/* ========================================
   TIME ENGINEER'S LABORATORY
   CSS Styles - No animations (GSAP only)
   ======================================== */

/* CSS Variables */
:root {
    --bg-primary: #0B0D10;
    --bg-secondary: #14181D;
    --accent: #D4A14A;
    --accent-dim: #8B7355;
    --text-primary: #F3EFE6;
    --text-secondary: #B8B2A6;
    --border: rgba(243, 239, 230, 0.1);
    --font-display: 'Cinzel', serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
}

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

html {
    font-size: 16px;
    scroll-behavior: auto;
}

html.lenis, html.lenis body {
    height: auto;
}

.lenis.lenis-smooth {
    scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
    overscroll-behavior: contain;
}

.lenis.lenis-stopped {
    overflow: hidden;
}

.lenis.lenis-scrolling iframe {
    pointer-events: none;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.65;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Grain Overlay */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.08;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: linear-gradient(to bottom, rgba(11, 13, 16, 0.9) 0%, transparent 100%);
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.14em;
    color: var(--accent);
    font-weight: 500;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    color: var(--text-secondary);
    text-decoration: none;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease;
    will-change: transform;
}

.btn:hover {
    transform: translateY(-2px) scale(1.02);
}

.btn-primary {
    background-color: var(--accent);
    color: var(--bg-primary);
    font-weight: 500;
}

.btn-text {
    background: transparent;
    color: var(--text-secondary);
    padding: 0.875rem 1rem;
}

.btn-text:hover {
    color: var(--accent);
}

.btn-glow {
    box-shadow: 0 0 20px rgba(212, 161, 74, 0.3), 0 0 40px rgba(212, 161, 74, 0.1);
}

.btn-full {
    width: 100%;
}

/* Section Base */
.section {
    position: relative;
    width: 100%;
    min-height: 100vh;
    overflow: hidden;
}

.section.pinned {
    height: 100vh;
}

.section.flowing {
    padding: 8vh 0;
}

/* Section Content */
.section-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4.2vw, 4rem);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-primary);
    line-height: 1.05;
    margin-bottom: 1.5rem;
}

.section-body {
    font-family: var(--font-body);
    font-size: clamp(0.875rem, 1.2vw, 1rem);
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 44vw;
    margin: 0 auto 2rem;
}

.section-subtitle {
    font-family: var(--font-body);
    font-size: clamp(0.875rem, 1.2vw, 1rem);
    color: var(--text-secondary);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 4rem;
}

/* ========================================
   SECTION 1: HERO
   ======================================== */
.section-hero {
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at center, rgba(20, 24, 29, 0.5) 0%, var(--bg-primary) 70%);
}

.gear {
    position: absolute;
    z-index: 1;
    will-change: transform;
}

.gear-large {
    width: 18vw;
    max-width: 280px;
}

.gear-top-left {
    top: 10vh;
    left: 6vw;
}

.gear-bottom-right {
    bottom: 10vh;
    right: 6vw;
    width: 22vw;
    max-width: 340px;
}

.gear svg {
    width: 100%;
    height: auto;
    display: block;
}

.hero-engine {
    position: absolute;
    left: 50%;
    top: 54%;
    transform: translate(-50%, -50%);
    width: 62vw;
    max-width: 920px;
    z-index: 2;
}

.hero-engine img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 0 2rem;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.75rem, 6vw, 5.25rem);
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--text-primary);
    line-height: 0.95;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: clamp(0.875rem, 1.2vw, 1rem);
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

.steam {
    position: absolute;
    z-index: 3;
    opacity: 0.35;
    pointer-events: none;
}

.steam img {
    width: 100%;
    height: auto;
}

.steam-left {
    left: -5vw;
    top: 10vh;
    width: 25vw;
    transform: rotate(-15deg);
}

.steam-right {
    right: -5vw;
    bottom: 10vh;
    width: 25vw;
    transform: rotate(15deg) scaleX(-1);
}

/* ========================================
   SECTION 2: BLUEPRINT
   ======================================== */
.section-blueprint {
    background: var(--bg-primary);
}

.blueprint-image {
    position: absolute;
    left: -6vw;
    top: 52%;
    transform: translateY(-50%);
    width: 58vw;
    z-index: 2;
}

.blueprint-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.notebook-image {
    position: absolute;
    right: -4vw;
    top: 52%;
    transform: translateY(-50%);
    width: 52vw;
    z-index: 3;
}

.notebook-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

/* ========================================
   SECTION 3: GEARS
   ======================================== */
.section-gears {
    background: var(--bg-primary);
}

.gear-cluster {
    position: absolute;
    z-index: 2;
}

.gear-cluster-left {
    left: -10vw;
    top: 50%;
    transform: translateY(-50%);
    width: 55vw;
    max-width: 800px;
}

.gear-cluster svg {
    width: 100%;
    height: auto;
    display: block;
}

.engine-center {
    position: absolute;
    left: 50%;
    top: 54%;
    transform: translate(-50%, -50%);
    width: 48vw;
    max-width: 720px;
    z-index: 3;
}

.engine-center img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.gear-small {
    position: absolute;
    z-index: 4;
}

.gear-right {
    right: 10vw;
    top: 54%;
    transform: translateY(-50%);
    width: 18vw;
    max-width: 260px;
}

.gear-right svg {
    width: 100%;
    height: auto;
    display: block;
}

/* ========================================
   SECTION 4: STEAM
   ======================================== */
.section-steam {
    background: var(--bg-primary);
}

.steam-layer {
    position: absolute;
    top: 0;
    height: 100%;
    width: 30vw;
    z-index: 1;
    opacity: 0.45;
    pointer-events: none;
}

.steam-layer img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.steam-layer-left {
    left: 0;
}

.steam-layer-right {
    right: 0;
    transform: scaleX(-1);
}

.engine-powered {
    position: absolute;
    left: 50%;
    top: 56%;
    transform: translate(-50%, -50%);
    width: 46vw;
    max-width: 700px;
    z-index: 3;
}

.engine-powered img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.gear-decor {
    position: absolute;
    z-index: 2;
}

.gear-top-right {
    right: 8vw;
    top: 14vh;
    width: 14vw;
    max-width: 200px;
    opacity: 0.7;
}

.gear-top-right svg {
    width: 100%;
    height: auto;
    display: block;
}

/* ========================================
   SECTION 5: CALIBRATION
   ======================================== */
.section-calibration {
    background: var(--bg-primary);
}

.panel {
    position: absolute;
    top: 52%;
    transform: translateY(-50%);
    z-index: 2;
}

.panel-left {
    left: 6vw;
    width: 34vw;
    max-width: 500px;
}

.panel-right {
    right: 6vw;
    width: 34vw;
    max-width: 500px;
}

.panel img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.energy-line {
    position: absolute;
    left: 50%;
    top: 52%;
    transform: translateX(-50%);
    width: 60vw;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, var(--accent) 20%, var(--accent) 80%, transparent 100%);
    z-index: 1;
    opacity: 0.35;
}

.counters {
    position: absolute;
    bottom: 15vh;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 4rem;
    z-index: 10;
}

.counter {
    text-align: center;
}

.counter-value {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(2rem, 3vw, 3.5rem);
    font-weight: 600;
    color: var(--accent);
    line-height: 1;
}

.counter-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.14em;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* ========================================
   SECTION 6: ACTIVATION
   ======================================== */
.section-activation {
    background: radial-gradient(ellipse at center, rgba(212, 161, 74, 0.08) 0%, var(--bg-primary) 60%);
}

.energy-line-main {
    position: absolute;
    left: 50%;
    top: 54%;
    transform: translate(-50%, -50%);
    width: 80vw;
    height: 3px;
    background: linear-gradient(90deg, transparent 0%, var(--accent) 30%, var(--accent) 70%, transparent 100%);
    z-index: 1;
    box-shadow: 0 0 30px rgba(212, 161, 74, 0.5), 0 0 60px rgba(212, 161, 74, 0.2);
}

.engine-activation {
    position: absolute;
    left: 50%;
    top: 54%;
    transform: translate(-50%, -50%);
    width: 56vw;
    max-width: 840px;
    z-index: 3;
}

.engine-activation img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.sparks-container {
    position: absolute;
    left: 50%;
    top: 54%;
    transform: translate(-50%, -50%);
    width: 60vw;
    height: 60vh;
    z-index: 4;
    pointer-events: none;
}

.spark {
    position: absolute;
    width: 3px;
    height: 3px;
    background-color: var(--accent);
    border-radius: 50%;
    opacity: 0;
}

.spark:nth-child(1) { top: 20%; left: 30%; }
.spark:nth-child(2) { top: 35%; left: 70%; }
.spark:nth-child(3) { top: 50%; left: 25%; }
.spark:nth-child(4) { top: 65%; left: 75%; }
.spark:nth-child(5) { top: 25%; left: 55%; }
.spark:nth-child(6) { top: 70%; left: 40%; }
.spark:nth-child(7) { top: 45%; left: 80%; }
.spark:nth-child(8) { top: 55%; left: 15%; }

/* ========================================
   SECTION 7: ERAS
   ======================================== */
.section-eras {
    background: var(--bg-primary);
    padding: 10vh 5vw;
}

.section-header {
    text-align: center;
    margin-bottom: 6vh;
}

.era-cards {
    display: flex;
    flex-direction: column;
    gap: 6vh;
    max-width: 1200px;
    margin: 0 auto;
}

.era-card {
    display: grid;
    grid-template-columns: 55% 45%;
    background: rgba(243, 239, 230, 0.03);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.era-image {
    position: relative;
    overflow: hidden;
}

.era-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.era-content {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.era-title {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.5rem;
}

.era-date {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    color: var(--accent);
    margin-bottom: 1rem;
}

.era-description {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

/* ========================================
   SECTION 8: SAFETY
   ======================================== */
.section-safety {
    background: var(--bg-primary);
    padding: 10vh 5vw;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.safety-content {
    padding: 2rem;
}

.safety-list {
    list-style: none;
    margin: 2rem 0;
}

.safety-list li {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
    border-left: 2px solid var(--accent);
}

.protocol-name {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.protocol-desc {
    display: block;
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.safety-image {
    position: relative;
}

.safety-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
    transform: rotate(-2deg);
}

/* ========================================
   SECTION 9: CONTACT
   ======================================== */
.section-contact {
    background: var(--bg-secondary);
    padding: 10vh 5vw 5vh;
}

.contact-container {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.contact-form {
    margin-top: 3rem;
    text-align: left;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(243, 239, 230, 0.05);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23B8B2A6' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

.form-group select option {
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* Footer */
.footer {
    margin-top: 6rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
}

.footer-links a {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    color: var(--text-secondary);
    text-decoration: none;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent);
}

.copyright {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-secondary);
    opacity: 0.6;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .blueprint-image,
    .notebook-image {
        width: 70vw;
        opacity: 0.3;
    }
    
    .panel-left,
    .panel-right {
        width: 40vw;
        opacity: 0.4;
    }
    
    .gear-cluster-left {
        width: 70vw;
        opacity: 0.4;
    }
    
    .gear-right {
        opacity: 0.4;
    }
    
    .counters {
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .nav {
        padding: 1rem 1.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero-engine {
        width: 85vw;
    }
    
    .gear-large {
        width: 30vw;
    }
    
    .section-body {
        max-width: 80vw;
    }
    
    .blueprint-image {
        left: -20vw;
        top: 30%;
        width: 90vw;
    }
    
    .notebook-image {
        right: -20vw;
        top: 70%;
        width: 90vw;
    }
    
    .engine-center,
    .engine-powered,
    .engine-activation {
        width: 80vw;
    }
    
    .gear-cluster-left {
        left: -30vw;
        width: 90vw;
        opacity: 0.3;
    }
    
    .gear-right {
        right: 5vw;
        width: 25vw;
        opacity: 0.3;
    }
    
    .panel-left,
    .panel-right {
        display: none;
    }
    
    .counters {
        flex-direction: column;
        gap: 1.5rem;
        bottom: 10vh;
    }
    
    .era-card {
        grid-template-columns: 1fr;
    }
    
    .era-image {
        height: 200px;
    }
    
    .section-safety {
        grid-template-columns: 1fr;
    }
    
    .safety-image {
        order: -1;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .steam-layer {
        width: 50vw;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}