/* ==========================================
   WEBZORX GLOBAL DESIGN SYSTEM
   Version: 1.0
   Author: WEBZORX
========================================== */

/* ==========================================
   1. CSS VARIABLES (BRAND SYSTEM)
========================================== */

:root {

  /* ===== Brand Colors ===== */
  --color-primary: #1DA1F2;       /* Electric Blue */
  --color-primary-dark: #0d8ddb;
  --color-accent: #00CFFF;
  --color-dark: #0B1C2D;          /* Deep Navy */
  --color-dark-2: #111827;
  --color-gray-light: #F4F6F9;
  --color-text: #1E1E1E;
  --color-text-light: #6B7280;
  --color-white: #ffffff;
  --color-border: #E5E7EB;

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

  /* ===== Spacing System (8px Grid) ===== */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;

  /* ===== Radius ===== */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  /* ===== Shadows ===== */
  --shadow-soft: 0 4px 20px rgba(0,0,0,0.05);
  --shadow-hover: 0 6px 25px rgba(29,161,242,0.25);

  /* ===== Transition ===== */
  --transition-fast: 0.3s ease;
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================
   2. 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);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Remove default link styling */
a {
  text-decoration: none;
  color: inherit;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--space-2);
}

h1 { font-size: 48px; }
h2 { font-size: 36px; }
h3 { font-size: 28px; }
h4 { font-size: 22px; }

p {
  font-size: 18px;
  color: var(--color-text-light);
  margin-bottom: var(--space-2);
}

/* Responsive Typography */

@media (max-width: 1024px) {
  h1 { font-size: 40px; }
  h2 { font-size: 30px; }
  h3 { font-size: 24px; }
  p  { font-size: 16px; }
}

@media (max-width: 768px) {
  h1 { font-size: 28px; }
  h2 { font-size: 22px; }
  h3 { font-size: 18px; }
  p  { font-size: 15px; }
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.section {
  padding: var(--space-6) 0;
}

.grid {
  display: grid;
  gap: var(--space-3);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* ==========================================
   5. BUTTON SYSTEM
========================================== */

.btn {
  display: inline-block;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: center;
  min-height: 44px; /* Accessibility touch target */
}

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

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

.btn-outline {
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

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

/* ==========================================
   6. CARD SYSTEM
========================================== */

.card {
  background: var(--color-white);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
}

.card:hover {
  transform: translateY(-5px);
}

/* ==========================================
   7. FORM SYSTEM
========================================== */

input,
textarea,
select {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-family: var(--font-body);
  font-size: 16px;
  transition: var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(29,161,242,0.2);
}

/* ==========================================
   8. NAVIGATION
========================================== */

.navbar {
  background: var(--color-dark);
  padding: var(--space-2) 0;
}

.navbar a {
  color: var(--color-white);
  margin-right: var(--space-3);
  transition: var(--transition-fast);
}

.navbar a:hover {
  color: var(--color-accent);
}

/* ==========================================
   9. DARK SECTION (TECH LOOK)
========================================== */

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

.section-dark h1,
.section-dark h2,
.section-dark h3 {
  color: var(--color-white);
}

/* ==========================================
   10. ACCESSIBILITY
========================================== */

:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* ==========================================
   11. UTILITIES
========================================== */

.text-center { text-align: center; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }

/* ==========================================
   12. SMOOTH ANIMATIONS
========================================== */

.fade-in {
  animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}