/**
 * Verbaas Groups — STYLE PRINCIPAL
 * Corporate FinTech — Dutch Professional Design
 */

/* ========================================
   1. CSS CUSTOM PROPERTIES
   ======================================== */

:root {
  /* Palette */
  --color-primary: #0A1F3F;
  --color-primary-light: #132D52;
  --color-primary-dark: #06152B;
  --color-accent: #C8963E;
  --color-accent-light: #D4A96A;
  --color-accent-bg: rgba(200, 150, 62, 0.08);
  --color-success: #1A8C7A;
  --color-success-bg: rgba(26, 140, 122, 0.08);
  --color-neutral-50: #F9FAFB;
  --color-neutral-100: #F3F4F6;
  --color-neutral-200: #E5E7EB;
  --color-neutral-300: #D1D5DB;
  --color-neutral-500: #6B7280;
  --color-neutral-700: #374151;
  --color-neutral-900: #111827;
  --color-white: #FFFFFF;
  --color-border: #E5E7EB;

  /* Typography */
  --font-sans: 'Inter', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.25rem;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.2;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.75;

  --letter-spacing-tight: -0.02em;
  --letter-spacing-normal: -0.01em;

  /* Spacing */
  --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;

  /* Borders */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(10, 31, 63, 0.04);
  --shadow-sm: 0 1px 3px rgba(10, 31, 63, 0.06), 0 1px 2px rgba(10, 31, 63, 0.04);
  --shadow-md: 0 4px 8px rgba(10, 31, 63, 0.06), 0 2px 4px rgba(10, 31, 63, 0.04);
  --shadow-lg: 0 12px 24px rgba(10, 31, 63, 0.08), 0 4px 8px rgba(10, 31, 63, 0.04);
  --shadow-xl: 0 20px 40px rgba(10, 31, 63, 0.1), 0 8px 16px rgba(10, 31, 63, 0.04);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 150ms var(--ease-out);
  --transition-base: 200ms var(--ease-out);
  --transition-slow: 350ms var(--ease-out);

  /* Layout */
  --container-max: 1200px;
  --container-padding: var(--space-6);
}

@media (min-width: 768px) {
  :root {
    --container-padding: var(--space-8);
  }
}

@media (min-width: 1024px) {
  :root {
    --container-padding: var(--space-12);
  }
}


/* ========================================
   2. RESET
   ======================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-neutral-700);
  background-color: var(--color-white);
  letter-spacing: var(--letter-spacing-normal);
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}


/* ========================================
   3. TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-primary);
  letter-spacing: var(--letter-spacing-tight);
}

h1 { font-size: var(--font-size-5xl); margin-bottom: var(--space-6); }
h2 { font-size: var(--font-size-3xl); margin-bottom: var(--space-4); }
h3 { font-size: var(--font-size-xl); margin-bottom: var(--space-3); }
h4 { font-size: var(--font-size-lg); margin-bottom: var(--space-2); }

p { margin-bottom: var(--space-4); line-height: var(--line-height-relaxed); }

.amount,
.financial-value {
  font-variant-numeric: tabular-nums;
  font-weight: var(--font-weight-semibold);
}

.text-body-sm { font-size: var(--font-size-sm); color: var(--color-neutral-500); }
.text-body-lg { font-size: var(--font-size-lg); }


/* ========================================
   4. LAYOUT
   ======================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-8);
}

.grid-col-3 { grid-column: span 3; }
.grid-col-4 { grid-column: span 4; }
.grid-col-5 { grid-column: span 5; }
.grid-col-6 { grid-column: span 6; }
.grid-col-7 { grid-column: span 7; }
.grid-col-8 { grid-column: span 8; }
.grid-col-12 { grid-column: span 12; }

@media (max-width: 1023px) {
  .grid-col-3,
  .grid-col-4 { grid-column: span 6; }
}

@media (max-width: 767px) {
  .grid-col-3,
  .grid-col-4,
  .grid-col-5,
  .grid-col-6,
  .grid-col-7,
  .grid-col-8 { grid-column: span 12; }
}

section {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

@media (max-width: 767px) {
  section {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
  }
}

.section-light { background-color: var(--color-neutral-50); }
.section-dark {
  background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
}
.section-dark h2,
.section-dark h3 { color: var(--color-white); }


/* ========================================
   5. BUTTONS
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: 1.4;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
  letter-spacing: 0;
}

.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--font-size-base); border-radius: var(--radius-lg); }

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover {
  background-color: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-white);
}
.btn-accent:hover {
  background-color: var(--color-accent-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}
.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-outline-light {
  border: 1.5px solid rgba(255,255,255,0.3);
  color: var(--color-white);
  background: transparent;
}
.btn-outline-light:hover {
  background-color: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}


/* ========================================
   6. FORMS
   ======================================== */

.form-group { margin-bottom: var(--space-5); }

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-2);
  color: var(--color-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(10, 31, 63, 0.1);
}

.form-input.is-valid { border-color: var(--color-success); }
.form-input.is-invalid { border-color: #DC2626; }

.form-error {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--font-size-xs);
  color: #DC2626;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}


/* ========================================
   7. UTILITIES
   ======================================== */

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-neutral-500); }

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.hidden { display: none !important; }

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

@media (max-width: 767px) {
  .hide-mobile { display: none !important; }
}
@media (min-width: 768px) {
  .hide-desktop { display: none !important; }
}