/* =============================================
   JOAN BEAULAYGUE — PORTFOLIO
   Style CSS principal
   ============================================= */

/* ─── RESET & BASE ─── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: auto; /* Lenis gère le smooth scroll */
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background-color: var(--black);
    color: var(--white);
    overflow-x: hidden;
}

/* ─── CSS VARIABLES ─── */
:root {
    /* Colors */
    --black: #000000;
    --white: #FFFFFF;
    --red: #E10600;
    --red-dark: #B80500;
    --red-light: #FF2D2D;
    --gray-100: #F5F5F5;
    --gray-200: #E0E0E0;
    --gray-300: #BDBDBD;
    --gray-500: #6B6B6B;
    --gray-700: #2A2A2A;
    --gray-800: #1A1A1A;
    --gray-900: #0D0D0D;

    /* Typography */
    --font-heading: 'Syne', sans-serif;
    --font-body: 'Space Grotesk', sans-serif;

    /* Font sizes (fluid) */
    --fs-hero: clamp(3.5rem, 9vw, 10rem);
    --fs-h1: clamp(2.5rem, 6vw, 7rem);
    --fs-h2: clamp(2rem, 4.5vw, 5rem);
    --fs-h3: clamp(1.3rem, 2vw, 2rem);
    --fs-body: clamp(0.9rem, 1.1vw, 1.125rem);
    --fs-small: clamp(0.75rem, 0.9vw, 0.875rem);
    --fs-tag: clamp(0.65rem, 0.75vw, 0.75rem);

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
    --space-2xl: 12rem;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --transition: 0.4s var(--ease-out);
    --transition-fast: 0.2s var(--ease-out);
    --transition-slow: 0.8s var(--ease-out);

    /* Layout */
    --container-max: 1400px;
    --container-padding: clamp(1.5rem, 4vw, 4rem);
    --nav-height: 80px;
}

/* ─── UTILITIES ─── */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.text-red {
    color: var(--red);
}

.section {
    padding: var(--space-xl) 0;
    position: relative;
}

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

button {
    cursor: pointer;
}

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

ul, ol {
    list-style: none;
}

::selection {
    background-color: var(--red);
    color: var(--white);
}

/* ─── SECTION HEADER ─── */
.section__header {
    margin-bottom: var(--space-lg);
}

.section__number {
    display: block;
    font-family: var(--font-body);
    font-size: var(--fs-small);
    font-weight: 300;
    color: var(--red);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.section__title {
    font-family: var(--font-heading);
    font-size: var(--fs-h2);
    font-weight: 800;
    line-height: 1.15;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

.section__title--large {
    font-size: var(--fs-h1);
}

.section__subtitle {
    font-family: var(--font-body);
    font-size: var(--fs-body);
    font-weight: 300;
    color: var(--gray-300);
    margin-top: var(--space-sm);
    max-width: 50ch;
}

/* =============================================
   LOADER
   ============================================= */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.6s var(--ease-out), visibility 0.6s;
}

.loader.is-loaded {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.loader__logo {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    color: var(--red);
    letter-spacing: 0.1em;
    opacity: 0;
    animation: loaderFadeIn 0.6s var(--ease-out) forwards;
}

.loader__bar {
    width: 200px;
    height: 2px;
    background-color: var(--gray-800);
    border-radius: 2px;
    overflow: hidden;
    opacity: 0;
    animation: loaderFadeIn 0.6s var(--ease-out) 0.3s forwards;
}

.loader__bar-fill {
    width: 0%;
    height: 100%;
    background-color: var(--red);
    border-radius: 2px;
    transition: width 0.1s linear;
}

.loader__percent {
    font-family: var(--font-body);
    font-size: var(--fs-small);
    font-weight: 300;
    color: var(--gray-500);
    letter-spacing: 0.1em;
    opacity: 0;
    animation: loaderFadeIn 0.6s var(--ease-out) 0.3s forwards;
}

@keyframes loaderFadeIn {
    to { opacity: 1; }
}

/* =============================================
   CURSOR
   ============================================= */
@media (hover: hover) and (pointer: fine) {
    body {
        cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='22'%3E%3Cpath d='M1 1L1 17L5 13L8 19.5L10.5 18.5L7.5 12L13 12Z' fill='%23FFFFFF' stroke='%23000000' stroke-width='1.2'/%3E%3C/svg%3E") 1 1, auto;
    }

    a, button, [role="button"], .project-card, .skills__tag, .timeline__tag, .about__stat {
        cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='22'%3E%3Cpath d='M1 1L1 17L5 13L8 19.5L10.5 18.5L7.5 12L13 12Z' fill='%23E10600' stroke='%23000000' stroke-width='1.2'/%3E%3C/svg%3E") 1 1, pointer;
    }
}

/* =============================================
   GRAIN OVERLAY (lightweight — CSS only, no SVG filter)
   ============================================= */
.grain {
    position: fixed;
    inset: 0;
    z-index: 9997;
    pointer-events: none;
    opacity: 0.04;
    background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIAAAAyCAYAAAAeP4ixAAAABGdBTUEAALGPC/xhBQAAASlJREFUaEPtk0EKwzAMBPv/T7c3X0oPwdhaSWucY5hDSGYXc/r8+vn7/vv++s7v38+PP89z3u/f9+Pv69e/h3+v+z7+3o/Px+fx+Xl+nm+f+/PzfH4+P5/P8/U8P8/n+Xqer+fneb6en88/P+fn+fk+n88/n+fz/Hyen+fn+Xo+n8/P5/l6Pp/Pz+f5ej7/fD7Pz+f5er6e5+f5er6e5/P8fJ6v5+t5/vl5Ps/X8/k8P8/X83w+z9fzer6e5+f5ep7P8/N8Pa/n63k+z9fz9Tyf5+t5PZ/P83m+nufzfD2fz/N5vp7X8/k8n+fr+Xqez/P1vJ6v5/k8X8/r+Xyen+fref75PJ/n6/l6ns/z83w9z+fzfD1fz/N5vp7P5+cLlvHimDkRqlcAAAAASUVORK5CYII=");
    background-repeat: repeat;
    background-size: 100px 100px;
    mix-blend-mode: overlay;
}

/* =============================================
   NAVIGATION
   ============================================= */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--container-padding);
    z-index: 1000;
    transition: background-color 0.4s, backdrop-filter 0.4s;
}

.nav.is-scrolled {
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.nav__logo img {
    width: 40px;
    height: auto;
    transition: transform var(--transition);
}

.nav__logo:hover img {
    transform: scale(1.1);
}

.nav__menu {
    display: flex;
    align-items: center;
    gap: clamp(1.5rem, 3vw, 3rem);
}

.nav__link {
    font-family: var(--font-body);
    font-size: var(--fs-small);
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    position: relative;
    padding: 0.25em 0;
    overflow: hidden;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--red);
    transition: width var(--transition);
}

.nav__link:hover::after,
.nav__link.is-active::after {
    width: 100%;
}

.nav__link.is-active {
    color: var(--red);
}

/* Burger */
.nav__burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    padding: 0;
    z-index: 1001;
}

.nav__burger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--white);
    transition: transform var(--transition), opacity var(--transition);
    transform-origin: center;
}

.nav__burger.is-active span:first-child {
    transform: rotate(45deg) translate(3px, 3px);
}

.nav__burger.is-active span:last-child {
    transform: rotate(-45deg) translate(3px, -3px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--black);
    z-index: 999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s var(--ease-out), visibility 0.5s;
}

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

.mobile-menu__nav {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
}

.mobile-menu__link {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    transition: color var(--transition-fast);
    opacity: 0;
    transform: translateY(30px);
}

.mobile-menu.is-open .mobile-menu__link {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out), color 0.2s;
}

.mobile-menu.is-open .mobile-menu__link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu.is-open .mobile-menu__link:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu.is-open .mobile-menu__link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu.is-open .mobile-menu__link:nth-child(4) { transition-delay: 0.25s; }
.mobile-menu.is-open .mobile-menu__link:nth-child(5) { transition-delay: 0.3s; }

.mobile-menu__link span {
    display: block;
    font-family: var(--font-body);
    font-size: var(--fs-tag);
    font-weight: 300;
    color: var(--red);
    letter-spacing: 0.1em;
    margin-bottom: 0.25rem;
}

.mobile-menu__link:hover {
    color: var(--red);
}

.mobile-menu__footer {
    position: absolute;
    bottom: 3rem;
    display: flex;
    gap: 2rem;
}

.mobile-menu__footer a {
    font-family: var(--font-body);
    font-size: var(--fs-small);
    font-weight: 300;
    color: var(--gray-500);
    letter-spacing: 0.05em;
    transition: color var(--transition-fast);
}

.mobile-menu__footer a:hover {
    color: var(--red);
}

/* =============================================
   HERO SECTION — Full red, logo-centric
   ============================================= */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: clamp(2.2rem, 4.5vw, 4.5rem);
    padding: calc(var(--nav-height) + 5rem) 2rem 7rem;
    overflow: clip;
    overflow-clip-margin: 10px;
    background-color: var(--red);
}

/* Dark gradient at top for nav readability */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.2), transparent);
    z-index: 1;
    pointer-events: none;
}

/* --- Tag --- */
.hero__tag {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--font-body);
    font-size: var(--fs-tag);
    font-weight: 400;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.6);
    z-index: 2;
}

.hero__tag-line {
    display: inline-block;
    width: 30px;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.4);
}

/* --- Logo --- */
.hero__logo-wrap {
    position: relative;
    z-index: 2;
    margin-bottom: clamp(1rem, 3vw, 2.5rem);
}

.hero__logo {
    width: clamp(160px, 22vw, 320px);
    height: auto;
    filter: drop-shadow(0 15px 50px rgba(0, 0, 0, 0.3));
}

/* --- Name --- */
.hero__name {
    position: relative;
    z-index: 2;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: clamp(1.8rem, 4.5vw, 4.5rem);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    text-align: center;
    color: var(--white);
    line-height: 1.1;
    padding: 0 0.1em;
}

/* --- Subtitle --- */
.hero__subtitle {
    position: relative;
    z-index: 2;
    font-family: var(--font-body);
    font-size: clamp(0.7rem, 1vw, 0.95rem);
    font-weight: 300;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.65);
    text-align: center;
    max-width: 90vw;
}

/* --- CTA --- */
.hero__cta {
    position: relative;
    z-index: 2;
    margin-top: var(--space-sm);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-body);
    font-size: var(--fs-small);
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 1rem 2rem;
    border: none;
    border-radius: 0;
    transition: color var(--transition), background-color var(--transition), border-color var(--transition), transform var(--transition);
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background-color: var(--red);
    color: var(--white);
}

.btn--primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    transition: left 0.4s var(--ease-out);
    z-index: 0;
}

.btn--primary:hover::before {
    left: 0;
}

.btn--primary:hover {
    color: var(--black);
}

.btn__text,
.btn__icon {
    position: relative;
    z-index: 1;
}

.btn__icon {
    transition: transform var(--transition);
}

.btn:hover .btn__icon {
    transform: translateX(4px);
}

.btn--ghost {
    background: transparent;
    color: var(--white);
    border: 1px solid var(--gray-700);
}

.btn--ghost:hover {
    border-color: var(--red);
    color: var(--red);
}

.btn--white {
    background-color: var(--white);
    color: var(--red);
}

.btn--white::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--black);
    transition: left 0.4s var(--ease-out);
    z-index: 0;
}

.btn--white:hover::before {
    left: 0;
}

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

/* --- Scroll indicator --- */
.hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    z-index: 3;
}

.hero__scroll-text {
    font-family: var(--font-body);
    font-size: var(--fs-tag);
    font-weight: 300;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
}

.hero__scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--white), transparent);
    animation: scrollLine 2s var(--ease-in-out) infinite;
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    50.01% { transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* =============================================
   MARQUEE
   ============================================= */
.marquee {
    padding: var(--space-md) 0;
    overflow: hidden;
    border-top: 1px solid var(--gray-800);
    border-bottom: 1px solid var(--gray-800);
}

.marquee__track {
    display: flex;
    gap: 2rem;
    white-space: nowrap;
    will-change: transform;
    animation: marquee 30s linear infinite;
}

.marquee__track span {
    flex-shrink: 0;
    font-family: var(--font-heading);
    font-size: clamp(1rem, 1.8vw, 1.5rem);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--gray-700);
    transition: color 0.2s;
}

.marquee:hover .marquee__track span {
    color: var(--gray-500);
}

@keyframes marquee {
    0% { transform: translate3d(0, 0, 0); }
    100% { transform: translate3d(-50%, 0, 0); }
}

/* =============================================
   À PROPOS
   ============================================= */
.about__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-xl);
    align-items: start;
}

.about__text p {
    font-family: var(--font-body);
    font-size: var(--fs-body);
    font-weight: 300;
    line-height: 1.8;
    color: var(--gray-200);
    margin-bottom: var(--space-md);
}

.about__text p strong {
    font-weight: 500;
    color: var(--white);
}

.about__intro {
    font-size: clamp(1.1rem, 1.5vw, 1.4rem) !important;
    font-weight: 400 !important;
    line-height: 1.7 !important;
}

.about__stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    position: sticky;
    top: calc(var(--nav-height) + 2rem);
}

.about__stat {
    padding: var(--space-md);
    border: 1px solid var(--gray-800);
    text-align: center;
    transition: border-color var(--transition), transform var(--transition);
}

.about__stat:hover {
    border-color: var(--red);
    transform: translateY(-4px);
}

.about__stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3vw, 3rem);
    font-weight: 800;
    color: var(--red);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.about__stat-label {
    font-family: var(--font-body);
    font-size: var(--fs-tag);
    font-weight: 300;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gray-500);
}

/* =============================================
   COMPÉTENCES
   ============================================= */
.skills {
    background-color: var(--gray-900);
}

.skills__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.skills__category {
    padding: var(--space-lg);
    border: 1px solid var(--gray-800);
    transition: border-color var(--transition);
}

.skills__category:hover {
    border-color: var(--red);
}

.skills__category-title {
    font-family: var(--font-heading);
    font-size: var(--fs-h3);
    font-weight: 700;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.skills__category-icon {
    color: var(--red);
    font-size: 0.75em;
}

.skills__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--space-md);
}

.skills__tag {
    display: inline-block;
    font-family: var(--font-body);
    font-size: var(--fs-tag);
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.4rem 1rem;
    border: 1px solid var(--gray-700);
    color: var(--gray-200);
    transition: border-color var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.skills__tag:hover {
    border-color: var(--red);
    color: var(--red);
}

.skills__tools {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding-top: var(--space-sm);
    border-top: 1px solid var(--gray-800);
}

.skills__tools span {
    font-family: var(--font-body);
    font-size: var(--fs-small);
    font-weight: 300;
    color: var(--gray-500);
    transition: color var(--transition-fast);
}

.skills__tools span:hover {
    color: var(--white);
}

/* =============================================
   PROJETS
   ============================================= */
.projects__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    content-visibility: auto;
    contain-intrinsic-size: auto 1200px;
}

.project-card {
    position: relative;
    overflow: hidden;
    contain: layout style;
}

.project-card--large {
    grid-column: span 2;
}

.project-card__link {
    display: block;
}

.project-card__image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
    background-color: var(--gray-900);
}

.project-card--large .project-card__image {
    aspect-ratio: 21/9;
}

.project-card__image img,
.project-card__image video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s var(--ease-out);
}

/* Video card: poster visible, video hidden until hover */
.project-card__poster {
    position: relative;
    z-index: 1;
}

.project-card__video {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.4s;
}

.project-card:hover .project-card__video {
    opacity: 1;
    z-index: 1;
}

.project-card:hover .project-card__image img,
.project-card:hover .project-card__image video {
    transform: scale(1.05);
}

.project-card__overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(225, 6, 0, 0);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.4s var(--ease-out);
}

.project-card:hover .project-card__overlay {
    background-color: rgba(225, 6, 0, 0.85);
}

.project-card__view {
    font-family: var(--font-heading);
    font-size: var(--fs-h3);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--white);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s var(--ease-out), transform 0.4s var(--ease-out);
}

.project-card:hover .project-card__view {
    opacity: 1;
    transform: translateY(0);
}

.project-card__info {
    padding: var(--space-md) 0 0;
}

.project-card__category {
    display: inline-block;
    font-family: var(--font-body);
    font-size: var(--fs-tag);
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 0.5rem;
}

.project-card__title {
    font-family: var(--font-heading);
    font-size: clamp(1.2rem, 2vw, 1.8rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    transition: color var(--transition-fast);
}

.project-card:hover .project-card__title {
    color: var(--red);
}

.project-card__desc {
    font-family: var(--font-body);
    font-size: var(--fs-small);
    font-weight: 300;
    color: var(--gray-500);
    line-height: 1.6;
    max-width: 50ch;
}

/* =============================================
   TIMELINE
   ============================================= */
.timeline {
    background-color: var(--gray-900);
}

.timeline__wrapper {
    position: relative;
    padding: var(--space-lg) 0;
}

.timeline__line {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: var(--gray-800);
}

.timeline__line::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--line-progress, 0%);
    background-color: var(--red);
    transition: height 0.1s linear;
}

.timeline__item {
    position: relative;
    display: flex;
    align-items: flex-start;
    width: 50%;
    padding: 0 var(--space-lg);
    margin-bottom: var(--space-lg);
}

.timeline__item--left {
    margin-right: auto;
    justify-content: flex-end;
    text-align: right;
    padding-right: var(--space-xl);
}

.timeline__item--right {
    margin-left: auto;
    padding-left: var(--space-xl);
}

.timeline__dot {
    position: absolute;
    top: 0;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.timeline__item--left .timeline__dot {
    right: -8px;
}

.timeline__item--right .timeline__dot {
    left: -8px;
}

.timeline__dot-inner {
    width: 12px;
    height: 12px;
    background-color: var(--red);
    border-radius: 50%;
    border: 3px solid var(--black);
    transition: transform var(--transition);
}

.timeline__item:hover .timeline__dot-inner {
    transform: scale(1.5);
}

.timeline__dot-inner--pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(225, 6, 0, 0.4); }
    50% { box-shadow: 0 0 0 10px rgba(225, 6, 0, 0); }
}

.timeline__card {
    max-width: 450px;
    padding: var(--space-md);
    border: 1px solid var(--gray-800);
    background-color: var(--black);
    transition: border-color var(--transition), transform var(--transition);
}

.timeline__item:hover .timeline__card {
    border-color: var(--red);
    transform: translateY(-4px);
}

.timeline__date {
    display: inline-block;
    font-family: var(--font-body);
    font-size: var(--fs-tag);
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 0.75rem;
}

.timeline__card-title {
    font-family: var(--font-heading);
    font-size: var(--fs-h3);
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.timeline__card-place {
    font-family: var(--font-body);
    font-size: var(--fs-small);
    font-weight: 300;
    color: var(--gray-500);
    margin-bottom: var(--space-sm);
}

.timeline__card-desc {
    font-family: var(--font-body);
    font-size: var(--fs-small);
    font-weight: 300;
    color: var(--gray-300);
    line-height: 1.7;
    margin-bottom: var(--space-sm);
}

.timeline__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: var(--space-sm);
}

.timeline__item--left .timeline__tags {
    justify-content: flex-end;
}

.timeline__tag {
    display: inline-block;
    font-family: var(--font-body);
    font-size: var(--fs-tag);
    font-weight: 400;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.75rem;
    border: 1px solid var(--gray-700);
    color: var(--gray-300);
    transition: border-color var(--transition-fast), color var(--transition-fast);
}

.timeline__tag:hover {
    border-color: var(--red);
    color: var(--red);
}

.timeline__badge {
    display: inline-block;
    font-family: var(--font-body);
    font-size: var(--fs-tag);
    font-weight: 500;
    padding: 0.4rem 1rem;
    background-color: var(--gray-800);
    color: var(--gray-200);
    margin-top: 0.5rem;
}

.timeline__badge--success {
    background-color: rgba(0, 180, 0, 0.15);
    color: #4ADE80;
    border: 1px solid rgba(0, 180, 0, 0.3);
}

.timeline__badge--launch {
    background-color: rgba(225, 6, 0, 0.15);
    color: var(--red-light);
    border: 1px solid rgba(225, 6, 0, 0.3);
}

.timeline__badge--current {
    background-color: rgba(255, 200, 0, 0.15);
    color: #FBBF24;
    border: 1px solid rgba(255, 200, 0, 0.3);
    animation: pulse 3s ease-in-out infinite;
}

/* =============================================
   GALLERY PREVIEW
   ============================================= */
.gallery-preview__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: 250px 250px;
    grid-auto-flow: dense;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.gallery-preview__item {
    position: relative;
    overflow: hidden;
    background-color: var(--gray-900);
    border: 1px solid var(--gray-800);
}

.gallery-preview__item--tall {
    grid-row: span 2;
}

.gallery-preview__item--wide {
    grid-column: span 2;
}

.gallery-preview__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-out);
}

.gallery-preview__item:hover img {
    transform: scale(1.08);
}

.gallery-preview__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--gray-900);
    border: 1px dashed var(--gray-700);
}

.gallery-preview__placeholder span {
    font-family: var(--font-body);
    font-size: var(--fs-small);
    font-weight: 300;
    color: var(--gray-500);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.gallery-preview__cta {
    text-align: center;
}

/* =============================================
   CONTACT
   ============================================= */
.contact {
    padding: var(--space-2xl) 0;
}

.contact__content {
    max-width: 900px;
}

.contact__text {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    font-weight: 300;
    line-height: 1.8;
    color: var(--gray-300);
    margin-bottom: var(--space-lg);
}

.contact__links {
    display: flex;
    flex-direction: column;
}

.contact__link {
    display: flex;
    align-items: center;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--gray-800);
    transition: border-color var(--transition);
    gap: var(--space-md);
}

.contact__link:first-child {
    border-top: 1px solid var(--gray-800);
}

.contact__link:hover {
    border-color: var(--red);
}

.contact__link-label {
    font-family: var(--font-body);
    font-size: var(--fs-tag);
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gray-500);
    min-width: 130px;
    transition: color var(--transition-fast);
}

.contact__link:hover .contact__link-label {
    color: var(--red);
}

.contact__link-value {
    font-family: var(--font-heading);
    font-size: clamp(1rem, 1.8vw, 1.5rem);
    font-weight: 700;
    flex-grow: 1;
    transition: color var(--transition-fast);
}

.contact__link:hover .contact__link-value {
    color: var(--red);
}

.contact__link-arrow {
    font-size: 1.5rem;
    color: var(--gray-700);
    transition: color var(--transition-fast), transform var(--transition);
}

.contact__link:hover .contact__link-arrow {
    color: var(--red);
    transform: translateX(8px);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
    padding: var(--space-md) 0;
    border-top: 1px solid var(--gray-800);
}

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

.footer__left {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.footer__logo {
    width: 24px;
    height: auto;
    opacity: 0.5;
}

.footer__copy {
    font-family: var(--font-body);
    font-size: var(--fs-tag);
    font-weight: 300;
    color: var(--gray-500);
    letter-spacing: 0.05em;
}

.footer__top {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-body);
    font-size: var(--fs-tag);
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gray-500);
    transition: color var(--transition-fast);
}

.footer__top:hover {
    color: var(--red);
}

.footer__top-arrow {
    transition: transform var(--transition);
}

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

/* =============================================
   REVEAL ANIMATIONS (base state)
   ============================================= */
[data-reveal] {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

[data-reveal].is-revealed {
    opacity: 1;
    transform: translateY(0);
}

/* =============================================
   RESPONSIVE
   ============================================= */

/* ─── Large Tablet / Small Desktop ─── */
@media (max-width: 1200px) {
    .hero__name {
        font-size: clamp(1.8rem, 4vw, 3.5rem);
    }

    .gallery-preview__grid {
        grid-template-columns: repeat(3, 1fr);
        grid-template-rows: 220px 220px;
    }

    .projects__grid {
        gap: var(--space-sm);
    }
}

/* ─── Tablet ─── */
@media (max-width: 1024px) {
    /* About */
    .about__grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .about__stats {
        position: static;
        grid-template-columns: repeat(4, 1fr);
    }

    /* Skills */
    .skills__grid {
        grid-template-columns: 1fr;
    }

    /* Projects */
    .projects__grid {
        grid-template-columns: 1fr;
    }

    .project-card--large {
        grid-column: span 1;
    }

    .project-card--large .project-card__image {
        aspect-ratio: 16/10;
    }

    /* Timeline */
    .timeline__wrapper {
        padding-left: 40px;
    }

    .timeline__line {
        left: 0;
        transform: none;
    }

    .timeline__item {
        width: 100%;
        padding: 0 0 0 var(--space-lg);
        margin-left: 0;
        text-align: left;
    }

    .timeline__item--left {
        justify-content: flex-start;
        padding-right: 0;
    }

    .timeline__item--left .timeline__dot {
        right: auto;
        left: -8px;
    }

    .timeline__item--left .timeline__tags {
        justify-content: flex-start;
    }

    /* Gallery preview */
    .gallery-preview__grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: 200px 200px 200px;
    }

    .gallery-preview__item--tall {
        grid-row: span 2;
    }
}

/* ─── Mobile ─── */
@media (max-width: 768px) {
    :root {
        --nav-height: 60px;
        --space-xl: 5rem;
        --space-2xl: 8rem;
    }

    /* Navigation */
    .nav__menu {
        display: none;
    }

    .nav__burger {
        display: flex;
    }

    /* Hero */
    .hero {
        gap: clamp(2rem, 5vw, 3rem);
        padding: calc(var(--nav-height) + 4rem) 1.5rem 5rem;
        min-height: 100vh;
        min-height: 100svh;
    }

    .hero__tag {
        gap: 0.6rem;
    }

    .hero__tag-line {
        width: 20px;
    }

    .hero__logo {
        width: clamp(140px, 35vw, 220px);
    }

    .hero__logo-wrap {
        margin-bottom: clamp(1.2rem, 4vw, 2.5rem);
    }

    .hero__name {
        font-size: clamp(1.6rem, 5.5vw, 2.8rem);
        letter-spacing: 0.1em;
        word-spacing: 0.05em;
    }

    .hero__subtitle {
        font-size: clamp(0.6rem, 2vw, 0.8rem);
        letter-spacing: 0.15em;
    }

    .hero__cta .btn {
        padding: 0.8rem 1.6rem;
        font-size: clamp(0.65rem, 2vw, 0.8rem);
    }

    .hero__scroll {
        bottom: 1.5rem;
    }

    .hero__scroll-line {
        height: 30px;
    }

    /* Marquee */
    .marquee {
        padding: var(--space-sm) 0;
    }

    /* About */
    .about__stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .about__intro {
        font-size: clamp(1rem, 3.5vw, 1.2rem) !important;
    }

    /* Skills */
    .skills__category {
        padding: var(--space-md);
    }

    /* Timeline */
    .timeline__wrapper {
        padding-left: 20px;
    }

    .timeline__item {
        padding-left: var(--space-md);
    }

    .timeline__card {
        padding: var(--space-sm);
    }

    /* Gallery preview */
    .gallery-preview__grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    .gallery-preview__item {
        min-height: 200px;
    }

    .gallery-preview__item--tall,
    .gallery-preview__item--wide {
        grid-row: auto;
        grid-column: auto;
    }

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

    .contact__link {
        flex-wrap: wrap;
        gap: 0.5rem;
        padding: var(--space-sm) 0;
    }

    .contact__link-label {
        width: 100%;
        min-width: auto;
    }

    .contact__link-value {
        font-size: clamp(0.9rem, 4vw, 1.2rem);
    }

    .contact__link-arrow {
        display: none;
    }

    /* Footer */
    .footer__inner {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }

    /* Section spacing */
    .section {
        padding: var(--space-lg) 0;
    }

    .section__header {
        margin-bottom: var(--space-md);
    }

    .section__title {
        line-height: 1.2;
    }

    .section__title--large {
        font-size: clamp(2rem, 8vw, 3.5rem);
    }

    /* Project card info */
    .project-card__info {
        padding: var(--space-sm) 0 0;
    }

    .project-card__desc {
        font-size: clamp(0.75rem, 2.5vw, 0.85rem);
    }
}

/* ─── Small mobile ─── */
@media (max-width: 480px) {
    /* Hero */
    .hero {
        gap: clamp(1.8rem, 5vw, 2.5rem);
        padding: calc(var(--nav-height) + 3rem) 1rem 4rem;
    }

    .hero__name {
        font-size: clamp(1.3rem, 7vw, 2rem);
        letter-spacing: 0.08em;
    }

    .hero__logo {
        width: clamp(110px, 38vw, 160px);
    }

    .hero__logo-wrap {
        margin-bottom: clamp(2rem, 5vw, 3.5rem);
    }

    .hero__subtitle {
        font-size: clamp(0.55rem, 2.2vw, 0.7rem);
        letter-spacing: 0.1em;
    }

    .hero__cta .btn {
        padding: 0.7rem 1.3rem;
    }

    .hero__scroll-text {
        display: none;
    }

    /* About */
    .about__stats {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-sm);
    }

    .about__stat {
        padding: var(--space-sm);
    }

    .about__stat-number {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }

    /* Skills */
    .skills__category {
        padding: var(--space-sm);
    }

    .skills__category-title {
        font-size: clamp(1rem, 4vw, 1.3rem);
    }

    /* Timeline */
    .timeline__card-title {
        font-size: clamp(1rem, 4vw, 1.3rem);
    }

    .timeline__card-desc {
        font-size: clamp(0.75rem, 2.5vw, 0.85rem);
    }

    /* Contact */
    .contact__link-value {
        font-size: clamp(0.85rem, 4.5vw, 1.1rem);
    }

    /* Section title */
    .section__subtitle {
        font-size: clamp(0.8rem, 3vw, 0.95rem);
    }

    /* Mobile menu */
    .mobile-menu__link {
        font-size: clamp(1.8rem, 7vw, 2.5rem);
    }

    .mobile-menu__footer {
        gap: 1.2rem;
        bottom: 2rem;
    }
}

/* ─── Ultra small (iPhone SE, Galaxy Fold) ─── */
@media (max-width: 360px) {
    .hero {
        gap: 1.6rem;
        padding: calc(var(--nav-height) + 2.5rem) 0.75rem 3rem;
    }

    .hero__name {
        font-size: clamp(1.1rem, 7vw, 1.6rem);
        letter-spacing: 0.05em;
    }

    .hero__logo {
        width: clamp(90px, 35vw, 130px);
    }

    .hero__logo-wrap {
        margin-bottom: 2.5rem;
    }

    .hero__scroll {
        display: none;
    }

    .about__stat-number {
        font-size: clamp(1.2rem, 5vw, 1.6rem);
    }

    .mobile-menu__link {
        font-size: clamp(1.5rem, 7vw, 2rem);
    }

    .contact__text {
        font-size: clamp(0.85rem, 3.5vw, 1rem);
    }
}

/* ─── Landscape phones ─── */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: calc(var(--nav-height) + 1.5rem) 2rem 2rem;
        gap: 1rem;
    }

    .hero__logo {
        width: clamp(60px, 15vh, 100px);
    }

    .hero__scroll {
        display: none;
    }

    .mobile-menu__link {
        font-size: clamp(1.2rem, 4vw, 1.8rem);
        gap: 0.8rem;
    }

    .mobile-menu__nav {
        gap: 0.8rem;
    }
}

/* =============================================
   SPECIAL EFFECTS
   ============================================= */



/* Smooth page transition */
body {
    opacity: 0;
    transition: opacity 0.3s;
}

body.is-loaded {
    opacity: 1;
}

/* Video card hover play */
.project-card__image--video video {
    object-fit: cover;
}

/* Video card hover play — handled via JS */

/* Progress bar for scroll (GPU-accelerated via scaleX) */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--red);
    z-index: 10000;
    will-change: transform;
    transform-origin: left;
    transform: scaleX(0);
}

/* ─── Reduced Motion ─── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .grain { display: none; }
    [data-reveal] { opacity: 1; transform: none; }
}

/* ─── Content visibility for off-screen sections ─── */
.skills, .timeline, .gallery-preview, .contact {
    content-visibility: auto;
    contain-intrinsic-size: auto 800px;
}