/* =========================================
   DEBTVAULT PREMIUM FINTECH DESIGN SYSTEM
   Global Styles — main.css
   ========================================= */

/* ------------------------------
   FONT IMPORTS
------------------------------ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ------------------------------
   ROOT THEME VARIABLES
------------------------------ */
:root {
  --color-primary: #0E7C86;
  --color-primary-dark: #0A5F64;

  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-info: #3B82F6;

  --color-text: #111827;
  --color-subtext: #6B7280;

  --color-bg: #F9FAFB;
  --color-card: #FFFFFF;

  --radius: 12px;
  --radius-lg: 18px;

  --shadow-sm: 0 2px 6px rgba(0,0,0,0.06);
  --shadow-md: 0 6px 18px rgba(0,0,0,0.08);

  --transition: 0.25s ease;
}

/* ------------------------------
   GLOBAL RESET
------------------------------ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

/* ------------------------------
   UTILITIES
------------------------------ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: auto;
  padding: 0 20px;
}

.section {
  padding: 80px 20px;
}

.section-sm {
  padding: 50px 20px;
}

/* Spacing */
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

/* Text */
.text-center { text-align: center; }
.text-muted { color: var(--color-subtext); }

/* ------------------------------
   HEADINGS
------------------------------ */
h1, h2, h3, h4 {
  color: var(--color-text);
  font-weight: 700;
}

h1 {
  font-size: 2.8rem;
  line-height: 1.2;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.4rem;
  font-weight: 600;
}

p {
  font-size: 1.05rem;
  color: var(--color-subtext);
}

/* ------------------------------
   NAVIGATION
------------------------------ */
.nav {
  background: var(--color-card);
  border-bottom: 1px solid #e5e7eb;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  margin: auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-text);
}

.logo span {
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  gap: 30px;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 500;
  transition: var(--transition);
}

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

/* ------------------------------
   BUTTONS
------------------------------ */
.btn-primary {
  background: var(--color-primary);
  padding: 12px 22px;
  color: white !important;
  font-weight: 600;
  border-radius: var(--radius);
  display: inline-block;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

.btn-secondary {
  padding: 12px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-weight: 600;
  display: inline-block;
  transition: var(--transition);
}

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

/* ------------------------------
   INPUTS & FORMS
------------------------------ */
input, textarea, select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #d1d5db;
  border-radius: var(--radius);
  margin-top: 6px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s ease;
  background: white;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* ------------------------------
   CARDS
------------------------------ */
.card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
}

/* ------------------------------
   FOOTER
------------------------------ */
.footer {
  background: var(--color-card);
  padding: 50px 20px;
  margin-top: 80px;
  border-top: 1px solid #e5e7eb;
}

.footer-grid {
  max-width: 1200px;
  margin: auto;
  display: grid;
  gap: 30px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.footer-col h4 {
  font-weight: 700;
  margin-bottom: 12px;
}

.footer a {
  text-decoration: none;
  color: var(--color-subtext);
  display: block;
  margin-bottom: 8px;
  transition: var(--transition);
}

.footer a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  text-align: center;
  margin-top: 40px;
  color: var(--color-subtext);
}

/* ------------------------------
   RESPONSIVENESS
------------------------------ */
@media (max-width: 768px) {
  h1 {
    font-size: 2.1rem;
  }
  .nav-links {
    gap: 18px;
  }
}