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

:root {
  --cyan: #00D4FF;
  --cyan-dark: #00a8cc;
  --cyan-glow: rgba(0, 212, 255, 0.25);
  --blue: #3b82f6;
  --red: #ef4444;
  --orange: #f59e0b;
  --green: #10b981;
  --dark-1: #060a13;
  --dark-2: #0c1221;
  --dark-3: #131c30;
  --dark-4: #1c2a47;
  --dark-5: #253356;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --text-dimmer: #64748b;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
}

/* ── Light Theme ── */
[data-theme="light"] {
  --dark-1: #f0f2f5;
  --dark-2: #ffffff;
  --dark-3: #f8f9fa;
  --dark-4: #e2e8f0;
  --dark-5: #cbd5e1;
  --text: #1e293b;
  --text-dim: #475569;
  --text-dimmer: #64748b;
  --white: #0f172a;
  --cyan: #0891b2;
  --cyan-dark: #0e7490;
  --cyan-glow: rgba(8, 145, 178, 0.2);
}

[data-theme="light"] .navbar {
  background: rgba(255, 255, 255, 0.9);
  border-bottom-color: #e2e8f0;
}
[data-theme="light"] .nav-toggle span { background: #1e293b; }
[data-theme="light"] input,
[data-theme="light"] textarea,
[data-theme="light"] select {
  background: #ffffff;
  border-color: #e2e8f0;
  color: #1e293b;
}
[data-theme="light"] input:focus,
[data-theme="light"] textarea:focus,
[data-theme="light"] select:focus {
  border-color: var(--cyan);
}
[data-theme="light"] .logo-priority { color: #0f172a; }
[data-theme="light"] .logo-cad { color: #64748b; }

/* ── Theme Toggle Button ── */
.theme-toggle {
  background: var(--dark-3);
  border: 1px solid var(--dark-4);
  border-radius: 50px;
  width: 44px; height: 24px;
  cursor: pointer;
  position: relative;
  transition: background 0.3s, border-color 0.3s;
  flex-shrink: 0;
}
.theme-toggle::after {
  content: '';
  position: absolute; top: 3px; left: 3px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--cyan);
  transition: transform 0.3s;
}
[data-theme="light"] .theme-toggle::after {
  transform: translateX(20px);
  background: var(--orange);
}
.theme-toggle-wrap {
  display: flex; align-items: center; gap: 8px;
}
.theme-toggle-label {
  font-size: 0.75rem; color: var(--text-dimmer);
}
.theme-toggle-icon {
  font-size: 0.9rem; line-height: 1;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background: var(--dark-1);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* ── Navbar ── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(6, 10, 19, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.08);
}

.nav-container {
  max-width: 1140px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}

.nav-logo { text-decoration: none; display: flex; align-items: baseline; gap: 4px; }
.logo-priority { color: var(--white); font-weight: 700; font-size: 1.1rem; letter-spacing: 2px; }
.logo-one { color: var(--cyan); font-weight: 700; font-size: 1.1rem; letter-spacing: 2px; }
.logo-cad { color: var(--text-dim); font-weight: 400; font-size: 0.7rem; letter-spacing: 3px; margin-left: 6px; }

.nav-links { display: flex; list-style: none; gap: 24px; align-items: center; }
.nav-links a {
  color: var(--text-dim); text-decoration: none; font-size: 0.88rem; font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-cta {
  background: var(--cyan) !important; color: var(--dark-1) !important;
  padding: 7px 18px !important; border-radius: 8px;
  font-weight: 600 !important; font-size: 0.84rem !important;
}
.nav-cta:hover { background: var(--cyan-dark) !important; }

.nav-user { display: flex; align-items: center; gap: 12px; }
.nav-user span { color: var(--text-dim); font-size: 0.88rem; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); margin: 5px 0; transition: 0.3s; }

/* ── Buttons ── */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px;
  background: var(--cyan); color: var(--dark-1);
  font-weight: 600; font-size: 0.92rem;
  border: none; border-radius: var(--radius-sm); cursor: pointer;
  text-decoration: none; transition: all 0.3s;
}
.btn-primary:hover { background: var(--cyan-dark); transform: translateY(-1px); }

.btn-outline {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px;
  border: 1px solid var(--dark-4); color: var(--text);
  font-weight: 500; font-size: 0.92rem; background: transparent;
  border-radius: var(--radius-sm); text-decoration: none; cursor: pointer;
  transition: all 0.3s;
}
.btn-outline:hover { border-color: var(--cyan); color: var(--cyan); }

.btn-sm {
  padding: 6px 14px; font-size: 0.8rem; border-radius: 6px;
  background: var(--dark-4); color: var(--text-dim); border: none;
  cursor: pointer; transition: all 0.2s;
}
.btn-sm:hover { background: var(--dark-5); color: var(--white); }

.btn-glow { box-shadow: 0 0 20px rgba(0, 212, 255, 0.3); }
.btn-full { width: 100%; justify-content: center; }

/* ── Section badges ── */
.section-badge {
  display: block; text-align: center; font-size: 0.75rem;
  letter-spacing: 3px; color: var(--cyan); font-weight: 600; margin-bottom: 12px;
}

/* ── Forms ── */
.form-group { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.form-group label { font-size: 0.82rem; color: var(--text-dim); font-weight: 500; }
.form-row { display: flex; gap: 16px; }

input, textarea, select {
  background: var(--dark-3); border: 1px solid var(--dark-4);
  border-radius: var(--radius-sm); padding: 12px 14px;
  color: var(--text); font-size: 0.92rem; font-family: inherit;
  transition: border-color 0.2s; width: 100%;
}
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--cyan);
}
textarea { resize: vertical; }
select {
  appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
}
select option { background: var(--dark-3); }

/* ── Footer ── */
.footer {
  padding: 32px 0;
  border-top: 1px solid rgba(0, 212, 255, 0.08);
  text-align: center;
}
.footer p { color: var(--text-dimmer); font-size: 0.82rem; }

/* ── Mobile ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.active {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(6, 10, 19, 0.97); backdrop-filter: blur(20px);
    padding: 12px 0; border-bottom: 1px solid var(--dark-4);
  }
  .nav-links.active a { padding: 14px 24px; display: block; }
  .nav-toggle { display: block; }
  .form-row { flex-direction: column; }
}