/* Nadia Metoui - Professional Portfolio Styles
   Separated Presentation Layer
*/
    :root {
      --ink: #1c1c1a;
      --ink-mid: #3d3d38;
      --ink-muted: #6b6b62;
      --ink-faint: #a0a097;
      --paper: #f6f3ee;
      --paper-warm: #ede9e1;
      --paper-card: #ffffff;
      --accent: #2d6a4f;
      --accent-mid: #3a856a;
      --accent-light: #d8ede4;
      --accent-pale: #eef7f2;
      --accent-deep: #1b4332;
      --rule: #d8d3c8;
      --serif: 'Playfair Display', Georgia, serif;
      --sans: 'DM Sans', system-ui, sans-serif;
      --r: 10px;
      --shadow: 0 2px 12px rgba(0,0,0,0.06);
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: var(--sans); background: var(--paper); color: var(--ink); line-height: 1.7; font-size: 15px; }

    /* NAV */
    nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      display: flex; align-items: center; justify-content: space-between;
      padding: 16px 60px;
      background: rgba(246,243,238,0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--rule);
    }
    .nav-logo { font-family: var(--serif); font-size: 16px; color: var(--ink); text-decoration: none; }
    .nav-links { display: flex; gap: 28px; list-style: none; }
    .nav-links a {
      text-decoration: none; color: var(--ink-muted); font-size: 12px; font-weight: 500;
      letter-spacing: 0.08em; text-transform: uppercase; transition: color 0.2s;
    }
    .nav-links a:hover { color: var(--accent); }
    .nav-cta { background: var(--accent); color: #fff !important; padding: 7px 16px; border-radius: 20px; }
    .nav-cta:hover { background: var(--accent-deep) !important; }

    /* HERO */
    .hero { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; padding-top: 58px; }
    .hero-text { display: flex; flex-direction: column; justify-content: center; padding: 80px 56px 80px 80px; }
    .hero-eyebrow {
      font-size: 11px; font-weight: 500; letter-spacing: 0.14em;
      text-transform: uppercase; color: var(--accent); margin-bottom: 18px;
      display: flex; align-items: center; gap: 10px;
    }
    .hero-eyebrow::after { content: ''; flex: 0 0 32px; height: 1px; background: var(--accent); }
    .hero-name { font-family: var(--serif); font-size: clamp(44px, 4.5vw, 66px); line-height: 1.06; color: var(--ink); margin-bottom: 8px; }
    .hero-name em { font-style: italic; color: var(--accent); }
    .hero-title { font-family: var(--serif); font-size: 15px; font-style: italic; color: var(--ink-muted); margin-bottom: 28px; }
    .hero-bio { color: var(--ink-muted); font-size: 14.5px; line-height: 1.85; max-width: 440px; margin-bottom: 26px; }
    .hero-quote {
      border-left: 2px solid var(--accent-light); padding-left: 16px;
      font-family: var(--serif); font-style: italic; color: var(--ink-faint);
      font-size: 13.5px; margin-bottom: 32px; line-height: 1.6;
    }
    .hero-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 36px; }
    .tag {
      background: var(--accent-pale); color: var(--accent-deep);
      font-size: 11.5px; font-weight: 500; padding: 4px 12px;
      border-radius: 20px; border: 1px solid var(--accent-light);
    }
    .hero-actions { display: flex; gap: 14px; align-items: center; }
    .btn-primary {
      background: var(--accent); color: #fff; padding: 11px 24px;
      border-radius: var(--r); text-decoration: none; font-weight: 500; font-size: 13.5px;
      transition: background 0.2s, transform 0.15s; display: inline-block;
    }
    .btn-primary:hover { background: var(--accent-deep); transform: translateY(-1px); }
    .btn-ghost {
      color: var(--ink-muted); font-size: 13.5px; text-decoration: none;
      border-bottom: 1px dashed var(--rule); padding-bottom: 1px;
      transition: color 0.2s, border-color 0.2s;
    }
    .btn-ghost:hover { color: var(--accent); border-color: var(--accent); }

    .hero-visual { background: var(--paper-warm); position: relative; overflow: hidden; display: flex; align-items: flex-end; justify-content: center; }
    .hero-visual-bg { position: absolute; inset: 0; background: radial-gradient(ellipse at 60% 40%, #b7dfc9 0%, var(--paper-warm) 65%); opacity: 0.65; }
    .hero-deco { position: absolute; border-radius: 50%; }
    .hero-deco-1 { width: 180px; height: 180px; top: 8%; right: 6%; background: var(--accent-light); opacity: 0.55; }
    .hero-deco-2 { width: 90px; height: 90px; bottom: 26%; left: 5%; background: var(--accent); opacity: 0.08; }
    .hero-deco-3 { width: 50px; height: 50px; top: 40%; left: 12%; background: var(--accent-mid); opacity: 0.12; }
    .hero-visual-content { position: relative; z-index: 1; width: 100%; height: 100%; display: flex; align-items: flex-end; justify-content: center; }
    .hero-photo-frame {
      width: 72%; max-width: 360px; aspect-ratio: 3/4;
      background: var(--accent-light); border-radius: 20px 20px 0 0; overflow: hidden;
    }
    .hero-photo-frame img { width: 100%; height: 100%; object-fit: cover; object-position: center top; display: block; }
    .hero-placeholder { width: 100%; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; padding: 32px; }
    .hero-placeholder p { font-size: 12px; color: var(--ink-muted); text-align: center; font-style: italic; }

    /* STATS STRIP */
    .stats-strip {
      background: var(--accent); padding: 26px 80px;
      display: flex; justify-content: space-around; align-items: center; flex-wrap: wrap; gap: 20px;
    }
    .stat-item { text-align: center; }
    .stat-num { font-family: var(--serif); font-size: 30px; color: #fff; line-height: 1; margin-bottom: 4px; }
    .stat-label { font-size: 10.5px; color: rgba(255,255,255,0.68); letter-spacing: 0.09em; text-transform: uppercase; }
    .stat-div { width: 1px; height: 36px; background: rgba(255,255,255,0.18); }

    /* SECTIONS */
    section { padding: 88px 80px; }
    section.alt-bg { background: var(--paper-warm); }
    .section-intro { display: flex; align-items: baseline; gap: 12px; margin-bottom: 52px; }
    .section-num { font-family: var(--serif); font-size: 12px; color: var(--accent); font-style: italic; flex-shrink: 0; }
    h2 { font-family: var(--serif); font-size: clamp(28px, 2.8vw, 40px); color: var(--ink); }

    /* ABOUT */
    .about-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 64px; align-items: start; }
    .about-text p { color: var(--ink-muted); line-height: 1.85; margin-bottom: 16px; font-size: 14.5px; }
    .about-text p strong { color: var(--ink-mid); font-weight: 500; }
    .about-text p:last-child { margin-bottom: 0; }
    .skills-section h3 { font-family: var(--serif); font-size: 17px; font-style: italic; color: var(--ink); margin-bottom: 18px; }
    .skill-group { margin-bottom: 16px; }
    .skill-label { font-size: 10.5px; font-weight: 500; letter-spacing: 0.09em; text-transform: uppercase; color: var(--accent); margin-bottom: 7px; }
    .skill-tags { display: flex; flex-wrap: wrap; gap: 5px; }
    .skill-tag { background: var(--paper-card); border: 1px solid var(--rule); color: var(--ink-muted); font-size: 12px; padding: 3px 10px; border-radius: 4px; }
    .lang-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin-top: 4px; }
    .lang-item { display: flex; align-items: center; justify-content: space-between; padding: 5px 8px; background: var(--paper-card); border-radius: 5px; border: 1px solid var(--rule); }
    .lang-name { font-size: 12.5px; color: var(--ink-mid); }
    .lang-level { font-size: 11px; font-weight: 500; color: var(--accent); }

    /* TIMELINE */
    .timeline-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 0 64px; }
    .timeline-col-title { font-family: var(--serif); font-size: 19px; font-style: italic; color: var(--ink); margin-bottom: 30px; }
    .timeline { position: relative; padding-left: 18px; }
    .timeline::before { content: ''; position: absolute; left: 0; top: 8px; bottom: 8px; width: 1px; background: var(--rule); }
    .timeline-item { position: relative; padding-left: 22px; margin-bottom: 34px; }
    .timeline-item::before {
      content: ''; position: absolute; left: -18px; top: 8px;
      width: 7px; height: 7px; border-radius: 50%;
      background: var(--accent); border: 2px solid var(--paper-warm);
      outline: 1px solid var(--accent);
    }
    .t-date { font-size: 10.5px; font-weight: 500; letter-spacing: 0.07em; text-transform: uppercase; color: var(--accent); margin-bottom: 3px; }
    .t-role { font-family: var(--serif); font-size: 15.5px; color: var(--ink); line-height: 1.3; margin-bottom: 2px; }
    .t-org { font-size: 13px; color: var(--ink-muted); margin-bottom: 6px; }
    .t-desc { font-size: 13px; color: var(--ink-faint); line-height: 1.65; }

    /* PUBLICATIONS */
    .pub-filter { display: flex; gap: 8px; margin-bottom: 30px; flex-wrap: wrap; }
    .filter-btn {
      background: none; border: 1px solid var(--rule); color: var(--ink-muted);
      padding: 5px 14px; border-radius: 20px; font-size: 12px; font-family: var(--sans);
      cursor: pointer; transition: all 0.2s;
    }
    .filter-btn:hover, .filter-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
    .pub-list { display: flex; flex-direction: column; gap: 12px; }
    .pub-item {
      background: var(--paper-card); border: 1px solid var(--rule);
      border-radius: var(--r); padding: 18px 22px;
      transition: border-color 0.2s, box-shadow 0.2s;
      display: flex; gap: 18px; align-items: flex-start;
    }
    .pub-item:hover { border-color: var(--accent-mid); box-shadow: var(--shadow); }
    .pub-idx { font-family: var(--serif); font-size: 20px; color: var(--accent-light); font-weight: 600; flex-shrink: 0; line-height: 1; padding-top: 4px; min-width: 26px; text-align: right; }
    .pub-body { flex: 1; }
    .pub-badge {
      display: inline-block; font-size: 10px; font-weight: 500; letter-spacing: 0.09em;
      text-transform: uppercase; color: var(--accent-deep);
      background: var(--accent-pale); border: 1px solid var(--accent-light);
      padding: 2px 8px; border-radius: 3px; margin-bottom: 6px;
    }
    .pub-title { font-family: var(--serif); font-size: 14.5px; color: var(--ink); line-height: 1.4; margin-bottom: 5px; }
    .pub-title a { color: inherit; text-decoration: none; }
    .pub-title a:hover { color: var(--accent); }
    .pub-authors { font-size: 12px; color: var(--ink-faint); margin-bottom: 4px; }
    .pub-venue { font-size: 12.5px; color: var(--ink-muted); font-style: italic; }
    .pub-year { font-size: 11.5px; color: var(--ink-faint); margin-top: 2px; }

    /* BLOG */
    .blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
    .blog-card {
      background: var(--paper-card); border: 1px solid var(--rule);
      border-radius: var(--r); padding: 26px 24px;
      transition: border-color 0.2s, transform 0.15s; display: flex; flex-direction: column;
    }
    .blog-card:hover { border-color: var(--accent-mid); transform: translateY(-2px); }
    .blog-tag { font-size: 10.5px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
    .blog-title { font-family: var(--serif); font-size: 16.5px; color: var(--ink); line-height: 1.35; margin-bottom: 10px; }
    .blog-excerpt { font-size: 13px; color: var(--ink-muted); line-height: 1.7; flex: 1; }
    .blog-date { font-size: 11.5px; color: var(--ink-faint); margin-top: 14px; }
    .blog-coming {
      margin-top: 22px; background: var(--accent-pale); border: 1px dashed var(--accent-light);
      border-radius: var(--r); padding: 24px 28px; text-align: center;
      color: var(--ink-muted); font-style: italic; font-size: 14px;
    }
    .blog-coming strong { color: var(--accent); font-style: normal; }

    /* CONTACT */
    .contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
    .contact-text p { color: var(--ink-muted); font-size: 14.5px; line-height: 1.8; margin-bottom: 18px; }
    .contact-details { display: flex; flex-direction: column; gap: 12px; }
    .contact-item { display: flex; align-items: center; gap: 12px; font-size: 13.5px; color: var(--ink-muted); }
    .contact-item a { color: inherit; text-decoration: none; transition: color 0.2s; }
    .contact-item a:hover { color: var(--accent); }
    .c-icon { width: 34px; height: 34px; background: var(--accent-pale); border: 1px solid var(--accent-light); border-radius: 8px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 14px; }
    .contact-box { background: var(--paper-card); border: 1px solid var(--rule); border-radius: var(--r); padding: 32px; }
    .contact-box h3 { font-family: var(--serif); font-size: 20px; color: var(--ink); margin-bottom: 8px; }
    .contact-box > p { font-size: 13.5px; color: var(--ink-muted); margin-bottom: 22px; line-height: 1.65; }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .form-group { margin-bottom: 13px; }
    .form-group label { display: block; font-size: 10.5px; font-weight: 500; letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-muted); margin-bottom: 5px; }
    .form-group input, .form-group textarea, .form-group select {
      width: 100%; background: var(--paper); border: 1px solid var(--rule);
      border-radius: 7px; padding: 9px 13px; font-family: var(--sans);
      font-size: 13.5px; color: var(--ink); outline: none; transition: border-color 0.2s;
      appearance: none;
    }
    .form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--accent); }
    .form-group textarea { min-height: 94px; resize: vertical; }
    .form-submit { width: 100%; background: var(--accent); color: #fff; border: none; border-radius: var(--r); padding: 12px; font-family: var(--sans); font-size: 14px; font-weight: 500; cursor: pointer; transition: background 0.2s; }
    .form-submit:hover { background: var(--accent-deep); }

    /* FOOTER */
    footer { background: var(--ink); color: rgba(255,255,255,0.38); padding: 36px 80px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; }
    .footer-left { font-family: var(--serif); font-size: 15px; color: rgba(255,255,255,0.6); }
    .footer-credit { font-size: 11.5px; font-style: italic; }
    .footer-right { font-size: 12px; }
    .footer-right a { color: rgba(255,255,255,0.38); text-decoration: none; margin-left: 18px; transition: color 0.2s; }
    .footer-right a:hover { color: #fff; }

    /* RESPONSIVE */
    @media (max-width: 960px) {
      nav { padding: 14px 22px; }
      .nav-links { gap: 14px; }
      section { padding: 56px 24px; }
      .hero { grid-template-columns: 1fr; }
      .hero-text { padding: 88px 24px 40px; }
      .hero-visual { height: 300px; }
      .stats-strip { padding: 24px 24px; }
      .about-grid, .timeline-cols, .contact-layout { grid-template-columns: 1fr; gap: 36px; }
      .blog-grid { grid-template-columns: 1fr; }
      .form-row { grid-template-columns: 1fr; }
      footer { padding: 28px 24px; flex-direction: column; text-align: center; }
      .footer-right a { margin: 0 8px; }
    }