/* ============================================
   Yousef Sherif — Portfolio
   Theme: Dark Tech · Data-centric
   ============================================ */

:root {
  /* Surfaces */
  --bg: #0B0C10;
  --bg-elev: #121419;
  --card: #1F2833;
  --card-2: #161B22;
  --border: rgba(255, 255, 255, 0.06);
  --border-strong: rgba(255, 255, 255, 0.12);

  /* Accent */
  --accent: #06B6D4;
  --accent-2: #10B981;
  --accent-soft: rgba(6, 182, 212, 0.12);
  --accent-glow: rgba(6, 182, 212, 0.35);

  /* Text */
  --text: #F4F6F8;
  --text-muted: #9AA3B2;
  --text-dim: #6B7280;

  /* Effects */
  --shadow-card: 0 1px 0 rgba(255,255,255,0.04) inset, 0 10px 30px -10px rgba(0,0,0,0.5);
  --shadow-cta: 0 10px 30px -10px var(--accent-glow);

  /* Layout */
  --container: 1200px;
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 20px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --t-fast: 160ms;
  --t-med: 320ms;

  /* Type */
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* Subtle grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    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: 64px 64px;
  background-position: center;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 30%, transparent 80%);
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }

/* Focus */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--accent);
  color: #001017;
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 600;
  z-index: 1000;
  transition: top var(--t-fast) var(--ease);
}
.skip-link:focus { top: 16px; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

main { position: relative; z-index: 1; }

/* ============================================
   Header
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background var(--t-med) var(--ease),
              backdrop-filter var(--t-med) var(--ease),
              border-color var(--t-med) var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(11, 12, 16, 0.72);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--text);
}
.logo-text { font-weight: 700; }
.logo-accent { color: var(--accent); }

.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.04); }

.nav-cta {
  background: var(--accent);
  color: #001017;
  margin-left: 8px;
  font-weight: 600;
  box-shadow: 0 4px 14px -4px var(--accent-glow);
}
.nav-cta:hover { background: #22D3EE; color: #001017; }



/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: transform var(--t-fast) var(--ease),
              background var(--t-fast) var(--ease),
              box-shadow var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease);
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--accent);
  color: #001017;
  box-shadow: var(--shadow-cta);
}
.btn-primary:hover { background: #22D3EE; box-shadow: 0 16px 40px -12px var(--accent-glow); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.2); }

.btn-full { width: 100%; }

.btn[disabled] { opacity: 0.6; cursor: not-allowed; transform: none !important; }

.btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  display: none;
  animation: spin 0.7s linear infinite;
}
.btn.loading .btn-spinner { display: inline-block; }
.btn.loading .btn-icon { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  padding: 140px 0 100px;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: rgba(255,255,255,0.02);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 24px;
  font-family: var(--font-mono);
}
.status-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-2);
  border-radius: 50%;
  box-shadow: 0 0 0 0 var(--accent-2);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6); }
  70%  { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.75rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, #06B6D4 0%, #10B981 60%, #06B6D4 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: shimmer 6s linear infinite;
}
@keyframes shimmer {
  0%   { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

.hero-sub {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: 32px;
  line-height: 1.55;
}

.typewriter {
  color: var(--text);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.95em;
  border-bottom: 1px dashed var(--accent);
  padding-bottom: 2px;
}
.typewriter-caret {
  display: inline-block;
  color: var(--accent);
  font-weight: 300;
  margin-left: 2px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.88rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}
.hero-meta li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-meta svg { color: var(--accent-2); }

/* Hero visual / chart card */
.hero-visual {
  position: relative;
  height: 100%;
  min-height: 380px;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.6;
  pointer-events: none;
}
.orb-1 {
  width: 280px;
  height: 280px;
  background: var(--accent);
  top: -20px;
  right: -40px;
  opacity: 0.35;
}
.orb-2 {
  width: 220px;
  height: 220px;
  background: var(--accent-2);
  bottom: -20px;
  left: -20px;
  opacity: 0.25;
}

.hero-card {
  position: relative;
  background: linear-gradient(180deg, var(--card) 0%, var(--card-2) 100%);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-card), 0 30px 80px -30px rgba(6, 182, 212, 0.3);
  z-index: 1;
}

.hero-card-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #EF4444; }
.dot-y { background: #F59E0B; }
.dot-g { background: var(--accent-2); }
.hero-card-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.kpi {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
  font-family: var(--font-mono);
}
.kpi:last-of-type { border-bottom: none; }
.kpi-label { font-size: 0.78rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.08em; }
.kpi-value { font-size: 1.05rem; font-weight: 600; }
.kpi-value.up { color: var(--accent-2); }
.kpi-value.down { color: var(--accent); }

.chart {
  width: 100%;
  height: 120px;
  margin-top: 10px;
}

/* ============================================
   Section base
   ============================================ */
.section {
  padding: 100px 0;
  position: relative;
}

.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 4px 12px;
  border: 1px solid var(--accent-soft);
  border-radius: 999px;
  background: var(--accent-soft);
  margin-bottom: 18px;
}

.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.section-sub {
  font-size: 1.02rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   Services / Platforms grid
   ============================================ */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: linear-gradient(180deg, var(--card) 0%, var(--card-2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-card);
  transition: transform var(--t-med) var(--ease),
              border-color var(--t-med) var(--ease),
              box-shadow var(--t-med) var(--ease);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--t-med) var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: 0 1px 0 rgba(255,255,255,0.04) inset, 0 20px 50px -20px rgba(0,0,0,0.6);
}
.card:hover::before { opacity: 1; }

.platform-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.platform-head h3 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.platform-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.platform-icon-meta { background: linear-gradient(135deg, #1877F2 0%, #0E5FCB 100%); color: #fff; }
.platform-icon-google { background: linear-gradient(135deg, #EA4335 0%, #FBBC05 50%, #34A853 100%); color: #fff; }
.platform-icon-tiktok { background: linear-gradient(135deg, #25F4EE 0%, #FE2C55 100%); color: #000; }

.platform-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.feature-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 14px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

/* ============================================
   Framework / Process
   ============================================ */
.framework { background: linear-gradient(180deg, transparent 0%, rgba(6, 182, 212, 0.03) 50%, transparent 100%); }

.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
  position: relative;
}
.process::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong) 20%, var(--border-strong) 80%, transparent);
  z-index: 0;
}

.process-step {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 8px;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 20px;
  position: relative;
  transition: background var(--t-med) var(--ease), border-color var(--t-med) var(--ease);
}
.process-step:hover .step-num {
  background: var(--accent);
  color: #001017;
  border-color: var(--accent);
  box-shadow: 0 12px 30px -10px var(--accent-glow);
}

.step-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.step-body p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ============================================
   About
   ============================================ */
.about-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-content .section-tag { margin-bottom: 18px; }
.about-content .section-title { text-align: left; margin-bottom: 20px; }
.about-content p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 1rem;
  line-height: 1.7;
}
.about-content p strong {
  color: var(--text);
  font-weight: 600;
}

.metrics {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.metric {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 22px;
  background: linear-gradient(180deg, var(--card) 0%, var(--card-2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.metric:hover { transform: translateX(4px); border-color: var(--border-strong); }

.metric-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.metric h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.metric p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ============================================
   Ethical Marketing Standards
   ============================================ */
.principles {
  background: linear-gradient(180deg, transparent 0%, rgba(16, 185, 129, 0.02) 50%, transparent 100%);
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.principle-card {
  display: flex;
  flex-direction: column;
}

.principle-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.principle-icon svg {
  width: 22px;
  height: 22px;
}

.principle-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.principle-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.principle-points {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.principle-points li {
  position: relative;
  padding-left: 20px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.principle-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 2px;
  background: var(--accent-2);
  border-radius: 2px;
}

/* Featured Exclusions Card spanning 2 columns */
.principle-card.highlights-exclusions {
  grid-column: span 2;
}

.principle-card.highlights-exclusions .principle-icon.icon-alert {
  background: rgba(239, 68, 68, 0.08);
  color: #EF4444;
}

.exclusions-content {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.exclusions-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #EF4444;
  margin-bottom: 12px;
}

.exclusion-list li::before {
  background: #EF4444;
}

/* Bottom Highlight Section */
.principles-footer {
  position: relative;
  background: linear-gradient(180deg, var(--card) 0%, var(--card-2) 100%);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-card), 0 20px 50px -20px rgba(6, 182, 212, 0.15);
}

.principles-footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);
}

.principles-footer-content {
  max-width: 800px;
  margin: 0 auto;
}

.principles-footer-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 16px;
}

.principles-footer h3 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.principles-footer p {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
  font-style: italic;
}

/* Responsive adjustments */
@media (max-width: 960px) {
  .principles-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .principle-card.highlights-exclusions {
    grid-column: span 1;
  }
  .principles-footer {
    padding: 32px 24px;
  }
  .principles-footer p {
    font-size: 1rem;
  }
}

/* ============================================
   Contact
   ============================================ */
.contact { padding-bottom: 120px; }

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.contact-head { position: sticky; top: 100px; }
.contact-head .section-tag { margin-bottom: 18px; }
.contact-head .section-title { text-align: left; }
.contact-head .section-sub { margin: 0 0 28px; text-align: left; }

.contact-mail {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent);
  padding: 12px 18px;
  border: 1px solid var(--accent-soft);
  border-radius: 10px;
  background: var(--accent-soft);
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.contact-mail:hover {
  background: rgba(6, 182, 212, 0.2);
  border-color: var(--accent);
}

.form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  padding: 32px;
  background: linear-gradient(180deg, var(--card) 0%, var(--card-2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field-full { grid-column: 1 / -1; }

.field label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: var(--bg-elev);
  color: var(--text);
  font-size: 0.95rem;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
  font-family: inherit;
}
.field textarea { resize: vertical; min-height: 120px; }
.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239AA3B2' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}
.field select option {
  background-color: var(--card);
  color: var(--text);
  font-family: inherit;
  padding: 8px;
}
.field select option:checked {
  background-color: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}
.field input::placeholder,
.field textarea::placeholder { color: var(--text-dim); }

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(6, 182, 212, 0.05);
}

.field input.invalid,
.field select.invalid,
.field textarea.invalid {
  border-color: #F87171;
  background: rgba(248, 113, 113, 0.05);
}

.field-error {
  font-size: 0.8rem;
  color: #F87171;
  min-height: 18px;
  font-family: var(--font-mono);
}

.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

.form-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
}

.form-status {
  font-size: 0.88rem;
  text-align: center;
  min-height: 20px;
  font-family: var(--font-mono);
}
.form-status.success { color: var(--accent-2); }
.form-status.error   { color: #F87171; }

/* ============================================
   Footer
   ============================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0 32px;
  background: rgba(0, 0, 0, 0.3);
  position: relative;
  z-index: 1;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-tag { font-size: 0.78rem; color: var(--text-dim); font-family: var(--font-mono); }
.footer-link {
  font-size: 0.85rem;
  color: var(--text);
  font-family: var(--font-mono);
  transition: color var(--t-fast) var(--ease);
}
.footer-link:hover { color: var(--accent); }
.footer-legal { display: flex; gap: 8px; align-items: center; }
.footer-sep { color: var(--text-dim); font-size: 0.75rem; }
.footer-legal-link {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  transition: color var(--t-fast) var(--ease);
}
.footer-legal-link:hover { color: var(--accent); }
.footer-copy { font-size: 0.78rem; color: var(--text-dim); }

/* ============================================
   Reveal Animations
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
  will-change: opacity, transform;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .typewriter-caret { animation: none; }
  .gradient-text { animation: none; }
  .status-dot { animation: none; }
  html { scroll-behavior: auto; }
}

/* ============================================
   Language Switcher
   ============================================ */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  background: rgba(255,255,255,0.02);
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.lang-toggle:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.lang-option {
  color: var(--text-dim);
  cursor: pointer;
  transition: color var(--t-fast) var(--ease);
  user-select: none;
}
.lang-option.active {
  color: var(--accent);
}
.lang-sep {
  color: var(--text-dim);
  opacity: 0.4;
}

/* ============================================
   RTL Support
   ============================================ */
html[dir="rtl"] {
  font-family: 'Noto Sans Arabic', 'Inter', system-ui, -apple-system, sans-serif;
}
html[dir="rtl"] body {
  font-family: 'Noto Sans Arabic', 'Inter', system-ui, -apple-system, sans-serif;
}

.rtl .nav-cta {
  margin-left: 0;
  margin-right: 8px;
}
.rtl .feature-list li {
  padding-left: 0;
  padding-right: 24px;
}
.rtl .feature-list li::before {
  left: auto;
  right: 0;
}
.rtl .principle-points li {
  padding-left: 0;
  padding-right: 20px;
}
.rtl .principle-points li::before {
  left: auto;
  right: 0;
}
.rtl .metric {
  flex-direction: row-reverse;
}
.rtl .hero-title {
  text-align: right;
}
.rtl .hero-sub {
  text-align: right;
}
.rtl .hero-cta {
  justify-content: flex-start;
}
.rtl .hero-meta {
  justify-content: flex-start;
}
.rtl .section-title {
  text-align: right;
}
.rtl .section-sub {
  text-align: right;
}
.rtl .about-content .section-title {
  text-align: right;
}
.rtl .contact-head .section-title {
  text-align: right;
}
.rtl .contact-head .section-sub {
  text-align: right;
}
.rtl .contact-mail {
  direction: ltr;
}
.rtl .form {
  direction: rtl;
}
.rtl .field select {
  background-position: left 14px center;
  padding-right: 14px;
  padding-left: 40px;
}
.rtl .footer-legal {
  justify-content: flex-start;
}
.rtl .hero-card {
  direction: ltr;
}
.rtl .process {
  direction: rtl;
}
.rtl .field-error {
  text-align: right;
}
.rtl .footer-top {
  flex-direction: row-reverse;
}
.rtl .footer-bottom {
  flex-direction: row-reverse;
}
.rtl .footer-legal {
  justify-content: flex-start;
}
.rtl .footer-copy {
  text-align: right;
}
.rtl .principles-footer p {
  text-align: right;
}
.rtl .exclusions-content {
  direction: rtl;
}
.rtl .hero-visual {
  direction: ltr;
}

@media (max-width: 720px) {
  .rtl .nav-cta {
    margin-left: 0;
    margin-right: 4px;
  }
  .rtl .footer-top,
  .rtl .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .rtl .footer-legal {
    justify-content: center;
  }
  .rtl .process-step {
    flex-direction: row-reverse;
  }
  .rtl .step-body {
    text-align: right;
  }
  .rtl .contact-mail {
    direction: ltr;
  }
}

/* ============================================
   Responsive
   ============================================ */

/* Tablet */
@media (max-width: 960px) {
  .hero { padding: 120px 0 60px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { min-height: 300px; }
  .grid-3 { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .process { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .process::before { display: none; }
  .about-inner { grid-template-columns: 1fr; gap: 40px; }
  .contact-inner { grid-template-columns: 1fr; gap: 40px; }
  .contact-head { position: static; }
  .section { padding: 70px 0; }
  .principles-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto 64px; }
  .principle-card.highlights-exclusions { grid-column: span 1; }
}

/* Mobile */
@media (max-width: 720px) {
  .container { padding: 0 18px; }
  .header-inner { height: 64px; }

  .nav { display: none; }
  .nav-list { gap: 2px; }
  .nav-link { padding: 6px 10px; font-size: 0.85rem; }

  .lang-toggle { padding: 5px 10px; font-size: 0.78rem; }

  .hero { padding: 100px 0 50px; }
  .hero-title { font-size: clamp(1.75rem, 7vw, 2.2rem); }
  .hero-sub { font-size: 1rem; margin-bottom: 24px; }
  .hero-visual { min-height: 240px; }
  .hero-card { padding: 16px; }
  .hero-card-head { padding-bottom: 12px; margin-bottom: 12px; }
  .kpi { padding: 6px 0; }
  .chart { height: 90px; }
  .orb-1 { width: 180px; height: 180px; }
  .orb-2 { width: 140px; height: 140px; }

  .section { padding: 56px 0; }
  .section-head { margin-bottom: 40px; }
  .section-tag { font-size: 0.7rem; padding: 4px 10px; }
  .section-title { font-size: clamp(1.4rem, 5vw, 1.8rem); }
  .section-sub { font-size: 0.95rem; }

  .form { grid-template-columns: 1fr; padding: 22px; gap: 16px; }
  .field input, .field select, .field textarea { padding: 14px; font-size: 1rem; min-height: 48px; }
  .btn { padding: 16px 20px; min-height: 52px; font-size: 1rem; }

  .process { grid-template-columns: 1fr; gap: 24px; }
  .process-step { text-align: left; display: flex; gap: 16px; align-items: flex-start; }
  .step-num { width: 48px; height: 48px; font-size: 0.9rem; margin-bottom: 0; flex-shrink: 0; }
  .step-body { text-align: left; }

  .about-content .section-title { font-size: clamp(1.3rem, 4.5vw, 1.6rem); }
  .metric { padding: 18px; gap: 14px; }
  .metric-icon { width: 40px; height: 40px; }

  .principles-footer { padding: 32px 20px; }
  .principles-footer-tag { font-size: 0.7rem; }
  .principles-footer h3 { font-size: 1.35rem; }
  .principles-footer p { font-size: 0.95rem; }

  .contact-mail { font-size: 0.85rem; padding: 10px 14px; width: 100%; justify-content: center; }

  .footer-top,
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .footer-legal { justify-content: center; }
  .footer-tag { font-size: 0.78rem; }

  .eyebrow { font-size: 0.75rem; padding: 5px 12px; }
  .hero-meta { gap: 12px; font-size: 0.8rem; }
}

/* Small phones */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .header-inner { height: 60px; }

  .logo-text { font-size: 0.95rem; }

  .nav-link:not(.nav-cta) { display: none; }
  .nav-cta { padding: 8px 14px; margin-left: 0; font-size: 0.85rem; min-height: 40px; }

  .hero { padding: 88px 0 40px; }
  .hero-title { font-size: 1.6rem; line-height: 1.12; }
  .hero-sub { font-size: 0.92rem; }
  .hero-cta { flex-direction: column; gap: 10px; }
  .btn { width: 100%; min-height: 50px; }
  .hero-meta { flex-direction: column; gap: 8px; }
  .hero-visual { min-height: 200px; }
  .orb-1 { width: 140px; height: 140px; top: -30px; right: -40px; }
  .orb-2 { width: 100px; height: 100px; bottom: -20px; left: -30px; }
  .hero-card { border-radius: 14px; padding: 14px; }
  .kpi-label { font-size: 0.7rem; }
  .kpi-value { font-size: 0.9rem; }
  .chart { height: 70px; }

  .section { padding: 48px 0; }
  .section-head { margin-bottom: 32px; }
  .section-title { font-size: 1.35rem; }
  .section-sub { font-size: 0.9rem; }

  .card { padding: 22px; }
  .platform-head h3 { font-size: 1.15rem; }
  .feature-list li { font-size: 0.88rem; }

  .step-num { width: 42px; height: 42px; font-size: 0.82rem; }
  .step-body h3 { font-size: 1rem; }
  .step-body p { font-size: 0.88rem; }

  .principle-card h3 { font-size: 1.1rem; }
  .principle-desc { font-size: 0.9rem; }
  .principle-points li { font-size: 0.85rem; }

  .form { padding: 18px; gap: 14px; }
  .field label { font-size: 0.82rem; }
  .field input, .field select, .field textarea { padding: 12px; font-size: 0.95rem; }
  .btn { padding: 14px 18px; font-size: 0.95rem; }

  .site-footer { padding: 24px 0; }
  .footer-top { padding-bottom: 16px; }
  .footer-tag { font-size: 0.72rem; }
  .footer-link { font-size: 0.82rem; }
  .footer-legal { flex-wrap: wrap; justify-content: center; gap: 6px 12px; }
  .footer-sep { display: none; }
  .footer-legal-link { font-size: 0.75rem; padding: 4px 0; }
  .footer-copy { font-size: 0.72rem; }

  .principles-footer { padding: 24px 16px; }
  .principles-footer h3 { font-size: 1.2rem; }
  .principles-footer p { font-size: 0.88rem; line-height: 1.6; }
}