/* ============================================================
   NOVITECH DESIGN SYSTEM — Foundations
   Colors, type, spacing, radii, shadows
   Brand seeds: #00B0F0  #FFFFFF  #203864  #000000
   ============================================================ */

/* ---- Webfonts (Google Fonts CDN) ----
   Display:  Sora            — geometric, modern, AI/tech feel
   Body:     IBM Plex Sans   — engineering-grade neutral (+ Thai support)
   Mono:     IBM Plex Mono   — agent output / code
   NOTE: substituted from Google Fonts. The NOVITECH wordmark itself
   ships as a logo image (assets/novitech-lockup.png). Flag to client
   if a licensed brand typeface exists. */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Sans+Thai:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Kanit:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

:root {
  /* ============ BRAND CORE ============ */
  --novitech-sky:   #00B0F0;  /* primary — action, accent, the bright N stroke */
  --novitech-navy:  #203864;  /* secondary — deep, trustworthy, the dark N column */
  --novitech-black: #000000;
  --novitech-white: #FFFFFF;

  /* logo gradient endpoints (the bright diagonal of the N) */
  --logo-blue-1: #3B8DF0;
  --logo-blue-2: #2A6BD6;

  /* ============ SKY SCALE (primary) ============ */
  --sky-50:  #E6F7FE;
  --sky-100: #CCEFFD;
  --sky-200: #99DFFB;
  --sky-300: #66CFF9;
  --sky-400: #33BFF5;
  --sky-500: #00B0F0;   /* brand */
  --sky-600: #008FC6;
  --sky-700: #006C95;
  --sky-800: #004A66;
  --sky-900: #002B3B;

  /* ============ NAVY SCALE (secondary / ink) ============ */
  --navy-50:  #EEF1F7;
  --navy-100: #D4DCEA;
  --navy-200: #A7B7D2;
  --navy-300: #708AB4;
  --navy-400: #41618F;
  --navy-500: #203864;   /* brand */
  --navy-600: #1A2F53;
  --navy-700: #142441;
  --navy-800: #0E1A30;
  --navy-900: #08101F;

  /* ============ NEUTRALS (cool, navy-tinted) ============ */
  --gray-0:   #FFFFFF;
  --gray-50:  #F7F9FC;
  --gray-100: #EEF2F8;
  --gray-200: #E0E7F0;
  --gray-300: #C9D3E1;
  --gray-400: #9AA7BD;
  --gray-500: #6B7891;
  --gray-600: #4B566B;
  --gray-700: #333D4E;
  --gray-800: #1D2531;
  --gray-900: #0D1118;
  --gray-1000:#000000;

  /* ============ SEMANTIC STATUS ============ */
  --success-50:  #E7F6EF;  --success-500: #1F9D6B;  --success-700: #15724D;
  --warning-50:  #FBF1E0;  --warning-500: #E0A33B;  --warning-700: #9A6C1E;
  --danger-50:   #FBE9E6;  --danger-500:  #E0533B;  --danger-700:  #9A3322;
  --info-50:     #E6F7FE;  --info-500:    #00B0F0;  --info-700:    #006C95;

  /* ============ SEMANTIC SURFACES (light theme) ============ */
  --bg:           #FFFFFF;
  --bg-subtle:    var(--gray-50);
  --bg-muted:     var(--gray-100);
  --surface:      #FFFFFF;
  --surface-raised: #FFFFFF;
  --overlay-scrim: rgba(8, 16, 31, 0.55);

  /* foreground / text */
  --fg1: #0E1A30;            /* headings, primary text (deep navy-black) */
  --fg2: var(--gray-600);    /* secondary / supporting copy */
  --fg3: var(--gray-500);    /* tertiary / muted / captions */
  --fg-on-accent: #FFFFFF;
  --fg-on-navy:   #FFFFFF;

  /* borders & lines */
  --border:        var(--gray-200);
  --border-strong: var(--gray-300);
  --border-accent: var(--sky-500);
  --divider:       var(--gray-100);

  /* interactive */
  --accent:        var(--sky-500);
  --accent-hover:  var(--sky-600);
  --accent-active: var(--sky-700);
  --accent-soft:   var(--sky-50);
  --focus-ring:    rgba(0, 176, 240, 0.45);

  /* ============ TYPE FAMILIES ============ */
  --font-display: "Kanit", 'Sora', 'IBM Plex Sans', system-ui, sans-serif;
  --font-sans:    'IBM Plex Sans', 'IBM Plex Sans Thai', system-ui, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, 'SFMono-Regular', monospace;

  /* ============ TYPE SCALE (px @ 16 root) ============ */
  --text-display: 64px;  --lh-display: 1.04;  --ls-display: -0.02em;
  --text-h1: 44px;       --lh-h1: 1.08;       --ls-h1: -0.018em;
  --text-h2: 32px;       --lh-h2: 1.14;       --ls-h2: -0.014em;
  --text-h3: 24px;       --lh-h3: 1.22;       --ls-h3: -0.01em;
  --text-h4: 19px;       --lh-h4: 1.3;        --ls-h4: -0.006em;
  --text-body-lg: 18px;  --lh-body-lg: 1.6;
  --text-body: 16px;     --lh-body: 1.62;
  --text-body-sm: 14px;  --lh-body-sm: 1.55;
  --text-caption: 12.5px;--lh-caption: 1.45;
  --text-overline: 12px; --ls-overline: 0.14em;
  --text-code: 14px;     --lh-code: 1.5;

  /* weights */
  --w-regular: 200;  --w-medium: 300;  --w-semibold: 400;  --w-bold: 500;  --w-extra: 600;

  /* ============ SPACING (4px base) ============ */
  --space-1: 4px;   --space-2: 8px;   --space-3: 12px;  --space-4: 16px;
  --space-5: 20px;  --space-6: 24px;  --space-8: 32px;  --space-10: 40px;
  --space-12: 48px; --space-16: 64px; --space-20: 80px; --space-24: 96px;

  /* ============ RADII ============ */
  --radius-xs: 4px;   --radius-sm: 8px;   --radius-md: 12px;
  --radius-lg: 16px;  --radius-xl: 24px;  --radius-2xl: 32px;
  --radius-pill: 999px;

  /* ============ SHADOWS (cool navy-tinted) ============ */
  --shadow-xs: 0 1px 2px rgba(14, 26, 48, 0.06);
  --shadow-sm: 0 1px 3px rgba(14, 26, 48, 0.08), 0 1px 2px rgba(14, 26, 48, 0.06);
  --shadow-md: 0 4px 12px rgba(14, 26, 48, 0.10), 0 2px 4px rgba(14, 26, 48, 0.06);
  --shadow-lg: 0 12px 28px rgba(14, 26, 48, 0.14), 0 4px 8px rgba(14, 26, 48, 0.06);
  --shadow-xl: 0 24px 56px rgba(14, 26, 48, 0.18);
  --shadow-accent: 0 8px 24px rgba(0, 176, 240, 0.28);

  /* ============ GRADIENTS ============ */
  --grad-brand: linear-gradient(120deg, var(--sky-500) 0%, var(--logo-blue-2) 100%);
  --grad-navy:  linear-gradient(140deg, var(--navy-500) 0%, var(--navy-800) 100%);
  --grad-sky-soft: linear-gradient(160deg, var(--sky-50) 0%, #FFFFFF 70%);

  /* motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 120ms;  --dur: 200ms;  --dur-slow: 360ms;
}

/* ============ DARK SURFACE TOKENS ============
   Apply [data-theme="dark"] on a container (e.g. agent product chrome). */
[data-theme="dark"] {
  --bg:           var(--navy-900);
  --bg-subtle:    var(--navy-800);
  --bg-muted:     var(--navy-700);
  --surface:      #0F1C36;
  --surface-raised: #15243F;
  --fg1: #F4F8FE;
  --fg2: #AEBFD9;
  --fg3: #6F82A3;
  --border:        rgba(167, 183, 210, 0.16);
  --border-strong: rgba(167, 183, 210, 0.28);
  --divider:       rgba(167, 183, 210, 0.10);
  --accent:        var(--sky-400);
  --accent-hover:  var(--sky-300);
  --accent-soft:   rgba(0, 176, 240, 0.14);
}

/* ============================================================
   SEMANTIC TYPOGRAPHY CLASSES
   ============================================================ */
.t-display {
  font-family: var(--font-display); font-weight: var(--w-extra);
  font-size: var(--text-display); line-height: var(--lh-display);
  letter-spacing: var(--ls-display); color: var(--fg1);
}
.t-h1 {
  font-family: var(--font-display); font-weight: var(--w-bold);
  font-size: var(--text-h1); line-height: var(--lh-h1);
  letter-spacing: var(--ls-h1); color: var(--fg1);
}
.t-h2 {
  font-family: var(--font-display); font-weight: var(--w-bold);
  font-size: var(--text-h2); line-height: var(--lh-h2);
  letter-spacing: var(--ls-h2); color: var(--fg1);
}
.t-h3 {
  font-family: var(--font-display); font-weight: var(--w-semibold);
  font-size: var(--text-h3); line-height: var(--lh-h3);
  letter-spacing: var(--ls-h3); color: var(--fg1);
}
.t-h4 {
  font-family: var(--font-display); font-weight: var(--w-semibold);
  font-size: var(--text-h4); line-height: var(--lh-h4);
  letter-spacing: var(--ls-h4); color: var(--fg1);
}
.t-body-lg {
  font-family: var(--font-sans); font-weight: var(--w-regular);
  font-size: var(--text-body-lg); line-height: var(--lh-body-lg); color: var(--fg2);
}
.t-body {
  font-family: var(--font-sans); font-weight: var(--w-regular);
  font-size: var(--text-body); line-height: var(--lh-body); color: var(--fg2);
}
.t-body-sm {
  font-family: var(--font-sans); font-weight: var(--w-regular);
  font-size: var(--text-body-sm); line-height: var(--lh-body-sm); color: var(--fg2);
}
.t-caption {
  font-family: var(--font-sans); font-weight: var(--w-medium);
  font-size: var(--text-caption); line-height: var(--lh-caption); color: var(--fg3);
}
.t-overline {
  font-family: var(--font-sans); font-weight: var(--w-semibold);
  font-size: var(--text-overline); letter-spacing: var(--ls-overline);
  text-transform: uppercase; color: var(--accent);
}
.t-code {
  font-family: var(--font-mono); font-weight: var(--w-regular);
  font-size: var(--text-code); line-height: var(--lh-code); color: var(--fg1);
}