/* ============================================================
   base.css — Vogel Group Design Tokens & Reset
   ============================================================ */

/* --- Type Scale (fluid) --- */
:root {
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* --- 4px Spacing System --- */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* --- Radius --- */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* --- Transitions --- */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:     cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  /* --- Content Widths --- */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* --- Font Families --- */
  --font-display: 'Cabinet Grotesk', 'General Sans', 'Helvetica Neue', sans-serif;
  --font-body: 'General Sans', 'Helvetica Neue', sans-serif;
}

/* ============================================================
   LIGHT MODE (default)
   ============================================================ */
:root, [data-theme="light"] {
  /* Surfaces — warm off-white */
  --color-bg:              #F8F7F4;
  --color-surface:         #FFFFFF;
  --color-surface-2:       #F2F1EE;
  --color-surface-offset:  #EDECEA;
  --color-surface-dynamic: #E6E4DF;
  --color-divider:         #DDD9D5;
  --color-border:          #D0CCC6;

  /* Text */
  --color-text:          #2D2D2D;
  --color-text-muted:    #6B6B6B;
  --color-text-faint:    #A0A0A0;
  --color-text-inverse:  #F8F7F4;

  /* Primary — Soft Teal */
  --color-primary:        #5BBFB5;
  --color-primary-hover:  #49A89F;
  --color-primary-active: #3A9189;
  --color-primary-muted:  rgba(91, 191, 181, 0.12);
  --color-primary-glow:   rgba(91, 191, 181, 0.35);

  /* Accent — Lavender */
  --color-accent:        #A8A4D7;
  --color-accent-hover:  #9591C8;
  --color-accent-muted:  rgba(168, 164, 215, 0.12);
  --color-accent-glow:   rgba(168, 164, 215, 0.35);

  /* Coral accent */
  --color-coral:         #E8826F;
  --color-coral-hover:   #D6715E;
  --color-coral-muted:   rgba(232, 130, 111, 0.12);

  /* Status */
  --color-success: #5BAF6F;
  --color-warning: #D4994A;
  --color-error:   #D05858;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(45, 45, 45, 0.06);
  --shadow-md: 0 4px 16px rgba(45, 45, 45, 0.08);
  --shadow-lg: 0 12px 40px rgba(45, 45, 45, 0.12);
  --shadow-glow-teal: 0 0 20px rgba(91, 191, 181, 0.25);
  --shadow-glow-lavender: 0 0 20px rgba(168, 164, 215, 0.25);

  /* Hero hex grid */
  --hex-stroke: rgba(91, 191, 181, 0.12);
  --hex-fill:   rgba(91, 191, 181, 0.04);
}

/* ============================================================
   DARK MODE
   ============================================================ */
[data-theme="dark"] {
  --color-bg:              #141418;
  --color-surface:         #1C1C22;
  --color-surface-2:       #222228;
  --color-surface-offset:  #28282F;
  --color-surface-dynamic: #2F2F38;
  --color-divider:         #35353F;
  --color-border:          #42424E;

  --color-text:          #E4E4E8;
  --color-text-muted:    #9999A8;
  --color-text-faint:    #666678;
  --color-text-inverse:  #141418;

  --color-primary:        #6FD4C9;
  --color-primary-hover:  #5BBFB5;
  --color-primary-active: #49A89F;
  --color-primary-muted:  rgba(111, 212, 201, 0.1);
  --color-primary-glow:   rgba(111, 212, 201, 0.25);

  --color-accent:        #B8B4E3;
  --color-accent-hover:  #A8A4D7;
  --color-accent-muted:  rgba(184, 180, 227, 0.1);
  --color-accent-glow:   rgba(184, 180, 227, 0.25);

  --color-coral:         #F0978A;
  --color-coral-hover:   #E8826F;
  --color-coral-muted:   rgba(240, 151, 138, 0.1);

  --color-success: #6FC285;
  --color-warning: #E0AA5E;
  --color-error:   #E07070;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.4);
  --shadow-glow-teal: 0 0 24px rgba(111, 212, 201, 0.2);
  --shadow-glow-lavender: 0 0 24px rgba(184, 180, 227, 0.2);

  --hex-stroke: rgba(111, 212, 201, 0.08);
  --hex-fill:   rgba(111, 212, 201, 0.03);
}

/* System preference fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:              #141418;
    --color-surface:         #1C1C22;
    --color-surface-2:       #222228;
    --color-surface-offset:  #28282F;
    --color-surface-dynamic: #2F2F38;
    --color-divider:         #35353F;
    --color-border:          #42424E;
    --color-text:          #E4E4E8;
    --color-text-muted:    #9999A8;
    --color-text-faint:    #666678;
    --color-text-inverse:  #141418;
    --color-primary:        #6FD4C9;
    --color-primary-hover:  #5BBFB5;
    --color-primary-active: #49A89F;
    --color-primary-muted:  rgba(111, 212, 201, 0.1);
    --color-primary-glow:   rgba(111, 212, 201, 0.25);
    --color-accent:        #B8B4E3;
    --color-accent-hover:  #A8A4D7;
    --color-accent-muted:  rgba(184, 180, 227, 0.1);
    --color-accent-glow:   rgba(184, 180, 227, 0.25);
    --color-coral:         #F0978A;
    --color-coral-hover:   #E8826F;
    --color-coral-muted:   rgba(240, 151, 138, 0.1);
    --color-success: #6FC285;
    --color-warning: #E0AA5E;
    --color-error:   #E07070;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow-teal: 0 0 24px rgba(111, 212, 201, 0.2);
    --shadow-glow-lavender: 0 0 24px rgba(184, 180, 227, 0.2);
    --hex-stroke: rgba(111, 212, 201, 0.08);
    --hex-fill:   rgba(111, 212, 201, 0.03);
  }
}

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

html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
  scroll-padding-top: var(--space-16);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body, sans-serif);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4, h5, h6 { text-wrap: balance; line-height: 1.15; font-family: var(--font-display); }
p, li, figcaption { text-wrap: pretty; max-width: 72ch; }

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

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

button { cursor: pointer; background: none; border: none; }
table { border-collapse: collapse; width: 100%; }

a, button, [role="button"], [role="link"], input, textarea, select {
  transition: color var(--transition-interactive),
              background var(--transition-interactive),
              border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border-width: 0;
}