/* CSS Base - Design System */

:root {
  /* Brand Colors - Core Palette */
  --color-dark-navy: #091323;
  --color-teal-dark: #264653;
  --color-teal-medium: #1E7A7C;
  --color-teal-darker: #1D6368;
  --color-lime: #E0AC1B;
  --color-blue: #0884C1;

  /* Semantic Colors */
  --color-primary: var(--color-teal-medium);
  --color-secondary: var(--color-teal-dark);
  --color-accent: var(--color-lime);
  --color-info: var(--color-blue);
  --color-surface: var(--color-dark-navy);
  --color-surface-variant: var(--color-teal-darker);

  /* Text Colors - Semantic */
  --text-primary: var(--color-dark-navy);
  --text-on-primary: #ffffff;
  --text-on-surface: #ffffff;
  --text-on-surface-variant: var(--color-lime);
  --text-accent: var(--color-lime);
  --text-info: var(--color-blue);
  --text-muted: rgba(255, 255, 255, 0.7);

  /* Background System */
  --bg-primary: var(--gradient-surface);
  --bg-secondary: var(--gradient-primary);
  --bg-accent: var(--gradient-accent);
  --bg-surface: var(--color-surface);
  --bg-surface-variant: var(--color-surface-variant);

  /* Gradient System */
  --gradient-surface: linear-gradient(45deg, #091323, #1D6368);
  --gradient-surface-login: radial-gradient(ellipse 100% 150% at 0% 0%, #DDED43 2%, #0884C1 15%, #1E7A7C 30%, #264653 50%, #091323 70%, #091323 100%);
  --gradient-primary: linear-gradient(135deg, #264653, #1E7A7C);
  --gradient-accent: linear-gradient(90deg, #1E7A7C, #0884C1);
  --gradient-vibrant: linear-gradient(180deg, #DDED43, #0884C1);

  /* Interactive States */
  --color-hover: var(--color-blue);
  --color-active: var(--color-teal-darker);
  --color-focus: var(--color-lime);
  --color-disabled: rgba(255, 255, 255, 0.3);

  /* Component Tokens */
  --button-primary-bg: var(--color-lime);
  --button-primary-text: var(--text-primary);
  --button-primary-hover: var(--color-blue);
  --button-secondary-bg: transparent;
  --button-secondary-text: var(--text-on-surface);
  --button-secondary-border: var(--color-lime);

  /* Logo & Brand */
  --logo-primary: var(--color-teal-medium);
  --logo-on-dark: var(--color-lime);

  /* Input & Form */
  --input-bg: rgba(255, 255, 255, 0.1);
  --input-border: rgba(255, 255, 255, 0.2);
  --input-border-focus: var(--color-lime);
  --input-text: var(--text-on-surface);
  --input-placeholder: var(--text-muted);

  /* Progress & Status */
  --progress-bg: rgba(255, 255, 255, 0.2);
  --progress-fill: var(--color-lime);
  --progress-inactive: var(--color-disabled);

/* Reset and Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
}

/* Component Classes - Buttons */
.btn-primary {
  background: var(--button-primary-bg);
  color: var(--button-primary-text);
  border: none;
  border-radius: 12px;
  padding: 16px 24px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary:hover {
  background: var(--button-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(221, 237, 67, 0.3);
}

.btn-secondary {
  background: var(--button-secondary-bg);
  color: var(--button-secondary-text);
  border: 1px solid var(--button-secondary-border);
  border-radius: 12px;
  padding: 16px 24px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

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

/* Logo Classes */
.logo-primary {
  color: var(--logo-on-dark);
}

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

/* Text Utility Classes */
.text-on-surface {
  color: var(--text-on-surface);
}

.text-on-surface-variant {
  color: var(--text-on-surface-variant);
}

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

.text-info {
  color: var(--text-info);
}

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

/* Background Utility Classes */
.bg-surface {
  background: var(--bg-primary);
}

.bg-surface-variant {
  background: var(--bg-surface-variant);
}

.bg-gradient-primary {
  background: var(--gradient-primary);
}

.bg-gradient-accent {
  background: var(--gradient-accent);
}

.bg-gradient-surface {
  background: var(--gradient-surface);
}

/* Input Classes */
.input-field {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--input-text);
  border-radius: 8px;
  padding: 12px 16px;
  transition: all 0.3s ease;
  font-size: 16px; /* Prevents zoom on iOS */
  line-height: 1.5;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

.input-field:focus {
  border-color: var(--input-border-focus);
  outline: none;
  box-shadow: 0 0 0 2px rgba(221, 237, 67, 0.2);
  transform: none; /* Prevent any transforms that might cause zoom */
}

.input-field::placeholder {
  color: var(--input-placeholder);
}

/* Mobile Touch Optimizations */
@media (max-width: 768px) {
  .input-field {
    font-size: 16px; /* Critical: prevents zoom on iOS */
    min-height: 44px; /* Minimum touch target */
    padding: 12px 16px;
  }

  /* Touch-friendly button sizes */
  .btn-primary,
  .btn-secondary {
    min-height: 44px;
    padding: 12px 24px;
    font-size: 16px;
  }

  /* Prevent text selection on touch */
  .btn-primary,
  .btn-secondary,
  .progress-dot {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
  }

  /* Improve touch scrolling */
  body {
    -webkit-overflow-scrolling: touch;
    overflow-scrolling: touch;
  }
}

/* Progress Classes */
.progress-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--progress-bg);
  transition: all 0.3s ease;
}

.progress-dot.active {
  background: var(--progress-fill);
  width: 42px;
  border-radius: 5px;
}