/* ============================================
   freedom.compare - Styles
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    --parchment-bone: #f4f0eb;
    --ink-obsidian: #1a1a2e;
    --rust-conviction: #b5442a;
    --tarnished-brass: #8e7f72;
    --weathered-bronze: #6b5b4e;
    --ochre-liberty: #d4a843;
    --bruised-slate: #4a4563;
    --chalk-dust: #d9d3ca;
    --deep-well: #2c2c3a;

    --slash-angle: 8deg;
    --divider-position: 50;

    --font-display: 'Bebas Neue', sans-serif;
    --font-body: 'Source Serif 4', Georgia, serif;
    --font-ui: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

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

body {
    background-color: var(--ink-obsidian);
    color: var(--deep-well);
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.8vw, 1.25rem);
    line-height: 1.72;
    overflow-x: hidden;
}

/* --- Navigation --- */
.nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(26, 26, 46, 0.95);
    transform: translateY(-100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-bar.visible {
    transform: translateY(0);
}

.nav-wordmark {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.1em;
    color: var(--parchment-bone);
}

.wordmark-slash {
    color: var(--ochre-liberty);
    display: inline-block;
    transform: rotate(-15deg);
    margin: 0 -0.05em;
}

.nav-hamburger {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--parchment-bone);
    transition: all 0.3s ease;
}

.nav-hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.nav-hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Navigation Overlay --- */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    background: var(--bruised-slate);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.nav-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.overlay-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: center;
}

.overlay-link {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 4rem);
    color: var(--parchment-bone);
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.2s ease;
}

.nav-overlay.active .overlay-link {
    opacity: 1;
    transform: translateY(0);
}

.nav-overlay.active .overlay-link:nth-child(1) { transition-delay: 0.1s; }
.nav-overlay.active .overlay-link:nth-child(2) { transition-delay: 0.15s; }
.nav-overlay.active .overlay-link:nth-child(3) { transition-delay: 0.2s; }
.nav-overlay.active .overlay-link:nth-child(4) { transition-delay: 0.25s; }
.nav-overlay.active .overlay-link:nth-child(5) { transition-delay: 0.3s; }

.overlay-link:hover {
    color: var(--ochre-liberty);
}

/* --- Page content blur when overlay active --- */
body.overlay-open .arena-section,
body.overlay-open .thesis-corridor,
body.overlay-open .comparison-section,
body.overlay-open .closing-section,
body.overlay-open .verdict-gap {
    filter: blur(8px);
    transition: filter 0.3s ease;
}

/* --- Opening Arena --- */
.arena-section {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background: var(--ink-obsidian);
}

.arena-left {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--parchment-bone);
    clip-path: polygon(0 0, calc(var(--divider-position) * 1% + 5%) 0, calc(var(--divider-position) * 1% - 5%) 100%, 0 100%);
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.arena-left.revealed {
    opacity: 1;
}

.arena-left-content {
    padding: 2rem;
    text-align: center;
    max-width: 40vw;
    transform: translateX(-100%);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.arena-left.revealed .arena-left-content {
    transform: translateX(-15%);
}

.arena-right {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--ink-obsidian);
    clip-path: polygon(calc(var(--divider-position) * 1% + 5%) 0, 100% 0, 100% 100%, calc(var(--divider-position) * 1% - 5%) 100%);
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.arena-right-content {
    padding: 2rem;
    text-align: center;
    max-width: 40vw;
    transform: translateX(100%);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.arena-left.revealed ~ .arena-right .arena-right-content {
    transform: translateX(15%);
}

.arena-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    letter-spacing: 0.05em;
    line-height: 1;
    margin-bottom: 1rem;
}

.arena-title-left {
    color: var(--ink-obsidian);
}

.arena-title-right {
    color: var(--parchment-bone);
}

.arena-subtitle-left {
    font-family: var(--font-body);
    font-size: clamp(0.85rem, 1.4vw, 1.1rem);
    color: var(--deep-well);
    max-width: 28ch;
    margin: 0 auto 1.5rem;
    opacity: 0.8;
}

.arena-subtitle-right {
    font-family: var(--font-body);
    font-size: clamp(0.85rem, 1.4vw, 1.1rem);
    color: var(--chalk-dust);
    max-width: 28ch;
    margin: 0 auto 1.5rem;
    opacity: 0.8;
}

.motif-chain,
.motif-gate {
    opacity: 0.5;
    margin-top: 1rem;
}

/* --- Diagonal Divider --- */
.diagonal-divider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    pointer-events: none;
}

.diagonal-line-svg {
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.diagonal-line-svg.drawn {
    opacity: 1;
}

#slash-line {
    stroke-dasharray: 142;
    stroke-dashoffset: 142;
    transition: stroke-dashoffset 1.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

#slash-line.animate {
    stroke-dashoffset: 0;
}

/* --- Arena Question --- */
.arena-question {
    position: absolute;
    bottom: 8vh;
    left: 50%;
    transform: translateX(-50%);
    z-index: 4;
    font-family: var(--font-body);
    font-style: italic;
    font-size: 1.25rem;
    color: var(--rust-conviction);
    text-align: center;
    opacity: 0;
    transition: opacity 0.6s ease 2.8s;
    white-space: nowrap;
}

.arena-question.visible {
    opacity: 1;
}

/* --- Verdict Gap --- */
.verdict-gap {
    position: relative;
    height: 30vh;
    background: var(--ink-obsidian);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.verdict-watermark {
    font-family: var(--font-display);
    font-size: clamp(3rem, 10vw, 10rem);
    color: var(--chalk-dust);
    opacity: 0.08;
    white-space: nowrap;
    letter-spacing: 0.05em;
    user-select: none;
    will-change: transform;
}

.verdict-gap-final {
    height: 20vh;
}

/* --- Thesis Corridor --- */
.thesis-corridor {
    background: var(--parchment-bone);
    padding: clamp(4rem, 8vh, 8rem) 0;
}

.thesis-corridor.corridor-dark {
    background: var(--ink-obsidian);
}

.thesis-corridor.corridor-dark .corridor-title {
    color: var(--parchment-bone);
}

.thesis-corridor.corridor-dark .corridor-paragraph {
    color: var(--chalk-dust);
}

.thesis-corridor.corridor-dark .tension-line {
    border-color: rgba(142, 127, 114, 0.4);
}

.thesis-corridor.corridor-dark .pull-quote p {
    color: var(--chalk-dust);
}

.thesis-corridor.corridor-dark .quote-attribution {
    color: var(--tarnished-brass);
}

.corridor-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 5rem);
    letter-spacing: 0.05em;
    color: var(--ink-obsidian);
    text-align: center;
    margin-bottom: 3rem;
}

.corridor-body {
    max-width: 42em;
    margin: 0 auto;
    padding: 0 max(2rem, 15vw);
}

.corridor-paragraph {
    color: var(--deep-well);
    margin-bottom: 0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.corridor-paragraph.visible {
    opacity: 1;
    transform: translateY(0);
}

.tension-line {
    border: none;
    border-top: 0.5px solid rgba(142, 127, 114, 0.4);
    margin: 2rem 0;
    animation: vibrate 4s ease-in-out infinite;
}

@keyframes vibrate {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(0.3px); }
}

/* --- Pull Quotes --- */
.pull-quote {
    position: relative;
    margin: 2.5rem 0;
    padding-left: 2rem;
}

.quote-slash {
    position: absolute;
    left: 0;
    top: -0.2em;
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--ochre-liberty);
    line-height: 1;
    transform: rotate(-15deg);
}

.pull-quote p {
    font-family: var(--font-ui);
    font-weight: 500;
    font-size: clamp(1.25rem, 3vw, 2rem);
    letter-spacing: 0.02em;
    color: var(--deep-well);
    line-height: 1.5;
    position: relative;
}

.pull-quote p::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--rust-conviction);
    transition: width 0.8s ease-out;
}

.pull-quote.visible p::after {
    width: 100%;
}

.quote-attribution {
    display: block;
    margin-top: 1rem;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    color: var(--weathered-bronze);
    letter-spacing: 0.02em;
}

/* --- Comparison Panels --- */
.comparison-section {
    background: var(--parchment-bone);
    padding: clamp(4rem, 8vh, 8rem) 2rem;
}

.comparison-heading {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 5rem);
    letter-spacing: 0.05em;
    color: var(--ink-obsidian);
    text-align: center;
    margin-bottom: 3rem;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 0;
    max-width: 1200px;
    margin: 0 auto;
}

.bento-cell {
    border: 2px solid var(--ink-obsidian);
    padding: 2rem;
    position: relative;
    overflow: hidden;
    background: var(--parchment-bone);
    transition: background 0.3s ease;
}

.bento-cell:hover {
    background: rgba(244, 240, 235, 0.7);
}

/* Border draw animation */
.bento-cell::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px solid var(--ochre-liberty);
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.bento-cell:hover::before {
    opacity: 1;
    transform: scale(1);
}

.thinker-stamp {
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
    display: inline-block;
}

.thinker-stamp svg {
    display: block;
}

.thinker-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.05em;
    color: var(--ink-obsidian);
    margin-bottom: 0.25rem;
}

.thinker-position {
    font-family: var(--font-ui);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--rust-conviction);
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
}

.thinker-argument {
    font-family: var(--font-body);
    font-size: clamp(0.9rem, 1.4vw, 1.05rem);
    color: var(--deep-well);
    line-height: 1.65;
    margin-bottom: 1rem;
}

.thinker-data {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--tarnished-brass);
}

/* --- Closing Section --- */
.closing-section {
    background: var(--ink-obsidian);
    padding: clamp(4rem, 8vh, 8rem) 2rem;
}

.closing-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1100px;
    margin: 0 auto;
    align-items: center;
}

.closing-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 4rem);
    letter-spacing: 0.05em;
    color: var(--parchment-bone);
    margin-bottom: 1.5rem;
}

.closing-text {
    font-family: var(--font-body);
    color: var(--chalk-dust);
    line-height: 1.72;
}

.closing-provocation {
    font-family: var(--font-ui);
    font-weight: 500;
    font-size: clamp(1.1rem, 2.5vw, 1.6rem);
    color: var(--ochre-liberty);
    line-height: 1.5;
    letter-spacing: 0.02em;
    margin-bottom: 2rem;
}

.closing-motifs {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    opacity: 0.5;
}

.closing-vs {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--ochre-liberty);
    transform: rotate(-15deg);
}

/* --- Scroll Animations --- */
.corridor-paragraph,
.pull-quote,
.bento-cell {
    opacity: 0;
    transform: translateY(20px);
}

.corridor-paragraph.visible,
.pull-quote.visible,
.bento-cell.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.bento-cell.visible {
    transition-duration: 0.5s;
}

/* Stagger delays for bento cells */
.bento-cell:nth-child(1) { transition-delay: 0s; }
.bento-cell:nth-child(2) { transition-delay: 0.15s; }
.bento-cell:nth-child(3) { transition-delay: 0.3s; }
.bento-cell:nth-child(4) { transition-delay: 0.45s; }
.bento-cell:nth-child(5) { transition-delay: 0.6s; }
.bento-cell:nth-child(6) { transition-delay: 0.75s; }

/* --- Verdict Watermark zoom --- */
.verdict-watermark {
    transition: transform 8s ease-out;
}

.verdict-gap.in-view .verdict-watermark {
    transform: scale(1.05);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .arena-left-content,
    .arena-right-content {
        max-width: 80vw;
    }

    .arena-left.revealed .arena-left-content {
        transform: translateX(-5%);
    }

    .arena-left.revealed ~ .arena-right .arena-right-content {
        transform: translateX(5%);
    }

    .corridor-body {
        padding: 0 max(1.5rem, 5vw);
    }

    .closing-split {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .bento-grid {
        grid-template-columns: 1fr;
    }

    .arena-question {
        white-space: normal;
        width: 80%;
    }
}

@media (max-width: 480px) {
    .arena-title {
        font-size: clamp(2rem, 10vw, 3.5rem);
    }

    .nav-bar {
        padding: 0.75rem 1rem;
    }
}

/* --- Prefers reduced motion --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .tension-line {
        animation: none;
    }

    .arena-left-content,
    .arena-right-content {
        transform: none !important;
    }

    .corridor-paragraph,
    .pull-quote,
    .bento-cell {
        opacity: 1;
        transform: none;
    }
}