/* ═══════════════════════════════════════════════════════════
   PORTFOLIO — YANIS CHIOVEANU
   Direction Artistique : Apple Human Interface Guidelines
   Version 3.0 — Full Apple DA Compliance
   ═══════════════════════════════════════════════════════════ */

/* ═══════════════════════════════════════════════════════════
   1. DESIGN TOKENS — APPLE SYSTEM
   ═══════════════════════════════════════════════════════════ */
:root {
    /* ── Apple Colors — Dark ── */
    --color-bg:             #000000;
    --color-bg-elevated:    #1d1d1f;
    --color-bg-secondary:   #161617;
    --color-surface:        rgba(255, 255, 255, 0.04);
    --color-surface-hover:  rgba(255, 255, 255, 0.08);
    --color-surface-card:   rgba(255, 255, 255, 0.05);

    /* ── Text — Apple Label System ── */
    --text-primary:         #f5f5f7;
    --text-secondary:       #86868b;
    --text-tertiary:        #6e6e73;
    --text-quaternary:      rgba(235, 235, 245, 0.18);

    /* ── Accent — Apple Blue ── */
    --color-accent:         #0071e3;
    --color-accent-hover:   #0077ed;
    --color-accent-dim:     rgba(0, 113, 227, 0.12);
    --color-accent-border:  rgba(0, 113, 227, 0.25);

    /* ── Accent — Apple Green ── */
    --color-green:          #30d158;
    --color-green-dim:      rgba(48, 209, 88, 0.10);
    --color-green-border:   rgba(48, 209, 88, 0.22);

    /* ── Accent — Apple Indigo ── */
    --color-indigo:         #5e5ce6;
    --color-indigo-dim:     rgba(94, 92, 230, 0.12);
    --color-indigo-border:  rgba(94, 92, 230, 0.25);

    /* ── Separators ── */
    --color-separator:      rgba(255, 255, 255, 0.08);
    --color-separator-bold: rgba(255, 255, 255, 0.15);

    /* ── Glass Material — Apple Vibrancy ── */
    --glass-bg:             rgba(29, 29, 31, 0.72);
    --glass-bg-light:       rgba(255, 255, 255, 0.72);
    --glass-border:         rgba(255, 255, 255, 0.08);
    --glass-border-hover:   rgba(255, 255, 255, 0.14);

    /* ── Shadows — Ultra subtle ── */
    --shadow-sm:    0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md:    0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-lg:    0 8px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl:    0 20px 60px rgba(0, 0, 0, 0.20);
    --shadow-card:  0 2px 12px rgba(0, 0, 0, 0.04), 0 0 0 1px rgba(255,255,255,0.06);

    /* ── Typography — Apple System ── */
    --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-text:    -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    /* ── Apple Type Scale ── */
    --size-hero:      clamp(3rem, 6vw, 5.5rem);
    --size-display:   clamp(2.5rem, 4.5vw, 4rem);
    --size-title-1:   clamp(1.75rem, 3vw, 2.5rem);
    --size-title-2:   clamp(1.25rem, 2vw, 1.75rem);
    --size-title-3:   1.25rem;
    --size-headline:  1.0625rem;
    --size-body:      1.0625rem;
    --size-callout:   1rem;
    --size-subhead:   0.9375rem;
    --size-footnote:  0.875rem;
    --size-caption:   0.75rem;

    /* ── Radius — Apple rounded rects ── */
    --radius-sm:    10px;
    --radius-md:    14px;
    --radius-lg:    20px;
    --radius-xl:    24px;
    --radius-2xl:   28px;
    --radius-pill:  9999px;

    /* ── Motion — Apple curves ── */
    --ease-apple:       cubic-bezier(0.25, 0.1, 0.25, 1);
    --ease-spring:      cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-enter:       cubic-bezier(0.0, 0.0, 0.2, 1.0);
    --ease-exit:        cubic-bezier(0.4, 0.0, 1.0, 1.0);
    --ease-emphasized:  cubic-bezier(0.2, 0.0, 0.0, 1.0);

    --dur-fast:     150ms;
    --dur-normal:   300ms;
    --dur-slow:     500ms;
    --dur-reveal:   800ms;

    /* ── Layout ── */
    --content-max:  1120px;
    --section-pad:  clamp(80px, 12vh, 160px);
    --nav-height:   52px;

    /* ── Legacy aliases (for JS-generated HTML in modals) ── */
    --neon-blue:    var(--color-accent);
    --neon-purple:  var(--color-indigo);
    --text-main:    var(--text-primary);
    --text-muted:   var(--text-secondary);
    --bg-dark:      var(--color-bg);
    --font-family:  var(--font-text);
    --glass-shadow: var(--shadow-lg);
    --accent:       var(--color-accent);
    --accent-hover: var(--color-accent-hover);
    --accent-bg:    var(--color-accent-dim);
    --accent-border:var(--color-accent-border);
    --indigo:       var(--color-indigo);
    --indigo-bg:    var(--color-indigo-dim);
    --indigo-border:var(--color-indigo-border);
    --surface-1:    var(--color-bg-elevated);
    --surface-2:    #2c2c2e;
    --surface-3:    #3a3a3c;
    --separator:    var(--color-separator);
    --label-primary:    var(--text-primary);
    --label-secondary:  var(--text-secondary);
    --label-tertiary:   var(--text-tertiary);
    --color-accent-dim: rgba(0, 113, 227, 0.12);
    --color-accent-mid: rgba(0, 113, 227, 0.25);
    --color-indigo-dim: rgba(94, 92, 230, 0.12);
    --color-indigo-mid: rgba(94, 92, 230, 0.25);
    --color-green-dim:  rgba(48, 209, 88, 0.10);
    --color-green-mid:  rgba(48, 209, 88, 0.22);
    --color-fill-3:     rgba(120, 120, 128, 0.16);
    --color-surface-2:  #2c2c2e;
    --color-surface-3:  #3a3a3c;
    --color-separator:  rgba(255, 255, 255, 0.08);
}


/* ═══════════════════════════════════════════════════════════
   2. RESET & BASE
   ═══════════════════════════════════════════════════════════ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-family: var(--font-text);
    background-color: var(--color-bg);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-feature-settings: 'kern' 1, 'liga' 1;
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
    min-height: 100vh;
    line-height: 1.47059;
    background: var(--color-bg);
}

/* Focus ring — Apple style */
:focus-visible {
    outline: 3px solid rgba(0, 113, 227, 0.60);
    outline-offset: 2px;
    border-radius: 4px;
}
:focus:not(:focus-visible) { outline: none; }

/* Scrollbar — macOS */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.22); }

/* Selection */
::selection { background: rgba(0, 113, 227, 0.30); color: #fff; }


/* ═══════════════════════════════════════════════════════════
   3. BACKGROUND — PURE BLACK + SUBTLE GRAIN
   ═══════════════════════════════════════════════════════════ */
.bg-scene {
    position: fixed;
    inset: 0;
    z-index: -2;
    background: var(--color-bg);
    pointer-events: none;
}

.bg-grain {
    position: absolute;
    inset: -10%;
    width: 120%;
    height: 120%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 200px 200px;
    opacity: 0.018;
    mix-blend-mode: screen;
}

/* Subtle radial glow — hero area only */
.bg-glow {
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 140vw;
    height: 80vh;
    background: radial-gradient(
        ellipse 50% 50% at 50% 30%,
        rgba(0, 113, 227, 0.04) 0%,
        transparent 70%
    );
    pointer-events: none;
}


/* ═══════════════════════════════════════════════════════════
   4. NAVIGATION — APPLE GLASSMORPHISM PILL
   ═══════════════════════════════════════════════════════════ */
.apple-nav {
    position: fixed;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 720px;
    background: rgba(29, 29, 31, 0.72);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);
    padding: 6px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: all var(--dur-normal) var(--ease-apple);
}

/* Scrolled state — slightly more opaque */
.apple-nav.scrolled {
    background: rgba(29, 29, 31, 0.88);
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.3);
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    flex-shrink: 0;
    user-select: none;
    text-decoration: none;
}
.nav-logo span {
    color: var(--text-secondary);
    font-weight: 400;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-family: var(--font-text);
    font-size: 0.8125rem;
    font-weight: 500;
    padding: 7px 14px;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all var(--dur-normal) var(--ease-apple);
    display: flex;
    align-items: center;
    gap: 6px;
    letter-spacing: -0.01em;
    user-select: none;
    -webkit-user-select: none;
}
.nav-link i { font-size: 0.72rem; opacity: 0.8; }

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.07);
}

.nav-link.active {
    color: #ffffff;
    background: var(--color-accent);
}


/* ═══════════════════════════════════════════════════════════
   5. LAYOUT — CONTINUOUS SCROLL
   ═══════════════════════════════════════════════════════════ */
.content-wrapper {
    position: relative;
    z-index: 1;
}

.section {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: var(--section-pad) 24px;
}

/* Section dividers — subtle Apple separators */
.section + .section {
    border-top: 1px solid var(--color-separator);
}

.section--hero {
    padding-top: calc(var(--nav-height) + 100px);
    padding-bottom: var(--section-pad);
    border-top: none !important;
}

.section--full {
    max-width: none;
    padding-left: 0;
    padding-right: 0;
}

/* ═══════════════════════════════════════════════════════════
   6. SCROLL REVEAL ANIMATIONS
   ═══════════════════════════════════════════════════════════ */
[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition:
        opacity var(--dur-reveal) var(--ease-emphasized),
        transform var(--dur-reveal) var(--ease-emphasized);
}

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

/* Staggered delay support */
[data-reveal-delay="1"] { transition-delay: 100ms; }
[data-reveal-delay="2"] { transition-delay: 200ms; }
[data-reveal-delay="3"] { transition-delay: 300ms; }
[data-reveal-delay="4"] { transition-delay: 400ms; }
[data-reveal-delay="5"] { transition-delay: 500ms; }


/* ═══════════════════════════════════════════════════════════
   7. SECTION TITLES — APPLE TYPOGRAPHY
   ═══════════════════════════════════════════════════════════ */
.section-eyebrow {
    font-family: var(--font-text);
    font-size: var(--size-subhead);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 12px;
    text-align: center;
}

.section-headline {
    font-family: var(--font-display);
    font-size: var(--size-display);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.08;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 20px;
}

.section-subhead {
    font-family: var(--font-text);
    font-size: var(--size-title-3);
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.5;
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}


/* ═══════════════════════════════════════════════════════════
   8. HERO — APPLE KEYNOTE STYLE
   ═══════════════════════════════════════════════════════════ */
.hero {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 85vh;
    justify-content: center;
}

.hero-avatar {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 32px;
    border: 3px solid rgba(255, 255, 255, 0.10);
    box-shadow: 0 0 0 1px rgba(255,255,255,0.06), var(--shadow-lg);
    transition: transform var(--dur-normal) var(--ease-apple);
    will-change: transform;
}
.hero-avatar:hover {
    transform: scale(1.03);
}
.hero-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-title {
    font-family: var(--font-display);
    font-size: var(--size-hero);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.05;
    color: var(--text-primary);
    margin-bottom: 16px;
    will-change: transform;
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: var(--size-title-2);
    font-weight: 300;
    color: var(--text-secondary);
    letter-spacing: -0.01em;
    line-height: 1.4;
    margin-bottom: 12px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--color-accent-dim);
    color: var(--color-accent);
    border: 1px solid var(--color-accent-border);
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    font-size: var(--size-caption);
    font-weight: 600;
    letter-spacing: 0.02em;
    margin-bottom: 28px;
}

.hero-bio {
    font-size: var(--size-body);
    color: var(--text-secondary);
    max-width: 520px;
    line-height: 1.58;
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}


/* ═══════════════════════════════════════════════════════════
   9. APPLE CARDS
   ═══════════════════════════════════════════════════════════ */
.card {
    background: var(--color-surface-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--shadow-card);
    transition: all var(--dur-normal) var(--ease-apple);
    position: relative;
    overflow: hidden;
}

/* Top edge specular highlight */
.card::before {
    content: '';
    position: absolute;
    top: 0; left: 8%; right: 8%;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255,255,255,0.06) 30%,
        rgba(255,255,255,0.06) 70%,
        transparent 100%
    );
    pointer-events: none;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--glass-border-hover);
}


/* ═══════════════════════════════════════════════════════════
   10. APPLE BUTTONS
   ═══════════════════════════════════════════════════════════ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-text);
    font-weight: 500;
    font-size: var(--size-footnote);
    letter-spacing: -0.01em;
    border: none;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    text-decoration: none;
    border-radius: var(--radius-pill);
    transition: all var(--dur-normal) var(--ease-apple);
}

/* Primary — Apple Blue filled */
.btn--primary {
    background: var(--color-accent);
    color: #ffffff;
    padding: 12px 24px;
}
.btn--primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
}
.btn--primary:active {
    transform: scale(0.97);
    transition: transform 100ms ease;
}

/* Secondary — Ghost / outline */
.btn--secondary {
    background: transparent;
    color: var(--color-accent);
    padding: 11px 23px;
    border: 1.5px solid var(--color-accent);
}
.btn--secondary:hover {
    background: var(--color-accent);
    color: #ffffff;
}
.btn--secondary:active {
    transform: scale(0.97);
    transition: transform 100ms ease;
}

/* Tertiary — text only */
.btn--tertiary {
    background: transparent;
    color: var(--color-accent);
    padding: 8px 4px;
}
.btn--tertiary:hover {
    color: var(--color-accent-hover);
}
.btn--tertiary i { font-size: 0.75rem; }

/* Ghost — subtle surface */
.btn--ghost {
    background: var(--color-surface);
    color: var(--text-secondary);
    padding: 10px 18px;
    border: 1px solid var(--glass-border);
}
.btn--ghost:hover {
    background: var(--color-surface-hover);
    color: var(--text-primary);
    border-color: var(--glass-border-hover);
}
.btn--ghost:active {
    transform: scale(0.97);
    transition: transform 100ms ease;
}

/* Legacy compat */
.cyber-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-accent);
    color: #ffffff;
    padding: 10px 20px;
    border-radius: var(--radius-pill);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--size-footnote);
    border: none;
    cursor: pointer;
    font-family: var(--font-text);
    user-select: none;
    transition: all var(--dur-normal) var(--ease-apple);
}
.cyber-btn:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
}
.cyber-btn:active {
    transform: scale(0.97);
    transition: transform 100ms ease;
}


/* ═══════════════════════════════════════════════════════════
   11. PARCOURS — EDUCATION + MAP
   ═══════════════════════════════════════════════════════════ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-top: 48px;
}

.about-card {
    composes: card;
}

.about-card h3 {
    font-family: var(--font-display);
    font-size: var(--size-title-3);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.02em;
}
.about-card h3 i { color: var(--color-accent); }

.edu-track {
    border-left: 2px solid var(--color-separator-bold);
    padding-left: 24px;
    margin-bottom: 0;
}

.edu-item {
    position: relative;
    margin-bottom: 24px;
}
.edu-item:last-child { margin-bottom: 0; }

.edu-item::before {
    content: '';
    position: absolute;
    left: -31px;
    top: 6px;
    width: 10px;
    height: 10px;
    background: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.15);
}

.edu-date {
    color: var(--color-accent);
    font-size: var(--size-caption);
    font-weight: 700;
    display: block;
    margin-bottom: 4px;
    letter-spacing: 0.03em;
}

.edu-item h4 {
    font-family: var(--font-display);
    font-size: var(--size-subhead);
    font-weight: 600;
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.edu-item p {
    font-size: var(--size-footnote);
    color: var(--text-secondary);
}

.map-container {
    margin-top: 24px;
}

.map-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--size-footnote);
    font-weight: 500;
    margin-bottom: 10px;
    color: var(--text-secondary);
}
.map-tag i { color: var(--color-accent); }

.map-container iframe {
    width: 100%;
    height: 200px;
    border: none;
    border-radius: var(--radius-lg);
    filter: grayscale(20%) brightness(0.75) contrast(1.1);
}


/* ═══════════════════════════════════════════════════════════
   12. SOCIAL PILLS  
   ═══════════════════════════════════════════════════════════ */
.social-pills {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.pill {
    text-decoration: none;
    color: var(--text-secondary);
    background: var(--color-surface);
    padding: 10px 18px;
    border-radius: var(--radius-pill);
    font-size: var(--size-footnote);
    font-weight: 500;
    transition: all var(--dur-normal) var(--ease-apple);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 8px;
}
.pill i { font-size: 0.85rem; }
.pill:hover {
    color: var(--text-primary);
    background: var(--color-surface-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-1px);
}
.pill:active {
    transform: scale(0.97);
}


/* ═══════════════════════════════════════════════════════════
   13. PROJETS — Apple-style grid
   ═══════════════════════════════════════════════════════════ */
.projects-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.project-column-header {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: var(--size-callout);
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}
.project-column-header.pro i   { color: var(--color-accent); }
.project-column-header.school i { color: var(--color-green); }

.project-card {
    background: var(--color-surface-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 16px;
    cursor: pointer;
    transition: all var(--dur-normal) var(--ease-apple);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0; left: 10%; right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
    pointer-events: none;
}

.project-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--glass-border-hover);
}
.project-card:active {
    transform: scale(0.98);
    transition: transform 100ms ease;
}

.project-badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 6px;
    margin-bottom: 12px;
}
.project-badge--pro {
    background: var(--color-accent-dim);
    color: var(--color-accent);
    border: 1px solid var(--color-accent-border);
}
.project-badge--school {
    background: var(--color-green-dim);
    color: var(--color-green);
    border: 1px solid var(--color-green-border);
}

.project-card h4 {
    font-family: var(--font-display);
    font-size: var(--size-callout);
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.project-card p {
    font-size: var(--size-footnote);
    color: var(--text-secondary);
    margin-bottom: 14px;
    line-height: 1.55;
}

.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tags span {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-tertiary);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    padding: 3px 10px;
    border-radius: 6px;
    border: 1px solid var(--glass-border);
    text-transform: uppercase;
}


/* ═══════════════════════════════════════════════════════════
   14. TIMELINE — EXPÉRIENCES
   ═══════════════════════════════════════════════════════════ */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 48px auto 0;
    padding-left: 44px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 13px;
    top: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        var(--color-separator-bold) 5%,
        var(--color-separator-bold) 95%,
        transparent 100%
    );
}

.timeline-item {
    position: relative;
    margin-bottom: 36px;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-marker {
    position: absolute;
    left: -38px;
    top: 24px;
    width: 11px;
    height: 11px;
    background: var(--color-bg);
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.12);
    z-index: 2;
    transition: all var(--dur-normal) var(--ease-apple);
}

.timeline-item:hover .timeline-marker {
    box-shadow: 0 0 0 6px rgba(0, 113, 227, 0.18);
    border-color: var(--color-accent-hover);
}

.timeline-card {
    background: var(--color-surface-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--dur-normal) var(--ease-apple);
}

.timeline-card:hover {
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.timeline-date {
    color: var(--color-accent);
    font-weight: 700;
    font-size: var(--size-caption);
    letter-spacing: 0.03em;
    display: block;
    margin-bottom: 6px;
}

.timeline-card h4 {
    font-family: var(--font-display);
    font-size: var(--size-callout);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.timeline-company {
    color: var(--color-indigo);
    font-weight: 600;
    font-size: var(--size-subhead);
    display: block;
    margin-bottom: 14px;
}

.timeline-card p {
    font-size: var(--size-footnote);
    color: var(--text-secondary);
    line-height: 1.75;
}

.timeline-map iframe {
    width: 100%;
    height: 150px;
    border-radius: var(--radius-md);
    margin-top: 16px;
    border: none;
    filter: grayscale(20%) brightness(0.75) contrast(1.1);
}


/* ═══════════════════════════════════════════════════════════
   15. VEILLE TECHNOLOGIQUE
   ═══════════════════════════════════════════════════════════ */
.veille-card {
    background: var(--color-surface-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 40px;
    max-width: 820px;
    margin: 48px auto 0;
    text-align: center;
    transition: all var(--dur-normal) var(--ease-apple);
}

.veille-card:hover {
    border-color: var(--glass-border-hover);
}

.veille-card h3 {
    font-family: var(--font-display);
    font-size: var(--size-title-3);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    letter-spacing: -0.02em;
}
.veille-card h3 i { color: var(--color-accent); }

.veille-card p {
    color: var(--text-secondary);
    line-height: 1.65;
    font-size: var(--size-footnote);
}

.veille-card ul {
    color: var(--text-secondary);
    line-height: 1.75;
    margin: 14px 0;
    padding-left: 24px;
    font-size: var(--size-footnote);
    text-align: left;
    display: inline-block;
}

.veille-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 28px;
    flex-wrap: wrap;
}

.veille-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
    margin-top: 24px;
}


/* ═══════════════════════════════════════════════════════════
   16. CONTACT
   ═══════════════════════════════════════════════════════════ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 28px;
    max-width: 1000px;
    margin: 48px auto 0;
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-info h3 {
    font-family: var(--font-display);
    font-size: var(--size-title-2);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.contact-info > p {
    color: var(--text-secondary);
    font-size: var(--size-footnote);
    line-height: 1.65;
    margin-bottom: 28px;
}

.info-list { display: flex; flex-direction: column; gap: 20px; }
.info-item { display: flex; align-items: center; gap: 16px; }

.info-icon {
    width: 44px;
    height: 44px;
    background: var(--color-accent-dim);
    color: var(--color-accent);
    border-radius: var(--radius-md);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1rem;
    border: 1px solid var(--color-accent-border);
    flex-shrink: 0;
    transition: all var(--dur-normal) var(--ease-apple);
}

.info-item:hover .info-icon {
    background: var(--color-accent-border);
    transform: scale(1.05);
}

.info-details h4 {
    font-size: var(--size-caption);
    font-weight: 500;
    color: var(--text-tertiary);
    margin-bottom: 2px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.info-details span {
    font-size: var(--size-callout);
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.01em;
}

/* Contact Form */
.contact-form-card {
    background: var(--color-surface-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 32px;
}

.apple-form { display: flex; flex-direction: column; gap: 28px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }

.form-field { position: relative; }
.form-field input,
.form-field textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-separator-bold);
    padding: 14px 0;
    color: var(--text-primary);
    font-size: var(--size-callout);
    font-family: var(--font-text);
    outline: none;
    transition: border-color var(--dur-normal) var(--ease-apple);
}
.form-field input:focus,
.form-field textarea:focus {
    border-bottom-color: var(--color-accent);
}

.form-field label {
    position: absolute;
    left: 0;
    top: 14px;
    color: var(--text-tertiary);
    font-size: var(--size-footnote);
    font-weight: 400;
    pointer-events: none;
    transition: all var(--dur-normal) var(--ease-enter);
}

.form-field input:focus ~ label,
.form-field input:valid ~ label,
.form-field textarea:focus ~ label,
.form-field textarea:valid ~ label {
    top: -14px;
    font-size: var(--size-caption);
    color: var(--color-accent);
    font-weight: 600;
    letter-spacing: 0.03em;
}

.form-field .form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--dur-normal) var(--ease-enter);
}
.form-field input:focus ~ .form-line,
.form-field textarea:focus ~ .form-line { width: 100%; }

.form-field textarea { resize: vertical; }

.form-submit {
    width: 100%;
    justify-content: center;
    padding: 14px;
    border-radius: var(--radius-pill);
    font-size: var(--size-subhead);
    font-weight: 600;
    background: var(--color-accent);
    color: #fff;
    border: none;
    cursor: pointer;
    font-family: var(--font-text);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--dur-normal) var(--ease-apple);
}
.form-submit:hover {
    background: var(--color-accent-hover);
}
.form-submit:active {
    transform: scale(0.98);
    transition: transform 100ms ease;
}


/* ═══════════════════════════════════════════════════════════
   17. FOOTER — Apple minimal
   ═══════════════════════════════════════════════════════════ */
.apple-footer {
    text-align: center;
    padding: 40px 24px 60px;
    border-top: 1px solid var(--color-separator);
    max-width: var(--content-max);
    margin: 0 auto;
}

.apple-footer p {
    color: var(--text-tertiary);
    font-size: var(--size-caption);
    letter-spacing: 0.01em;
}

.apple-footer a {
    color: var(--color-accent);
    text-decoration: none;
}
.apple-footer a:hover { text-decoration: underline; }


/* ═══════════════════════════════════════════════════════════
   18. MODALS — APPLE SHEET
   ═══════════════════════════════════════════════════════════ */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    z-index: 2000;
    display: none;
    justify-content: center;
    align-items: center;
    padding: 3vh 3vw;
    opacity: 0;
    transition: opacity var(--dur-normal) var(--ease-apple);
}
.modal.is-open { display: flex; }
.modal.is-active { opacity: 1; }

.modal-content {
    position: relative;
    width: 95vw;
    height: 90vh;
    max-width: 1400px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    display: flex;
    flex-direction: column;
    padding: 44px;
    box-shadow: var(--shadow-xl);
    overflow-y: auto;
}

/* Enter — spring */
.modal.is-active .modal-content {
    animation: modalEnter 450ms var(--ease-spring) forwards;
}
/* Exit */
.modal.is-closing .modal-content {
    animation: modalExit 200ms var(--ease-exit) forwards;
}

@keyframes modalEnter {
    from { opacity: 0; transform: scale(0.94) translateY(14px); }
    to   { opacity: 1; transform: scale(1)    translateY(0); }
}
@keyframes modalExit {
    from { opacity: 1; transform: scale(1); }
    to   { opacity: 0; transform: scale(0.96); }
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 24px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-tertiary);
    cursor: pointer;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border);
    z-index: 10;
    transition: all var(--dur-normal) var(--ease-apple);
    user-select: none;
}
.close-modal:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.10);
}
.close-modal:active {
    transform: scale(0.90);
    transition: transform 100ms ease;
}

.modal-det-title {
    font-family: var(--font-display);
    font-size: var(--size-title-1);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 28px;
    border-bottom: 1px solid var(--color-separator);
    padding-bottom: 20px;
    flex-shrink: 0;
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    flex-grow: 1;
    align-items: stretch;
}

.modal-text-col { display: flex; flex-direction: column; }
.modal-text-col h3 {
    font-family: var(--font-display);
    font-size: var(--size-callout);
    font-weight: 600;
    color: var(--color-accent);
    margin-top: 24px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.01em;
}
.modal-text-col h3:first-child { margin-top: 0; }
.modal-text-col p {
    color: var(--text-secondary);
    font-size: var(--size-subhead);
    line-height: 1.75;
}

.modal-evidence-col { display: flex; flex-direction: column; }
.modal-evidence-col h3 {
    font-family: var(--font-display);
    font-size: var(--size-callout);
    font-weight: 600;
    color: var(--color-indigo);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-img-container {
    width: 100%;
    flex-grow: 1;
    min-height: 400px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    overflow: hidden;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
}
.modal-img-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
    border-radius: var(--radius-md);
}

.modal-link-wrapper { margin-top: auto; padding-top: 24px; }
.modal-btn {
    font-size: var(--size-subhead);
    padding: 12px 24px;
}

/* Skills in modal */
.modal-skills-section { margin-top: 14px; }
.modal-skills-container { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 11px; }

.skill-btn {
    font-size: var(--size-caption);
    font-weight: 500;
    padding: 8px 14px;
    border-radius: var(--radius-pill);
    background: var(--color-indigo-dim);
    border: 1px solid var(--color-indigo-border);
    color: var(--text-secondary);
    box-shadow: none;
    transition: all var(--dur-normal) var(--ease-apple);
}
.skill-btn i {
    font-size: 0.72rem;
    color: var(--color-indigo);
    transition: color var(--dur-normal);
}
.skill-btn:hover {
    background: var(--color-indigo);
    border-color: var(--color-indigo);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(94, 92, 230, 0.30);
}
.skill-btn:hover i { color: #fff; }
.skill-btn:active {
    transform: scale(0.96);
    transition: transform 100ms ease;
}

/* Skills list modal */
.skills-list { list-style: none; padding: 0; margin-top: 16px; }
.skills-list li {
    background: var(--color-surface);
    border: 1px solid var(--glass-border);
    padding: 16px 20px;
    margin-bottom: 10px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: var(--size-callout);
    font-weight: 500;
    color: var(--text-primary);
    transition: all var(--dur-normal) var(--ease-apple);
    letter-spacing: -0.01em;
    cursor: default;
}
.skills-list li:hover {
    transform: translateX(6px);
    border-color: var(--color-accent-border);
    background: var(--color-accent-dim);
}
.skills-list li i {
    font-size: 1.15rem;
    color: var(--color-accent);
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

/* Notion / Flipboard buttons */
.notion-btn {
    background: var(--color-surface) !important;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary) !important;
}
.notion-btn:hover {
    background: var(--color-surface-hover) !important;
    color: var(--text-primary) !important;
}

.flipboard-btn {
    background: #E32D26 !important;
}
.flipboard-btn:hover {
    background: #FF3B30 !important;
}


/* ═══════════════════════════════════════════════════════════
   19. ADMIN — LAYOUT  (preserved from original)
   ═══════════════════════════════════════════════════════════ */
.admin-body { display: flex; justify-content: center; align-items: center; min-height: 100vh; }

.admin-login-wrapper {
    display: none;
    width: 100%; height: 100vh;
    justify-content: center; align-items: center;
    position: fixed; inset: 0; z-index: 100;
}
.admin-login-wrapper.active { display: flex; }

.login-card { width: 100%; max-width: 360px; text-align: center; }
.login-card h2 {
    font-size: var(--size-title-2);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.login-card h2 i { color: var(--color-accent); margin-right: 8px; }
.login-card > p { color: var(--text-secondary); font-size: var(--size-footnote); }
.error-msg { color: #FF3B30 !important; font-size: var(--size-caption) !important; margin-top: 10px; min-height: 18px; }
.return-link {
    display: inline-block; margin-top: 18px;
    color: var(--text-tertiary); text-decoration: none;
    font-size: var(--size-footnote);
    transition: color var(--dur-normal);
}
.return-link i { margin-right: 4px; }
.return-link:hover { color: var(--color-accent); }

.admin-dashboard-wrapper {
    display: none; width: 100%; min-height: 100vh;
    padding: 20px; z-index: 100;
    position: relative; flex-direction: column; align-items: center;
}
.admin-dashboard-wrapper.active { display: flex; }

.dashboard-layout {
    display: flex; gap: 20px; width: 100%;
    max-width: 1400px; height: 90vh; margin: 0 auto;
}

.admin-sidebar {
    width: 250px; flex-shrink: 0;
    display: flex; flex-direction: column;
    padding: 24px 18px; border-radius: var(--radius-xl);
}

.admin-menu { list-style: none; display: flex; flex-direction: column; gap: 4px; margin-top: 6px; }
.admin-menu-item {
    padding: 10px 14px; border-radius: var(--radius-md);
    color: var(--text-secondary); font-weight: 500;
    font-size: var(--size-footnote); cursor: pointer;
    transition: all var(--dur-normal) var(--ease-apple);
    display: flex; align-items: center; gap: 9px;
    border: 1px solid transparent;
}
.admin-menu-item i { color: var(--text-tertiary); font-size: 0.82rem; transition: color var(--dur-normal); }
.admin-menu-item:hover { background: rgba(255,255,255,0.06); color: var(--text-primary); }
.admin-menu-item:hover i { color: var(--text-secondary); }
.admin-menu-item.active {
    background: var(--color-accent-dim);
    border-color: var(--color-accent-border);
    color: var(--text-primary);
}
.admin-menu-item.active i { color: var(--color-accent); }

.admin-main { flex-grow: 1; display: flex; flex-direction: column; overflow: hidden; }
.admin-tab-content {
    display: none; height: 100%; overflow-y: auto;
    padding: 32px; border-radius: var(--radius-xl);
}
.admin-tab-content.active {
    display: block;
    animation: sectionReveal var(--dur-normal) var(--ease-enter) forwards;
}

@keyframes sectionReveal {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.select-box { position: relative; }
.cyber-select {
    width: 100%; background: transparent;
    border: none; border-bottom: 1px solid var(--color-separator);
    padding: 11px 0; color: var(--text-primary);
    font-size: var(--size-callout); font-family: var(--font-text);
    outline: none; appearance: none; cursor: pointer;
    transition: border-color var(--dur-normal);
}
.cyber-select:focus { border-bottom-color: var(--color-accent); }
.cyber-select option { background: var(--color-bg-elevated); color: var(--text-primary); }
.select-label {
    position: absolute; left: 0; top: -12px !important;
    font-size: var(--size-caption) !important;
    color: var(--color-accent) !important;
    font-weight: 600; pointer-events: none; letter-spacing: 0.03em;
}

.checkbox-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cyber-checkbox {
    display: flex; align-items: center; gap: 9px; cursor: pointer;
    background: var(--color-surface);
    padding: 9px 13px; border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    transition: all var(--dur-normal);
    font-family: var(--font-text);
}
.cyber-checkbox:hover { border-color: var(--color-accent-border); background: var(--color-accent-dim); }
.cyber-checkbox input[type="checkbox"] {
    appearance: none; width: 16px; height: 16px;
    border: 1.5px solid var(--text-tertiary);
    border-radius: 4px; outline: none; cursor: pointer;
    position: relative; transition: all var(--dur-normal); flex-shrink: 0;
}
.cyber-checkbox input[type="checkbox"]:checked { background: var(--color-accent); border-color: var(--color-accent); }
.cyber-checkbox input[type="checkbox"]:checked::after {
    content: '✓'; position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%); color: #fff; font-size: 9px; font-weight: 700;
}
.cyber-checkbox span { font-size: var(--size-caption); color: var(--text-secondary); }

.admin-textarea {
    width: 100%; background: rgba(0,0,0,0.45);
    border: 1px solid var(--glass-border); border-radius: var(--radius-md);
    color: var(--color-accent); font-family: 'SF Mono', 'Fira Code', monospace;
    padding: 14px; resize: vertical; outline: none;
    line-height: 1.55; font-size: 0.8rem;
    transition: border-color var(--dur-normal);
}
.admin-textarea:focus { border-color: var(--color-accent-border); }

#code-output {
    flex-grow: 1; width: 100%; background: rgba(0,0,0,0.5);
    border: 1px solid var(--glass-border); border-radius: var(--radius-md);
    color: var(--color-accent); font-family: 'SF Mono', 'Fira Code', monospace;
    padding: 16px; resize: none; min-height: 300px;
    outline: none; line-height: 1.55; transition: border-color var(--dur-normal);
}
#code-output:focus { border-color: var(--color-accent-border); }
.copy-btn { position: absolute; top: 10px; right: 10px; padding: 6px 12px; font-size: 0.75rem; border-radius: var(--radius-sm); }

.form-section { flex: 1.5; }
.result-section { flex: 1; display: flex; flex-direction: column; }
.code-output-wrapper { position: relative; flex-grow: 1; display: flex; flex-direction: column; }
.admin-container { display: flex; gap: 24px; width: 100%; max-width: 1200px; align-items: stretch; }


/* ═══════════════════════════════════════════════════════════
   20. RESPONSIVE
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
    .about-grid,
    .projects-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .section-headline { font-size: clamp(1.75rem, 5vw, 2.5rem); }
    .hero-title { font-size: clamp(2.2rem, 6vw, 3.5rem); }

    .modal-grid { grid-template-columns: 1fr; gap: 24px; }
    .modal-content { height: auto; max-height: 93vh; padding: 28px; }
    .modal-img-container { min-height: 260px; flex-grow: 0; }

    .dashboard-layout { flex-direction: column; height: auto; }
    .admin-sidebar { width: 100%; margin-bottom: 14px; }
}

@media (max-width: 768px) {
    .card { padding: 22px; }
    .project-card { padding: 20px; }
    .timeline-card { padding: 22px; }
    .veille-card { padding: 28px; }

    .modal-content { padding: 22px; width: 96%; }
    .timeline { padding-left: 28px; }
    .timeline::before { left: 6px; }
    .timeline-marker { left: -29px; width: 10px; height: 10px; top: 20px; }
    .form-grid { grid-template-columns: 1fr; }
    .checkbox-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    :root {
        --section-pad: 60px;
    }

    .apple-nav { width: 94%; padding: 6px 12px; }
    .nav-links { gap: 1px; }
    .nav-link { padding: 7px 10px; font-size: 0.78rem; }
    .nav-link span { display: none; }
    .nav-logo { font-size: 0.95rem; }

    .hero-avatar { width: 120px; height: 120px; }
    .hero-bio { font-size: var(--size-footnote); }

    .section-headline { font-size: 1.75rem; }

    .modal-det-title { font-size: var(--size-title-2); margin-bottom: 16px; }
    .modal-content { padding: 16px; height: 96vh; width: 98vw; }
    .close-modal { top: 10px; right: 12px; }
    .modal-text-col h3 { font-size: var(--size-subhead); }
}


/* ═══════════════════════════════════════════════════════════
   21. UTILITIES & REDUCED MOTION
   ═══════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    [data-reveal] {
        opacity: 1 !important;
        transform: none !important;
    }
}