/* ═══════════════════════════════════════════════════
   BoatHub — Design System & Global Styles (index.css)
   ═══════════════════════════════════════════════════ */

/* ──────────── DESIGN TOKENS ──────────── */
:root {
  /* ── Color Palette (LIGHT MODE — Default) ── */
  --color-base:            #ffffff;
  --color-base-light:      #f8f9fa;
  --color-base-lighter:    #f1f3f5;
  --color-surface:         #ffffff;
  --color-surface-hover:   #f8f9fa;
  --color-surface-active:  #f1f3f5;

  --color-primary:         #0066FF;
  --color-primary-hover:   #0052cc;
  --color-primary-dark:    #004099;
  --color-primary-light:   rgba(0, 102, 255, 0.1);
  --color-primary-glow:    rgba(0, 102, 255, 0.2);

  --color-accent:          #FF5A5F;
  --color-accent-hover:    #e04e52;
  --color-accent-light:    rgba(255, 90, 95, 0.1);
  --color-accent-glow:     rgba(255, 90, 95, 0.2);

  --color-gold:            #FFB800;
  --color-gold-light:      rgba(255, 184, 0, 0.1);

  --color-success:         #00C48C;
  --color-success-light:   rgba(0, 196, 140, 0.1);
  --color-warning:         #FFB800;
  --color-error:           #FF5A5F;

  --color-text-primary:    #1a1a2e;
  --color-text-secondary:  #4a5568;
  --color-text-tertiary:   #718096;
  --color-text-muted:      #a0aec0;
  --color-text-inverse:    #ffffff;

  --color-border:          #e2e8f0;
  --color-border-hover:    #cbd5e0;
  --color-border-focus:    rgba(0, 102, 255, 0.5);
  --color-divider:         #edf2f7;

  --color-glass:           rgba(255, 255, 255, 0.85);
  --color-glass-border:    rgba(0, 0, 0, 0.06);
  --color-glass-hover:     rgba(255, 255, 255, 0.95);

  --color-overlay:         rgba(0, 0, 0, 0.4);

  /* ── Semantic shortcuts ── */
  --bg-body:     var(--color-base-light);
  --bg-card:     var(--color-surface);
  --bg-hover:    var(--color-surface-hover);
  --text-primary: var(--color-text-primary);
  --text-secondary: var(--color-text-secondary);
  --text-muted:  var(--color-text-muted);
  --primary:     var(--color-primary);
  --primary-dark: var(--color-primary-dark);
  --accent:      var(--color-accent);
  --border:      var(--color-border);

  /* ── Gradients ── */
  --gradient-primary:      linear-gradient(135deg, #0066FF 0%, #00AAFF 100%);
  --gradient-accent:       linear-gradient(135deg, #FF5A5F 0%, #FF8A5C 100%);
  --gradient-gold:         linear-gradient(135deg, #FFB800 0%, #FF8A00 100%);
  --gradient-hero:         linear-gradient(135deg, #0a1628 0%, #162a4a 50%, #0066FF 100%);
  --gradient-surface:      linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);

  /* ── Typography ── */
  --font-family:           'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs:          0.75rem;
  --font-size-sm:          0.8125rem;
  --font-size-base:        0.875rem;
  --font-size-md:          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:         3.5rem;

  --font-weight-light:     300;
  --font-weight-regular:   400;
  --font-weight-medium:    500;
  --font-weight-semibold:  600;
  --font-weight-bold:      700;
  --font-weight-extrabold: 800;
  --font-weight-black:     900;

  --line-height-tight:     1.2;
  --line-height-snug:      1.375;
  --line-height-normal:    1.5;
  --line-height-relaxed:   1.625;
  --letter-spacing-tight:  -0.02em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide:   0.02em;

  /* ── Spacing ── */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* ── Border Radius ── */
  --radius-xs:   4px;
  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   16px;
  --radius-xl:   20px;
  --radius-2xl:  24px;
  --radius-full: 9999px;

  /* ── Shadows (Light mode — softer) ── */
  --shadow-xs:      0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm:      0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-md:      0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg:      0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-xl:      0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-2xl:     0 24px 64px rgba(0, 0, 0, 0.15);
  --shadow-glow:    0 0 20px rgba(0, 102, 255, 0.15);
  --shadow-accent:  0 0 20px rgba(255, 90, 95, 0.15);
  --shadow-card:    0 2px 8px rgba(0, 0, 0, 0.06), 0 0 1px rgba(0, 0, 0, 0.08);
  --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.12), 0 0 1px rgba(0, 0, 0, 0.1);

  /* ── Transitions ── */
  --transition-fast:   150ms ease;
  --transition-base:   300ms ease;
  --transition-slow:   500ms ease;
  --transition-spring: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ── Z-Index ── */
  --z-dropdown:  100;
  --z-sticky:    200;
  --z-overlay:   300;
  --z-modal:     400;
  --z-toast:     500;
  --z-tooltip:   600;

  /* ── Layout ── */
  --navbar-height:   64px;
  --sidebar-width:   280px;
  --container-max:   1320px;
  --container-pad:   var(--space-5);
}

/* ──────────── DARK MODE ──────────── */
[data-theme="dark"] {
  --color-base:            #0a1628;
  --color-base-light:      #0f1f38;
  --color-base-lighter:    #162a4a;
  --color-surface:         #1a2940;
  --color-surface-hover:   #1f3350;
  --color-surface-active:  #243d5e;

  --color-text-primary:    #f0f4f8;
  --color-text-secondary:  #94a3b8;
  --color-text-tertiary:   #64748b;
  --color-text-muted:      #475569;
  --color-text-inverse:    #0a1628;

  --color-border:          rgba(255, 255, 255, 0.08);
  --color-border-hover:    rgba(255, 255, 255, 0.15);
  --color-divider:         rgba(255, 255, 255, 0.06);

  --color-glass:           rgba(15, 31, 56, 0.72);
  --color-glass-border:    rgba(255, 255, 255, 0.1);
  --color-glass-hover:     rgba(15, 31, 56, 0.85);

  --color-overlay:         rgba(5, 10, 20, 0.6);

  --bg-body:     var(--color-base);
  --bg-card:     var(--color-surface);
  --bg-hover:    var(--color-surface-hover);

  --shadow-xs:      0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm:      0 2px 4px rgba(0, 0, 0, 0.25);
  --shadow-md:      0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg:      0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-xl:      0 16px 48px rgba(0, 0, 0, 0.4);
  --shadow-2xl:     0 24px 64px rgba(0, 0, 0, 0.5);
  --shadow-card:    0 2px 8px rgba(0, 0, 0, 0.2), 0 0 1px rgba(255, 255, 255, 0.05);
  --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.35);
}


/* ──────────── CSS RESET ──────────── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--bg-body);
  min-height: 100vh;
  overflow-x: hidden;
}

img,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  outline: none;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
}


/* ──────────── BASE TYPOGRAPHY ──────────── */
h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-md); }
h6 { font-size: var(--font-size-base); }

p {
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

small {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.gradient-text {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}


/* ──────────── CONTAINER ──────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}


/* ──────────── UTILITY CLASSES ──────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.text-center  { text-align: center; }
.text-sm      { font-size: var(--font-size-sm); }
.text-xs      { font-size: var(--font-size-xs); }
.text-muted   { color: var(--color-text-tertiary); }
.text-accent  { color: var(--color-accent); }
.text-primary { color: var(--color-primary); }
.text-gold    { color: var(--color-gold); }

.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-1        { gap: var(--space-1); }
.gap-2        { gap: var(--space-2); }
.gap-3        { gap: var(--space-3); }
.gap-4        { gap: var(--space-4); }

.hidden       { display: none !important; }
.visible      { display: block !important; }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}


/* ──────────── SCROLLBAR ──────────── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-text-muted);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-tertiary);
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-text-muted) transparent;
}


/* ──────────── SELECTION ──────────── */
::selection {
  background: var(--color-primary);
  color: #fff;
}


/* ──────────── FOCUS ──────────── */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}


/* ──────────── KEYFRAME ANIMATIONS ──────────── */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

@keyframes slideInRight {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

@keyframes slideInUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.05);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(100%) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes toastOut {
  from {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateX(100%) scale(0.95);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 5px var(--color-primary-glow); }
  50%      { box-shadow: 0 0 20px var(--color-primary-glow), 0 0 40px rgba(0, 102, 255, 0.1); }
}


/* ──────────── PAGE SYSTEM ──────────── */
.page {
  display: none;
  min-height: calc(100vh - var(--navbar-height));
  animation: fadeIn 0.4s ease;
}

.page.active {
  display: block;
}


/* ──────────── NAVBAR ──────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  height: var(--navbar-height);
  background: var(--color-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--color-glass-border);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .navbar.scrolled {
  background: rgba(10, 22, 40, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* ── Dark Mode Toggle ── */
.btn-theme-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-theme-toggle:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border-hover);
}

.navbar-inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  height: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ── Logo ── */
.navbar-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.navbar-logo:hover {
  opacity: 0.85;
}

.logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
}

/* ── Navbar Search ── */
.navbar-search {
  flex: 1;
  max-width: 480px;
  position: relative;
  margin-inline: auto;
}

.navbar-search input {
  width: 100%;
  height: 40px;
  padding: 0 44px 0 var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  transition: all var(--transition-base);
}

.navbar-search input::placeholder {
  color: var(--color-text-muted);
}

.navbar-search input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  background: #fff;
}

[data-theme="dark"] .navbar-search input:focus {
  background: var(--color-base-lighter);
}

.search-btn {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  color: #fff;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.search-btn:hover {
  transform: translateY(-50%) scale(1.05);
  box-shadow: var(--shadow-glow);
}

.search-btn:active {
  transform: translateY(-50%) scale(0.95);
}

/* ── Navbar Actions ── */
.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.btn-create-listing {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--gradient-accent);
  color: #fff;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

.btn-create-listing:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-accent), var(--shadow-md);
}

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

.btn-create-listing svg {
  flex-shrink: 0;
}

.btn-auth {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

.btn-auth svg {
  flex-shrink: 0;
}


/* ──────────── TOAST NOTIFICATIONS ──────────── */
.toast-container {
  position: fixed;
  top: calc(var(--navbar-height) + var(--space-4));
  right: var(--space-4);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  background: var(--color-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: toastIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  max-width: 380px;
  min-width: 280px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.toast.toast-exit {
  animation: toastOut 0.3s ease forwards;
}

.toast-icon {
  font-size: var(--font-size-lg);
  flex-shrink: 0;
  line-height: 1;
}

.toast-message {
  flex: 1;
}

.toast.toast-success {
  border-left: 3px solid var(--color-success);
}

.toast.toast-error {
  border-left: 3px solid var(--color-error);
}

.toast.toast-warning {
  border-left: 3px solid var(--color-warning);
}

.toast.toast-info {
  border-left: 3px solid var(--color-primary);
}


/* ──────────── MOBILE RESPONSIVE — NAVBAR ──────────── */
@media (max-width: 768px) {
  :root {
    --navbar-height: 56px;
    --container-pad: var(--space-4);
  }

  .navbar-search {
    display: none;
  }

  .btn-create-listing span {
    display: none;
  }

  .btn-create-listing {
    width: 36px;
    height: 36px;
    padding: 0;
    justify-content: center;
    border-radius: var(--radius-full);
  }

  .btn-auth span {
    display: none;
  }

  .btn-auth {
    width: 36px;
    height: 36px;
    padding: 0;
    justify-content: center;
    border-radius: var(--radius-full);
  }

  .logo-text {
    font-size: var(--font-size-lg);
  }

  .toast-container {
    right: var(--space-3);
    left: var(--space-3);
  }

  .toast {
    max-width: 100%;
    min-width: auto;
  }
}


/* ═══════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════ */

.site-footer {
  background: #0a1628;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 2.5rem 0 1.5rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 1.25rem;
}

.footer-logo {
  height: 36px;
  margin-bottom: 0.4rem;
}

.footer-tagline {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  margin: 0;
}

.footer-email {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.footer-email:hover {
  color: #FF5A5F;
}

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

.footer-copyright {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
  margin: 0;
}

.footer-admin-link {
  color: inherit;
  text-decoration: none;
}

@media (max-width: 640px) {
  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
}