/* ============================================
   CURAAH — Global Stylesheet
   Your Health, Your Control
   ============================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Georgia&display=swap');

/* --- CSS Variables (Design System) --- */
:root {
  /* Core Colors */
  --navy:        #060d1f;
  --navy-mid:    #0f1f3d;
  --navy-light:  #1a3360;
  --electric:    #3d9eff;
  --electric-dim: #1a7fd4;
  --white:       #ffffff;
  --off-white:   #f5f8ff;
  --light-bg:    #eef3fc;

  /* Text Colors */
  --text-primary:   #060d1f;
  --text-secondary: #4a5568;
  --text-muted:     #8a9bb0;
  --text-on-dark:   #ffffff;
  --text-on-dark-muted: rgba(255, 255, 255, 0.6);

  /* Semantic Colors */
  --success:  #00c48c;
  --warning:  #ff9f00;
  --danger:   #ff4757;
  --info:     #3d9eff;

  /* Borders */
  --border-light: rgba(61, 158, 255, 0.15);
  --border-dark:  rgba(255, 255, 255, 0.08);
  --border-card:  #dde6f5;

  /* Spacing */
  --section-padding: 90px 6%;
  --nav-height: 70px;

  /* Border Radius */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  24px;

  /* Shadows */
  --shadow-sm: 0 2px 12px rgba(6, 13, 31, 0.08);
  --shadow-md: 0 4px 24px rgba(6, 13, 31, 0.12);
  --shadow-lg: 0 8px 40px rgba(6, 13, 31, 0.16);
  --shadow-electric: 0 4px 24px rgba(61, 158, 255, 0.25);

  /* Transitions */
  --transition: all 0.22s ease;
}

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

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

body {
  font-family: 'Inter', sans-serif;
  color: var(--text-primary);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(6, 13, 31, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-dark);
  display: flex;
  align-items: center;
  padding: 0 6%;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.nav-logo-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.3px;
}

.nav-logo-tag {
  font-size: 9px;
  font-weight: 500;
  color: var(--electric);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-on-dark-muted);
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover {
  color: var(--white);
}

.nav-links a.active {
  color: var(--electric);
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Hamburger (mobile) */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile Menu */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--navy);
  border-bottom: 1px solid var(--border-dark);
  padding: 20px 6%;
  flex-direction: column;
  gap: 16px;
  z-index: 999;
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-on-dark-muted);
  padding: 8px 0;
  border-bottom: 1px solid var(--border-dark);
}

.nav-mobile a:last-child {
  border-bottom: none;
}

.nav-mobile a:hover {
  color: var(--white);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  padding: 11px 24px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.1px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Primary — electric blue */
.btn-primary {
  background: var(--electric);
  color: var(--white);
  box-shadow: var(--shadow-electric);
}

.btn-primary:hover {
  background: var(--electric-dim);
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(61, 158, 255, 0.35);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Secondary — outlined */
.btn-secondary {
  background: transparent;
  color: var(--electric);
  border: 1.5px solid var(--electric);
}

.btn-secondary:hover {
  background: rgba(61, 158, 255, 0.08);
}

/* Dark — navy */
.btn-dark {
  background: var(--navy);
  color: var(--white);
  border: 1.5px solid var(--border-dark);
}

.btn-dark:hover {
  background: var(--navy-mid);
  border-color: var(--electric);
}

/* Ghost — white outlined (for dark backgrounds) */
.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.6);
}

/* Sizes */
.btn-sm {
  font-size: 13px;
  padding: 8px 16px;
}

.btn-lg {
  font-size: 16px;
  padding: 14px 32px;
  border-radius: var(--radius-lg);
}

.btn-full {
  width: 100%;
}

/* ============================================
   BADGES
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: 0.3px;
}

.badge-blue   { background: rgba(61,158,255,0.12); color: #1a7fd4; }
.badge-green  { background: rgba(0,196,140,0.12);  color: #00a376; }
.badge-orange { background: rgba(255,159,0,0.12);  color: #cc7f00; }
.badge-red    { background: rgba(255,71,87,0.12);  color: #cc2233; }
.badge-navy   { background: rgba(6,13,31,0.08);    color: var(--navy-mid); }

.badge-dot::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  display: inline-block;
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--white);
  border: 1.5px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 11px 14px;
  transition: var(--transition);
  outline: none;
  width: 100%;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--electric);
  box-shadow: 0 0 0 3px rgba(61, 158, 255, 0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238a9bb0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-error {
  font-size: 12px;
  color: var(--danger);
  margin-top: 2px;
}

.form-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Dark form inputs (for dark backgrounds) */
.form-input-dark {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--white);
}

.form-input-dark::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.form-input-dark:focus {
  border-color: var(--electric);
  background: rgba(255, 255, 255, 0.09);
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--white);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(61, 158, 255, 0.25);
}

.card-dark {
  background: var(--navy-mid);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 24px;
}

/* ============================================
   SECTION HELPERS
   ============================================ */
.section {
  padding: var(--section-padding);
}

.section-light {
  background: var(--off-white);
}

.section-dark {
  background: var(--navy);
}

.section-mid {
  background: var(--light-bg);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--electric);
  margin-bottom: 10px;
}

.section-title {
  font-family: 'Georgia', serif;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}

.section-title-white {
  color: var(--white);
}

.section-sub {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 560px;
}

.section-sub-white {
  color: var(--text-on-dark-muted);
}

.section-header {
  margin-bottom: 52px;
}

.section-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 52px;
}

/* ============================================
   DIVIDER
   ============================================ */
.divider {
  height: 1px;
  background: var(--border-card);
  margin: 0;
}

.divider-dark {
  background: var(--border-dark);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--navy);
  border-top: 1px solid var(--border-dark);
  padding: 60px 6% 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  max-width: 1200px;
  margin: 0 auto 48px;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand-desc {
  font-size: 13px;
  color: var(--text-on-dark-muted);
  line-height: 1.7;
  max-width: 260px;
  margin-bottom: 20px;
}

.footer-built {
  font-size: 11px;
  color: var(--text-on-dark-muted);
  letter-spacing: 0.3px;
}

.footer-built span {
  color: var(--electric);
}

.footer-col-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 18px;
}

.footer-col-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col-links a {
  font-size: 13px;
  color: var(--text-on-dark-muted);
  transition: var(--transition);
}

.footer-col-links a:hover {
  color: var(--electric);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--border-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom-text {
  font-size: 12px;
  color: var(--text-on-dark-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  font-size: 12px;
  color: var(--text-on-dark-muted);
}

.footer-bottom-links a:hover {
  color: var(--electric);
}

/* ============================================
   UTILITIES
   ============================================ */
.text-center  { text-align: center; }
.text-left    { text-align: left; }
.text-right   { text-align: right; }

.text-electric { color: var(--electric); }
.text-muted    { color: var(--text-muted); }
.text-white    { color: var(--white); }

.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }

.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }

.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }

.w-full { width: 100%; }

/* Page top padding (because navbar is fixed) */
.page-top {
  padding-top: var(--nav-height);
}

/* ============================================
   RESPONSIVE — MOBILE
   ============================================ */
@media (max-width: 768px) {
  :root {
    --section-padding: 60px 5%;
  }

  .nav-links,
  .nav-actions {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .section-header-flex {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}