/* ==========================================================================
   NEXA STUDIO — The Grid Machine
   Swiss Design System with Interactive Grid
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
    /* Colors — No purple, no blue, no gradients */
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-off-white: #F8F8F8;
    --color-gray-100: #F0F0F0;
    --color-gray-200: #E0E0E0;
    --color-gray-300: #C0C0C0;
    --color-gray-500: #808080;
    --color-gray-700: #404040;
    --color-gray-900: #1A1A1A;

    /* Accent — Warm red/vermillion */
    --color-accent: #E63946;

    /* Grid System */
    --grid-columns: 12;
    --grid-gutter: 24px;
    --grid-margin: 48px;
    --grid-line-color: rgba(0, 0, 0, 0.06);

    /* Typography Scale */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;
    --font-size-5xl: 5rem;
    --font-size-6xl: 7rem;

    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;
    --space-9: 96px;
    --space-10: 128px;

    /* Animation */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --duration-fast: 200ms;
    --duration-normal: 400ms;
    --duration-slow: 800ms;
}

@media (max-width: 768px) {
    :root {
        --grid-margin: 24px;
        --grid-gutter: 16px;
        --font-size-5xl: 3rem;
        --font-size-6xl: 4rem;
    }
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-black);
    background-color: var(--color-white);
    overflow-x: hidden;
    cursor: none;
}

/* --------------------------------------------------------------------------
   Custom Cursor
   -------------------------------------------------------------------------- */
.cursor {
    position: fixed;
    top: -50px;
    left: -50px;
    width: 100px;
    height: 100px;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
}

.cursor-dot {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100px;
    height: 100px;
    background-color: var(--color-white);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: transform 0.15s var(--ease-out-expo);
}

.cursor-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100px;
    height: 100px;
    border: 1px solid var(--color-white);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: transform 0.3s var(--ease-out-expo), opacity 0.3s;
    opacity: 0.5;
}

.cursor.is-hovering .cursor-dot {
    transform: translate(-50%, -50%) scale(1);
}

.cursor.is-hovering .cursor-ring {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 0.8;
}

.cursor.is-clicking .cursor-dot {
    transform: translate(-50%, -50%) scale(0.5);
}

.cursor.is-clicking .cursor-ring {
    transform: translate(-50%, -50%) scale(0.8);
}

/* Hide cursor on touch devices and inside modals */
@media (hover: none) and (pointer: coarse) {
    .cursor {
        display: none;
    }

    body {
        cursor: auto;
    }
}

/* Reset cursor for interactive elements */
a, button, .service-card, .email-canvas, [data-modal], .nav-link, .service-list li {
    cursor: none;
}

/* --------------------------------------------------------------------------
   Custom Scrollbar
   -------------------------------------------------------------------------- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background-color: var(--color-gray-100);
}

::-webkit-scrollbar-thumb {
    background-color: var(--color-gray-300);
    border-radius: 0;
    transition: background-color 0.2s;
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-gray-500);
}

::-webkit-scrollbar-thumb:active {
    background-color: var(--color-accent);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-gray-300) var(--color-gray-100);
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

em {
    font-style: italic;
}

/* --------------------------------------------------------------------------
   Grid Overlay — Visible Swiss Grid
   -------------------------------------------------------------------------- */

/* Vertical lines container */
.grid-overlay {
    position: fixed;
    top: 0;
    left: var(--grid-margin);
    right: var(--grid-margin);
    bottom: 0;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--grid-gutter);
    pointer-events: none;
    z-index: 0;
}

/* Horizontal lines container */
.grid-overlay-h {
    position: fixed;
    top: var(--grid-margin);
    left: 0;
    right: 0;
    bottom: var(--grid-margin);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    pointer-events: none;
    z-index: 0;
}

/* Vertical lines */
.grid-line--v {
    border-left: 1px solid var(--grid-line-color);
    height: 0;
    transition: height 1.3s var(--ease-out-expo);
}

.grid-line--v:last-child {
    border-right: 1px solid var(--grid-line-color);
}

.grid-line--v.is-built {
    height: 100%;
}

/* Staggered delays for vertical lines */
.grid-line--v:nth-child(1) { transition-delay: 0ms; }
.grid-line--v:nth-child(2) { transition-delay: 80ms; }
.grid-line--v:nth-child(3) { transition-delay: 160ms; }
.grid-line--v:nth-child(4) { transition-delay: 240ms; }
.grid-line--v:nth-child(5) { transition-delay: 320ms; }
.grid-line--v:nth-child(6) { transition-delay: 400ms; }
.grid-line--v:nth-child(7) { transition-delay: 480ms; }
.grid-line--v:nth-child(8) { transition-delay: 560ms; }
.grid-line--v:nth-child(9) { transition-delay: 640ms; }
.grid-line--v:nth-child(10) { transition-delay: 720ms; }
.grid-line--v:nth-child(11) { transition-delay: 800ms; }
.grid-line--v:nth-child(12) { transition-delay: 880ms; }

/* Horizontal lines */
.grid-line--h {
    border-top: 1px solid var(--grid-line-color);
    width: 0;
    height: 1px;
    transition: width 1.3s var(--ease-out-expo);
}

.grid-line--h.is-built {
    width: 100%;
}

/* Staggered delays for horizontal lines (start after vertical begin) */
.grid-line--h:nth-child(1) { transition-delay: 200ms; }
.grid-line--h:nth-child(2) { transition-delay: 280ms; }
.grid-line--h:nth-child(3) { transition-delay: 360ms; }
.grid-line--h:nth-child(4) { transition-delay: 440ms; }
.grid-line--h:nth-child(5) { transition-delay: 520ms; }
.grid-line--h:nth-child(6) { transition-delay: 600ms; }
.grid-line--h:nth-child(7) { transition-delay: 680ms; }
.grid-line--h:nth-child(8) { transition-delay: 760ms; }
.grid-line--h:nth-child(9) { transition-delay: 840ms; }
.grid-line--h:nth-child(10) { transition-delay: 920ms; }

/* Grid pulse animation - accent signal traveling through lines */
.grid-line--v.is-pulsing {
    position: relative;
    overflow: visible;
}

.grid-line--v.is-pulsing::after {
    content: '';
    position: absolute;
    top: -10%;
    left: -1px;
    width: 3px;
    height: 20%;
    background-color: var(--color-accent);
    animation: pulseV 1.5s var(--ease-out-expo) forwards;
}

@keyframes pulseV {
    0% {
        top: -20%;
        opacity: 1;
    }
    100% {
        top: 100%;
        opacity: 0;
    }
}

.grid-line--h.is-pulsing {
    position: relative;
    overflow: visible;
}

.grid-line--h.is-pulsing::after {
    content: '';
    position: absolute;
    left: -10%;
    top: -1px;
    width: 20%;
    height: 3px;
    background-color: var(--color-accent);
    animation: pulseH 1.5s var(--ease-out-expo) forwards;
}

@keyframes pulseH {
    0% {
        left: -20%;
        opacity: 1;
    }
    100% {
        left: 100%;
        opacity: 0;
    }
}

@media (max-width: 768px) {
    .grid-overlay {
        grid-template-columns: repeat(4, 1fr);
    }

    .grid-line--v:nth-child(n+5) {
        display: none;
    }

    .grid-line--h:nth-child(n+6) {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   Container
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--grid-margin);
    position: relative;
    z-index: 1;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
.accent {
    color: var(--color-accent);
}

.section-header {
    display: flex;
    align-items: baseline;
    gap: var(--space-5);
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-5);
    border-bottom: 1px solid var(--color-black);
}

.section-number {
    font-size: var(--font-size-sm);
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-gray-500);
}

.section-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.large-text {
    font-size: var(--font-size-3xl);
    font-weight: 600;
    line-height: 1.2;
}

@media (max-width: 768px) {
    .large-text {
        font-size: var(--font-size-2xl);
    }
}

/* --------------------------------------------------------------------------
   Grid Item Animation
   -------------------------------------------------------------------------- */
[data-grid-item] {
    opacity: 0;
    transform: translateY(40px);
    transition:
        opacity 1.3s var(--ease-out-expo),
        transform 1.3s var(--ease-out-expo);
}

[data-grid-item].is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays */
[data-grid-item][data-delay="1"] { transition-delay: 150ms; }
[data-grid-item][data-delay="2"] { transition-delay: 300ms; }
[data-grid-item][data-delay="3"] { transition-delay: 450ms; }

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-5) 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--grid-line-color);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--grid-margin);
}

.nav-logo {
    font-size: var(--font-size-lg);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: var(--space-7);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    position: relative;
    padding: var(--space-2) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--duration-normal) var(--ease-out-expo);
}

.nav-link:hover::after {
    width: 100%;
}

@media (max-width: 768px) {
    .nav-links {
        gap: var(--space-5);
    }

    .nav-link {
        font-size: var(--font-size-xs);
    }

    .nav-link--desktop {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-10) 0;
    position: relative;
}

.hero-content {
    max-width: 900px;
}

.hero-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--color-gray-500);
    margin-bottom: var(--space-6);
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 800;
    line-height: 0.95;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-7);
}

.title-line {
    display: block;
}

/* Rotating word animation */
.rotating-word {
    display: inline-block;
    position: relative;
    vertical-align: bottom;
    overflow: hidden;
    padding-bottom: 0.25em;
    margin-bottom: -0.25em;
    padding-left: 0.2em;
    margin-left: -0.2em;
}

.rotating-word em,
.rotating-word .accent {
    display: inline-block;
    transition:
        transform 0.6s var(--ease-out-expo),
        opacity 0.6s var(--ease-out-expo);
}

.rotating-word.is-animating em,
.rotating-word.is-animating .accent {
    transform: translateY(-100%);
    opacity: 0;
}

.rotating-word.is-entering em,
.rotating-word.is-entering .accent {
    transform: translateY(100%);
    opacity: 0;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    font-weight: 400;
    color: var(--color-gray-700);
    max-width: 500px;
    line-height: 1.7;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-8);
    left: var(--grid-margin);
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.scroll-text {
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-gray-500);
}

.scroll-line {
    width: 60px;
    height: 1px;
    background-color: var(--color-gray-300);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--color-accent);
    animation: scrollLine 2s var(--ease-out-expo) infinite;
}

@keyframes scrollLine {
    0% { left: -100%; }
    50% { left: 0; }
    100% { left: 100%; }
}

@media (max-width: 768px) {
    .hero {
        padding-top: 120px;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-scroll {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   Services Section
   -------------------------------------------------------------------------- */
.services {
    padding: var(--space-10) 0;
    background-color: var(--color-off-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--grid-gutter);
}

.service-card {
    background-color: var(--color-white);
    padding: var(--space-7);
    border: 1px solid var(--color-gray-200);
    transition:
        transform var(--duration-normal) var(--ease-out-expo),
        border-color var(--duration-fast);
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-black);
}

.service-index {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--space-5);
    font-family: 'Courier New', monospace;
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    letter-spacing: -0.01em;
}

.service-desc {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    margin-bottom: var(--space-5);
    line-height: 1.7;
}

.service-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-4);
}

.service-list li {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-gray-500);
    padding: var(--space-1) var(--space-3);
    background-color: var(--color-gray-100);
    transition:
        background-color var(--duration-fast),
        color var(--duration-fast),
        transform var(--duration-fast);
}

.service-list li:hover {
    background-color: var(--color-black);
    color: var(--color-white);
    transform: translateX(4px);
}

.service-card--cta {
    background-color: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}

.service-card--cta .service-index {
    color: var(--color-accent);
}

.service-card--cta .service-desc {
    color: var(--color-gray-300);
}

.service-cta {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-white);
    background-color: var(--color-accent);
    padding: var(--space-3) var(--space-5);
    margin-top: var(--space-5);
    border: 2px solid var(--color-accent);
    transition:
        background-color var(--duration-fast),
        color var(--duration-fast),
        transform var(--duration-fast);
}

.service-cta:hover {
    background-color: transparent;
    color: var(--color-accent);
    transform: translateY(-2px);
}

@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card {
        padding: var(--space-6);
    }
}

/* --------------------------------------------------------------------------
   Approach Section
   -------------------------------------------------------------------------- */
.approach {
    padding: var(--space-10) 0;
}

.approach-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-9);
    align-items: start;
}

.approach-statement {
    position: sticky;
    top: 120px;
}

.approach-grid {
    display: grid;
    gap: var(--space-7);
}

.approach-item {
    padding: var(--space-6);
    border-left: 3px solid var(--color-gray-200);
    transition: border-color var(--duration-normal);
}

.approach-item:hover {
    border-color: var(--color-accent);
}

.approach-number {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-accent);
    font-family: 'Courier New', monospace;
    display: block;
    margin-bottom: var(--space-3);
}

.approach-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.approach-item p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .approach-content {
        grid-template-columns: 1fr;
        gap: var(--space-7);
    }

    .approach-statement {
        position: relative;
        top: 0;
    }
}

/* --------------------------------------------------------------------------
   Stats Section
   -------------------------------------------------------------------------- */
.stats {
    padding: var(--space-9) 0;
    background-color: var(--color-black);
    color: var(--color-white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--grid-gutter);
    text-align: center;
}

.stat-item {
    padding: var(--space-6);
}

.stat-value {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    letter-spacing: -0.03em;
    display: block;
    margin-bottom: var(--space-2);
}

.stat-value::after {
    content: '+';
    color: var(--color-accent);
}

.stat-label {
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gray-500);
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-value {
        font-size: var(--font-size-3xl);
    }
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact {
    padding: var(--space-10) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-9);
    align-items: start;
}

.contact-lead {
    font-size: var(--font-size-lg);
    color: var(--color-gray-500);
    margin-bottom: var(--space-4);
}

.contact-email {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    display: inline-block;
    position: relative;
}

.contact-email::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--duration-normal) var(--ease-out-expo);
}

.contact-email:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.contact-details {
    display: grid;
    gap: var(--space-6);
}

.contact-block {
    padding-left: var(--space-5);
    border-left: 2px solid var(--color-gray-200);
}

.contact-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gray-500);
    display: block;
    margin-bottom: var(--space-2);
}

.contact-block p {
    font-size: var(--font-size-base);
    font-weight: 500;
}

@media (max-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-7);
    }

    .contact-email {
        font-size: var(--font-size-2xl);
    }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    padding: var(--space-8) 0;
    border-top: 1px solid var(--color-gray-200);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-logo {
    font-size: var(--font-size-lg);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.footer-tagline {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.footer-meta {
    display: flex;
    gap: var(--space-6);
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

@media (max-width: 768px) {
    .footer-inner {
        flex-direction: column;
        gap: var(--space-6);
        text-align: center;
    }

    .footer-meta {
        flex-direction: column;
        gap: var(--space-2);
    }
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --------------------------------------------------------------------------
   Email Canvas (Obfuscated)
   -------------------------------------------------------------------------- */
.email-canvas-wrap {
    position: relative;
    display: inline-block;
}

.email-canvas {
    cursor: none;
    display: block;
    transition: opacity var(--duration-fast);
}

.email-canvas:hover {
    opacity: 0.7;
}

.email-copied {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--color-black);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: var(--space-2) var(--space-4);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-fast);
}

.email-copied.is-visible {
    opacity: 1;
}

/* --------------------------------------------------------------------------
   Footer Links (Buttons styled as links)
   -------------------------------------------------------------------------- */
.footer-link {
    background: none;
    border: none;
    font-family: inherit;
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    cursor: pointer;
    padding: 0;
    transition: color var(--duration-fast);
}

.footer-link:hover {
    color: var(--color-black);
}

/* --------------------------------------------------------------------------
   Modal
   -------------------------------------------------------------------------- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-5);
    opacity: 0;
    visibility: hidden;
    transition:
        opacity var(--duration-normal) var(--ease-out-expo),
        visibility var(--duration-normal);
}

.modal.is-open {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    cursor: pointer;
}

.modal-content {
    position: relative;
    background-color: var(--color-white);
    width: 100%;
    max-width: 700px;
    max-height: 85vh;
    overflow-y: auto;
    transform: translateY(20px);
    transition: transform var(--duration-normal) var(--ease-out-expo);
}

.modal.is-open .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6);
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    background-color: var(--color-white);
    z-index: 1;
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    line-height: 1;
    cursor: pointer;
    padding: var(--space-2);
    color: var(--color-gray-500);
    transition: color var(--duration-fast);
}

.modal-close:hover {
    color: var(--color-black);
}

.modal-body {
    padding: var(--space-6);
}

.modal-body h3 {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-top: var(--space-6);
    margin-bottom: var(--space-3);
}

.modal-body h3:first-of-type {
    margin-top: 0;
}

.modal-body p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.modal-body ul {
    margin-bottom: var(--space-4);
    padding-left: var(--space-5);
}

.modal-body li {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    line-height: 1.7;
    margin-bottom: var(--space-2);
    position: relative;
}

.modal-body li::before {
    content: '—';
    position: absolute;
    left: calc(-1 * var(--space-5));
    color: var(--color-gray-300);
}

.modal-date {
    font-size: var(--font-size-xs) !important;
    color: var(--color-gray-500) !important;
    margin-bottom: var(--space-6) !important;
}

.modal-legal {
    font-size: var(--font-size-xs) !important;
    color: var(--color-gray-500) !important;
    margin-top: var(--space-6) !important;
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-gray-200);
}

/* Lock body scroll when modal is open */
body.modal-open {
    overflow: hidden;
}

/* Modal scrollbar */
.modal-content::-webkit-scrollbar {
    width: 6px;
}

.modal-content::-webkit-scrollbar-track {
    background-color: var(--color-gray-100);
}

.modal-content::-webkit-scrollbar-thumb {
    background-color: var(--color-gray-300);
}