:root {
  --clr-bg: #0a0a0f;
  --clr-bg-2: #10101a;
  --clr-bg-card: #13131f;
  --clr-bg-glass: rgba(255, 255, 255, 0.04);
  --clr-border: rgba(255, 255, 255, 0.08);
  --clr-border-2: rgba(255, 255, 255, 0.14);

  --clr-accent: #1a6fff;
  --clr-accent-2: #56b4ff;
  --clr-accent-3: #8ad4ff;
  --clr-accent-glow: rgba(26, 111, 255, 0.35);
  --clr-accent-light: #6aaeff;

  --clr-text: #f0f0f8;
  --clr-text-muted: #7a7a9a;
  --clr-text-dim: #444460;

  --clr-navbar-bg: rgba(10, 10, 15, 0.88);
  --clr-modal-bg: rgba(0, 0, 0, 0.92);

  /* Group colors — biru tua ke biru muda */
  --grp-1: #0a2f8a;
  --grp-2: #1452cc;
  --grp-3: #1a6fff;
  --grp-4: #2a8ff5;
  --grp-5: #56b4ff;
  --grp-6: #7ecfff;
  --grp-7: #a8e0ff;
  --grp-8: #d0f0ff;

  --font-display: 'Syne', sans-serif;
  --font-mono: 'Space Mono', monospace;
  --font-body: 'DM Sans', sans-serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);

  --shadow-glow: 0 0 30px var(--clr-accent-glow);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.5);

  --toggle-bg: rgba(26, 111, 255, 0.2);
  --toggle-border: rgba(26, 111, 255, 0.4);

  /* Student card glow vars */
  --card-glow-x: 50%;
  --card-glow-y: 50%;
}

/* Light Theme */
[data-theme="light"] {
  --clr-bg: #f5f5ff;
  --clr-bg-2: #ebebfa;
  --clr-bg-card: #ffffff;
  --clr-bg-glass: rgba(255, 255, 255, 0.6);
  --clr-border: rgba(0, 0, 0, 0.08);
  --clr-border-2: rgba(0, 0, 0, 0.14);

  --clr-accent: #1452cc;
  --clr-accent-2: #2a7de8;
  --clr-accent-3: #5ab0f5;
  --clr-accent-glow: rgba(20, 82, 204, 0.25);
  --clr-accent-light: #1452cc;

  --clr-text: #0f0f1a;
  --clr-text-muted: #555570;
  --clr-text-dim: #9090b0;

  --clr-navbar-bg: rgba(245, 245, 255, 0.92);
  --clr-modal-bg: rgba(245, 245, 255, 0.97);

  --shadow-card: 0 4px 24px rgba(20, 82, 204, 0.1);
}

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

html { scroll-behavior:smooth; scroll-padding-top:72px; }

body {
  background-color: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img   { max-width:100%; display:block; }
a     { text-decoration:none; color:inherit; }
ul    { list-style:none; }
button{ border:none; background:none; cursor:pointer; font-family:inherit; }

/* ==================== SCROLLBAR ==================== */
::-webkit-scrollbar       { width:5px; }
::-webkit-scrollbar-track { background:var(--clr-bg); }
::-webkit-scrollbar-thumb { background:var(--clr-accent); border-radius:var(--radius-full); }
::selection { background:var(--clr-accent); color:#fff; }

/* ==================== LAYOUT ==================== */
.container { max-width:1200px; margin:0 auto; padding:0 var(--spacing-md); }
.section   { padding:var(--spacing-2xl) 0; }

/* ==================== REVEAL ==================== */
.reveal { opacity:0; transform:translateY(30px); transition:opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity:1; transform:translateY(0); }
.reveal-delay-1 { transition-delay:.1s; }
.reveal-delay-2 { transition-delay:.2s; }
.reveal-delay-3 { transition-delay:.35s; }
.reveal-delay-4 { transition-delay:.5s; }

/* ==================== SECTION HEADER ==================== */
.section-header { text-align:center; margin-bottom:var(--spacing-xl); }

.section-tag {
  font-family:var(--font-mono);
  font-size:.8rem;
  color:var(--clr-accent);
  letter-spacing:.1em;
  text-transform:uppercase;
  display:block;
  margin-bottom:var(--spacing-xs);
}

.section-title {
  font-family:var(--font-display);
  font-size:clamp(2rem,5vw,3rem);
  font-weight:800;
  line-height:1.1;
  margin-bottom:var(--spacing-sm);
  background:linear-gradient(135deg,var(--clr-text) 0%,var(--clr-accent-light) 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

.section-desc { font-size:1.05rem; color:var(--clr-text-muted); max-width:520px; margin:0 auto; }

/* ==================== BUTTONS ==================== */
.btn {
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.75rem 1.75rem; border-radius:var(--radius-full);
  font-family:var(--font-display); font-size:.95rem; font-weight:600;
  cursor:pointer; transition:var(--transition);
  position:relative; overflow:hidden;
}
.btn::before {
  content:''; position:absolute; inset:0; opacity:0;
  transition:opacity .3s; background:rgba(255,255,255,.1);
}
.btn:hover::before { opacity:1; }
.btn-primary {
  background:var(--clr-accent); color:#fff;
  box-shadow:0 4px 20px var(--clr-accent-glow);
}
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 30px var(--clr-accent-glow); }
.btn-outline {
  background:transparent; color:var(--clr-text);
  border:1px solid var(--clr-border-2);
}
.btn-outline:hover { border-color:var(--clr-accent); color:var(--clr-accent); transform:translateY(-2px); }

/* ==================== NAVBAR ==================== */
.navbar {
  position:fixed; top:0; left:0; right:0; z-index:1000;
  height:72px; display:flex; align-items:center;
  transition:var(--transition); border-bottom:1px solid transparent;
}
.navbar.scrolled {
  background:rgba(10,10,15,.85);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--clr-border);
}
.nav-container {
  max-width:1200px; width:100%; margin:0 auto;
  padding:0 var(--spacing-md);
  display:flex; align-items:center; justify-content:space-between;
}
.nav-logo {
  font-family:var(--font-display); font-size:1.3rem; font-weight:800;
  color:var(--clr-text); letter-spacing:-.02em; transition:var(--transition);
}
.nav-logo:hover { color:var(--clr-accent); }
.logo-bracket { color:var(--clr-accent); font-weight:400; }

.nav-links { display:flex; align-items:center; gap:var(--spacing-lg); }

.nav-link {
  font-family:var(--font-mono); font-size:.82rem; letter-spacing:.05em;
  color:var(--clr-text-muted); text-transform:uppercase;
  position:relative; transition:var(--transition); padding-bottom:4px;
}
.nav-link::after {
  content:''; position:absolute; bottom:0; left:0;
  width:0; height:2px; background:var(--clr-accent);
  transition:width .3s ease; border-radius:var(--radius-full);
}
.nav-link:hover,.nav-link.active { color:var(--clr-text); }
.nav-link:hover::after,.nav-link.active::after { width:100%; }

/* Hamburger */
.nav-toggle { display:none; flex-direction:column; gap:5px; padding:6px; z-index:1001; }
.nav-toggle span { display:block; width:24px; height:2px; background:var(--clr-text); border-radius:2px; transition:var(--transition); }
.nav-toggle.open span:nth-child(1) { transform:translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity:0; transform:scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform:translateY(-7px) rotate(-45deg); }

/* ==================== HERO ==================== */
.hero {
  min-height:100vh; display:flex; align-items:center;
  position:relative; overflow:hidden; padding:120px 0 80px;
}
.hero-bg-grid {
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(124,106,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(124,106,255,.06) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse at center,rgba(0,0,0,.8) 0%,transparent 70%);
}
.hero-noise {
  position:absolute; inset:0;
  background:radial-gradient(ellipse at 70% 50%, rgba(20, 7, 255, 0.18) 0%, transparent 65%),
             radial-gradient(ellipse at 30% 80%, rgba(7, 115, 178, 0.12) 0%, transparent 55%);
  pointer-events:none;
}
.hero-container {
  max-width:1200px; margin:0 auto;
  padding:0 var(--spacing-md); position:relative; z-index:2;
}
.hero-badge {
  display:inline-flex; align-items:center; gap:.5rem;
  background:var(--clr-bg-glass); border:1px solid var(--clr-border);
  border-radius:var(--radius-full); padding:.4rem 1rem;
  font-family:var(--font-mono); font-size:.78rem;
  color:var(--clr-text-muted); margin-bottom:var(--spacing-md);
  backdrop-filter:blur(8px);
}
.badge-dot {
  width:7px; height:7px; background:#22e87a;
  border-radius:50%; animation:pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%,100%{ box-shadow:0 0 0 0 rgba(34,232,122,.5); }
  50%    { box-shadow:0 0 0 6px rgba(34,232,122,0); }
}

.hero-title { display:flex; flex-direction:column; margin-bottom:var(--spacing-md); }
.title-line { font-family:var(--font-display); font-weight:800; line-height:1.05; display:block; }
.title-line:first-child { font-size:clamp(2rem,5vw,3.5rem); color:var(--clr-text-muted); }
.title-accent {
  font-size:clamp(2.8rem,8vw,5.8rem);
  background:linear-gradient(135deg,var(--clr-accent) 0%,var(--clr-accent-2) 100%);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
  filter:drop-shadow(0 0 40px var(--clr-accent-glow));
}
.title-sub {
  font-size:clamp(.9rem,2vw,1.2rem); font-family:var(--font-mono);
  font-weight:400; color:var(--clr-text-muted);
  letter-spacing:.15em; margin-top:var(--spacing-xs);
}
.hero-desc { font-size:1.1rem; color:var(--clr-text-muted); max-width:500px; margin-bottom:var(--spacing-lg); line-height:1.8; }
.hero-cta  { display:flex; gap:var(--spacing-sm); flex-wrap:wrap; margin-bottom:var(--spacing-xl); }

.hero-stats { display:flex; align-items:center; gap:var(--spacing-lg); flex-wrap:wrap; }
.stat-item  { text-align:left; }
.stat-number { display:block; font-family:var(--font-display); font-size:2rem; font-weight:800; color:var(--clr-text); line-height:1; }
.stat-label  { font-family:var(--font-mono); font-size:.75rem; color:var(--clr-text-muted); text-transform:uppercase; letter-spacing:.1em; }
.stat-divider { width:1px; height:40px; background:var(--clr-border-2); }

.hero-deco {
  position:absolute; font-family:var(--font-display); font-weight:800;
  color:transparent; -webkit-text-stroke:1px rgba(124,106,255,.12);
  user-select:none; pointer-events:none; z-index:1;
  animation:float-deco 8s ease-in-out infinite;
}
.deco-1 { font-size:clamp(4rem,10vw,8rem); right:-2%; top:15%; animation-delay:0s; }
.deco-2 {
  font-size:clamp(3rem,8vw,6rem); right:5%; bottom:20%; animation-delay:4s;
  -webkit-text-stroke:1px rgba(255,106,176,.12);
}
@keyframes float-deco {
  0%,100%{ transform:translateY(0px) rotate(-3deg); }
  50%    { transform:translateY(-20px) rotate(3deg); }
}
.hero-scroll-hint {
  position:absolute; bottom:2rem; left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:.4rem;
  font-family:var(--font-mono); font-size:.7rem;
  color:var(--clr-text-dim); letter-spacing:.1em;
  animation:bounce-hint 2s ease-in-out infinite; z-index:3;
}
@keyframes bounce-hint {
  0%,100%{ transform:translateX(-50%) translateY(0); }
  50%    { transform:translateX(-50%) translateY(8px); }
}

/* ==================== ABOUT ==================== */
.about-section { background:var(--clr-bg-2); position:relative; }
.about-section::before {
  content:''; position:absolute; top:0; left:0; right:0; height:1px;
  background:linear-gradient(90deg,transparent,var(--clr-accent),transparent);
}
.about-grid {
  display:grid; grid-template-columns:1fr 1.6fr;
  gap:var(--spacing-xl); align-items:start;
}
.about-photo-wrap { position:relative; display:flex; flex-direction:column; align-items:center; gap:1rem; }
.about-photo {
  position:relative; width:280px; height:280px;
  border-radius:var(--radius-lg); overflow:hidden;
}
.about-photo-placeholder {
  width:100%; height:100%;
  background:linear-gradient(135deg,var(--clr-bg-card) 0%,var(--clr-bg) 100%);
  display:flex; align-items:center; justify-content:center;
  border:1px solid var(--clr-border);
  border-radius:var(--radius-lg);
}
.about-photo-placeholder i {
  font-size:5rem; color:var(--clr-text-dim);
}
.geser{
  transform: translateY(40px);
}
.about-photo-frame {
  position:absolute; inset:-6px; border:2px solid var(--clr-accent);
  border-radius:calc(var(--radius-lg) + 6px); opacity:.4;
  animation:frame-pulse 3s ease-in-out infinite;
}
@keyframes frame-pulse {
  0%,100%{ opacity:.4; transform:scale(1); }
  50%    { opacity:.7; transform:scale(1.01); }
}
.about-photo-tag {
  display:inline-flex; align-items:center; gap:.5rem;
  background:var(--clr-bg-glass); border:1px solid var(--clr-border);
  border-radius:var(--radius-full); padding:.4rem 1rem;
  font-family:var(--font-mono); font-size:.75rem; color:var(--clr-text-muted);
}
.about-content { display:flex; flex-direction:column; gap:var(--spacing-lg); }
.about-text p  { color:var(--clr-text-muted); line-height:1.85; margin-bottom:.8rem; }
.about-text strong { color:var(--clr-accent-light); font-weight:600; }

.about-details { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.detail-item   { background:var(--clr-bg-card); border:1px solid var(--clr-border); border-radius:var(--radius-md); padding:1rem; }
.detail-label  { display:block; font-family:var(--font-mono); font-size:.72rem; color:var(--clr-accent); letter-spacing:.05em; text-transform:uppercase; margin-bottom:.3rem; }
.detail-label i{ margin-right:.4rem; }
.detail-value  { font-size:.9rem; color:var(--clr-text); font-weight:500; }

/* ==================== SKILLS ==================== */
.skills-section { background:var(--clr-bg); }
.skills-categories { display:grid; grid-template-columns:repeat(3,1fr); gap:var(--spacing-md); margin-bottom:var(--spacing-xl); }

.skill-category {
  background:var(--clr-bg-card); border:1px solid var(--clr-border);
  border-radius:var(--radius-lg); padding:var(--spacing-md);
  transition:var(--transition);
}
.skill-category:hover { border-color:var(--clr-accent); transform:translateY(-4px); box-shadow:var(--shadow-card),0 0 20px var(--clr-accent-glow); }

.skill-category-header {
  display:flex; align-items:center; gap:.6rem;
  font-family:var(--font-display); font-weight:700; font-size:1rem;
  color:var(--clr-text); margin-bottom:var(--spacing-sm);
}
.skill-category-header i { color:var(--clr-accent); font-size:1rem; }

.skill-tags { display:flex; flex-wrap:wrap; gap:.5rem; }
.skill-tag  {
  font-family:var(--font-mono); font-size:.72rem;
  padding:.3rem .7rem; border-radius:var(--radius-full);
  background:rgba(124,106,255,.1); color:var(--clr-accent-light);
  border:1px solid rgba(124,106,255,.2); transition:var(--transition);
}
.skill-tag:hover { background:var(--clr-accent); color:#fff; border-color:var(--clr-accent); }

/* Skill bars */
.skill-bars { display:flex; flex-direction:column; gap:var(--spacing-md); }
.skill-bar-item {}
.skill-bar-header {
  display:flex; justify-content:space-between; align-items:center;
  margin-bottom:.6rem;
}
.skill-bar-name { font-family:var(--font-display); font-size:.95rem; font-weight:600; color:var(--clr-text); }
.skill-bar-pct  { font-family:var(--font-mono); font-size:.8rem; color:var(--clr-accent); }
.skill-bar-track {
  height:6px; background:var(--clr-bg-card);
  border-radius:var(--radius-full); overflow:hidden;
  border:1px solid var(--clr-border);
}
.skill-bar-fill {
  height:100%; width:0;
  background:linear-gradient(90deg,var(--clr-accent),var(--clr-accent-2));
  border-radius:var(--radius-full);
  transition:width 1.2s cubic-bezier(0.4,0,0.2,1);
}

/* ==================== PROJECTS ==================== */
.projects-section { background:var(--clr-bg-2); position:relative; }
.projects-section::before {
  content:''; position:absolute; top:0; left:0; right:0; height:1px;
  background:linear-gradient(90deg,transparent,var(--clr-accent-2),transparent);
}

/* Filter Buttons */
.gallery-filter { display:flex; gap:var(--spacing-xs); justify-content:center; flex-wrap:wrap; margin-bottom:var(--spacing-lg); }
.filter-btn {
  font-family:var(--font-mono); font-size:.8rem; letter-spacing:.05em;
  padding:.5rem 1.2rem; border-radius:var(--radius-full);
  border:1px solid var(--clr-border); color:var(--clr-text-muted);
  transition:var(--transition); background:transparent;
}
.filter-btn:hover,.filter-btn.active { background:var(--clr-accent); border-color:var(--clr-accent); color:#fff; }

/* Portfolio grid — same as reference */
.portfolio-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:var(--spacing-md); }

.portfolio-card {
  background:var(--clr-bg-card); border:1px solid var(--clr-border);
  border-radius:var(--radius-lg); overflow:hidden;
  transition:var(--transition); animation:fadeIn .4s ease both;
  display:flex; flex-direction:column;
}
.portfolio-card:hover {
  border-color:var(--clr-accent); transform:translateY(-6px);
  box-shadow:var(--shadow-card),0 0 30px var(--clr-accent-glow);
}
@keyframes fadeIn {
  from{ opacity:0; transform:scale(.95); }
  to  { opacity:1; transform:scale(1);  }
}

.portfolio-img-wrap {
  aspect-ratio:16/9; overflow:hidden;
  background:var(--clr-bg-2); position:relative;
}
.portfolio-img-wrap img { width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.portfolio-card:hover .portfolio-img-wrap img { transform:scale(1.06); }
.img-contain{
    object-fit: contain !important;
    background: #fff;
    padding: 10px;
}
.portfolio-badge {
  position:absolute; top:.75rem; left:.75rem;
  background:var(--clr-accent); color:#fff;
  font-family:var(--font-mono); font-size:.68rem;
  letter-spacing:.08em; text-transform:uppercase;
  padding:.25rem .6rem; border-radius:var(--radius-full);
}

.portfolio-body { padding:var(--spacing-md); flex:1; display:flex; flex-direction:column; }

.portfolio-author { display:flex; align-items:center; gap:.6rem; margin-bottom:.75rem; }
.portfolio-avatar {
  width:32px; height:32px; border-radius:50%;
  background:linear-gradient(135deg,var(--clr-accent),var(--clr-accent-2));
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-size:.75rem; font-weight:700;
  color:#fff; flex-shrink:0;
}
.portfolio-author-name { font-family:var(--font-mono); font-size:.78rem; color:var(--clr-text-muted); }

.portfolio-title { font-family:var(--font-display); font-size:1.1rem; font-weight:700; color:var(--clr-text); margin-bottom:.5rem; line-height:1.3; }
.portfolio-desc  { font-size:.88rem; color:var(--clr-text-muted); line-height:1.6; flex:1; margin-bottom:var(--spacing-sm); }

.portfolio-tags  { display:flex; gap:.4rem; flex-wrap:wrap; margin-bottom:var(--spacing-sm); }
.portfolio-tag   {
  font-family:var(--font-mono); font-size:.7rem;
  padding:.2rem .6rem; border-radius:var(--radius-full);
  background:rgba(124,106,255,.12); color:var(--clr-accent-light);
  border:1px solid rgba(124,106,255,.2);
}

.portfolio-link {
  display:inline-flex; align-items:center; gap:.4rem;
  font-family:var(--font-mono); font-size:.8rem;
  color:var(--clr-accent); transition:gap .2s; margin-top:auto;
}
.portfolio-link:hover { gap:.7rem; }

/* ==================== CONTACT ==================== */
.contact-section { background:var(--clr-bg); }

.contact-grid {
  display:grid; grid-template-columns:1fr 1.5fr; gap:var(--spacing-xl); align-items:start;
}

.contact-info { display:flex; flex-direction:column; gap:var(--spacing-md); }
.contact-item {
  display:flex; align-items:center; gap:var(--spacing-sm);
  background:var(--clr-bg-card); border:1px solid var(--clr-border);
  border-radius:var(--radius-md); padding:var(--spacing-sm) var(--spacing-md);
  transition:var(--transition);
}
.contact-item:hover { border-color:var(--clr-accent); transform:translateX(4px); }

.contact-icon {
  width:44px; height:44px; border-radius:50%; flex-shrink:0;
  background:rgba(124,106,255,.12); border:1px solid rgba(124,106,255,.2);
  display:flex; align-items:center; justify-content:center;
  color:var(--clr-accent); font-size:1rem;
}
.contact-label { display:block; font-family:var(--font-mono); font-size:.7rem; color:var(--clr-text-muted); text-transform:uppercase; letter-spacing:.08em; margin-bottom:.15rem; }
.contact-value { font-size:.95rem; color:var(--clr-text); font-weight:500; transition:color .2s; }
.contact-item:hover .contact-value { color:var(--clr-accent); }

/* Contact Form */
.contact-form { display:flex; flex-direction:column; gap:var(--spacing-md); }
.form-group   { display:flex; flex-direction:column; gap:.4rem; }
.form-label   { font-family:var(--font-mono); font-size:.75rem; color:var(--clr-text-muted); text-transform:uppercase; letter-spacing:.08em; }
.form-input   {
  background:var(--clr-bg-card); border:1px solid var(--clr-border);
  border-radius:var(--radius-md); color:var(--clr-text);
  font-family:var(--font-body); font-size:.95rem;
  padding:.75rem 1rem; outline:none; transition:var(--transition);
  resize:none;
}
.form-input:focus { border-color:var(--clr-accent); box-shadow:0 0 0 3px var(--clr-accent-glow); }
.form-input::placeholder { color:var(--clr-text-dim); }
.form-textarea { min-height:130px; resize:vertical; }

.form-success {
  display:none; align-items:center; gap:.6rem;
  background:rgba(34,232,122,.1); border:1px solid rgba(34,232,122,.3);
  border-radius:var(--radius-md); padding:var(--spacing-sm) var(--spacing-md);
  font-family:var(--font-mono); font-size:.85rem; color:#22e87a;
}
.form-success.show { display:flex; }

/* ==================== FOOTER ==================== */
.footer { background:var(--clr-bg); border-top:1px solid var(--clr-border); padding:var(--spacing-xl) 0 var(--spacing-md); }

.footer-inner {
  display:grid; grid-template-columns:1fr auto auto;
  gap:var(--spacing-xl); align-items:start;
  margin-bottom:var(--spacing-lg); padding-bottom:var(--spacing-lg);
  border-bottom:1px solid var(--clr-border);
}
.footer-brand .nav-logo { font-size:1.2rem; display:inline-block; margin-bottom:.75rem; }
.footer-brand p { font-size:.88rem; color:var(--clr-text-muted); max-width:260px; line-height:1.7; }

.footer-links { display:flex; flex-direction:column; gap:.6rem; }
.footer-links a {
  font-family:var(--font-mono); font-size:.82rem;
  color:var(--clr-text-muted); letter-spacing:.05em;
  text-transform:uppercase; transition:color .2s;
}
.footer-links a:hover { color:var(--clr-accent); }

.footer-social { display:flex; flex-direction:column; gap:.6rem; align-items:flex-end; }
.social-link {
  width:36px; height:36px; border-radius:50%;
  border:1px solid var(--clr-border);
  display:flex; align-items:center; justify-content:center;
  color:var(--clr-text-muted); font-size:.9rem; transition:var(--transition);
}
.social-link:hover { background:var(--clr-accent); border-color:var(--clr-accent); color:#fff; transform:scale(1.1); }

.footer-bottom { text-align:center; font-family:var(--font-mono); font-size:.78rem; color:var(--clr-text-dim); }
.footer-bottom i { color:var(--clr-accent-2); margin:0 2px; }

/* ==================== BACK TO TOP ==================== */
.back-to-top {
  position:fixed; bottom:2rem; right:2rem;
  width:44px; height:44px; background:var(--clr-accent);
  color:#fff; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:.9rem; transition:var(--transition);
  opacity:0; pointer-events:none; transform:translateY(10px);
  z-index:999; box-shadow:0 4px 20px var(--clr-accent-glow);
}
.back-to-top.visible { opacity:1; pointer-events:all; transform:translateY(0); }
.back-to-top:hover   { transform:translateY(-3px); box-shadow:0 8px 30px var(--clr-accent-glow); }

/* ==================== EMPTY STATE ==================== */
.empty-state {
  grid-column:1/-1; text-align:center;
  padding:var(--spacing-xl); color:var(--clr-text-muted);
  font-family:var(--font-mono); font-size:.9rem;
}
.empty-state i { font-size:2rem; margin-bottom:var(--spacing-sm); display:block; color:var(--clr-text-dim); }

/* ==================== RESPONSIVE ==================== */
@media (max-width:1024px) {
  .about-grid       { grid-template-columns:1fr; }
  .about-photo-wrap { align-items:flex-start; flex-direction:row; gap:var(--spacing-md); }
  .about-photo      { width:200px; height:200px; flex-shrink:0; }
  .skills-categories{ grid-template-columns:1fr 1fr; }
  .contact-grid     { grid-template-columns:1fr; }
}
@media (max-width:900px) {
  .footer-inner  { grid-template-columns:1fr; gap:var(--spacing-lg); }
  .footer-social { flex-direction:row; align-items:flex-start; }
  .hero-deco     { display:none; }
}
@media (max-width:768px) {
  .nav-toggle { display:flex; }
  .nav-links  {
    position:fixed; top:0; right:0;
    width:260px; height:100vh;
    background:rgba(10,10,15,.97); backdrop-filter:blur(20px);
    flex-direction:column; justify-content:center; align-items:flex-start;
    padding:var(--spacing-xl) var(--spacing-lg);
    transform:translateX(100%); transition:transform .4s cubic-bezier(.4,0,.2,1);
    border-left:1px solid var(--clr-border);
    gap:var(--spacing-md); z-index:1000;
  }
  .nav-links.open { transform:translateX(0); }
  .nav-link { font-size:1rem; }

  .about-photo-wrap { flex-direction:column; }
  .about-photo { width:100%; height:240px; }
  .about-details { grid-template-columns:1fr; }
  .skills-categories { grid-template-columns:1fr; }
  .portfolio-grid    { grid-template-columns:1fr; }
  .hero { padding:100px 0 60px; }
  .section { padding:var(--spacing-xl) 0; }
}
@media (max-width:480px) {
  .hero-cta { flex-direction:column; }
  .hero-cta .btn { width:100%; justify-content:center; }
  .back-to-top { bottom:1rem; right:1rem; }
}