/* ============================================================================
 * SNLab Code Copilot - Firebase Frontend Styles
 *
 * Purpose: Styling for Firebase-hosted authentication and tier system
 *
 * Author: iDevOpsLLC
 * Date: 2025-11-17
 * ============================================================================ */

/* === COLOR SCHEMA (from PLANNING.md) === */
:root {
  --bg-primary: var(--bg, #050505);
  --bg-secondary: var(--surface, #111112);
  --text-primary: var(--ink, #F4F4F5);
  --text-secondary: var(--ink-3, #7F8087);
  --border-color: var(--line, #26272B);
  --accent-color: var(--accent, #75DBD3);
  --error-color: var(--danger, #FF8A8A);
  --button-bg: var(--line, #26272B);
  --button-hover: #505050;
  --success-color: var(--ok, #5FD68A);
  --warning-color: var(--warn, #E8B366);
}

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

body {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* === LOGIN / SIGNUP CONTAINER === */
.login-container {
  max-width: 450px;
  margin: 80px auto;
  padding: 40px;
  background: var(--bg-secondary);
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.login-container h1 {
  margin-bottom: 30px;
  color: var(--text-primary);
  text-align: center;
  font-size: 28px;
  font-weight: 600;
}

.login-container form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.login-container input,
.login-container select {
  padding: 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 15px;
  color: var(--text-primary);
  transition: border-color 0.3s, background 0.3s;
}

.login-container input:focus,
.login-container select:focus {
  outline: none;
  border-color: var(--accent-color);
  background: var(--bg-secondary);
}

.login-container button {
  padding: 14px 24px;
  background: var(--accent-color);
  color: #ffffff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: background 0.3s, transform 0.1s;
}

.login-container button:hover {
  background: #63C9C1;
  transform: translateY(-1px);
}

.login-container button:active {
  transform: translateY(0);
}

.login-container p {
  text-align: center;
  margin-top: 20px;
  color: var(--text-secondary);
}

.login-container a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.3s;
}

.login-container a:hover {
  color: #7eb7e8;
  text-decoration: underline;
}

.error {
  color: var(--error-color);
  font-size: 14px;
  margin-top: 10px;
  padding: 10px;
  background: rgba(244, 135, 113, 0.1);
  border: 1px solid var(--error-color);
  border-radius: 4px;
  text-align: center;
}

.success {
  color: var(--success-color);
  font-size: 14px;
  margin-top: 10px;
  padding: 10px;
  background: rgba(95, 214, 138, 0.1);
  border: 1px solid var(--success-color);
  border-radius: 4px;
  text-align: center;
}

/* === DASHBOARD LAYOUT === */
.dashboard {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

header {
  background: var(--bg-secondary);
  padding: 24px;
  border-radius: 8px;
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

header h1 {
  color: var(--text-primary);
  font-size: 24px;
  font-weight: 600;
}

.user-info {
  display: flex;
  gap: 16px;
  align-items: center;
}

.user-info span {
  color: var(--text-secondary);
  font-size: 14px;
}

.tier-badge {
  padding: 6px 16px;
  background: var(--accent-color);
  color: #ffffff;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

header button {
  padding: 10px 20px;
  background: var(--button-bg);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.3s;
}

header button:hover {
  background: var(--button-hover);
}

/* === NAVIGATION MENU === */
nav {
  background: var(--bg-secondary);
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 24px;
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.nav-menu {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--button-bg);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  transition: all 0.3s;
  cursor: pointer;
}

.nav-item:hover {
  background: var(--button-hover);
  border-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(117, 219, 211, 0.2);
}

.nav-item.active {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: #ffffff;
}

.nav-item.locked {
  background: var(--bg-primary);
  color: var(--text-secondary);
  cursor: not-allowed;
  opacity: 0.6;
}

.nav-item.locked:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--border-color);
}

.nav-icon {
  font-size: 20px;
}

.nav-label {
  flex: 1;
  font-weight: 500;
  font-size: 14px;
}

.lock-icon {
  font-size: 16px;
  opacity: 0.7;
}

/* === MAIN CONTENT AREA === */
main {
  background: var(--bg-secondary);
  padding: 32px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  min-height: 400px;
}

main h2 {
  color: var(--text-primary);
  margin-bottom: 20px;
  font-size: 22px;
  font-weight: 600;
}

main p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

/* === UPGRADE MODAL === */
.upgrade-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.upgrade-prompt {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 40px;
  max-width: 500px;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.upgrade-prompt h3 {
  color: var(--text-primary);
  margin-bottom: 16px;
  font-size: 24px;
}

.upgrade-prompt p {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.upgrade-btn {
  padding: 14px 28px;
  background: var(--accent-color);
  color: #ffffff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: background 0.3s;
}

.upgrade-btn:hover {
  background: #63C9C1;
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 768px) {
  .dashboard {
    padding: 12px;
  }

  header {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .nav-menu {
    grid-template-columns: 1fr;
  }

  .login-container {
    margin: 40px 20px;
    padding: 30px 20px;
  }
}

/* === UTILITY CLASSES === */
.hidden {
  display: none !important;
}

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

.mt-20 {
  margin-top: 20px;
}

.mb-20 {
  margin-bottom: 20px;
}

/* === LOADING SPINNER === */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--accent-color);
  animation: spin 1s linear infinite;
}

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