/* ========================================
   BIZMAX - MODERN INVESTMENT PLATFORM
   Modern CSS Framework with Variables
   ======================================== */

/* ========================================
   1. CSS VARIABLES & DESIGN TOKENS
   ======================================== */
:root {
  /* Colors - Primary Palette */
  --color-primary: #0f172e;
  --color-primary-light: #1a2847;
  --color-primary-lighter: #2d3e5f;
  --color-secondary: #00a3e0;
  --color-secondary-light: #4dc9f0;
  --color-accent: #f39c12;
  --color-accent-light: #f5b041;
  
  /* Neutral Colors */
  --color-text: #1a1a1a;
  --color-text-secondary: #6b7280;
  --color-text-light: #9ca3af;
  --color-bg: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-bg-tertiary: #f3f4f6;
  --color-border: #e5e7eb;
  --color-border-light: #f0f1f3;
  
  /* Success & Status Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-info: #3b82f6;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0f172e 0%, #1a2847 100%);
  --gradient-accent: linear-gradient(135deg, #f39c12 0%, #f5b041 100%);
  --gradient-hero: linear-gradient(135deg, #0f172e 0%, #1a2847 50%, #00a3e0 100%);
  --gradient-subtle: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
  
  /* Typography */
  --font-primary: 'Rubik', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Courier New', monospace;
  
  --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: 3rem;
  --font-size-6xl: 3.5rem;
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  
  /* Spacing Scale */
  --spacing-0: 0;
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;
  --spacing-32: 8rem;
  --spacing-40: 10rem;
  --spacing-48: 12rem;
  
  /* Border Radius */
  --radius-none: 0;
  --radius-xs: 0.25rem;
  --radius-sm: 0.375rem;
  --radius-base: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  --radius-3xl: 3rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-none: none;
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-modal: 1000;
  --z-fixed: 1030;
  --z-fixed-top: 1040;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Breakpoints (matching Bootstrap) */
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-xxl: 1400px;
}

/* ========================================
   2. GLOBAL STYLES
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

/* ========================================
   3. TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  margin-bottom: var(--spacing-4);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-4);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

p:last-child {
  margin-bottom: 0;
}

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

a:hover {
  color: var(--color-secondary-light);
}

/* ========================================
   4. BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  padding: var(--spacing-3) var(--spacing-6);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
  user-select: none;
}

.btn:hover {
  transform: translateY(-2px);
}

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

/* Primary Button */
.btn-primary {
  background: var(--gradient-accent);
  color: white;
  border-color: var(--color-accent);
  box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 25px rgba(243, 156, 18, 0.4);
  background: linear-gradient(135deg, #f39c12 0%, #e8881d 100%);
}

/* Secondary Button */
.btn-secondary {
  background: var(--color-secondary);
  color: white;
  border-color: var(--color-secondary);
  box-shadow: 0 4px 15px rgba(0, 163, 224, 0.3);
}

.btn-secondary:hover {
  box-shadow: 0 6px 25px rgba(0, 163, 224, 0.4);
  background: var(--color-secondary-light);
}

/* Outline Button */
.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

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

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-ghost:hover {
  background: var(--color-bg-secondary);
  border-color: var(--color-text);
}

/* Size Variants */
.btn-sm {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-lg);
}

/* Loading State */
.btn:disabled,
.btn.loading {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* ========================================
   5. CARDS & CONTAINERS
   ======================================== */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-6);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--color-secondary);
}

.card-header {
  margin-bottom: var(--spacing-4);
  padding-bottom: var(--spacing-4);
  border-bottom: 1px solid var(--color-border);
}

.card-body {
  margin-bottom: var(--spacing-4);
}

.card-body:last-child {
  margin-bottom: 0;
}

.card-footer {
  margin-top: var(--spacing-4);
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--color-border);
}

/* Elevated Card */
.card-elevated {
  box-shadow: var(--shadow-lg);
  border: none;
}

/* ========================================
   6. LAYOUT & SPACING
   ======================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-6);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-4);
  }
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-6);
}

.section {
  padding: var(--spacing-24) 0;
}

.section-sm {
  padding: var(--spacing-12) 0;
}

.section-lg {
  padding: var(--spacing-32) 0;
}

.row {
  display: grid;
  gap: var(--spacing-8);
  align-items: start;
}

.row-2 { grid-template-columns: repeat(2, 1fr); }
.row-3 { grid-template-columns: repeat(3, 1fr); }
.row-4 { grid-template-columns: repeat(4, 1fr); }

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

@media (max-width: 768px) {
  .row-2, .row-3, .row-4 { grid-template-columns: 1fr; }
  .section { padding: var(--spacing-12) 0; }
}

/* ========================================
   7. UTILITY CLASSES
   ======================================== */

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Text Color */
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-accent { color: var(--color-accent); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-white { color: white; }

/* Background */
.bg-primary { background: var(--gradient-primary); color: white; }
.bg-secondary { background: var(--color-secondary); color: white; }
.bg-white { background: white; }
.bg-light { background: var(--color-bg-secondary); }
.bg-gray { background: var(--color-bg-tertiary); }
.bg-accent { background: var(--gradient-accent); color: white; }

/* Margin Utilities */
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }
.mt-12 { margin-top: var(--spacing-12); }

.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }
.mb-12 { margin-bottom: var(--spacing-12); }

.my-4 { margin-top: var(--spacing-4); margin-bottom: var(--spacing-4); }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Padding Utilities */
.p-4 { padding: var(--spacing-4); }
.p-6 { padding: var(--spacing-6); }
.p-8 { padding: var(--spacing-8); }
.px-4 { padding-left: var(--spacing-4); padding-right: var(--spacing-4); }
.py-6 { padding-top: var(--spacing-6); padding-bottom: var(--spacing-6); }

/* Display */
.hidden { display: none !important; }
.inline { display: inline; }
.inline-block { display: inline-block; }
.block { display: block; }
.flex { display: flex; }
.grid { display: grid; }

/* Flexbox */
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }

/* Border Radius */
.rounded-none { border-radius: var(--radius-none); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-base { border-radius: var(--radius-base); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-base { box-shadow: var(--shadow-base); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* Opacity */
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

/* ========================================
   8. ANIMATIONS & TRANSITIONS
   ======================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.fade-in {
  animation: fadeIn var(--transition-slow) ease-out;
}

.slide-in-up {
  animation: slideInUp var(--transition-slow) ease-out;
}

.slide-in-down {
  animation: slideInDown var(--transition-slow) ease-out;
}

.slide-in-left {
  animation: slideInLeft var(--transition-slow) ease-out;
}

.slide-in-right {
  animation: slideInRight var(--transition-slow) ease-out;
}

/* ========================================
   9. FORMS
   ======================================== */
form {
  margin-bottom: var(--spacing-8);
}

.form-group {
  margin-bottom: var(--spacing-6);
}

.form-group:last-child {
  margin-bottom: 0;
}

label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

input,
textarea,
select {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(0, 163, 224, 0.1);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-light);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* ========================================
   10. TABLES
   ======================================== */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-8);
}

th {
  background: var(--color-bg-secondary);
  padding: var(--spacing-4);
  text-align: left;
  font-weight: var(--font-weight-semibold);
  border-bottom: 2px solid var(--color-border);
}

td {
  padding: var(--spacing-4);
  border-bottom: 1px solid var(--color-border);
}

tr:hover {
  background: var(--color-bg-secondary);
}

/* ========================================
   11. RESPONSIVE UTILITIES
   ======================================== */
@media (max-width: 768px) {
  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }
  
  .section { padding: var(--spacing-12) 0; }
  .section-lg { padding: var(--spacing-16) 0; }
  
  .hidden-mobile { display: none !important; }
}

@media (min-width: 768px) {
  .hidden-desktop { display: none !important; }
}