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

:root {
    --midnight-ink: #0a0f36;
    --twilight-azure: #1a2f6e;
    --frosted-sky: #7dc4e8;
    --sunrise-amber: #f4a726;
    --cloud-white: #eef3fa;
    --aero-green: #56c596;
    --dawn-rose: #e8879c;
    --spring-overshoot: cubic-bezier(0.34, 1.56, 0.64, 1);
    --spring-settle: cubic-bezier(0.22, 1, 0.36, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', sans-serif;
    font-weight: 400;
    font-size: clamp(1rem, 1.15vw, 1.2rem);
    line-height: 1.72;
    letter-spacing: 0.005em;
    color: var(--cloud-white);
    background: var(--midnight-ink);
    overflow-x: hidden;
}

/* === Sections === */
.section {
    min-height: 100vh;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* === Floating Orbs === */
.orbs-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.floating-orb {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.3), rgba(125, 196, 232, 0.15) 50%, rgba(10, 15, 54, 0.05) 100%);
    animation: float-orb var(--duration) ease-in-out infinite;
    opacity: 0.6;
}

@keyframes float-orb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(var(--dx1), var(--dy1)) scale(1.03); }
    50% { transform: translate(var(--dx2), var(--dy2)) scale(0.97); }
    75% { transform: translate(var(--dx3), var(--dy3)) scale(1.02); }
}

/* === Section 1: Dawn === */
.section-dawn {
    background: var(--midnight-ink);
}

.dawn-orb {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, rgba(255,255,255,0.35), rgba(125, 196, 232, 0.25) 45%, rgba(26, 47, 110, 0.15) 70%, transparent 100%);
    opacity: 0;
    transition: opacity 1.2s ease;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -60%);
}

.dawn-orb.visible {
    opacity: 1;
}

.dawn-title {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    font-size: clamp(3rem, 8vw, 6rem);
    letter-spacing: -0.02em;
    line-height: 1.08;
    color: var(--cloud-white);
    margin-top: 140px;
    opacity: 0;
    transition: opacity 0.6s ease;
}

.dawn-title.visible {
    opacity: 1;
}

.dawn-title .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s var(--spring-overshoot);
}

.dawn-title .char.visible {
    opacity: 1;
    transform: translateY(0);
}

.dawn-subtitle {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--frosted-sky);
    margin-top: 1.5rem;
    opacity: 0;
    transition: opacity 0.6s ease 0.4s;
}

.dawn-subtitle.visible {
    opacity: 1;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.6s ease 1s;
}

.scroll-indicator.visible {
    opacity: 1;
}

.diamond-pulse {
    width: 12px;
    height: 12px;
    background: var(--frosted-sky);
    transform: rotate(45deg);
    animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.4; transform: rotate(45deg) scale(1); }
    50% { opacity: 1; transform: rotate(45deg) scale(1.3); }
}

/* === Ribbon Container === */
.ribbon-container {
    max-width: 720px;
    width: 90%;
    margin: 0 auto;
    padding: 80px 0;
}

.ribbon-wide {
    max-width: 960px;
}

/* === Section Labels === */
.section-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--frosted-sky);
    display: block;
    margin-bottom: 2rem;
    opacity: 0.7;
}

/* === Section 2: First Light === */
.section-first-light {
    background: linear-gradient(180deg, var(--midnight-ink) 0%, var(--twilight-azure) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.editorial-content {
    position: relative;
}

.text-block p {
    margin-bottom: 1.5rem;
    color: var(--cloud-white);
}

.duotone-photo {
    width: 40%;
    float: right;
    margin: 0 0 2rem 2rem;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 3/4;
    position: relative;
    shape-outside: ellipse(55% 50% at 50% 50%);
}

.photo-inner {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--midnight-ink) 0%, var(--twilight-azure) 40%, var(--frosted-sky) 100%);
    position: relative;
}

.photo-inner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 60% 40%, rgba(125,196,232,0.4) 0%, rgba(10,15,54,0.6) 100%);
}

/* === Reveal Animation === */
.reveal-element {
    opacity: 0;
    transform: translate(-8px, 12px);
    transition: opacity 0.7s var(--spring-settle), transform 0.7s var(--spring-overshoot);
}

.reveal-element.revealed {
    opacity: 1;
    transform: translate(0, 0);
}

/* === Section 3: Geometry of Joy === */
.section-geometry {
    background: var(--midnight-ink);
    min-height: 100vh;
}

.geo-canvas {
    width: 100%;
    height: 60vh;
    position: relative;
    overflow: hidden;
}

.geo-item {
    position: absolute;
    transition: transform 0.3s var(--spring-settle);
}

.geo-item.circle {
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.2), var(--shape-color) 70%);
}

.geo-item.diamond {
    transform: rotate(45deg);
    border: 2px solid var(--shape-color);
    background: transparent;
}

.geo-item.rounded-rect {
    border-radius: 12px;
    background: var(--shape-color);
    opacity: 0.7;
}

/* === Section 4: Unhurried Hour === */
.section-unhurried {
    background: linear-gradient(180deg, var(--twilight-azure) 0%, var(--midnight-ink) 100%);
}

.editorial-narrow {
    max-width: 560px;
    margin: 0 auto;
}

.pull-quote {
    border-left: 3px solid var(--dawn-rose);
    padding-left: 1.5rem;
    margin: 2.5rem 0;
}

.pull-quote p {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    line-height: 1.3;
    color: var(--sunrise-amber);
}

/* === Section 5: Spectrum === */
.section-spectrum {
    background: var(--midnight-ink);
    min-height: 100vh;
    overflow: hidden;
}

.spectrum-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--midnight-ink) 0%, var(--twilight-azure) 50%, var(--frosted-sky) 100%);
    opacity: 0.3;
}

.spectrum-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    padding: 4rem 2rem;
    max-width: 1100px;
    width: 90%;
    position: relative;
    z-index: 1;
}

.spectrum-card {
    background: linear-gradient(180deg, rgba(125, 196, 232, 0.08) 0%, rgba(10, 15, 54, 0.04) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(125, 196, 232, 0.2);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    box-shadow: 0 2px 8px rgba(10, 15, 54, 0.08), 0 12px 36px rgba(10, 15, 54, 0.12);
    border-top: 3px solid var(--card-border-color, var(--frosted-sky));
}

.spectrum-card[data-color="#0a0f36"] { --card-border-color: #0a0f36; }
.spectrum-card[data-color="#1a2f6e"] { --card-border-color: #1a2f6e; }
.spectrum-card[data-color="#7dc4e8"] { --card-border-color: #7dc4e8; }
.spectrum-card[data-color="#f4a726"] { --card-border-color: #f4a726; }
.spectrum-card[data-color="#e8879c"] { --card-border-color: #e8879c; }
.spectrum-card[data-color="#56c596"] { --card-border-color: #56c596; }
.spectrum-card[data-color="#eef3fa"] { --card-border-color: #eef3fa; }

.card-phrase {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--cloud-white);
}

.card-hex {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    color: var(--frosted-sky);
    opacity: 0.8;
}

/* === Section 6: Golden Hour === */
.section-golden {
    background: linear-gradient(180deg, var(--midnight-ink) 0%, #1a1a3e 50%, var(--midnight-ink) 100%);
}

.geo-cluster {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    padding: 2rem 0;
}

.geo-shape {
    transition: transform 0.3s var(--spring-settle);
}

.geo-shape.circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--shape-color);
    opacity: 0.7;
}

.geo-shape.circle.small {
    width: 30px;
    height: 30px;
}

.geo-shape.diamond {
    width: 36px;
    height: 36px;
    transform: rotate(45deg);
    border: 2px solid var(--shape-color);
}

.geo-shape.rounded-rect {
    width: 60px;
    height: 36px;
    border-radius: 10px;
    background: var(--shape-color);
    opacity: 0.6;
}

/* === Section 7: Twilight === */
.section-twilight {
    background: var(--midnight-ink);
    min-height: 100vh;
}

.twilight-shapes {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.twilight-shape {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.2), var(--shape-color) 70%);
    opacity: 0;
    transition: opacity 1.5s ease, transform 2s var(--spring-settle);
}

.twilight-shape.visible {
    opacity: 0.5;
}

.twilight-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.twilight-closing {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    font-size: clamp(2.2rem, 6vw, 5rem);
    letter-spacing: -0.02em;
    line-height: 1.08;
    color: var(--cloud-white);
    opacity: 0;
    transition: opacity 0.8s ease;
}

.twilight-closing.visible {
    opacity: 1;
}

.twilight-footer {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    opacity: 0;
    transition: opacity 0.8s ease 0.4s;
}

.twilight-footer.visible {
    opacity: 1;
}

.diamond-small {
    width: 8px;
    height: 8px;
    background: var(--frosted-sky);
    transform: rotate(45deg);
}

.twilight-domain {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.04em;
    color: var(--frosted-sky);
}

/* === Diamond Lattice Background === */
.section-geometry::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: repeating-conic-gradient(
        from 45deg,
        transparent 0deg 89deg,
        rgba(125, 196, 232, 0.06) 89deg 91deg,
        transparent 91deg 180deg
    );
    background-size: 60px 60px;
    pointer-events: none;
}

/* === Responsive === */
@media (max-width: 768px) {
    .duotone-photo {
        width: 100%;
        float: none;
        margin: 1.5rem 0;
        shape-outside: none;
    }

    .spectrum-cards {
        grid-template-columns: 1fr 1fr;
    }

    .ribbon-container {
        width: 92%;
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .spectrum-cards {
        grid-template-columns: 1fr;
    }
}