/* /bte35-routine-project/styles.css */

/* ============================
   CSS VARIABLES (THEMING)
   ============================ */
:root {
  /* Dark Mode (Default) */
  --bg-body: #080c14;
  --bg-panel: #111827;
  --bg-header: #1e293b;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --border: #1e293b;
  --card-bg: rgba(30, 41, 59, 0.4);
  --card-border: rgba(255, 255, 255, 0.08);
  --hover-bg: #172033;
  --th-bg: #0f172a;
  --list-item-bg: #0f172a;
  --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);

  /* Accents */
  --accent-primary: #0ea5e9; /* Sky Blue */
  --accent-secondary: #6366f1; /* Indigo */
  --accent-success: #22c55e; /* Green */
  --accent-danger: #f43f5e; /* Rose */
}

/* Light Mode Overrides */
[data-theme="light"] {
  --bg-body: #f8fafc;
  --bg-panel: #ffffff;
  --bg-header: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --card-bg: #ffffff;
  --card-border: #cbd5e1;
  --hover-bg: #f1f5f9;
  --th-bg: #f1f5f9;
  --list-item-bg: #ffffff;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: "Inter", sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  padding: 20px;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* --- Header & Switcher --- */
header {
  text-align: center;
  margin-bottom: 40px;
  padding: 40px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
  border-radius: 16px;
  box-shadow: var(--shadow);
  position: relative;
  transition: background 0.3s ease;
}

.theme-switch-wrapper {
  position: absolute;
  top: 20px;
  right: 20px;
}

#theme-toggle {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}

#theme-toggle:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

h1 {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 900;
  letter-spacing: -1px;
  background: linear-gradient(
    to right,
    var(--accent-primary),
    var(--accent-secondary)
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
  line-height: 1.2;
}

h2 {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  color: var(--text-main);
  font-weight: 700;
  margin-bottom: 5px;
}

.subtitle {
  color: var(--accent-primary);
  font-size: 1rem;
  margin-top: 10px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* =========================================
     DESKTOP VIEW (Table)
     Visible > 900px
     ========================================= */
.desktop-view {
  display: block;
  width: 100%;
  overflow-x: auto;
  border-radius: 16px;
  box-shadow: var(--shadow);
  margin-bottom: 80px;
  background-color: var(--bg-panel);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  min-width: 1600px;
}

th {
  background-color: var(--th-bg);
  color: var(--accent-primary);
  padding: 20px;
  text-align: left;
  font-weight: 800;
  font-size: 1rem;
  text-transform: uppercase;
  border-bottom: 3px solid var(--border);
  border-right: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  transition: background 0.3s;
}

td {
  padding: 15px;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  background-color: var(--bg-panel);
  height: 160px;
  transition: background 0.3s ease;
}

td:hover {
  background-color: var(--hover-bg);
}

td.day-col {
  background-color: var(--th-bg);
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.5rem;
  text-align: center;
  vertical-align: middle;
  width: 100px;
  border-right: 3px solid var(--border);
}

/* Break Column (Desktop) */
th.break-header {
  width: 60px;
  text-align: center;
  padding: 0;
  vertical-align: middle;
  font-size: 0.8rem;
  color: var(--text-muted);
}

td.break-cell {
  background-color: var(--th-bg);
  padding: 0;
  width: 60px;
  vertical-align: middle;
  text-align: center;
}

.break-wrapper {
  height: 100%;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.break-text {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  white-space: nowrap;
  opacity: 0.5;
}

/* =========================================
     MOBILE VIEW (Agenda Cards)
     Visible < 900px
     ========================================= */
.mobile-view {
  display: none;
  flex-direction: column;
  gap: 30px;
  max-width: 600px;
  margin: 0 auto 60px auto;
}

.day-container {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.day-header {
  background: var(--th-bg);
  padding: 15px 20px;
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--accent-primary);
  border-bottom: 2px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.day-header.off-day {
  color: var(--accent-success);
}

.day-body {
  padding: 15px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.mobile-class-card {
  background: var(--card-bg);
  border-radius: 8px;
  padding: 15px;
  border: 1px solid var(--card-border);
  border-left: 4px solid var(--accent-secondary);
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.mobile-time {
  font-family: monospace;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 5px;
  display: block;
  font-weight: 700;
}

.mobile-break {
  text-align: center;
  padding: 10px;
  background: rgba(0, 0, 0, 0.05);
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  border: 1px dashed var(--border);
}

/* =========================================
     SHARED CLASS STYLES (Cards)
     ========================================= */
.class-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 12px;
  position: relative;
  backdrop-filter: blur(5px);
  margin-bottom: 10px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.class-card:hover,
.mobile-class-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  z-index: 5;
}

/* Types */
.lab-a1 {
  border-left: 4px solid var(--accent-danger);
}
.lab-a2 {
  border-left: 4px solid var(--accent-success);
}
.theory {
  border-left: 4px solid var(--accent-secondary);
}

/* Badges */
.group-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 3px 6px;
  border-radius: 4px;
  margin-bottom: 5px;
  text-transform: uppercase;
}
.bg-a1 {
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-danger);
  border: 1px solid rgba(244, 63, 94, 0.2);
}
.bg-a2 {
  background: rgba(34, 197, 94, 0.15);
  color: var(--accent-success);
  border: 1px solid rgba(34, 197, 94, 0.2);
}
.bg-all {
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent-secondary);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.course-code {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
  display: block;
}

.course-title {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 500;
  line-height: 1.3;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  padding-top: 8px;
}

.room {
  font-family: monospace;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-primary);
  background: rgba(14, 165, 233, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

.faculty {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  opacity: 0.8;
}

.weekend-banner {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-success);
  letter-spacing: 2px;
  text-transform: uppercase;
  text-align: center;
  padding: 20px;
}

.mobile-banner {
  font-size: 1rem;
}

/* =========================================
     FACULTY DIRECTORY (Grid)
     Updated Styles for Full Details
     ========================================= */
.course-list-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  background: var(--bg-panel);
  border-radius: 16px;
  padding: 30px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.section-title {
  font-size: 1.8rem;
  color: var(--accent-primary);
  margin-bottom: 30px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--border);
  font-weight: 800;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.list-item {
  background: var(--list-item-bg);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.list-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
}

.type-theory::before {
  background: var(--accent-secondary);
}
.type-lab::before {
  background: var(--accent-danger);
}
.type-mixed::before {
  background: var(--accent-success);
}

.list-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.15);
  border-color: var(--accent-primary);
}

.li-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.li-code {
  color: var(--text-main);
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 1px;
}

.li-type {
  font-size: 0.7rem;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(125, 125, 125, 0.1);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.li-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 10px;
}

.li-course-list {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 15px;
  flex-grow: 1; /* Pushes contact to bottom */
  line-height: 1.6;
}

.badge-course {
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  color: var(--text-main);
  font-weight: 600;
  margin-right: 5px;
}

.li-contact {
  border-top: 1px solid var(--border);
  padding-top: 10px;
  text-align: right;
}

.contact-link {
  color: var(--accent-success);
  text-decoration: none;
  font-weight: 700;
  font-family: monospace;
  font-size: 0.95rem;
  transition: opacity 0.2s;
  display: inline-block;
  padding: 5px 10px;
  border-radius: 6px;
  background: rgba(34, 197, 94, 0.1);
}

.contact-link:hover {
  background: rgba(34, 197, 94, 0.2);
}

footer {
  text-align: center;
  margin-top: 60px;
  padding: 30px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
}

/* =========================================
     BREAKPOINT LOGIC
     ========================================= */
@media (max-width: 900px) {
  .desktop-view {
    display: none;
  }
  .mobile-view {
    display: flex;
  }

  body {
    padding: 10px;
  }

  header {
    padding: 20px 15px 30px 15px;
    margin-bottom: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .theme-switch-wrapper {
    position: static;
    width: 100%;
    display: flex;
    justify-content: flex-end;
    margin-bottom: 10px;
  }

  h1,
  h2,
  .subtitle {
    width: 100%;
    text-align: center;
  }

  h1 {
    font-size: 1.8rem;
  }

  .course-list-wrapper {
    padding: 20px;
  }
}
/* =========================================
     FOOTER & CREDITS
     ========================================= */
.site-footer {
  margin-top: 60px;
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
  padding: 40px 20px;
  text-align: center;
}

.footer-heading {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 25px;
  font-weight: 700;
}

.creators-grid {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  max-width: 800px;
  margin: 0 auto 30px auto;
}

.creator-card {
  background: var(--bg-body); /* Slightly darker than footer */
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: 12px;
  flex: 1;
  min-width: 280px;
  transition: transform 0.2s ease;
}

.creator-card:hover {
  transform: translateY(-3px);
  border-color: var(
    --accent-success
  ); /* Green highlight for WhatsApp context */
}

.creator-role {
  font-size: 0.75rem;
  color: var(--accent-primary);
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 5px;
}

.creator-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 15px;
}

.whatsapp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: rgba(37, 211, 102, 0.1); /* WhatsApp Green Tint */
  color: #25d366; /* WhatsApp Green */
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.9rem;
  border: 1px solid rgba(37, 211, 102, 0.2);
  transition: all 0.2s ease;
  width: 100%;
}

.whatsapp-btn:hover {
  background-color: #25d366;
  color: white;
}

.footer-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.6;
}