/* Global Design System */

:root {
  /* Color Palette */
  --brand-accent: #0096D7;
  --brand-accent-600: #007FB7;
  --brand-accent-700: #0071A1;

  --bg-elev-0: #f7f9fb;
  --bg-elev-1: #ffffff;
  --bg-tint: rgba(0, 150, 215, 0.06);

  --text-900: #0f232b;
  --text-800: #18262f;
  --text-700: rgba(24,38,47,0.92);
  --text-600: #55616a;

  /* Shadows */
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.10);
  --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.18);
  --shadow-lg: 0 18px 48px rgba(2,20,27,0.30);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 999px;

  /* Spacing Scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;
  --space-8: 32px;
  --space-9: 36px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Layout */
  --container-max-width: 1200px;
  --section-padding-x: 20px;
  --section-padding-y: 64px;
  --text-max-width: 640px;

  /* Glass */
  --glass-bg: rgba(255, 255, 255, 0.84);
  --glass-border: rgba(255, 255, 255, 0.78);
  --glass-blur: 18px;
}

/* Base */
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text-800);
  background: transparent;
  line-height: 1.65;
}
img { max-width: 100%; height: auto; display: block; }

.material-symbols-outlined {
  color: var(--brand-accent);
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 32;
}

/* Utilities */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  padding-left: var(--section-padding-x);
  padding-right: var(--section-padding-x);
  margin: 0 auto;
  box-sizing: border-box;
}
.section { padding: var(--section-padding-y) 0; }
.section-intro { font-size: clamp(1rem, 1.1vw, 1.12rem); color: var(--text-700); }

.glass_panel {
  background: linear-gradient(180deg, var(--glass-bg), rgba(250,250,250,0.78));
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.card {
  background: var(--bg-elev-1);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(0,150,215,0.35); }

.btn_primary {
  background: var(--brand-accent);
  color: #fff;
  padding: 14px 28px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  box-shadow: 0 12px 30px rgba(0,150,215,0.42);
}
.btn_primary:hover { background: var(--brand-accent-600); transform: translateY(-4px); box-shadow: 0 18px 42px rgba(0,150,215,0.50); }

/* Headings */
h1 { color: var(--text-900); letter-spacing: 0.2px; }
h2 { font-size: clamp(1.8rem, 2.2vw, 2.4rem); color: #fff; letter-spacing: 0.2px; }

/* Consistent Section Wrapper Variants */
.section--tint { background: var(--bg-tint); }
.section--dark { background: #18262f; color: #fff; }