@charset "UTF-8";

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

:root {
  --bg-primary: #030810;
  --bg-secondary: #0a1128;
  --bg-card: rgba(10,17,40,0.72);
  --bg-card-hover: rgba(10,17,40,0.88);
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --cyan: #00f0ff;
  --cyan-dim: rgba(0,240,255,0.12);
  --cyan-glow: rgba(0,240,255,0.25);
  --purple: #7c3aed;
  --purple-dim: rgba(124,58,237,0.12);
  --green: #06d6a0;
  --green-dim: rgba(6,214,160,0.12);
  --pink: #ff006e;
  --orange: #f97316;
  --orange-dim: rgba(249,115,22,0.12);
  --blue: #3b82f6;
  --blue-dim: rgba(59,130,246,0.12);
  --yellow: #fbbf24;
  --red: #ef4444;
  --border-subtle: rgba(0,240,255,0.08);
  --border-light: rgba(0,240,255,0.18);
  --font-sans: 'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;
  --font-mono: 'Consolas','Courier New',monospace;
  --radius: 12px;
  --radius-lg: 16px;
  --transition: .3s ease;
}

html { scroll-behavior:smooth; font-size:16px }
body { font-family:var(--font-sans); background:var(--bg-primary); color:var(--text-primary); direction:rtl; line-height:1.7; overflow-x:hidden; min-height:100vh }
a { text-decoration:none; color:inherit }

::-webkit-scrollbar { width:5px }
::-webkit-scrollbar-track { background:var(--bg-primary) }
::-webkit-scrollbar-thumb { background:var(--cyan-glow); border-radius:3px }

/* ===== PARTICLES ===== */
#particles-canvas { position:fixed; top:0; left:0; width:100%; height:100%; pointer-events:none; z-index:0; opacity:.45 }
#neural-canvas { position:fixed; top:0; left:0; width:100%; height:100%; pointer-events:none; z-index:0; opacity:.15 }

/* ===== NAVBAR ===== */
.navbar { position:fixed; top:0; left:0; right:0; z-index:1000; padding:12px 0; transition:all .4s ease }
.navbar.scrolled { background:rgba(3,8,16,0.92); backdrop-filter:blur(20px); border-bottom:1px solid var(--border-subtle); box-shadow:0 4px 30px rgba(0,0,0,0.3) }
.navbar.hidden { transform:translateY(-100%) }
.navbar-inner { max-width:1400px; margin:0 auto; padding:0 24px; display:flex; align-items:center; justify-content:space-between; gap:16px }

.nav-logo { display:flex; align-items:center; gap:12px; cursor:pointer }
.nav-logo-icon { position:relative; width:42px; height:42px }
.nav-logo-icon .bg { position:absolute; inset:0; border-radius:50%; border:2px solid var(--cyan); animation:spin 8s linear infinite; opacity:.6 }
.nav-logo-icon .inner { position:absolute; inset:3px; border-radius:50%; background:linear-gradient(135deg, var(--cyan), var(--purple)); display:flex; align-items:center; justify-content:center }
.nav-logo-icon .inner span { color:#fff; font-weight:700; font-size:14px; letter-spacing:1px }
.nav-logo-text .name { font-size:15px; font-weight:600; color:var(--text-primary) }
.nav-logo-text .sub { font-size:11px; color:var(--text-muted); letter-spacing:.5px }

.nav-links { display:flex; align-items:center; gap:6px; list-style:none; flex-wrap:wrap }
.nav-links a { padding:6px 14px; border-radius:8px; font-size:13px; color:var(--text-secondary); transition:all var(--transition); white-space:nowrap }
.nav-links a:hover { color:var(--cyan); background:var(--cyan-dim) }
.nav-links a.active { color:var(--cyan); background:var(--cyan-dim) }
.nav-links a.nav-highlight { color:var(--yellow); background:rgba(251,191,36,0.1); border:1px solid rgba(251,191,36,0.2) }
.nav-links a.nav-highlight:hover { background:rgba(251,191,36,0.2) }

.nav-meta { display:flex; align-items:center; gap:12px }
.shamsi-date { font-size:11px; color:var(--cyan); font-family:var(--font-mono); background:var(--cyan-dim); padding:4px 10px; border-radius:6px }
.ai-indicator { display:flex; align-items:center; gap:6px; font-size:11px; color:var(--green); padding:4px 10px; border-radius:6px; background:var(--green-dim) }
.ai-dot { width:6px; height:6px; border-radius:50%; background:var(--green); animation:pulseGlow 2s ease-in-out infinite }

.mobile-toggle { display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:4px }
.mobile-toggle span { display:block; width:22px; height:2px; background:var(--cyan); border-radius:2px; transition:all .3s }

/* ===== HERO ===== */
.hero { min-height:100vh; display:flex; align-items:center; justify-content:center; position:relative; padding:120px 24px 60px }
.hero-content { text-align:center; position:relative; z-index:1; max-width:900px; margin:0 auto }
.hero-badge { display:inline-flex; align-items:center; gap:8px; padding:6px 18px; border-radius:20px; background:var(--purple-dim); border:1px solid rgba(124,58,237,0.2); font-size:13px; color:var(--purple); margin-bottom:24px }
.badge-dot { width:8px; height:8px; border-radius:50%; background:var(--purple); animation:pulseGlow 2s ease-in-out infinite }
.hero-title { font-size:clamp(32px, 5vw, 56px); font-weight:800; line-height:1.3; margin-bottom:16px }
.gradient-text { background:linear-gradient(135deg, var(--cyan), var(--purple)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text }
.hero-sub { font-size:clamp(16px, 2.5vw, 22px); color:var(--text-secondary); margin-bottom:8px }
.hero-desc { font-size:15px; color:var(--text-muted); margin-bottom:32px }

.hero-stats { display:flex; justify-content:center; gap:32px; margin-bottom:32px; flex-wrap:wrap }
.stat-item { text-align:center }
.stat-number { font-size:32px; font-weight:800; color:var(--cyan); font-family:var(--font-mono) }
.stat-label { font-size:12px; color:var(--text-muted); margin-top:4px }

.hero-actions { display:flex; gap:16px; justify-content:center; flex-wrap:wrap }
.btn-primary { padding:12px 28px; border-radius:10px; background:linear-gradient(135deg, var(--cyan), var(--purple)); color:#fff; border:none; font-size:14px; font-weight:600; cursor:pointer; display:flex; align-items:center; gap:8px; transition:all var(--transition) }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 30px rgba(0,240,255,0.3) }
.btn-outline { padding:12px 28px; border-radius:10px; background:transparent; color:var(--cyan); border:1px solid var(--cyan); font-size:14px; font-weight:600; cursor:pointer; display:flex; align-items:center; gap:8px; transition:all var(--transition) }
.btn-outline:hover { background:var(--cyan-dim) }

.hero-glow { position:absolute; top:20%; left:50%; transform:translateX(-50%); width:600px; height:600px; border-radius:50%; background:radial-gradient(circle, rgba(0,240,255,0.08) 0%, transparent 70%); pointer-events:none }
.hero-shamsi-clock { position:absolute; bottom:30px; left:50%; transform:translateX(-50%); font-size:13px; color:var(--text-muted); font-family:var(--font-mono); background:var(--bg-card); padding:8px 20px; border-radius:8px; border:1px solid var(--border-subtle) }

/* ===== SECTIONS ===== */
.section { padding:80px 0; position:relative; z-index:1 }
.section-alt { background:linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%) }
.container { max-width:1200px; margin:0 auto; padding:0 24px }

.section-header { text-align:center; margin-bottom:48px }
.section-tag { display:inline-flex; align-items:center; gap:8px; padding:5px 16px; border-radius:20px; background:var(--cyan-dim); border:1px solid var(--border-light); font-size:12px; color:var(--cyan); margin-bottom:12px }
.section-title { font-size:clamp(24px, 4vw, 36px); font-weight:700; margin-bottom:8px }
.section-desc { font-size:15px; color:var(--text-muted); max-width:600px; margin:0 auto }
.section-link { display:inline-flex; align-items:center; gap:6px; color:var(--cyan); font-size:13px; margin-top:12px; transition:all var(--transition) }
.section-link:hover { gap:10px }

/* ===== ABOUT ===== */
.about-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(260px, 1fr)); gap:20px }
.about-card { background:var(--bg-card); border:1px solid var(--border-subtle); border-radius:var(--radius-lg); padding:28px; transition:all var(--transition) }
.about-card:hover { border-color:var(--border-light); background:var(--bg-card-hover); transform:translateY(-4px) }
.about-icon { width:48px; height:48px; border-radius:12px; display:flex; align-items:center; justify-content:center; margin-bottom:16px }
.purple-icon { background:var(--purple-dim); color:var(--purple) }
.cyan-icon { background:var(--cyan-dim); color:var(--cyan) }
.green-icon { background:var(--green-dim); color:var(--green) }
.orange-icon { background:var(--orange-dim); color:var(--orange) }
.about-card h3 { font-size:17px; margin-bottom:8px; }
.about-card p { font-size:14px; color:var(--text-secondary); line-height:1.8 }

/* ===== TIMELINE ===== */
.timeline { max-width:700px; margin:0 auto; position:relative }
.timeline::before { content:''; position:absolute; right:24px; top:0; bottom:0; width:2px; background:linear-gradient(to bottom, var(--cyan), var(--purple)) }
.timeline-item { padding-right:60px; margin-bottom:32px; position:relative }
.timeline-dot { position:absolute; right:20px; top:4px; width:10px; height:10px; border-radius:50%; background:var(--cyan); box-shadow:0 0 15px var(--cyan-glow) }
.timeline-year { font-size:13px; color:var(--cyan); font-family:var(--font-mono); margin-bottom:4px }
.timeline-content h3 { font-size:17px; margin-bottom:6px }
.timeline-content p { font-size:14px; color:var(--text-secondary) }

/* ===== EXPERIENCE ===== */
.exp-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(280px, 1fr)); gap:20px }
.exp-card { background:var(--bg-card); border:1px solid var(--border-subtle); border-radius:var(--radius-lg); padding:24px; transition:all var(--transition) }
.exp-card:hover { border-color:var(--border-light); transform:translateY(-4px) }
.exp-card.highlight-project { border-color:rgba(251,191,36,0.3); background:rgba(251,191,36,0.04) }
.exp-header { display:flex; align-items:center; gap:14px; margin-bottom:12px }
.exp-icon { width:44px; height:44px; border-radius:10px; display:flex; align-items:center; justify-content:center; flex-shrink:0 }
.ceo-icon { background:var(--orange-dim); color:var(--orange) }
.board-icon { background:var(--purple-dim); color:var(--purple) }
.prof-icon { background:var(--cyan-dim); color:var(--cyan) }
.project-icon { background:rgba(251,191,36,0.12); color:var(--yellow) }
.exp-header h3 { font-size:15px }
.exp-company { font-size:12px; color:var(--text-muted) }
.exp-card p { font-size:14px; color:var(--text-secondary) }

/* ===== SKILLS ===== */
.skills-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(260px, 1fr)); gap:20px }
.skill-category { background:var(--bg-card); border:1px solid var(--border-subtle); border-radius:var(--radius-lg); padding:24px }
.cat-title { display:flex; align-items:center; gap:10px; font-size:15px; margin-bottom:16px }
.skill-tags { display:flex; flex-wrap:wrap; gap:8px }
.skill-tags span { padding:5px 12px; border-radius:8px; font-size:12px; background:var(--cyan-dim); color:var(--cyan); border:1px solid rgba(0,240,255,0.12); transition:all var(--transition) }
.skill-tags span:hover { background:rgba(0,240,255,0.2); transform:translateY(-1px) }

/* ===== ECOSYSTEM ===== */
.ecosystem-grid { display:flex; flex-wrap:wrap; justify-content:center; gap:20px; padding:20px 0 }
.eco-node { width:90px; height:90px; border-radius:50%; display:flex; flex-direction:column; align-items:center; justify-content:center; border:2px solid var(--border-light); background:var(--bg-card); font-size:12px; font-weight:600; position:relative; transition:all var(--transition) }
.eco-node:hover { transform:scale(1.1); border-color:var(--cyan); box-shadow:0 0 25px var(--cyan-glow) }
.eco-node span { color:var(--text-secondary) }
.eco-node.n-core { border-color:var(--cyan); background:linear-gradient(135deg, rgba(0,240,255,0.1), rgba(124,58,237,0.1)) }
.eco-node.n-core span { color:var(--cyan) }
.eco-ring { position:absolute; inset:-6px; border-radius:50%; border:1px dashed rgba(0,240,255,0.3); animation:spin 12s linear infinite }

/* ===== RESEARCH & TEACHING ===== */
.research-grid, .teaching-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(280px, 1fr)); gap:20px }
.research-card, .teach-card { background:var(--bg-card); border:1px solid var(--border-subtle); border-radius:var(--radius-lg); padding:24px; transition:all var(--transition) }
.research-card:hover, .teach-card:hover { border-color:var(--border-light); transform:translateY(-4px) }
.research-tag { display:inline-block; padding:4px 12px; border-radius:6px; font-size:11px; background:var(--purple-dim); color:var(--purple); margin-bottom:12px }
.research-card h3, .teach-card h3 { font-size:15px; margin-bottom:8px }
.research-card p, .teach-card p { font-size:13px; color:var(--text-secondary) }
.teach-icon { width:44px; height:44px; border-radius:10px; background:var(--cyan-dim); color:var(--cyan); display:flex; align-items:center; justify-content:center; margin-bottom:14px }

/* ================================================================== */
/* ===== ENGINEERING TOOLS SECTION ===== */
/* ================================================================== */
.section-tools {
  background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(0,240,255,0.02) 50%, var(--bg-primary) 100%);
  position: relative;
}
.section-tools::before {
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg, transparent, var(--cyan), transparent);
}

/* Tools Tabs */
.tools-tabs {
  display:flex; gap:8px; justify-content:center; flex-wrap:wrap;
  margin-bottom:32px; padding:0 24px;
}
.tool-tab {
  padding:10px 18px; border-radius:10px; border:1px solid var(--border-subtle);
  background:var(--bg-card); color:var(--text-secondary); font-size:13px;
  cursor:pointer; display:flex; align-items:center; gap:8px;
  transition:all var(--transition); font-family:var(--font-sans);
}
.tool-tab:hover { border-color:var(--border-light); color:var(--cyan); background:var(--cyan-dim) }
.tool-tab.active {
  border-color:var(--cyan); color:var(--cyan); background:var(--cyan-dim);
  box-shadow:0 0 20px rgba(0,240,255,0.15);
}

/* Tool Panel */
.tool-panel { display:none }
.tool-panel.active { display:block; animation:fadeInUp .4s ease }

.tool-container {
  background:var(--bg-card); border:1px solid var(--border-subtle);
  border-radius:var(--radius-lg); padding:28px; overflow:hidden;
  position:relative;
}
.tool-container::before {
  content:''; position:absolute; top:0; right:0; width:200px; height:200px;
  background:radial-gradient(circle, rgba(0,240,255,0.04), transparent 70%);
  pointer-events:none;
}

.tool-info-bar {
  display:flex; align-items:center; gap:12px; padding:14px 18px;
  background:rgba(0,240,255,0.04); border:1px solid var(--border-subtle);
  border-radius:10px; margin-bottom:24px; font-size:13px; color:var(--text-secondary);
}
.tool-info-icon { color:var(--cyan); flex-shrink:0; display:flex }

/* Tool Form */
.tool-form { margin-bottom:24px }
.form-row {
  display:grid; grid-template-columns:repeat(auto-fit, minmax(180px, 1fr));
  gap:16px; margin-bottom:16px;
}
.form-group label {
  display:block; font-size:12px; color:var(--text-muted);
  margin-bottom:6px; font-weight:500;
}
.form-group input, .form-group select, .form-group textarea {
  width:100%; padding:10px 14px; border-radius:8px;
  background:rgba(0,0,0,0.3); border:1px solid var(--border-subtle);
  color:var(--text-primary); font-size:14px; font-family:var(--font-mono);
  transition:all var(--transition); direction:ltr; text-align:right;
}
.form-group select { cursor:pointer; appearance:auto; direction:rtl }
.form-group textarea { resize:vertical; min-height:100px; direction:rtl }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline:none; border-color:var(--cyan); box-shadow:0 0 0 3px var(--cyan-dim);
}

.btn-tool {
  padding:10px 24px; border-radius:8px; border:none;
  background:linear-gradient(135deg, var(--cyan), var(--purple));
  color:#fff; font-size:14px; font-weight:600; cursor:pointer;
  display:flex; align-items:center; gap:8px; justify-content:center;
  transition:all var(--transition); white-space:nowrap;
  font-family:var(--font-sans);
}
.btn-tool:hover { transform:translateY(-2px); box-shadow:0 6px 25px rgba(0,240,255,0.3) }

/* Tool Results */
.tool-results {
  min-height:100px; position:relative;
}

.result-placeholder {
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:16px; padding:40px; color:var(--text-muted); font-size:13px;
  border:1px dashed var(--border-subtle); border-radius:10px;
}

.result-grid {
  display:grid; grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));
  gap:16px;
}

.result-item {
  background:rgba(0,0,0,0.2); border:1px solid var(--border-subtle);
  border-radius:10px; padding:18px; transition:all var(--transition);
}
.result-item:hover { border-color:var(--border-light) }
.result-label { font-size:11px; color:var(--text-muted); margin-bottom:6px; text-transform:uppercase; letter-spacing:.5px }
.result-value { font-size:15px; font-weight:600; font-family:var(--font-mono); color:var(--text-primary); word-break:break-all }
.result-bin { font-size:11px; color:var(--text-muted); font-family:var(--font-mono); margin-top:4px; word-break:break-all }
.result-code { font-size:12px; word-break:break-all; line-height:1.5 }

.result-big {
  border-color:var(--cyan); background:rgba(0,240,255,0.04);
}
.result-highlight {
  font-size:20px; color:var(--cyan);
  text-shadow:0 0 20px rgba(0,240,255,0.3);
}

.result-ai {
  grid-column:1/-1;
  border-color:rgba(124,58,237,0.3); background:rgba(124,58,237,0.04);
}
.result-value-ai { font-size:13px; }
.ai-line {
  padding:6px 0; border-bottom:1px solid rgba(124,58,237,0.1);
  font-size:13px; color:var(--text-secondary);
}
.ai-line:last-child { border-bottom:none }

.result-error {
  padding:16px; border-radius:10px; background:rgba(239,68,68,0.1);
  border:1px solid rgba(239,68,68,0.3); color:var(--red);
  font-size:14px; text-align:center;
}

.result-valid { color:var(--green) !important; }
.result-invalid { color:var(--red) !important; }
.result-sub { font-size:11px; color:var(--text-muted); margin-top:4px }

/* Subnet Table */
.subnet-table-title { font-size:14px; color:var(--text-secondary); margin:20px 0 12px; font-weight:600 }
.subnet-table { overflow-x:auto; border-radius:10px; border:1px solid var(--border-subtle) }
.subnet-table table { width:100%; border-collapse:collapse; font-size:12px; font-family:var(--font-mono) }
.subnet-table th { background:rgba(0,240,255,0.08); color:var(--cyan); padding:10px 12px; text-align:right; white-space:nowrap; font-weight:600 }
.subnet-table td { padding:8px 12px; border-top:1px solid var(--border-subtle); color:var(--text-secondary) }
.subnet-table tr:hover td { background:rgba(0,240,255,0.04) }

/* Result Comparison */
.result-comparison {
  margin-top:20px; padding:16px; border-radius:10px;
  background:rgba(0,240,255,0.04); border:1px solid var(--border-subtle);
}
.comp-title { font-size:13px; color:var(--cyan); font-weight:600; margin-bottom:8px }
.comp-item { font-size:13px; color:var(--text-secondary) }
.comp-item strong { color:var(--cyan) }

/* ===== LINK BUDGET VISUALIZATION ===== */
.link-budget-viz { position:relative }

.lb-chain {
  display:flex; align-items:center; flex-wrap:wrap; gap:8px;
  padding:16px; margin-bottom:12px; border-radius:10px;
  background:rgba(0,0,0,0.2); border:1px solid var(--border-subtle);
}
.lb-node {
  background:rgba(0,240,255,0.06); border:1px solid var(--border-subtle);
  border-radius:8px; padding:10px 16px; text-align:center; flex-shrink:0;
}
.lb-node-label { font-size:10px; color:var(--text-muted); text-transform:uppercase }
.lb-node-val { font-size:14px; font-weight:700; font-family:var(--font-mono); color:var(--cyan) }
.lb-node.lb-eirp { border-color:var(--cyan); background:rgba(0,240,255,0.1) }
.lb-arrow { font-size:16px; font-weight:700; font-family:var(--font-mono) }
.lb-arrow.plus { color:var(--green) }
.lb-arrow.minus { color:var(--red) }

.lb-result-row {
  display:flex; gap:12px; flex-wrap:wrap; margin:16px 0;
}
.lb-final {
  flex:1; min-width:150px; background:rgba(0,0,0,0.3);
  border:2px solid var(--border-subtle); border-radius:10px;
  padding:16px; text-align:center;
}
.lb-final .lb-node-label { font-size:11px; color:var(--text-muted); margin-bottom:4px }
.lb-final .lb-node-val { font-size:18px; font-weight:700; font-family:var(--font-mono) }

.lb-quality-bar { margin-top:12px }
.lb-quality-indicator {
  display:inline-block; padding:8px 24px; border-radius:8px;
  font-size:14px; font-weight:700; text-align:center; width:100%;
}
.quality-excellent { color:var(--green); border-color:var(--green); background:rgba(6,214,160,0.1) }
.quality-good { color:var(--cyan); border-color:var(--cyan); background:var(--cyan-dim) }
.quality-warning { color:var(--yellow); border-color:var(--yellow); background:rgba(251,191,36,0.1) }
.quality-fail { color:var(--red); border-color:var(--red); background:rgba(239,68,68,0.1) }

.result-ai-box {
  margin-top:16px; padding:18px; border-radius:10px;
  background:rgba(124,58,237,0.04); border:1px solid rgba(124,58,237,0.2);
}

/* ===== BITWISE CALCSS ===== */
.bit-row {
  display:flex; gap:10px; align-items:center; padding:3px 0;
  font-family:var(--font-mono); font-size:13px;
}
.bit-op { color:var(--text-muted); font-size:11px }
.bit-result { color:var(--cyan); font-weight:700 }

/* ===== CONTACT ===== */
.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:32px }
.contact-cards { display:flex; flex-direction:column; gap:12px }
.contact-card {
  display:flex; align-items:center; gap:16px; padding:18px;
  background:var(--bg-card); border:1px solid var(--border-subtle);
  border-radius:var(--radius-lg); transition:all var(--transition);
}
.contact-card:hover { border-color:var(--border-light); transform:translateX(-4px) }
.contact-icon { width:44px; height:44px; border-radius:10px; background:var(--cyan-dim); color:var(--cyan); display:flex; align-items:center; justify-content:center; flex-shrink:0 }
.contact-card h3 { font-size:13px; color:var(--text-muted); margin-bottom:2px }
.contact-card a { font-size:14px; color:var(--text-primary); transition:color var(--transition) }
.contact-card a:hover { color:var(--cyan) }

.contact-form-wrap { }
.contact-form { display:flex; flex-direction:column; gap:16px }
.contact-form .btn-submit { width:100%; justify-content:center }

/* ===== FOOTER ===== */
.footer { padding:48px 0 24px; border-top:1px solid var(--border-subtle); position:relative; z-index:1 }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:32px; margin-bottom:32px }
.footer-brand { display:flex; align-items:center; gap:14px }
.footer-text h3 { font-size:15px; margin-bottom:4px }
.footer-text p { font-size:12px; color:var(--text-muted) }
.footer-links h4 { font-size:13px; color:var(--cyan); margin-bottom:12px }
.footer-links a { display:block; font-size:12px; color:var(--text-muted); padding:4px 0; transition:color var(--transition) }
.footer-links a:hover { color:var(--cyan) }

.shamsi-display { display:flex; flex-direction:column; gap:4px }
.shamsi-numeral { font-size:14px; color:var(--text-primary); font-weight:600 }
.shamsi-clock { font-size:20px; color:var(--cyan); font-family:var(--font-mono); font-weight:700; text-align:center }

.footer-bottom {
  display:flex; align-items:center; justify-content:space-between;
  padding-top:20px; border-top:1px solid var(--border-subtle);
  flex-wrap:wrap; gap:12px;
}
.footer-bottom p { font-size:12px; color:var(--text-muted) }
.footer-tech { display:flex; gap:8px }
.tech-badge { padding:3px 10px; border-radius:6px; font-size:10px; background:var(--purple-dim); color:var(--purple); border:1px solid rgba(124,58,237,0.2) }

/* ===== ANIMATIONS ===== */
@keyframes spin { to { transform:rotate(360deg) } }
@keyframes pulseGlow { 0%,100% { opacity:.6; transform:scale(1) } 50% { opacity:1; transform:scale(1.3) } }
@keyframes fadeInUp { from { opacity:0; transform:translateY(30px) } to { opacity:1; transform:translateY(0) } }
@keyframes float { 0%,100% { transform:translateY(0) } 50% { transform:translateY(-10px) } }

.anim-item { opacity:0; transform:translateY(30px); transition:all .6s ease }
.anim-item.visible { opacity:1; transform:translateY(0) }

/* ===== RESPONSIVE ===== */
@media (max-width:1024px) {
  .footer-grid { grid-template-columns:1fr 1fr; }
  .contact-grid { grid-template-columns:1fr; }
}

@media (max-width:768px) {
  .nav-links {
    position:fixed; top:0; right:-300px; width:280px; height:100vh;
    background:rgba(3,8,16,0.98); backdrop-filter:blur(20px);
    flex-direction:column; padding:80px 20px 20px; gap:8px;
    border-left:1px solid var(--border-subtle); transition:all .4s ease;
    z-index:999; overflow-y:auto;
  }
  .nav-links.open { right:0 }
  .nav-links a { font-size:15px; padding:10px 16px }
  .nav-meta { display:none }
  .mobile-toggle { display:flex }

  .hero-stats { gap:20px }
  .stat-number { font-size:24px }
  .hero-shamsi-clock { font-size:11px; bottom:15px }

  .form-row { grid-template-columns:1fr }
  .result-grid { grid-template-columns:1fr }
  .lb-chain { flex-direction:column; align-items:stretch }
  .lb-arrow { text-align:center; font-size:20px }

  .tools-tabs { gap:6px }
  .tool-tab { padding:8px 12px; font-size:12px }
  .tool-tab svg { display:none }

  .footer-grid { grid-template-columns:1fr; }
  .ecosystem-grid { gap:12px }
  .eco-node { width:70px; height:70px; font-size:10px }
}

@media (max-width:480px) {
  .hero-title { font-size:28px }
  .hero-actions { flex-direction:column; align-items:center }
  .btn-primary, .btn-outline { width:100%; justify-content:center }
  .section { padding:60px 0 }
  .exp-grid, .research-grid, .teach-grid, .skills-grid, .about-grid { grid-template-columns:1fr }
  .timeline::before { right:14px }
  .timeline-item { padding-right:40px }
}