/* RepSpheres Business Plan - Premium Design System */
/* Import Premium Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@500;600;700&family=Orbitron:wght@500;600;700;800;900&display=swap');

/* ===== CSS Custom Properties (Design System) ===== */
:root {
  /* Colors - Navy, Electric Blue, Emerald, Gold */
  --color-primary: #0F172A;
  --color-primary-light: #1E293B;
  --color-secondary: #3B82F6;
  --color-secondary-light: #60A5FA;
  --color-accent: #10B981;
  --color-accent-light: #34D399;
  --color-gold: #F59E0B;
  --color-gold-light: #FCD34D;

  /* Grayscale */
  --color-white: #FFFFFF;
  --color-gray-50: #F8FAFC;
  --color-gray-100: #F1F5F9;
  --color-gray-200: #E2E8F0;
  --color-gray-300: #CBD5E1;
  --color-gray-400: #94A3B8;
  --color-gray-500: #64748B;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1E293B;
  --color-gray-900: #0F172A;

  /* Typography */
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-brand: 'Orbitron', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Typography Scale */
  --text-xs: 0.875rem;     /* 14px */
  --text-sm: 1rem;         /* 16px */
  --text-base: 1.125rem;   /* 18px */
  --text-lg: 1.25rem;      /* 20px */
  --text-xl: 1.5rem;       /* 24px */
  --text-2xl: 2rem;        /* 32px */
  --text-3xl: 2.5rem;      /* 40px */
  --text-4xl: 3rem;        /* 48px */
  --text-5xl: 4rem;        /* 64px */
  --text-6xl: 4.5rem;      /* 72px */

  /* Spacing (8px grid) */
  --space-1: 0.5rem;   /* 8px */
  --space-2: 1rem;     /* 16px */
  --space-3: 1.5rem;   /* 24px */
  --space-4: 2rem;     /* 32px */
  --space-5: 2.5rem;   /* 40px */
  --space-6: 3rem;     /* 48px */
  --space-8: 4rem;     /* 64px */
  --space-10: 5rem;    /* 80px */
  --space-12: 6rem;    /* 96px */

  /* Effects */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow-blue: 0 0 20px rgba(59, 130, 246, 0.3);
  --shadow-glow-emerald: 0 0 20px rgba(16, 185, 129, 0.3);
  --shadow-glow-gold: 0 0 20px rgba(245, 158, 11, 0.3);

  /* Border Radius */
  --radius-sm: 0.375rem;  /* 6px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-2xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ===== Base Typography Enhancement ===== */
body {
  font-family: var(--font-body);
  line-height: 1.7;
  color: var(--color-gray-700);
  background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

/* Brand Text (Orbitron for RepSpheres) */
.brand-text {
  font-family: var(--font-brand);
  font-weight: 700;
  letter-spacing: 0.05em;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h1 {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-6xl));
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  margin-bottom: var(--space-3);
}

h3 {
  font-size: clamp(var(--text-xl), 3vw, var(--text-3xl));
  margin-bottom: var(--space-3);
}

h4 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
}

p {
  margin-bottom: var(--space-3);
  max-width: 75ch;
}

/* ===== Password Modal Styles ===== */
.auth-modal-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(15, 23, 42, 0.95) 0%,
    rgba(30, 41, 59, 0.95) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  animation: fadeIn var(--transition-base) ease-out;
}

.auth-modal {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  max-width: 450px;
  width: 90%;
  box-shadow:
    var(--shadow-2xl),
    0 0 0 1px rgba(255, 255, 255, 0.1),
    0 0 60px rgba(59, 130, 246, 0.2);
  animation: slideUp var(--transition-spring) ease-out;
}

.auth-modal-logo {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glow-blue);
}

.auth-modal-logo svg {
  width: 48px;
  height: 48px;
  color: white;
}

.auth-modal-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  text-align: center;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
  letter-spacing: -0.02em;
}

.auth-modal-subtitle {
  text-align: center;
  color: var(--color-gray-500);
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
}

.auth-input-group {
  position: relative;
  margin-bottom: var(--space-4);
}

.auth-input-icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-400);
  width: 20px;
  height: 20px;
  pointer-events: none;
  transition: color var(--transition-base);
}

.auth-input {
  width: 100%;
  padding: var(--space-3) var(--space-3) var(--space-3) calc(var(--space-3) + 32px);
  font-family: var(--font-body);
  font-size: var(--text-base);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  color: var(--color-primary);
  transition: all var(--transition-base);
  outline: none;
}

.auth-input:focus {
  border-color: var(--color-secondary);
  box-shadow:
    0 0 0 4px rgba(59, 130, 246, 0.1),
    var(--shadow-glow-blue);
}

.auth-input:focus + .auth-input-icon {
  color: var(--color-secondary);
}

.auth-error {
  display: none;
  color: #EF4444;
  font-size: var(--text-sm);
  margin-top: var(--space-2);
  padding: var(--space-2);
  background: rgba(239, 68, 68, 0.1);
  border-radius: var(--radius-md);
  animation: slideDown var(--transition-base) ease-out, shake 0.5s ease-out;
}

.auth-error.show {
  display: block;
}

.auth-button {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.auth-button:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--shadow-glow-blue);
}

.auth-button:active:not(:disabled) {
  transform: translateY(0);
}

.auth-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.auth-button-loading {
  display: none;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.auth-button.loading .auth-button-text {
  opacity: 0;
}

.auth-button.loading .auth-button-loading {
  display: block;
}

.auth-spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ===== Enhanced Card Styles ===== */
.card, .metric-card, .feature-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow:
    var(--shadow-lg),
    0 0 0 1px rgba(59, 130, 246, 0.05);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-accent), var(--color-gold));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow:
    var(--shadow-2xl),
    0 0 0 1px rgba(59, 130, 246, 0.1),
    var(--shadow-glow-blue);
}

.card:hover::before {
  opacity: 1;
}

/* ===== Hero Section Enhancement ===== */
.hero-section {
  position: relative;
  padding: var(--space-12) var(--space-4);
  overflow: hidden;
  background: linear-gradient(135deg,
    var(--color-primary) 0%,
    var(--color-primary-light) 50%,
    var(--color-primary) 100%);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(16, 185, 129, 0.15) 0%, transparent 50%);
  animation: pulse 8s ease-in-out infinite;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.hero-title {
  font-family: var(--font-brand);
  color: var(--color-white);
  font-size: clamp(var(--text-3xl), 6vw, var(--text-6xl));
  font-weight: 800;
  margin-bottom: var(--space-4);
  letter-spacing: 0.1em;
  background: linear-gradient(135deg, var(--color-white), var(--color-secondary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp var(--transition-slow) ease-out;
}

.hero-subtitle {
  color: var(--color-gray-300);
  font-size: clamp(var(--text-base), 2vw, var(--text-xl));
  margin-bottom: var(--space-8);
  animation: fadeInUp var(--transition-slow) 0.2s ease-out;
}

/* ===== Metrics and Stats ===== */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-4);
  margin: var(--space-8) 0;
}

.metric-card {
  text-align: center;
  padding: var(--space-5);
}

.metric-value {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-2);
  display: block;
}

.metric-label {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* ===== Button System ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--shadow-glow-blue);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-secondary);
  border: 2px solid var(--color-secondary);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--color-secondary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===== Animations ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

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

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-5px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(5px);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  :root {
    --text-6xl: 3rem;
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --space-12: 4rem;
    --space-10: 3rem;
    --space-8: 2.5rem;
  }

  .auth-modal {
    padding: var(--space-6);
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== Utility Classes ===== */
.gradient-text {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-center {
  text-align: center;
}

.mb-4 {
  margin-bottom: var(--space-4);
}

.mb-6 {
  margin-bottom: var(--space-6);
}

.mt-8 {
  margin-top: var(--space-8);
}

/* ===== Icon System ===== */
.icon {
  display: inline-block;
  width: 24px;
  height: 24px;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  vertical-align: middle;
}

/* Icon Sizes */
.icon-xs {
  width: 14px;
  height: 14px;
}

.icon-sm {
  width: 16px;
  height: 16px;
}

.icon-md {
  width: 24px;
  height: 24px;
}

.icon-lg {
  width: 32px;
  height: 32px;
}

.icon-xl {
  width: 48px;
  height: 48px;
}

.icon-2xl {
  width: 64px;
  height: 64px;
}

/* Icon Colors */
.icon-primary {
  color: var(--color-secondary);
}

.icon-accent {
  color: var(--color-accent);
}

.icon-gold {
  color: var(--color-gold);
}

.icon-white {
  color: var(--color-white);
}

.icon-gray {
  color: var(--color-gray-500);
}

/* Icon with Gradient */
.icon-gradient {
  color: var(--color-secondary);
}

.icon-gradient svg * [stroke] {
  stroke: url(#icon-gradient-blue-emerald);
}

/* Animated Icons */
.icon-spin {
  animation: spin 2s linear infinite;
}

.icon-pulse {
  animation: pulse 2s ease-in-out infinite;
}

.icon-bounce {
  animation: bounce 1s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

/* Icon in Buttons */
.btn .icon {
  width: 20px;
  height: 20px;
  margin-right: var(--space-1);
}

/* Feature Icons */
.feature-icon {
  width: 48px;
  height: 48px;
  padding: var(--space-2);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.1));
  border-radius: var(--radius-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
  transition: all var(--transition-base);
}

.feature-icon:hover {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(16, 185, 129, 0.2));
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-blue);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-secondary);
}