation: particle-drift-5  9s    linear 3s     infinite; }
.frosted-circle.active .p6  { animation: particle-drift-6  11s   linear 1.5s   infinite; }
.frosted-circle.active .p7  { animation: particle-drift-7  13s   linear 4s     infinite; }
.frosted-circle.active .p8  { animation: particle-drift-8  10s   linear 2s     infinite; }
.frosted-circle.active .p9  { animation: particle-drift-9  15s   linear 0.3s   infinite; }
.frosted-circle.active .p10 { animation: particle-drift-10 8.5s  linear 5s     infinite; }
.frosted-circle.active .p11 { animation: particle-drift-11 12.5s linear 1.2s   infinite; }
.frosted-circle.active .p12 { animation: particle-drift-12 9.5s  linear 3.5s   infinite; }
.frosted-circle.active .p13 { animation: particle-drift-13 11.5s linear 2.8s   infinite; }
.frosted-circle.active .p14 { animation: particle-drift-14 13.5s linear 0.6s   infinite; }
.frosted-circle.active .p15 { animation: particle-drift-15 10.5s linear 4.5s   infinite; }
.frosted-circle.active .p16 { animation: particle-drift-16 14.5s linear 1.8s   infinite; }
.frosted-circle.active .p17 { animation: particle-drift-17 9s    linear 3.2s   infinite; }
.frosted-circle.active .p18 { animation: particle-drift-18 11s   linear 2.2s   infinite; }

@keyframes particle-drift-1  { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.6; } 90% { opacity: 0.6; } 100% { transform: translateY(-210px) translateX(8px); opacity: 0; } }
@keyframes particle-drift-2  { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.4; } 90% { opacity: 0.4; } 100% { transform: translateY(-210px) translateX(-5px); opacity: 0; } }
@keyframes particle-drift-3  { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.5; } 90% { opacity: 0.5; } 100% { transform: translateY(-210px) translateX(12px); opacity: 0; } }
@keyframes particle-drift-4  { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.3; } 90% { opacity: 0.3; } 100% { transform: translateY(-210px) translateX(-8px); opacity: 0; } }
@keyframes particle-drift-5  { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.7; } 90% { opacity: 0.7; } 100% { transform: translateY(-210px) translateX(3px); opacity: 0; } }
@keyframes particle-drift-6  { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.4; } 90% { opacity: 0.4; } 100% { transform: translateY(-210px) translateX(-10px); opacity: 0; } }
@keyframes particle-drift-7  { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.5; } 90% { opacity: 0.5; } 100% { transform: translateY(-210px) translateX(6px); opacity: 0; } }
@keyframes particle-drift-8  { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.6; } 90% { opacity: 0.6; } 100% { transform: translateY(-210px) translateX(-3px); opacity: 0; } }
@keyframes particle-drift-9  { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.35; } 90% { opacity: 0.35; } 100% { transform: translateY(-210px) translateX(15px); opacity: 0; } }
@keyframes particle-drift-10 { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.5; } 90% { opacity: 0.5; } 100% { transform: translateY(-210px) translateX(-7px); opacity: 0; } }
@keyframes particle-drift-11 { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.4; } 90% { opacity: 0.4; } 100% { transform: translateY(-210px) translateX(9px); opacity: 0; } }
@keyframes particle-drift-12 { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.55; } 90% { opacity: 0.55; } 100% { transform: translateY(-210px) translateX(-12px); opacity: 0; } }
@keyframes particle-drift-13 { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.45; } 90% { opacity: 0.45; } 100% { transform: translateY(-210px) translateX(4px); opacity: 0; } }
@keyframes particle-drift-14 { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.3; } 90% { opacity: 0.3; } 100% { transform: translateY(-210px) translateX(-6px); opacity: 0; } }
@keyframes particle-drift-15 { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.5; } 90% { opacity: 0.5; } 100% { transform: translateY(-210px) translateX(11px); opacity: 0; } }
@keyframes particle-drift-16 { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.35; } 90% { opacity: 0.35; } 100% { transform: translateY(-210px) translateX(-4px); opacity: 0; } }
@keyframes particle-drift-17 { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.6; } 90% { opacity: 0.6; } 100% { transform: translateY(-210px) translateX(7px); opacity: 0; } }
@keyframes particle-drift-18 { 0% { transform: translateY(0) translateX(0); opacity: 0; } 10% { opacity: 0.45; } 90% { opacity: 0.45; } 100% { transform: translateY(-210px) translateX(-9px); opacity: 0; } }

/* --- Responsive --- */
@media (max-width: 768px) {
    .content-left,
    .content-right {
        margin-left: 5%;
        margin-right: 5%;
        max-width: 90%;
    }

    .depth-section {
        padding: 80px 20px;
    }

    .depth-content {
        padding: 24px;
    }

    .ai-whisper {
        display: none;
    }

    .frosted-circle {
        width: 160px;
        height: 160px;
    }

    .terminal-wordmark .letter-t {
        font-size: 18px;
    }
}