:root {
  --bg-main: #05080f; 
  --bg-alt: rgba(255, 255, 255, 0.02); 
  --bg-card: rgba(15, 23, 42, 0.5); 
  --bg-card-hover: rgba(15, 23, 42, 0.9);
  --bg-nav: rgba(5, 8, 15, 0.85);
  --text-main: #f8fafc; 
  --text-muted: #94a3b8; 
  --text-heading: #ffffff; 
  --accent-primary: #34a853; 
  --accent-primary-hover: #2b8b45;
  --accent-secondary: #0ea5e9; 
  --border-color: #1e293b; 
  --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.3); 
  --nav-shadow: none; 
  --glow-color: rgba(14, 165, 233, 0.06);
  font-family: 'Inter', sans-serif;
}
body.light-mode {
  --bg-main: #f0f4f8; 
  --bg-alt: #ffffff; 
  --bg-card: #ffffff; 
  --bg-card-hover: #ffffff;
  --bg-nav: rgba(255, 255, 255, 1); 
  --text-main: #475569; 
  --text-muted: #64748b; 
  --text-heading: #1e293b; 
  --accent-primary: #34a853; 
  --accent-primary-hover: #2b8b45;
  --accent-secondary: #06b6d4; 
  --border-color: #e2e8f0; 
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03); 
  --card-shadow-hover: 0 20px 25px -5px rgba(6, 182, 212, 0.1), 0 10px 10px -5px rgba(6, 182, 212, 0.04);
  --nav-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  --glow-color: rgba(6, 182, 212, 0.04);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; margin: 0; scroll-behavior: smooth; overflow-x: hidden; }
body { 
  display: flex; flex-direction: column; min-height: 100vh;
  line-height: 1.6; color: var(--text-main); background-color: var(--bg-main);
  transition: background-color 0.4s ease, color 0.4s ease;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(52, 168, 83, 0.05), transparent 40%),
    radial-gradient(circle at 85% 20%, rgba(6, 182, 212, 0.05), transparent 40%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 30px 30px, 30px 30px;
  background-attachment: fixed;
}
body.light-mode {
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(52, 168, 83, 0.08), transparent 40%),
    radial-gradient(circle at 85% 20%, rgba(6, 182, 212, 0.08), transparent 40%),
    linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
}
.mouse-glow { position: fixed; top: 0; left: 0; width: 250px; height: 250px; border-radius: 50%; background: radial-gradient(circle, var(--glow-color), transparent 50%); pointer-events: none; z-index: 999; opacity: 0; transition: opacity 0.5s ease; will-change: transform; }
main { flex: 1; display: flex; flex-direction: column; }
.footer { margin-top: auto; background-color: var(--bg-nav); color: var(--text-muted); text-align: center; padding: 3% 5%; font-size: 0.9rem; border-top: 1px solid var(--border-color); transition: 0.4s; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.footer p { margin-bottom: 5px; }

.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 5%; }
.section-dark { padding: 8vh 0; transition: 0.4s; }
.section-light { background-color: var(--bg-alt); padding: 8vh 0; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); transition: 0.4s; }
.section-title { text-align: center; font-size: 2.2rem; margin-bottom: 10px; color: var(--text-heading); transition: 0.4s; }
.section-subtitle { text-align: center; color: var(--text-muted); margin-bottom: 5vh; max-width: 600px; margin-left: auto; margin-right: auto; transition: 0.4s;}
.page-header { position: relative; padding: 15vh 5% 12vh; text-align: center; border-bottom: 1px solid var(--border-color); background-color: var(--bg-alt); transition: 0.4s; }
.page-header h1 { font-size: 3rem; margin-bottom: 15px; color: var(--text-heading); transition: 0.4s; }
.page-header p { color: var(--accent-primary); font-size: 1.2rem; font-weight: 600; }
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; will-change: opacity, transform; }
.reveal.active { opacity: 1; transform: translateY(0); }

.scroll-indicator { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); font-size: 2rem; color: var(--accent-primary); animation: bounce 2s infinite; cursor: pointer; transition: opacity 0.3s ease, visibility 0.3s ease, color 0.3s ease; z-index: 10; text-decoration: none; }
body.light-mode .scroll-indicator { color: var(--accent-secondary); }
.scroll-indicator:hover { color: var(--text-heading); }
@keyframes bounce { 0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); } 40% { transform: translateY(-15px) translateX(-50%); } 60% { transform: translateY(-7px) translateX(-50%); } }
.fixed-navbar { position: fixed; top: 0; left: 0; width: 100%; background-color: var(--bg-nav); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); z-index: 1000; padding: 15px 0; border-bottom: 1px solid var(--border-color); box-shadow: var(--nav-shadow); transition: 0.4s; }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.nav-left { display: flex; align-items: baseline; gap: 30px; }
.logo { font-weight: 800; font-size: 2rem; letter-spacing: 1px; color: var(--text-heading); text-decoration: none; display: inline-flex; align-items: baseline; position: relative; transition: 0.4s; }
.logo-letters { position: relative; display: inline-block; cursor: pointer; }
.logo:hover .logo-letters { animation: glitch-skew 0.3s infinite linear alternate-reverse; }
.logo:hover .logo-letters::before, .logo:hover .logo-letters::after { content: attr(data-text); position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
.logo:hover .logo-letters::before { color: #0ff; z-index: -1; clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%); transform: translate(-3px, -2px); animation: glitch-anim 0.2s infinite linear alternate-reverse; }
.logo:hover .logo-letters::after { color: #f0f; z-index: -2; clip-path: polygon(0 80%, 100% 20%, 100% 100%, 0 100%); transform: translate(3px, 2px); animation: glitch-anim2 0.3s infinite linear alternate-reverse; }
@keyframes glitch-anim { 0% { transform: translate(-3px, 1px); } 100% { transform: translate(3px, -1px); } }
@keyframes glitch-anim2 { 0% { transform: translate(3px, -1px); } 100% { transform: translate(-3px, 1px); } }
@keyframes glitch-skew { 0% { transform: skew(0deg); } 50% { transform: skew(-5deg); } 100% { transform: skew(5deg); } }
.logo-dot { color: var(--accent-primary); display: inline-block; text-shadow: 0 0 10px var(--accent-primary); animation: pulse-glow 2s infinite ease-in-out; cursor: pointer; }
@keyframes pulse-glow { 0%, 100% { text-shadow: 0 0 5px var(--accent-primary), 0 0 10px rgba(52, 168, 83, 0.4); opacity: 0.8; } 50% { text-shadow: 0 0 15px var(--accent-primary), 0 0 25px var(--accent-primary); opacity: 1; } }
.dot-jump { animation: jump-anim 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards; }
@keyframes jump-anim { 0% { transform: translateY(0) scale(1); } 50% { transform: translateY(-15px) scale(1.2); } 100% { transform: translateY(0) scale(1); } }
.nav-links { display: flex; align-items: center; }
.nav-links a { color: var(--text-muted); text-decoration: none; margin-left: 25px; font-size: 0.9rem; font-weight: 500; transition: color 0.3s; }
.nav-links a:hover, .nav-links a.active-link { color: var(--accent-primary); font-weight: 600; }
.nav-socials { display: inline-flex; }
.nav-socials a { color: var(--text-muted); margin-left: 20px; font-size: 1.2rem; transition: color 0.3s, transform 0.3s; }
.nav-socials a:hover { color: var(--accent-secondary); transform: translateY(-2px); } 
.hamburger { display: none; font-size: 1.8rem; color: var(--text-heading); cursor: pointer; transition: 0.4s; }

#hero-section { position: relative; padding-top: 18vh; padding-bottom: 15vh; }
.hero-container { display: flex; align-items: center; justify-content: space-between; max-width: 950px; margin: 0 auto; gap: 50px; width: 100%; }
.hero-content { flex: 1; }
.hero-content h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); margin-bottom: 20px; line-height: 1.1; color: var(--text-heading); transition: 0.4s; }
.hero-content p { color: var(--text-muted); margin-bottom: 30px; font-size: 1.1rem; transition: 0.4s; }
.hero-buttons { display: flex; gap: 15px; flex-wrap: wrap; }
.hero-image img { width: 100%; max-width: 300px; aspect-ratio: 1/1; border-radius: 50%; object-fit: cover; border: 4px solid var(--border-color); box-shadow: var(--card-shadow); transition: 0.4s; }

.timelines-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 5%; align-items: start; }
.timeline { position: relative; padding: 10px 0; }
.timeline::before { content: ''; position: absolute; top: 0; left: 10px; width: 2px; height: 100%; background: var(--border-color); }
.timeline-item { display: flex; align-items: flex-start; margin-bottom: 40px; position: relative; padding-left: 40px; }
.timeline-dot { position: absolute; left: 10px; width: 20px; height: 20px; background: var(--accent-primary); border: 4px solid var(--bg-main); border-radius: 50%; transform: translateX(-50%); box-shadow: 0 0 10px rgba(52, 168, 83, 0.4); z-index: 2; transition: 0.4s; }
body.light-mode .timeline-dot { background: var(--accent-secondary); box-shadow: 0 0 10px rgba(6, 182, 212, 0.4); }
.timeline-content { width: 100%; background: var(--bg-card); padding: 25px; border-radius: 12px; border: 1px solid var(--border-color); box-shadow: var(--card-shadow); transition: 0.4s; }
.timeline-content:hover { transform: translateY(-5px); border-color: var(--accent-primary); background: var(--bg-card-hover); }
body.light-mode .timeline-content:hover { border-color: var(--accent-secondary); }
.timeline-date { color: var(--accent-primary); font-weight: 700; font-size: 0.9rem; margin-bottom: 10px; display: inline-block; background: rgba(52, 168, 83, 0.1); padding: 5px 12px; border-radius: 20px; transition: 0.4s; }
body.light-mode .timeline-date { color: var(--accent-secondary); background: rgba(6, 182, 212, 0.1); }
.timeline-content h3 { color: var(--text-heading); margin-bottom: 5px; font-size: 1.2rem; }
.timeline-content h4 { color: var(--text-muted); font-size: 0.95rem; font-weight: 500; margin-bottom: 12px; }
.timeline-content p { color: var(--text-muted); font-size: 0.95rem; }

.passions-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: 25px; grid-auto-rows: 380px; }
.passion-card { background: var(--bg-card); border-radius: 16px; border: 1px solid var(--border-color); overflow: hidden; position: relative; display: flex; align-items: flex-end; padding: 25px; text-decoration: none; cursor: pointer; transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease; box-shadow: var(--card-shadow); }
.passion-card:hover { transform: translateY(-5px); border-color: var(--accent-primary); box-shadow: var(--card-shadow-hover); }
body.light-mode .passion-card:hover { border-color: var(--accent-secondary); }
.passion-img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: 1; opacity: 0.6; transition: 0.5s ease; filter: grayscale(30%); }
.passion-card:hover .passion-img { opacity: 0.9; transform: scale(1.05); filter: grayscale(0%); }
.passion-card.is-open .passion-img { filter: grayscale(80%) brightness(0.3); transform: scale(1.05); }
.passion-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(to top, rgba(5, 8, 15, 1) 10%, transparent 80%); z-index: 2; transition: 0.4s; }
body.light-mode .passion-overlay { background: linear-gradient(to top, rgba(15, 23, 42, 0.9) 10%, transparent 80%); }
.passion-card.is-open .passion-overlay { background: rgba(5, 8, 15, 0.85); }
body.light-mode .passion-card.is-open .passion-overlay { background: rgba(15, 23, 42, 0.85); }
.passion-info { position: relative; z-index: 3; width: 100%; display: flex; flex-direction: column; justify-content: flex-end; height: 100%; }
.passion-header { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.passion-header h3 { color: #ffffff; margin: 0; font-size: 1.3rem; display: flex; align-items: center; gap: 12px; text-shadow: 0 2px 5px rgba(0,0,0,0.8); }
.passion-header h3 i { color: var(--accent-primary); font-size: 1.5rem; transition: 0.3s; text-shadow: none; }
body.light-mode .passion-header h3 i { color: var(--accent-secondary); }
.passion-toggle-icon { color: white; font-size: 1.1rem; transition: 0.4s ease; text-shadow: 0 2px 5px rgba(0,0,0,0.8); }
.passion-card.is-open .passion-toggle-icon { transform: rotate(180deg); color: var(--accent-primary); }
body.light-mode .passion-card.is-open .passion-toggle-icon { color: var(--accent-secondary); }
.passion-desc { max-height: 0; opacity: 0; overflow: hidden; transition: all 0.4s ease; margin-top: 0; color: #cbd5e1; font-size: 0.95rem; line-height: 1.5; text-shadow: 0 1px 3px rgba(0,0,0,0.9); }
.passion-card.is-open .passion-desc { max-height: 300px; opacity: 1; margin-top: 15px; }
body.light-mode .passion-card.no-img .passion-header h3 { color: var(--text-heading); text-shadow: none; }

.expertise-grid, .skills-category-grid, .work-grid { display: grid; gap: 30px; max-width: 1000px; margin: 0 auto; width: 100%; }
.expertise-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); }
.skills-category-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }
.work-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.expertise-card, .skill-card, .work-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, background 0.4s ease; box-shadow: var(--card-shadow); }
.expertise-card { padding: 30px; text-align: center; }
.skill-card { padding: 25px; backdrop-filter: blur(5px); }
.work-card { overflow: hidden; display: flex; flex-direction: column; cursor: pointer; }
.expertise-card:hover, .skill-card:hover, .work-card:hover { transform: translateY(-8px); background: var(--bg-card-hover); box-shadow: var(--card-shadow-hover); border-color: var(--accent-primary); }
body.light-mode .expertise-card:hover, body.light-mode .skill-card:hover, body.light-mode .work-card:hover { border-color: var(--accent-secondary); }
.skill-card-special { background-image: linear-gradient(to bottom right, rgba(30, 41, 59, 0.4), rgba(15, 23, 42, 0.6)); }
body.light-mode .skill-card-special { background-image: linear-gradient(to bottom right, #ffffff, #f1f8fc); }
.expertise-card i { font-size: 2.5rem; color: var(--accent-primary); margin-bottom: 20px; transition: color 0.3s; }
body.light-mode .expertise-card:hover i { color: var(--accent-secondary); } 
.expertise-card h3, .work-card h4 { color: var(--text-heading); transition: 0.4s; }
.expertise-card h3 { margin-bottom: 15px; font-size: 1.2rem; }
.expertise-card p, .work-card p { color: var(--text-muted); font-size: 0.95rem; transition: 0.4s;}
.skill-card-header { font-size: 1.2rem; font-weight: 600; color: var(--text-heading); margin-bottom: 20px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--border-color); padding-bottom: 15px; transition: 0.4s; }
.stack-icons { display: flex; gap: 10px; flex-wrap: wrap; }
.stack-icons span { display: flex; align-items: center; gap: 8px; background: var(--bg-main); border: 1px solid var(--border-color); padding: 8px 16px; border-radius: 20px; font-size: 0.85rem; font-weight: 500; color: var(--text-main); transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.stack-icons span:hover { color: var(--hover-color, var(--text-heading)); border-color: var(--hover-color, var(--accent-secondary)); background: var(--bg-card); transform: translateY(-3px) scale(1.08); box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2); }
body.light-mode .stack-icons span:hover { box-shadow: 0 8px 15px rgba(6, 182, 212, 0.15); }
.stack-icons span i { color: inherit; }
.stack-icons span i.fa-rust { color: #e43716; } .stack-icons span i.fa-python { color: #3776ab; } .stack-icons span i.fa-java { color: #f8981d; } .stack-icons span i.fa-php { color: #777bb4; } .stack-icons span i.fa-js { color: #f7df1e; } .stack-icons span i.fa-database { color: #336791; } .stack-icons span i.fa-docker { color: #2496ed; } .stack-icons span i.fa-jenkins { color: #d33833; } .stack-icons span i.fa-terminal { color: #4eaa25; } .stack-icons span i.fa-git-alt { color: #f05032; } .stack-icons span i.fa-network-wired { color: #0ea5e9; } .stack-icons span i.fa-bug { color: #e11d48; } .stack-icons span i.fa-lock { color: #eab308; } .stack-icons span i.fa-html5 { color: #e34f26; } .stack-icons span i.fa-css3-alt { color: #1572b6; } .stack-icons span i.fa-react { color: #61dafb; }

.placeholder-img { width: 100%; height: 300px; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; display: flex; justify-content: center; align-items: center; font-size: 4rem; color: var(--text-muted); box-shadow: var(--card-shadow); transition: 0.4s; overflow: hidden; }
.placeholder-img img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s ease; }
.case-study:hover .placeholder-img img { transform: scale(1.05); }

.card-img { height: 160px; background-color: var(--bg-alt); display: flex; justify-content: center; align-items: center; font-size: 3rem; color: var(--text-muted); border-bottom: 1px solid var(--border-color); transition: 0.4s; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s ease; }
.work-card:hover .card-img img { transform: scale(1.05); }

.card-content { padding: 25px; flex-grow: 1; display: flex; flex-direction: column; }
.card-content h4 { font-size: 1.2rem; margin-bottom: 10px; }
.card-content p { margin-bottom: 15px; flex-grow: 1; }
.text-link { color: var(--accent-primary); text-decoration: none; font-weight: 600; font-size: 0.9rem; transition: color 0.3s; }
body.light-mode .work-card:hover .text-link { color: var(--accent-secondary); }

.btn-primary { display: inline-flex; align-items: center; justify-content: center; background-color: var(--accent-primary); color: white; padding: 12px 28px; border-radius: 6px; text-decoration: none; font-weight: 600; border: none; transition: 0.3s; }
.btn-primary:hover { background-color: var(--accent-primary-hover); box-shadow: 0 5px 15px rgba(52, 168, 83, 0.3); transform: translateY(-2px); }
.btn-secondary { display: inline-flex; align-items: center; justify-content: center; background-color: transparent; color: var(--text-heading); padding: 10px 24px; border: 2px solid var(--text-heading); border-radius: 6px; text-decoration: none; font-weight: 600; transition: 0.4s; }
.btn-secondary:hover { background-color: var(--text-heading); color: var(--bg-main); transform: translateY(-2px); }

.case-study { display: flex; align-items: center; gap: 5%; margin-bottom: 8vh; width: 100%; }
.case-study.reverse { flex-direction: row-reverse; }
.case-text { flex: 1; }
.badge { display: inline-block; color: var(--accent-primary); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; margin-bottom: 15px; letter-spacing: 1px; background: rgba(52,168,83,0.1); padding: 5px 12px; border-radius: 4px; transition: 0.4s; }
body.light-mode .badge { color: var(--accent-secondary); background: rgba(6, 182, 212, 0.1); } 
.case-text h3 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 15px; color: var(--text-heading); transition: 0.4s; }
.case-text p { color: var(--text-muted); margin-bottom: 25px; font-size: 1.05rem; }
.case-image { flex: 1; }

.contact-grid { display: grid; grid-template-columns: 3fr 2fr; gap: 5%; max-width: 1000px; margin: 0 auto; align-items: start; width: 100%; }
.contact-form { padding: 40px; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; box-shadow: var(--card-shadow); transition: 0.3s ease; }
.contact-form h3 { margin-bottom: 25px; font-size: 1.5rem; color: var(--text-heading); }
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 25px; } 
.form-group label { color: var(--text-muted); font-size: 0.9rem; font-weight: 600; }
.form-group input, .form-group textarea { padding: 15px; background-color: var(--bg-main); border: 1px solid var(--border-color); border-radius: 6px; color: var(--text-main); font-family: inherit; font-size: 1rem; transition: 0.4s; width: 100%; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent-secondary); box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15); } 
#form-status { margin-top: 15px; font-size: 0.95rem; text-align: center; height: 20px; }

.contact-links-grid { display: flex; flex-direction: column; gap: 16px; width: 100%; }
.contact-card-link { display: flex; align-items: center; padding: 22px 25px; background: var(--bg-main); border: 1px solid var(--border-color); border-radius: 16px; text-decoration: none; position: relative; transition: all 0.3s ease; }
.contact-card-link:hover { border-color: var(--accent-primary); transform: translateY(-2px); background: var(--bg-card);}
body.light-mode .contact-card-link:hover { border-color: var(--accent-secondary); }
.contact-card-icon { font-size: 1.6rem; color: var(--text-muted); margin-right: 20px; transition: 0.3s; }
.contact-card-link:hover .contact-card-icon { color: var(--accent-primary); }
body.light-mode .contact-card-link:hover .contact-card-icon { color: var(--accent-secondary); }
.contact-card-info { display: flex; flex-direction: column; gap: 4px; }
.contact-card-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 2px; color: var(--text-muted); font-weight: 600; opacity: 0.8; }
.contact-card-value { font-size: 1rem; font-weight: 600; color: var(--text-heading); transition: 0.3s; word-break: break-word; }
.contact-card-arrow { position: absolute; top: 22px; right: 25px; font-size: 0.85rem; color: var(--text-muted); opacity: 0.5; transition: 0.3s; }
.contact-card-link:hover .contact-card-arrow { color: var(--accent-primary); opacity: 1; transform: translate(3px, -3px); }
body.light-mode .contact-card-link:hover .contact-card-arrow { color: var(--accent-secondary); }

@media (max-width: 900px) { 
  .contact-grid { grid-template-columns: 1fr; gap: 30px; } 
  .timelines-wrapper { grid-template-columns: 1fr; gap: 30px; } 
}
@media (max-width: 768px) {
  .fixed-navbar { padding: 15px 20px; }
  .hamburger { display: block; }
  .nav-links { position: absolute; top: 100%; left: 0; width: 100%; background-color: var(--bg-nav); flex-direction: column; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--border-color); box-shadow: 0 10px 15px rgba(0,0,0,0.1); opacity: 0; visibility: hidden; transform: translateY(-10px); transition: all 0.3s ease; }
  .nav-links.active { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-links a { margin: 15px 0; font-size: 1.1rem; text-align: center; width: 100%; margin-left: 0; }
  .nav-socials { margin-top: 15px; padding-top: 20px; border-top: 1px solid var(--border-color); width: 80%; display: flex; justify-content: center; margin-left: 0; padding-left: 0; border-left: none; }
  .nav-socials a { margin: 0 15px; font-size: 1.4rem; }
  
  /* CORRECTIF PADDING MOBILE */
  #hero-section { padding-top: 120px; padding-bottom: 100px; }
  .page-header { padding-top: 120px; padding-bottom: 100px; }
  
  .hero-container, .case-study { flex-direction: column; text-align: center; }
  .case-study.reverse { flex-direction: column; }
  .hero-content h1 { font-size: 2.8rem; }
  .hero-buttons { justify-content: center; }
  .expertise-grid, .skills-category-grid { grid-template-columns: 1fr; }
  .contact-links-grid { grid-template-columns: 1fr; }
  .placeholder-img { height: 200px; }
  .contact-form { padding: 25px; }
}