/* =========================================================================
   Kai Roß Bausachverständigenbüro — Design Tokens
   v1.0 — May 2026
   ========================================================================= */

/* ---------- Fonts -------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* ---- Brand colors --------------------------------------------------- */
  --kr-orange:           #F88828;   /* primary brand color (logo, CTAs) */
  --kr-orange-600:       #E67617;   /* hover / pressed */
  --kr-orange-700:       #C45F0E;   /* active / link visited */
  --kr-orange-100:       #FEEBD6;   /* tinted bg (light theme) */
  --kr-orange-50:        #FFF6EC;   /* very subtle wash */

  --kr-ink:              #1B1B1B;   /* darkest neutral, body text on light */
  --kr-graphite:         #3A3A3A;   /* logo's secondary block */

  /* ---- Neutrals ------------------------------------------------------- */
  --kr-neutral-0:        #FFFFFF;
  --kr-neutral-50:       #F7F7F6;
  --kr-neutral-100:      #EFEFED;
  --kr-neutral-200:      #E2E2DF;
  --kr-neutral-300:      #C9C9C5;
  --kr-neutral-400:      #9C9C97;
  --kr-neutral-500:      #6E6E69;
  --kr-neutral-600:      #4A4A46;
  --kr-neutral-700:      #2E2E2C;
  --kr-neutral-800:      #1F1F1D;
  --kr-neutral-900:      #141413;

  /* ---- Status / feedback --------------------------------------------- */
  --kr-success:          #2D8E47;
  --kr-warning:          #E0A82E;
  --kr-danger:           #C8372D;
  --kr-info:             #2F6FB8;

  /* ---- Type ----------------------------------------------------------- */
  --kr-font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --kr-font-mono: "JetBrains Mono", "SF Mono", Monaco, Consolas, "Cascadia Code", ui-monospace, monospace;
  --kr-font-display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --kr-fs-xs:   12px;
  --kr-fs-sm:   13px;
  --kr-fs-base: 15px;
  --kr-fs-md:   17px;
  --kr-fs-lg:   20px;
  --kr-fs-xl:   24px;
  --kr-fs-2xl:  30px;
  --kr-fs-3xl:  38px;
  --kr-fs-4xl:  48px;
  --kr-fs-5xl:  64px;

  --kr-fw-regular:  400;
  --kr-fw-medium:   500;
  --kr-fw-semibold: 600;
  --kr-fw-bold:     700;
  --kr-fw-black:    800;

  --kr-lh-tight:   1.15;
  --kr-lh-snug:    1.3;
  --kr-lh-normal:  1.5;
  --kr-lh-relaxed: 1.7;

  --kr-tracking-tight:  -0.02em;
  --kr-tracking-normal:  0;
  --kr-tracking-wide:    0.04em;
  --kr-tracking-eyebrow: 0.12em;

  /* ---- Spacing (4-step) ---------------------------------------------- */
  --kr-space-1:   4px;
  --kr-space-2:   8px;
  --kr-space-3:  12px;
  --kr-space-4:  16px;
  --kr-space-5:  20px;
  --kr-space-6:  24px;
  --kr-space-8:  32px;
  --kr-space-10: 40px;
  --kr-space-12: 48px;
  --kr-space-16: 64px;
  --kr-space-20: 80px;

  /* ---- Radius -------------------------------------------------------- */
  --kr-radius-xs:  4px;
  --kr-radius-sm:  6px;   /* inputs, tags, small buttons */
  --kr-radius-md:  8px;   /* default button */
  --kr-radius-lg: 12px;   /* cards, toasts */
  --kr-radius-xl: 16px;   /* modals, large surfaces */
  --kr-radius-pill: 9999px;

  /* ---- Shadows (light surface) -------------------------------------- */
  --kr-shadow-sm:  0 1px 2px rgba(0,0,0,.05);
  --kr-shadow-md:  0 4px 8px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --kr-shadow-lg:  0 12px 24px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.05);
  --kr-shadow-xl:  0 24px 48px rgba(0,0,0,.14);

  /* ---- Motion -------------------------------------------------------- */
  --kr-ease:        cubic-bezier(.2,.8,.2,1);
  --kr-dur-fast:    120ms;
  --kr-dur-base:    220ms;
  --kr-dur-slow:    400ms;

  /* ---- Layout -------------------------------------------------------- */
  --kr-content-max: 1200px;
  --kr-content-narrow: 720px;
  --kr-border-width: 1px;
}

/* =========================================================================
   THEME — APP (DARK)
   Mirrors the website screenshot: near-black surfaces, orange accent.
   Apply by default, or scope under  [data-theme="dark"]
   ========================================================================= */
:root,
[data-theme="dark"] {
  --bg-canvas:      #141413;       /* page bg */
  --bg-surface:     #1F1F1D;       /* cards, panels */
  --bg-surface-2:   #2A2A28;       /* nested surfaces, hovered rows */
  --bg-elevated:    #34342F;       /* popovers, dropdowns */
  --bg-input:       #1A1A19;
  --bg-hover:       rgba(255,255,255,.04);
  --bg-active:      rgba(255,255,255,.08);
  --bg-scrim:       rgba(0,0,0,.55);

  --border:         #34342F;
  --border-strong:  #4A4A46;
  --border-subtle:  #2A2A28;

  --text-primary:   #F4F4F2;
  --text-secondary: #B5B5AF;
  --text-tertiary:  #7C7C77;
  --text-disabled:  #555551;
  --text-inverse:   #1B1B1B;

  --accent:         var(--kr-orange);
  --accent-hover:   #FF9943;
  --accent-active:  var(--kr-orange-600);
  --accent-on:      #1B1B1B;       /* text on orange surfaces */
  --accent-soft:    rgba(248,136,40,.14);
  --accent-ring:    rgba(248,136,40,.45);

  --link:           #FFA85C;
  --link-hover:     #FFC089;

  /* Status (dark adjusted) */
  --status-success: #4FC26D;
  --status-warning: #F4C04E;
  --status-danger:  #E55A50;
  --status-info:    #5B9CE0;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 4px 8px rgba(0,0,0,.45), 0 1px 2px rgba(0,0,0,.3);
  --shadow-lg: 0 12px 24px rgba(0,0,0,.5);
  --shadow-xl: 0 24px 48px rgba(0,0,0,.6);
}

/* =========================================================================
   THEME — PDF / DOCUMENT (LIGHT)
   Print-safe: pure white canvas, ink text, restrained accent.
   Apply by [data-theme="light"] OR @media print.
   ========================================================================= */
[data-theme="light"] {
  --bg-canvas:      #FFFFFF;
  --bg-surface:     #FFFFFF;
  --bg-surface-2:   var(--kr-neutral-50);
  --bg-elevated:    #FFFFFF;
  --bg-input:       #FFFFFF;
  --bg-hover:       rgba(27,27,27,.04);
  --bg-active:      rgba(27,27,27,.08);
  --bg-scrim:       rgba(27,27,27,.4);

  --border:         var(--kr-neutral-200);
  --border-strong:  var(--kr-neutral-400);
  --border-subtle:  var(--kr-neutral-100);

  --text-primary:   var(--kr-ink);
  --text-secondary: var(--kr-neutral-600);
  --text-tertiary:  var(--kr-neutral-500);
  --text-disabled:  var(--kr-neutral-400);
  --text-inverse:   #FFFFFF;

  --accent:         var(--kr-orange);
  --accent-hover:   var(--kr-orange-600);
  --accent-active:  var(--kr-orange-700);
  --accent-on:      #FFFFFF;
  --accent-soft:    var(--kr-orange-100);
  --accent-ring:    rgba(248,136,40,.35);

  --link:           var(--kr-orange-700);
  --link-hover:     var(--kr-orange-600);

  --status-success: var(--kr-success);
  --status-warning: var(--kr-warning);
  --status-danger:  var(--kr-danger);
  --status-info:    var(--kr-info);

  --shadow-sm: var(--kr-shadow-sm);
  --shadow-md: var(--kr-shadow-md);
  --shadow-lg: var(--kr-shadow-lg);
  --shadow-xl: var(--kr-shadow-xl);
}

/* Print always uses light theme */
@media print {
  :root {
    --bg-canvas:      #FFFFFF;
    --bg-surface:     #FFFFFF;
    --text-primary:   #1B1B1B;
    --text-secondary: #4A4A46;
    --border:         #C9C9C5;
    --accent:         #F88828;
    --accent-on:      #FFFFFF;
  }
}

/* =========================================================================
   ELEMENT BASELINE
   ========================================================================= */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--kr-font-sans);
  font-size: var(--kr-fs-base);
  line-height: var(--kr-lh-normal);
  color: var(--text-primary);
  background: var(--bg-canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--kr-space-3);
  font-weight: var(--kr-fw-bold);
  line-height: var(--kr-lh-tight);
  letter-spacing: var(--kr-tracking-tight);
  color: var(--text-primary);
}
h1 { font-size: var(--kr-fs-4xl); font-weight: var(--kr-fw-black); }
h2 { font-size: var(--kr-fs-3xl); }
h3 { font-size: var(--kr-fs-2xl); }
h4 { font-size: var(--kr-fs-xl); }
h5 { font-size: var(--kr-fs-lg); }
h6 { font-size: var(--kr-fs-md); text-transform: uppercase; letter-spacing: var(--kr-tracking-eyebrow); }

p { margin: 0 0 var(--kr-space-4); }

a {
  color: var(--link);
  text-decoration: none;
  transition: color var(--kr-dur-fast) var(--kr-ease);
}
a:hover { color: var(--link-hover); text-decoration: underline; text-underline-offset: 2px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }

code, kbd, pre, samp {
  font-family: var(--kr-font-mono);
  font-size: 0.92em;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: var(--kr-space-6) 0;
}

::selection { background: var(--accent-soft); color: var(--text-primary); }

/* =========================================================================
   PRIMITIVES
   Useful classes you can drop into any HTML.
   ========================================================================= */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--kr-space-2);
  padding: 10px 18px;
  font: inherit;
  font-weight: var(--kr-fw-semibold);
  font-size: var(--kr-fs-sm);
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--kr-radius-md);
  cursor: pointer;
  transition: background var(--kr-dur-fast) var(--kr-ease),
              color var(--kr-dur-fast) var(--kr-ease),
              border-color var(--kr-dur-fast) var(--kr-ease),
              transform var(--kr-dur-fast) var(--kr-ease);
  user-select: none;
}
.btn:focus-visible { outline: 2px solid var(--accent-ring); outline-offset: 2px; }
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--accent);
  color: var(--accent-on);
}
.btn--primary:hover { background: var(--accent-hover); }
.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.btn--secondary:hover { background: var(--bg-hover); }
.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn--ghost:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn--danger {
  background: var(--status-danger);
  color: #fff;
}
.btn--lg { padding: 14px 24px; font-size: var(--kr-fs-base); border-radius: var(--kr-radius-md); }
.btn--sm { padding: 6px 12px; font-size: var(--kr-fs-xs); border-radius: var(--kr-radius-sm); }

/* Inputs */
.input, .textarea, .select {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  font-size: var(--kr-fs-sm);
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--kr-radius-sm);
  transition: border-color var(--kr-dur-fast) var(--kr-ease),
              box-shadow var(--kr-dur-fast) var(--kr-ease);
}
.input:focus, .textarea:focus, .select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring);
}
.input::placeholder, .textarea::placeholder { color: var(--text-tertiary); }

/* Cards */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--kr-radius-lg);
  padding: var(--kr-space-6);
}
.card--flat { border: 1px solid var(--border-subtle); }
.card--elevated { box-shadow: var(--shadow-md); }

/* Badges / status pills */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  font-size: var(--kr-fs-xs);
  font-weight: var(--kr-fw-semibold);
  border-radius: var(--kr-radius-pill);
  background: var(--bg-surface-2);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.badge--accent { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.badge--success { background: color-mix(in srgb, var(--status-success) 15%, transparent); color: var(--status-success); border-color: transparent; }
.badge--warning { background: color-mix(in srgb, var(--status-warning) 18%, transparent); color: var(--status-warning); border-color: transparent; }
.badge--danger  { background: color-mix(in srgb, var(--status-danger) 18%, transparent);  color: var(--status-danger);  border-color: transparent; }

/* Eyebrow / overline label */
.eyebrow {
  font-size: var(--kr-fs-xs);
  font-weight: var(--kr-fw-bold);
  letter-spacing: var(--kr-tracking-eyebrow);
  text-transform: uppercase;
  color: var(--text-tertiary);
}

/* Utility — focus ring */
.focus-ring:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--kr-radius-sm);
}