/* =============================
   PROFESSIONAL COLOR SYSTEM - Teal & Gold
   Teal = Trust & Action | Gold = Premium & Identity
============================= */

/* 1. Base Brand Tokens */
:root {
  /* Brand core */
  --color-brand-gold: #D4AF37;
  --color-brand-gold-dark: #B38F1F;
  --color-brand-gold-soft: #F6EAC3;

  --color-brand-teal: #1E7F7F;
  --color-brand-teal-dark: #155C5C;
  --color-brand-teal-soft: #E0F3F3;

  /* Neutrals */
  --color-neutral-900: #111111;
  --color-neutral-800: #1F1F1F;
  --color-neutral-700: #3A3A3A;
  --color-neutral-600: #555555;
  --color-neutral-500: #7A7A7A;
  --color-neutral-400: #A3A3A3;
  --color-neutral-300: #D0D0D0;
  --color-neutral-200: #E5E5E5;
  --color-neutral-100: #F5F5F7;
  --color-neutral-50: #FAFAFB;

  /* Brand black & whites */
  --color-black-deep: #1A1A1A;
  --color-white: #FFFFFF;

  /* Semantic / states */
  --color-success: #15803D;
  --color-success-soft: #DCFCE7;

  --color-warning: #D97706;
  --color-warning-soft: #FEF3C7;

  --color-error: #B91C1C;
  --border-subtle: var(--color-neutral-200);
  --border-strong: var(--color-neutral-300);

  /* Shadows */
  --shadow-soft: 0 8px 20px rgba(0, 0, 0, 0.06);
  --shadow-strong: 0 18px 45px rgba(0, 0, 0, 0.12);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
}

/* 3. Button Tokens */
:root {
  /* Primary button (main actions) */
  --btn-primary-bg: var(--color-brand-teal);
  --btn-primary-bg-hover: var(--color-brand-teal-dark);
  --btn-primary-text: var(--color-white);
  --btn-primary-border: transparent;

  /* Secondary button (outline) */
  --btn-secondary-bg: transparent;
  --btn-secondary-bg-hover: var(--color-neutral-100);
  --btn-secondary-text: var(--color-brand-teal);
  --btn-secondary-border: var(--color-brand-teal);

  /* Premium button (limited use!) */
  --btn-premium-bg: var(--color-brand-gold);
  --btn-premium-bg-hover: var(--color-brand-gold-dark);
  --btn-premium-text: var(--color-black-deep);
  --btn-premium-border: transparent;

  /* Disabled */
  --btn-disabled-bg: var(--color-neutral-200);
  --btn-disabled-text: var(--color-neutral-500);
  --btn-disabled-border: var(--color-neutral-200);
}

/* 4. Card & Accent Tokens */
:root {
  /* Cards */
  --card-bg: var(--color-white);
  --card-bg-muted: var(--color-neutral-100);
  --card-border: var(--border-subtle);
  --card-shadow: var(--shadow-soft);

  /* Accent highlights */
  --accent-gold: var(--color-brand-gold);
  --accent-gold-soft-bg: var(--color-brand-gold-soft);

  --accent-teal: var(--color-brand-teal);
  --accent-teal-soft-bg: var(--color-brand-teal-soft);
}

/* 5. Alert & Badge Tokens */
:root {
  /* Success */
  --alert-success-bg: var(--color-success-soft);
  --alert-success-border: var(--color-success);
  --alert-success-text: var(--color-success);

  /* Error */
  --alert-error-bg: var(--color-error-soft);
  --alert-error-border: var(--color-error);
  --alert-error-text: var(--color-error);

  /* Warning */
  --alert-warning-bg: var(--color-warning-soft);
  --alert-warning-border: var(--color-warning);
  --alert-warning-text: var(--color-warning);

  /* Info */
  --alert-info-bg: var(--color-info-soft);
  --alert-info-border: var(--color-info);
  --alert-info-text: var(--color-info);
}

/* Effects */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
}

/* =============================
   HEADER & NAVIGATION
============================= */
.site-header {
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

body.dark-mode .site-header {
  background: rgba(17, 17, 17, 0.98);
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 2rem;
}
.auth-buttons {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  transition: var(--transition);
  flex-shrink: 0;
}

.brand-link:hover {
  opacity: 0.9;
}

.brand-logo {
  width: 60px;
  height: 60px;
  object-fit: contain;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
}

.theme-toggle {
  background: var(--bg-surface-muted);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.2rem;
  flex-shrink: 0;
  order: -1;
}

.theme-toggle:hover {
  background: var(--accent-teal);
  border-color: var(--accent-teal);
  transform: scale(1.05);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  order: 3;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--text-main);
  border-radius: 3px;
  transition: var(--transition);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
  margin: 0;
  flex: 1;
  justify-content: center;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--card-border);
  transition: var(--transition);
}
.nav-link:hover {
  color: var(--accent-teal);
}
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-teal);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-main);
}

.feature-card p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

/* =============================
   FOOTER
============================= */
.site-footer {
  background: var(--color-neutral-900);
  color: var(--text-on-dark);
  padding: 4rem 0 2rem;
  margin-top: 5rem;
  border-top: 3px solid var(--accent-gold);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: var(--accent-gold);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-col p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 0.75rem;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.95rem;
}

.footer-col ul li a:hover {
  color: var(--accent-gold);
  padding-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  margin: 0.5rem 0;
}

@media (max-width: 968px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* =============================
   FORM ELEMENTS
============================= */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--bg-surface);
  color: var(--text-main);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-teal);
  box-shadow: 0 0 0 3px rgba(30, 127, 127, 0.1);
}

/* =============================
   ALERTS
============================= */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  border: 2px solid;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.alert-success {
  background: var(--alert-success-bg);
  border-color: var(--alert-success-border);
  color: var(--alert-success-text);
}

.alert-error,
.alert-danger {
  background: var(--alert-error-bg);
  border-color: var(--alert-error-border);
  color: var(--alert-error-text);
}

.alert-warning {
  background: var(--alert-warning-bg);
  border-color: var(--alert-warning-border);
  color: var(--alert-warning-text);
}

.alert-info {
  background: var(--alert-info-bg);
  border-color: var(--alert-info-border);
  color: var(--alert-info-text);
}

/* =============================
   UTILITIES
============================= */
.text-center {
  text-align: center;
}

.guest-only {
  display: inline-flex !important;
}

.user-only {
  display: none !important;
}

body.logged-in .guest-only {
  display: none !important;
}

body.logged-in .user-only {
  display: inline-flex !important;
}