/* =====================================================
   style.css — ShiftTrack
   ICT171 Cloud Server Project — Ashfaqul Haque Bhuiyan
   35720354 — Murdoch University 2026 S1
   ===================================================== */

/* ---- CSS Custom Properties ---- */
:root {
  --bg:          #0c0e14;
  --bg-card:     #13161f;
  --bg-card-2:   #1a1e2b;
  --border:      #252a3a;
  --accent:      #00e5a0;
  --accent-2:    #3b82f6;
  --danger:      #f43f5e;
  --text:        #e2e8f0;
  --text-muted:  #64748b;
  --text-dim:    #94a3b8;
  --mono:        'Space Mono', monospace;
  --sans:        'DM Sans', sans-serif;
  --radius:      12px;
  --radius-sm:   8px;
  --transition:  0.2s ease;
  --shadow:      0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:   0 8px 40px rgba(0,0,0,0.6);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; transition: opacity var(--transition); }
a:hover { opacity: 0.75; }

code {
  font-family: var(--mono);
  background: var(--bg-card-2);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85em;
  color: var(--accent);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Navbar ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: rgba(12, 14, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}

.brand-icon { font-size: 1.4rem; }
.brand-name { color: var(--accent); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  color: var(--text-dim);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--text); }

.nav-report-btn {
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  padding: 6px 16px;
  border-radius: 20px;
  color: var(--accent) !important;
  font-size: 0.85rem !important;
  font-family: var(--mono);
}

.nav-report-btn:hover { border-color: var(--accent); background: rgba(0,229,160,0.08) !important; }

/* ---- Hero ---- */
.hero {
  padding: 80px 40px 60px;
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.hero-inner { flex: 1; min-width: 280px; }

.hero-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-title .accent {
  color: var(--accent);
  font-family: var(--mono);
}

.hero-sub {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 480px;
  margin-bottom: 28px;
  line-height: 1.7;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge {
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 5px 12px;
  border-radius: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.hero-clock-display {
  font-family: var(--mono);
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  color: var(--accent);
  letter-spacing: 0.04em;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 32px;
  min-width: 220px;
  text-align: center;
  box-shadow: var(--shadow), 0 0 40px rgba(0,229,160,0.06);
}

/* ---- Sections ---- */
.section {
  padding: 72px 0;
  border-top: 1px solid var(--border);
}

.section-title {
  font-size: 1.7rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.section-sub {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 36px;
}

/* ---- Clock Card ---- */
.clock-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  max-width: 680px;
  box-shadow: var(--shadow);
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
}

.input-group label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-family: var(--mono);
}

.input-group input {
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.input-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,229,160,0.12);
}

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

/* ---- Date/Time Display ---- */
.datetime-display {
  display: flex;
  gap: 0;
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 28px;
}

.dt-block {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 12px;
  gap: 6px;
}

.dt-divider {
  width: 1px;
  background: var(--border);
  align-self: stretch;
}

.dt-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.dt-value {
  font-size: 0.95rem;
  color: var(--text);
  font-weight: 500;
}

.dt-value.mono { font-family: var(--mono); }

.status-indicator { color: var(--text-muted); }
.status-indicator.clocked-in { color: var(--accent); }

/* ---- Buttons ---- */
.btn-row {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.btn {
  flex: 1;
  padding: 14px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all var(--transition);
}

.btn-in {
  background: var(--accent);
  color: #0c0e14;
}

.btn-in:hover:not(:disabled) {
  background: #00ffb3;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0,229,160,0.35);
}

.btn-out {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
}

.btn-out:hover:not(:disabled) {
  background: rgba(244,63,94,0.1);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(244,63,94,0.2);
}

.btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-icon { font-size: 0.8rem; }

/* ---- Active Timer ---- */
.active-timer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0,229,160,0.06);
  border: 1px solid rgba(0,229,160,0.2);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  margin-bottom: 12px;
}

.timer-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  font-family: var(--mono);
}

.timer-value {
  font-size: 1.4rem;
  color: var(--accent);
  font-weight: 700;
}

/* ---- Message Area ---- */
.message-area {
  min-height: 24px;
  font-size: 0.88rem;
  color: var(--accent);
  font-family: var(--mono);
  padding: 4px 0;
}

.message-area.error { color: var(--danger); }

/* ---- History Section ---- */
.history-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 0;
}

.history-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 4px;
}

.total-hours-badge {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.88rem;
  font-family: var(--mono);
  color: var(--text-dim);
}

.total-hours-badge strong { color: var(--accent); }

.btn-clear {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.82rem;
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--mono);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-clear:hover {
  border-color: var(--danger);
  color: var(--danger);
}

/* ---- Table ---- */
.table-wrap {
  margin-top: 28px;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.shift-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.shift-table thead {
  background: var(--bg-card-2);
  border-bottom: 1px solid var(--border);
}

.shift-table th {
  text-align: left;
  padding: 14px 18px;
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  white-space: nowrap;
}

.shift-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
  white-space: nowrap;
}

.shift-table tbody tr:last-child td { border-bottom: none; }

.shift-table tbody tr {
  background: var(--bg-card);
  transition: background var(--transition);
}

.shift-table tbody tr:hover { background: var(--bg-card-2); }

.duration-cell { font-family: var(--mono); color: var(--accent); }

.worker-cell { color: var(--text); font-weight: 500; }

.btn-delete {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 4px;
  font-family: var(--mono);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-delete:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.empty-state {
  display: none;
  padding: 48px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  background: var(--bg-card);
}

/* ---- About Section ---- */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(460px, 1fr));
  gap: 24px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.about-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
  font-family: var(--mono);
  letter-spacing: -0.01em;
}

.about-card p {
  color: var(--text-dim);
  font-size: 0.92rem;
  margin-bottom: 12px;
  line-height: 1.7;
}

.info-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.info-table td {
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
  vertical-align: top;
}
.info-table tr:last-child td { border-bottom: none; }
.info-table td:first-child { color: var(--text-muted); width: 40%; font-family: var(--mono); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.info-table strong { color: var(--text); }

.how-list {
  list-style: none;
  counter-reset: steps;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.how-list li {
  counter-increment: steps;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  color: var(--text-dim);
  font-size: 0.92rem;
}

.how-list li::before {
  content: counter(steps);
  min-width: 26px;
  height: 26px;
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.tech-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tech-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-dim);
  font-size: 0.92rem;
}

.tech-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.tech-dot.azure   { background: #0078d4; }
.tech-dot.ubuntu  { background: #e95420; }
.tech-dot.apache  { background: #d22128; }
.tech-dot.html    { background: #f0a500; }
.tech-dot.storage { background: var(--accent); }
.tech-dot.bash    { background: #89e051; }
.tech-dot.github  { background: #6e40c9; }

/* ---- Footer ---- */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  background: var(--bg-card);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--mono);
}

.footer-inner code { font-size: 0.82rem; }

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

.hero-inner { animation: fadeInUp 0.6s ease both; }
.hero-clock-display { animation: fadeInUp 0.6s 0.2s ease both; }
.clock-card { animation: fadeInUp 0.5s 0.1s ease both; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .navbar { padding: 14px 20px; }
  .nav-links { gap: 18px; }
  .hero { padding: 48px 20px 40px; flex-direction: column; }
  .hero-clock-display { width: 100%; }
  .clock-card { padding: 24px 20px; }
  .btn-row { flex-direction: column; }
  .about-grid { grid-template-columns: 1fr; }
  .history-header { flex-direction: column; }
  .footer-inner { flex-direction: column; text-align: center; }
}