:root {
  --bg: #f3fbff;
  --bg-soft: #e8fbff;
  --card: #ffffff;
  --line: #c5e4f3;
  --text: #03045e;
  --muted: #4f6780;
  --aqua: #7fffd4;
  --blue: #00b4d8;
  --blue-dark: #11478f;
}

:root[data-theme='dark'] {
  --bg: #0b1827;
  --bg-soft: #14283d;
  --card: #152a41;
  --line: #2d4a67;
  --text: #e5f3ff;
  --muted: #9fb9d2;
  --aqua: #29cab4;
  --blue: #5198f2;
  --blue-dark: #80b5ff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: Manrope, Segoe UI, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, var(--bg-soft), var(--bg) 45%);
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5rem;
  font-family: Sora, Manrope, sans-serif;
}

p {
  margin: 0.2rem 0 0.7rem;
  color: var(--muted);
}

button,
input,
select,
textarea {
  font: inherit;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--card), transparent 8%);
  backdrop-filter: blur(8px);
}

.nav-inner {
  min-height: 64px;
  display: flex;
  gap: 0.9rem;
  align-items: center;
  justify-content: space-between;
}

.logo {
  border: 0;
  background: transparent;
  font-family: Sora, sans-serif;
  font-weight: 700;
  font-size: 1.12rem;
  cursor: pointer;
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
}

.logo-icon {
  width: 20px;
  height: 20px;
  margin-right: 3px;
  transform: translateY(2px);
}

.logo-dark {
  color: #005b8a;
}

.logo-light {
  color: #00b4d8;
}

:root[data-theme='dark'] .logo-dark {
  color: #8ecbff;
}

:root[data-theme='dark'] .logo-light {
  color: #7fffd4;
}

.top-nav {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.hamburger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  padding: 0.5rem;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}

.hamburger span {
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 99px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.top-nav button,
.site-footer button,
.theme-btn,
.cta,
.secondary,
.switch,
.day-pill,
.slot-pill,
.db-tabs button {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  border-radius: 10px;
  padding: 0.45rem 0.7rem;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.top-nav button:hover,
.site-footer button:hover,
.cta:hover,
.secondary:hover,
.switch:hover,
.day-pill:hover,
.slot-pill:hover,
.db-tabs button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(17, 71, 143, 0.14);
}

.top-nav .active,
.db-tabs .active,
.day-pill.active,
.slot-pill.picked {
  border-color: var(--aqua);
  box-shadow: inset 0 0 0 1px var(--aqua);
}

.hero {
  padding: 1.1rem 0 0.3rem;
}

.hero-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: 1.5fr 1fr;
}

.hero-copy,
.hero-card,
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: 0 12px 34px rgba(18, 60, 98, 0.09);
}

.kicker {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--blue-dark);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.28rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--card), var(--bg-soft) 28%);
  margin-bottom: 0.5rem;
}

.hero-brand-mark img {
  width: 22px;
  height: 22px;
}

.hero-brand-mark span {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--blue-dark);
}

.cta {
  background: linear-gradient(135deg, var(--aqua), #57dfff);
  border-color: transparent;
  color: #062b48;
  font-weight: 800;
}

.secondary {
  background: var(--bg-soft);
}

.block {
  margin-top: 1rem;
}

.section-head {
  margin-bottom: 0.7rem;
}

.step-grid,
.benefit-grid,
.dash-grid,
.library-grid,
.contact-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.step-card .index {
  display: inline-block;
  margin-bottom: 0.4rem;
  font-weight: 800;
  color: var(--blue-dark);
}

.qr-callout {
  background: linear-gradient(130deg, color-mix(in srgb, var(--card), var(--bg-soft) 40%), var(--card));
}

.quick-auth {
  text-align: center;
}

.calendar-shell {
  border: 1px dashed var(--line);
  border-radius: 14px;
  padding: 0.7rem;
}

.day-grid,
.slot-grid {
  display: grid;
  gap: 0.45rem;
}

.day-grid {
  grid-template-columns: repeat(auto-fit, minmax(88px, 1fr));
}

.slot-grid {
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
}

.slot-pill.locked {
  opacity: 0.52;
}

textarea,
input,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--text);
  padding: 0.6rem;
}

textarea {
  min-height: 94px;
  resize: vertical;
}

.list-col {
  display: grid;
  gap: 0.6rem;
}

.status-card,
.library-tools,
.library-card {
  border-radius: 12px;
}

.status-card {
  border: 1px solid var(--line);
  padding: 0.7rem;
}

.hint {
  background: color-mix(in srgb, var(--aqua), transparent 78%);
  border: 1px solid color-mix(in srgb, var(--aqua), transparent 45%);
  border-radius: 10px;
  padding: 0.45rem 0.6rem;
}

.library-tools {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr auto;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}

.tag {
  display: inline-block;
  background: color-mix(in srgb, var(--blue), transparent 86%);
  border: 1px solid color-mix(in srgb, var(--blue), transparent 56%);
  border-radius: 999px;
  padding: 0.25rem 0.55rem;
  font-size: 0.8rem;
}

.article-row {
  margin-top: 0.55rem;
}

.article-row p {
  margin-top: 0.2rem;
}

.source {
  margin-top: 0;
  font-size: 0.86rem;
}

.bento-card {
  display: grid;
  gap: 0.55rem;
}

.bento-grid {
  display: grid;
  gap: 0.5rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.bento-item {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--card), var(--bg-soft) 35%);
  border-radius: 10px;
  padding: 0.55rem 0.6rem;
}

.bento-item strong {
  font-size: 0.83rem;
  color: var(--blue-dark);
}

.bento-item p {
  margin: 0.3rem 0 0;
  font-size: 0.9rem;
  line-height: 1.4;
}

.bento-overview {
  grid-column: span 2;
}

.bento-red-flag {
  grid-column: span 2;
  border-color: color-mix(in srgb, #ff6b6b, var(--line) 55%);
  background: color-mix(in srgb, #ff9a9a, var(--card) 86%);
}

.source-row {
  display: flex;
  gap: 0.4rem;
  align-items: baseline;
}

.db-tabs {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 0.55rem;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 0.45rem;
}

.auth-card {
  max-width: 440px;
  margin: 0 auto;
  display: grid;
  gap: 0.55rem;
}

.switch {
  background: transparent;
}

.site-footer {
  margin-top: 1.5rem;
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--card), transparent 8%);
}

.footer-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  flex-wrap: wrap;
}

@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .library-tools {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .bento-grid {
    grid-template-columns: 1fr;
  }

  .bento-overview,
  .bento-red-flag {
    grid-column: span 1;
  }
}

@media (max-width: 640px) {
  .nav-inner {
    align-items: center;
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
    flex-wrap: wrap;
  }

  .hamburger {
    display: inline-flex;
  }

  .top-nav {
    display: none;
    width: 100%;
    margin-top: 0.45rem;
    padding-top: 0.45rem;
    border-top: 1px solid var(--line);
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .top-nav.open {
    display: grid;
  }

  .top-nav button {
    width: 100%;
  }
}


/* Lively Card Architecture */
.slot-card-grid {
  display: grid;
  gap: 0.85rem;
  margin-top: 0.8rem;
  grid-template-columns: 1fr;
}

.slot-card,
.library-card {
  position: relative;
  text-align: left;
  border: 0;
  padding: 0.95rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 15px -3px rgba(0, 180, 216, 0.1), 0 4px 6px -2px rgba(0, 180, 216, 0.05);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  overflow: hidden;
}

.slot-card:hover,
.library-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 22px -3px rgba(0, 180, 216, 0.15), 0 6px 9px -2px rgba(0, 180, 216, 0.075);
}

.slot-gradient-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #0077b6, #7fffd4);
}

.slot-card.available {
  background: color-mix(in srgb, #7fffd4, #ffffff 78%);
}

.slot-card.booked {
  filter: grayscale(0.95);
  opacity: 0.62;
}

.slot-card .slot-time {
  display: block;
  margin-top: 0.45rem;
  font-weight: 800;
  color: #03045e;
}

.slot-card .slot-state {
  display: block;
  margin-top: 0.22rem;
  color: #0077b6;
  font-size: 0.9rem;
}

.pulse-dot {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #2ecc71;
  box-shadow: 0 0 0 rgba(46, 204, 113, 0.5);
  animation: pulse-available 1.8s infinite;
}

@keyframes pulse-available {
  0% {
    box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.5);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(46, 204, 113, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(46, 204, 113, 0);
  }
}

.bento-layout {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: 1fr;
}

.library-card.expanded {
  grid-column: span 1;
}

.library-head {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 0.65rem;
  align-items: start;
  margin-top: 0.2rem;
}

.lib-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, #00b4d8, #ffffff 80%);
  font-size: 1.2rem;
}

.library-card h3 {
  color: #0077b6;
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

.snippet-2 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  line-height: 1.45;
  min-height: 2.8em;
}

.lib-footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.3rem;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.pill {
  display: inline-block;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, #0077b6, #ffffff 50%);
  background: color-mix(in srgb, #00b4d8, #ffffff 86%);
  color: #03045e;
  font-size: 0.76rem;
  font-weight: 700;
}

.read-more {
  border: 1px solid #00b4d8;
  border-radius: 10px;
  padding: 0.35rem 0.7rem;
  background: color-mix(in srgb, #7fffd4, #ffffff 76%);
  color: #03045e;
  font-weight: 700;
  box-shadow: 0 0 0 rgba(0, 180, 216, 0);
}

.read-more:hover {
  box-shadow: 0 0 14px rgba(0, 180, 216, 0.48);
}

@media (min-width: 760px) {
  .slot-card-grid,
  .bento-layout {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .library-card.expanded {
    grid-column: span 2;
  }
}

@media (min-width: 1180px) {
  .slot-card-grid,
  .bento-layout {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .library-card.expanded {
    grid-column: span 2;
  }
}

/* Dark Mode Optimization Pass */
:root {
  --glass: rgba(255, 255, 255, 0.8);
  --glass-soft: rgba(255, 255, 255, 0.72);
  --card-shadow: 0 10px 15px -3px rgba(0, 180, 216, 0.1), 0 4px 6px -2px rgba(0, 180, 216, 0.05);
  --card-shadow-hover: 0 15px 22px -3px rgba(0, 180, 216, 0.15), 0 6px 9px -2px rgba(0, 180, 216, 0.075);
}

:root[data-theme='dark'] {
  --glass: rgba(20, 39, 60, 0.82);
  --glass-soft: rgba(20, 39, 60, 0.72);
  --card-shadow: 0 10px 16px -4px rgba(2, 12, 27, 0.7), 0 3px 8px -2px rgba(3, 5, 18, 0.55);
  --card-shadow-hover: 0 18px 26px -5px rgba(2, 12, 27, 0.82), 0 6px 14px -3px rgba(3, 5, 18, 0.7);
}

html,
body {
  color-scheme: light dark;
  transition: background-color 220ms ease, color 220ms ease;
}

.site-header {
  background: color-mix(in srgb, var(--card), transparent 12%);
}

.slot-card,
.library-card {
  background: var(--glass);
  box-shadow: var(--card-shadow);
}

.slot-card:hover,
.library-card:hover {
  box-shadow: var(--card-shadow-hover);
}

.slot-card.available {
  background: color-mix(in srgb, #7fffd4, var(--glass) 78%);
}

.slot-card .slot-time,
.pill,
.read-more {
  color: var(--text);
}

.slot-card .slot-state,
.library-card h3 {
  color: var(--blue-dark);
}

.lib-icon {
  background: color-mix(in srgb, var(--blue), var(--glass-soft) 78%);
}

.pill {
  border: 1px solid color-mix(in srgb, var(--blue-dark), var(--line) 50%);
  background: color-mix(in srgb, var(--blue), var(--glass-soft) 86%);
}

.read-more {
  border-color: var(--blue);
  background: color-mix(in srgb, var(--aqua), var(--glass-soft) 76%);
}

:root[data-theme='dark'] .hero-copy,
:root[data-theme='dark'] .hero-card,
:root[data-theme='dark'] .card {
  background: color-mix(in srgb, var(--card), #0d2035 22%);
}

:root[data-theme='dark'] input,
:root[data-theme='dark'] select,
:root[data-theme='dark'] textarea,
:root[data-theme='dark'] .top-nav button,
:root[data-theme='dark'] .site-footer button,
:root[data-theme='dark'] .theme-btn,
:root[data-theme='dark'] .hamburger,
:root[data-theme='dark'] .db-tabs button {
  background: color-mix(in srgb, var(--card), #0b1d31 18%);
  border-color: color-mix(in srgb, var(--line), #6aa4d8 28%);
}

:root[data-theme='dark'] .read-more:hover {
  box-shadow: 0 0 16px rgba(127, 255, 212, 0.32);
}