/* ================================================
   gabs.ai - Holographic 3D Product Aesthetic
   ================================================ */

/* --- @property for rainbow border angle --- */
@property --angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

/* --- CSS Variables (primary palette from DESIGN.md) --- */
:root {
    --deep-space: #0a0a1a;
    --panel-dark: #12122a;
    --crystal-white: #f0f0ff;
    --dim-lavender: #8888aa;
    --value-gold: #ffd700;
    --holo-red: #ff6b6b;
    --holo-yellow: #ffd93d;
    --holo-green: #6bff6b;
    --holo-cyan: #6bffff;
    --holo-blue: #6b6bff;
    --holo-magenta: #ff6bff;
    --soft-glow: rgba(120, 120, 255, 0.1);
    --holo-gradient: linear-gradient(135deg, #ff6b6b, #ffd93d, #6bff6b, #6bffff, #6b6bff, #ff6bff);
    --mx: 0;
    --my: 0;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--deep-space);
    color: var(--crystal-white);
    font-family: 'Outfit', sans-serif;
    font-weight: 400;
    font-size: 1rem;
    line-height: 1.65;
    overflow-x: hidden;
}

/* --- Keyframes --- */
@keyframes shimmer {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes spin {
    to { --angle: 360deg; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes prismGlow {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

@keyframes rainbowUnderline {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

@keyframes markerPulse {
    0%, 100% { transform: rotate(45deg) scale(1); }
    50% { transform: rotate(45deg) scale(1.3); }
}

/* --- Hero Section --- */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--deep-space);
    overflow: hidden;
}

#hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

#ambient-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 600px;
    height: 600px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(107, 107, 255, 0.12) 0%, rgba(107, 255, 255, 0.06) 30%, transparent 70%);
    pointer-events: none;
    z-index: 1;
}

/* --- Prism Refraction Motif --- */
#prism-container {
    position: relative;
    width: 200px;
    height: 120px;
    margin-bottom: 1rem;
}

#prism {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 60px;
    height: 60px;
    transform: translate(-50%, -50%);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    background: linear-gradient(135deg, rgba(240, 240, 255, 0.15), rgba(107, 107, 255, 0.1));
    border: 1px solid rgba(240, 240, 255, 0.2);
    animation: prismGlow 3s ease-in-out infinite;
}

#prism-input-beam {
    position: absolute;
    left: 0;
    top: 50%;
    width: 70px;
    height: 2px;
    background: rgba(240, 240, 255, 0.7);
    transform: translateY(-50%);
}

#prism-rays {
    position: absolute;
    right: 0;
    top: 20%;
    display: flex;
    flex-direction: column;
    gap: 3px;
    transform-origin: left center;
}

#prism-rays .ray {
    display: block;
    width: 80px;
    height: 1.5px;
    border-radius: 1px;
}

.ray-red { background: var(--holo-red); transform: rotate(-8deg); }
.ray-yellow { background: var(--holo-yellow); transform: rotate(-4deg); }
.ray-green { background: var(--holo-green); transform: rotate(0deg); }
.ray-cyan { background: var(--holo-cyan); transform: rotate(4deg); }
.ray-blue { background: var(--holo-blue); transform: rotate(8deg); }
.ray-magenta { background: var(--holo-magenta); transform: rotate(12deg); }

/* --- Holographic Character --- */
#holo-character {
    font-family: 'Noto Sans KR', sans-serif;
    font-weight: 700;
    font-size: clamp(8rem, 20vw, 15rem);
    line-height: 1;
    background: linear-gradient(135deg, #ff6b6b, #ffd93d, #6bff6b, #6bffff, #6b6bff, #ff6bff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: shimmer 4s ease-in-out infinite;
    transform: translate(calc(var(--mx) * 10px), calc(var(--my) * 10px));
    transition: transform 0.15s ease-out;
    cursor: default;
    user-select: none;
}

/* --- Brand Name --- */
#brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

#brand-name {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: clamp(2rem, 5vw, 4rem);
    color: var(--crystal-white);
    letter-spacing: 0.02em;
}

#rainbow-underline {
    width: 120%;
    max-width: 300px;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, #ff6b6b, #ffd93d, #6bff6b, #6bffff, #6b6bff, #ff6bff, #ff6b6b);
    background-size: 200% 100%;
    animation: rainbowUnderline 3s linear infinite;
}

/* --- Tagline --- */
#tagline {
    font-family: 'Sora', sans-serif;
    font-weight: 500;
    font-size: 1.1rem;
    color: var(--dim-lavender);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-top: 1rem;
}

#tagline-kr {
    font-family: 'Noto Sans KR', sans-serif;
    font-weight: 400;
    font-size: 1rem;
    color: var(--dim-lavender);
    opacity: 0.7;
}

/* --- Section Heading --- */
.section-heading {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    color: var(--crystal-white);
    text-align: center;
    margin-bottom: 2rem;
}

/* --- Analysis Section --- */
#analysis {
    padding: 6rem 1.5rem;
}

#analysis-inner {
    max-width: 900px;
    margin: 0 auto;
}

#panels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* --- Floating Panels with Rainbow Border --- */
.panel {
    position: relative;
    background: rgba(18, 18, 42, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid;
    border-image: linear-gradient(var(--angle), #ff6b6b, #ffd93d, #6bff6b, #6bffff, #6b6bff, #ff6bff) 1;
    animation: spin 4s linear infinite;
    box-shadow: 0 20px 60px rgba(100, 100, 255, 0.15);
    transform: perspective(1000px) rotateX(2deg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.panel:hover {
    transform: perspective(1000px) rotateX(0deg) translateY(-4px);
    box-shadow: 0 28px 80px rgba(100, 100, 255, 0.25);
}

.panel-icon {
    margin-bottom: 1rem;
}

.panel-title {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 1.3rem;
    color: var(--crystal-white);
    margin-bottom: 0.75rem;
}

.panel-text {
    font-family: 'Outfit', sans-serif;
    font-weight: 400;
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--dim-lavender);
    margin-bottom: 1.25rem;
}

.panel-value {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(136, 136, 170, 0.2);
}

.value-label {
    font-family: 'Sora', sans-serif;
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--dim-lavender);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.value-number {
    font-family: 'Sora', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    font-variant-numeric: tabular-nums;
    color: var(--value-gold);
}

/* --- Value Spectrum Section --- */
#spectrum {
    padding: 6rem 1.5rem;
}

#spectrum-inner {
    max-width: 900px;
    margin: 0 auto;
}

#spectrum-desc {
    font-family: 'Outfit', sans-serif;
    font-weight: 400;
    font-size: 1.05rem;
    line-height: 1.65;
    color: var(--dim-lavender);
    text-align: center;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

#spectrum-bar-container {
    position: relative;
    padding: 2rem 0 3rem;
}

#spectrum-bar {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: linear-gradient(90deg, #ff6b6b, #ffd93d, #6bff6b, #6bffff, #6b6bff, #ff6bff);
    box-shadow: 0 0 20px rgba(107, 107, 255, 0.3), 0 0 40px rgba(107, 255, 255, 0.15);
}

#spectrum-markers {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
}

.marker {
    position: absolute;
    top: calc(2rem - 4px);
    width: 10px;
    height: 10px;
    background: var(--crystal-white);
    transform: rotate(45deg);
    box-shadow: 0 0 8px rgba(240, 240, 255, 0.5);
    transition: transform 0.3s ease;
}

.marker:hover {
    animation: markerPulse 0.6s ease-in-out;
}

.marker::after {
    content: attr(data-label);
    position: absolute;
    top: 18px;
    left: 50%;
    transform: rotate(-45deg) translateX(-50%);
    transform-origin: top left;
    font-family: 'Sora', sans-serif;
    font-weight: 500;
    font-size: 0.75rem;
    color: var(--dim-lavender);
    white-space: nowrap;
    letter-spacing: 0.05em;
}

#spectrum-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 2.5rem;
}

.spectrum-label-start,
.spectrum-label-end {
    font-family: 'Sora', sans-serif;
    font-weight: 500;
    font-size: 0.8rem;
    color: var(--dim-lavender);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* --- Concept Section --- */
#concept {
    padding: 6rem 1.5rem;
}

#concept-inner {
    max-width: 900px;
    margin: 0 auto;
}

.concept-card {
    background: rgba(18, 18, 42, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 16px;
    padding: 3rem;
    border: 1px solid;
    border-image: linear-gradient(var(--angle), #ff6b6b, #ffd93d, #6bff6b, #6bffff, #6b6bff, #ff6bff) 1;
    animation: spin 4s linear infinite;
    box-shadow: 0 20px 60px rgba(100, 100, 255, 0.15);
    text-align: center;
}

.concept-card .section-heading {
    margin-bottom: 1.5rem;
}

.concept-text {
    font-family: 'Outfit', sans-serif;
    font-weight: 400;
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--dim-lavender);
    margin-bottom: 1.25rem;
}

.concept-text:last-child {
    margin-bottom: 0;
}

.concept-text em {
    color: var(--value-gold);
    font-style: normal;
}

/* --- Footer --- */
#footer {
    padding: 3rem 1.5rem;
    border-top: 1px solid rgba(136, 136, 170, 0.15);
}

#footer-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

#footer-brand {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    color: var(--crystal-white);
}

#footer-divider {
    color: rgba(136, 136, 170, 0.3);
}

#footer-tagline {
    font-family: 'Sora', sans-serif;
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--dim-lavender);
}

/* --- Scroll Reveal Animation --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 600px) {
    #holo-character {
        font-size: 7rem;
    }

    #panels {
        grid-template-columns: 1fr;
    }

    .panel {
        transform: none;
    }

    .panel:hover {
        transform: translateY(-4px);
    }

    .concept-card {
        padding: 2rem 1.5rem;
    }

    #prism-container {
        width: 160px;
        height: 100px;
    }
}