/* ============================================================
   TCP Inter – Design System
   Variables CSS, Reset, Utilitaires
   ------------------------------------------------------------
   Design & Development: HeyHappy Digital Agency
   heyhappyproject@gmail.com | +229 01 68 62 87 40
   https://happyazondekon.github.io/
   ============================================================ */

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

/* ---------- CSS Variables ---------- */
:root {
  /* Colors */
  --color-primary:           #00365f;
  --color-primary-container: #1e4d7a;
  --color-secondary:         #1360a7;
  --color-secondary-container: #79b3ff;
  --color-tertiary:          #00375b;
  --color-surface:           #f9f9ff;
  --color-surface-low:       #f0f3ff;
  --color-surface-container: #e7eeff;
  --color-surface-high:      #dfe8fd;
  --color-on-surface:        #131c2a;
  --color-on-surface-var:    #42474f;
  --color-inverse-surface:   #283140;
  --color-inverse-on-surface: #ecf1ff;
  --color-outline:           #727780;
  --color-outline-var:       #c2c7d0;
  --color-white:             #ffffff;
  --color-error:             #ba1a1a;

  /* Typography */
  --font-heading: 'Manrope', sans-serif;
  --font-body:    'Inter', sans-serif;

  /* Spacing */
  --section-py: 5rem;
  --container-max: 1200px;
  --container-px: 1.5rem;

  /* Border radius */
  --radius-sm:  0.25rem;
  --radius:     0.5rem;
  --radius-md:  0.75rem;
  --radius-lg:  1rem;
  --radius-xl:  1.5rem;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,54,95,0.08);
  --shadow-md:  0 4px 16px rgba(0,54,95,0.12);
  --shadow-lg:  0 8px 32px rgba(0,54,95,0.16);

  /* Transition */
  --transition: 0.25s ease;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-on-surface);
  background-color: var(--color-surface);
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ---------- Container ---------- */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

/* ---------- Typography ---------- */
.headline-xl {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.17;
  letter-spacing: -0.02em;
  color: var(--color-on-surface);
}

.headline-lg {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.headline-md {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 600;
  line-height: 1.33;
}

.body-lg {
  font-size: 1.125rem;
  line-height: 1.56;
}

.body-md {
  font-size: 1rem;
  line-height: 1.5;
}

.body-sm {
  font-size: 0.875rem;
  line-height: 1.43;
}

.label-lg {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition),
              box-shadow var(--transition);
  white-space: nowrap;
}

.btn:hover  { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--color-secondary);
  color: var(--color-white);
  border-color: var(--color-secondary);
}
.btn-primary:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.6);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--color-white);
}

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

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.0625rem;
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* ---------- Section spacing ---------- */
.section {
  padding-block: var(--section-py);
}

.section-alt {
  background-color: var(--color-surface-low);
}

.section-dark {
  background-color: var(--color-inverse-surface);
  color: var(--color-inverse-on-surface);
}

/* ---------- Section header ---------- */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header .section-label {
  display: inline-block;
  color: var(--color-secondary);
  margin-bottom: 0.5rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  max-width: 560px;
  margin-inline: auto;
  color: var(--color-on-surface-var);
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

/* ---------- Badge ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.875rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  background: var(--color-surface-container);
  color: var(--color-primary);
}

/* ---------- Floating CTA (mobile) ---------- */
.fab-cta {
  display: none;
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 900;
}

@media (max-width: 767px) {
  .fab-cta { display: flex; }
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.text-white  { color: var(--color-white); }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-muted { color: var(--color-on-surface-var); }

.mt-1  { margin-top: 0.25rem; }
.mt-2  { margin-top: 0.5rem; }
.mt-3  { margin-top: 0.75rem; }
.mt-4  { margin-top: 1rem; }
.mt-6  { margin-top: 1.5rem; }
.mt-8  { margin-top: 2rem; }
.mb-4  { margin-bottom: 1rem; }
.mb-6  { margin-bottom: 1.5rem; }
.mb-8  { margin-bottom: 2rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }

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

/* ---------- Grid helpers ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  :root { --section-py: 3.5rem; }
}

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

/* ---------- Footer disabled link ---------- */
.footer-link-disabled {
  color: rgba(255,255,255,0.3);
  font-size: 0.875rem;
  cursor: default;
}