/* =====================================================
   GLOBAL LAYOUT & THEME VARIABLES
===================================================== */

:root {
  /* Layout */
  --navbar-height: 72px;
  --radius: 0.75rem;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;

  /* Light theme */
  --header-bg: #0721e3;
  --bg-color: #ffffff;
  --text-color: #212529;
  --card-bg: #ffffff;
  --border-color: #dee2e6;
  --navbar-bg: #ffffff;
  --footer-bg: #121212;
  --footer-text: #cccccc;
  --muted-text: #6c757d;
}

/* =====================================================
   BASE
===================================================== */

html, body {
  height: 100%;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  padding-top: var(--navbar-height);
  transition:
    background-color var(--transition-base),
    color var(--transition-base);
}

/* Main content spacing */
.main-content {
  padding-top: 1.5rem;
  padding-bottom: 2rem;
}

/* =====================================================
   NAVBAR (Sticky + Smart)
===================================================== */


/* Facebook */
.list-inline-item.fa-facebook-f {
  color: #1877f2; /* Facebook blue */
  font-size: large;
}

/* Instagram (gradient look) */
.list-inline-item .fa-instagram {
  color: #e4405f; /* Instagram pink/red */
}

/* YouTube */
.list-inline-item .fa-youtube {
  color: #ff0000; /* YouTube red */
}

/* LinkedIn */
.list-inline-item .fa-linkedin-in {
  color: #0a66c2; /* LinkedIn blue */
}

/* Optional: hover effect */
.top-page .list-inline-item a:hover i {
  opacity: 0.8;
  transform: scale(1.1);
  transition: all 0.2s ease;
}


.navbar {
  background-color: var(--navbar-bg);
  transition:
    transform var(--transition-base),
    background-color var(--transition-base);
  box-shadow: 0 2px 4px rgba(0,0,0,.04);
}

/* Navbar hidden on scroll down */
.navbar.nav-hidden {
  transform: translateY(-100%);
}

/* Navbar links */
.navbar .nav-link {
  font-weight: 500;
  color: var(--text-color);
  transition: color var(--transition-fast);
}

.navbar .nav-link {
  position: relative;
  transition: color 0.3s ease;
}

.navbar .nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background-color: yellow;
  transition: width 0.3s ease;
}

.navbar .nav-link:hover {
  color: var(--header-bg);
}

.navbar .nav-link:hover::after {
  width: 100%; /* animated underline grows from left to right */
}


/* Toggler focus fix */
.navbar-toggler:focus {
  box-shadow: none;
}

/* =====================================================
   FOOTER
===================================================== */

.footer {
  background-color: var(--footer-bg);
  color: var(--footer-text);
  font-size: 0.9rem;
}

.footer a {
  color: var(--header-bg);
  font-size: 500;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.footer a:hover {
  opacity: 0.8;
  text-decoration: underline;
  color: yellow;
}

/* =====================================================
   CARDS / PANELS
===================================================== */

.card,
.auth-panel {
  background-color: var(--card-bg);
  border-color: var(--border-color);
  border-radius: var(--radius);
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.card:hover {
  box-shadow: 0 6px 16px rgba(0,0,0,.08);
}

/* =====================================================
   TEXT & UTILITIES
===================================================== */

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

hr {
  border-color: var(--border-color);
}

/* Focus accessibility */
:focus-visible {
  outline: 2px solid #0d6efd;
  outline-offset: 2px;
}

/* =====================================================
   DARK MODE
===================================================== */

body.dark {
  --bg-color: #121212;
  --text-color: #eaeaea;
  --card-bg: #1e1e1e;
  --border-color: #2f2f2f;
  --navbar-bg: #1a1a1a;
  --footer-bg: #0d0d0d;
  --footer-text: #bbbbbb;
  --muted-text: #9aa0a6;
}

/* Dark mode hover fixes */
body.dark .navbar .nav-link:hover {
  color: #66b2ff;
}

/* =====================================================
   SYSTEM PREFERS COLOR SCHEME (OPTIONNEL)
===================================================== */

@media (prefers-color-scheme: dark) {
  body:not(.dark):not(.light-forced) {
    --bg-color: #121212;
    --text-color: #eaeaea;
    --card-bg: #1e1e1e;
    --border-color: #2f2f2f;
    --navbar-bg: #1a1a1a;
    --footer-bg: #0d0d0d;
    --footer-text: #bbbbbb;
    --muted-text: #9aa0a6;
  }
}

/* =====================================================
   AUTH FORMS TOGGLE
===================================================== */

.form-block {
  display: none;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.form-block.active {
  display: block;
  opacity: 1;
}

/* =====================================================
   BUTTON ENHANCEMENTS
===================================================== */

.btn {
  border-radius: var(--radius);
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.btn:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,.12);
}