/* =========================================================
   SPEAKO — iOS 27 LIQUID GLASS DESIGN & MULTI-DEVICE UX
   (Desktop, iPad / Tablet, and iPhone / Mobile)
   ========================================================= */
:root {
  --bg: #EEF2F7;
  --surface: rgba(255, 255, 255, 0.58);
  --surface-strong: rgba(255, 255, 255, 0.78);
  --surface-subtle: rgba(255, 255, 255, 0.42);
  --surface-glass: rgba(255, 255, 255, 0.54);
  --glass-border: rgba(255, 255, 255, 0.78);
  --glass-highlight: inset 0 1px 1px 0 rgba(255, 255, 255, 0.92), inset 0 -1px 1px 0 rgba(255, 255, 255, 0.35);
  --ink: #111827;
  --muted: #64748B;
  --navy: #0B2A5B;
  --navy-dark: #071936;
  --teal: #0FA6A3;
  --teal-dark: #0B7F7C;
  --teal-soft: rgba(20, 163, 160, 0.13);
  --coral: #F47C6B;
  --green: #30D158;
  --red: #FF453A;
  --amber: #FF9F0A;
  --line: rgba(15, 23, 42, 0.06);
  --line-strong: rgba(15, 23, 42, 0.11);
  --shadow-xs: 0 4px 14px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 12px 34px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 22px 54px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 34px 84px rgba(15, 23, 42, 0.16);
  --radius-sm: 14px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-xl: 36px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Inter', 'Noto Sans Thai', sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Montserrat', 'Noto Sans Thai', sans-serif;
  --spring: cubic-bezier(0.22, 1, 0.36, 1);
  --spring-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(20, 163, 160, 0.22) 0%, transparent 42%),
    radial-gradient(circle at 88% 14%, rgba(99, 102, 241, 0.18) 0%, transparent 44%),
    radial-gradient(circle at 78% 82%, rgba(56, 189, 248, 0.20) 0%, transparent 48%),
    radial-gradient(circle at 18% 86%, rgba(244, 124, 107, 0.15) 0%, transparent 44%),
    linear-gradient(160deg, #F4F7FB 0%, #E8EFF8 52%, #EDF4F6 100%);
  background-attachment: fixed;
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

button, input, select, textarea {
  font-family: inherit;
  touch-action: manipulation;
}

a {
  color: inherit;
  text-decoration: none;
  touch-action: manipulation;
}

/* =========================================================
   iOS 27 OPTICAL BLUR-IN & BLUR-OUT KEYFRAMES
   ========================================================= */
@keyframes iosBlurIn {
  0% {
    opacity: 0;
    transform: translateY(18px) scale(0.972);
  }
  65% {
    opacity: 1;
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes iosBlurOut {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-10px) scale(0.98);
  }
}

@keyframes sheetBlurIn {
  0% {
    opacity: 0;
    transform: translateY(34px) scale(0.94);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes sheetBlurOut {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(24px) scale(0.95);
  }
}

@keyframes backdropFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes backdropFadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes checkPop {
  0% { transform: scale(0.4); opacity: 0; }
  65% { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes pulseRing {
  0% { box-shadow: 0 0 0 0 rgba(48, 209, 88, 0.55); }
  70% { box-shadow: 0 0 0 8px rgba(48, 209, 88, 0); }
  100% { box-shadow: 0 0 0 0 rgba(48, 209, 88, 0); }
}

/* Smooth View Container Transitions (crisp — no blur on tap) */
#app-main {
  transition: opacity 0.16s ease;
}
#app-main.view-fade-out {
  opacity: 0;
}
#app-main.view-fade-in {
  animation: viewFadeIn 0.32s var(--spring);
}
@keyframes viewFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.anim-up {
  animation: iosBlurIn 0.64s var(--spring) backwards;
  animation-delay: var(--d, 0.04s);
}

/* =========================================================
   iOS 27 FLOATING LIQUID GLASS NAVIGATION BAR
   ========================================================= */
.navbar {
  position: sticky;
  top: 14px;
  z-index: 100;
  padding: 0 24px;
  pointer-events: none;
}

.nav-inner {
  pointer-events: auto;
  max-width: 1120px;
  margin: 0 auto;
  min-height: 62px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.56);
  backdrop-filter: blur(36px) saturate(210%);
  -webkit-backdrop-filter: blur(36px) saturate(210%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-highlight), 0 14px 36px rgba(15, 23, 42, 0.07);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: transform 0.25s var(--spring);
}
.brand-logo:hover {
  transform: scale(1.03);
}
.brand-logo:active {
  transform: scale(0.96);
}
.brand-logo img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}
.brand-wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18.5px;
  color: var(--navy);
  letter-spacing: -0.03em;
}

/* Liquid Glass Segmented Control Pill Bar */
.segmented-nav {
  display: inline-flex;
  align-items: center;
  background: rgba(15, 23, 42, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.04);
  padding: 4px;
  border-radius: 999px;
  gap: 4px;
  flex-shrink: 0;
}

.seg-btn {
  position: relative;
  padding: 8px 20px;
  border-radius: 999px;
  border: none;
  background: transparent;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.3s var(--spring);
}
.seg-btn:hover {
  color: var(--ink);
}
.seg-btn:active {
  transform: scale(0.95);
}
.seg-btn.active {
  background: rgba(255, 255, 255, 0.90);
  color: var(--ink);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 4px 14px rgba(15, 23, 42, 0.08);
}

.notif-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 99px;
  background: var(--red);
  color: #fff;
  font-size: 10.5px;
  font-weight: 700;
}

/* Right User Pill & Perfectly Clipped Avatar Circle */
.account-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 4px 12px 4px 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-highlight);
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all 0.25s var(--spring);
}
.account-pill:hover {
  background: rgba(255, 255, 255, 0.88);
  transform: translateY(-1px);
}
.account-pill:active {
  transform: scale(0.96);
}

.avatar-circle {
  width: 30px;
  height: 30px;
  min-width: 30px;
  min-height: 30px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.45);
}
.avatar-circle.has-photo {
  background: linear-gradient(145deg, #D9EEF0 0%, #B8DDE2 100%) !important;
}
.avatar-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 12%;
  display: block;
  border-radius: 50%;
}

/* Studio Portrait Frame for Teacher Cards */
.teacher-photo-frame {
  width: 80px;
  height: 80px;
  border-radius: 22px;
  background: linear-gradient(145deg, #D9EEF0 0%, #C2E2E8 100%);
  border: 2px solid var(--glass-border);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
}
.teacher-photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 12%;
  display: block;
}

.account-pill-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}
.account-pill-credits {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--teal-dark);
  background: var(--teal-soft);
  padding: 2px 9px;
  border-radius: 99px;
  white-space: nowrap;
}

/* =========================================================
   SPACIOUS LAYOUT & TYPOGRAPHY
   ========================================================= */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 40px 24px 100px;
}

.page-hero {
  margin-bottom: 32px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 18px;
  animation: iosBlurIn 0.58s var(--spring) backwards;
}
.page-hero h1 {
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 700;
  color: var(--ink);
}
.page-hero p {
  font-size: 15.5px;
  color: var(--muted);
  margin-top: 6px;
}

/* =========================================================
   LIQUID GLASS CARDS & BENTO GRID
   ========================================================= */
.bento-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 24px;
  margin-bottom: 36px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.card {
  background: var(--surface);
  backdrop-filter: blur(34px) saturate(195%);
  -webkit-backdrop-filter: blur(34px) saturate(195%);
  border-radius: var(--radius-lg);
  padding: 30px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-highlight), var(--shadow-sm);
  transition:
    transform 0.36s var(--spring),
    box-shadow 0.36s var(--spring),
    background 0.28s ease;
}

.card-interactive {
  cursor: pointer;
}
.card-interactive:hover {
  background: var(--surface-strong);
  transform: translateY(-4px) scale(1.005);
  box-shadow: var(--glass-highlight), var(--shadow-md);
}
.card-interactive:active {
  transform: scale(0.985);
}

/* Translucent Deep Navy Glass Hero Card */
.next-class-card {
  background: linear-gradient(
    135deg,
    rgba(11, 42, 91, 0.88) 0%,
    rgba(6, 21, 45, 0.92) 100%
  );
  backdrop-filter: blur(36px) saturate(200%);
  -webkit-backdrop-filter: blur(36px) saturate(200%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow:
    inset 0 1px 1px rgba(255, 255, 255, 0.28),
    0 24px 52px rgba(11, 42, 91, 0.20);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 245px;
  position: relative;
  overflow: hidden;
}
.next-class-card::after {
  content: "";
  position: absolute;
  width: 340px;
  height: 340px;
  right: -90px;
  top: -110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(20, 163, 160, 0.38) 0%, transparent 70%);
  pointer-events: none;
}
.next-class-card h2,
.next-class-card h3 {
  color: #ffffff;
}

/* =========================================================
   TACTILE GLASS BUTTONS & PILLS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 11px 22px;
  min-height: 42px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    transform 0.26s var(--spring),
    background 0.22s ease,
    box-shadow 0.26s ease;
  white-space: nowrap;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn:active {
  transform: scale(0.94);
}
.btn-primary {
  background: linear-gradient(180deg, #16B5B2 0%, #0E9693 100%);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    0 8px 20px rgba(15, 166, 163, 0.28);
}
.btn-primary:hover {
  background: linear-gradient(180deg, #18C2BF 0%, #0B8582 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    0 12px 26px rgba(15, 166, 163, 0.36);
}
.btn-dark {
  background: rgba(17, 24, 39, 0.88);
  backdrop-filter: blur(16px);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.16);
}
.btn-dark:hover {
  background: rgba(17, 24, 39, 0.96);
}
.btn-white {
  background: rgba(255, 255, 255, 0.94);
  color: var(--navy);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
}
.btn-white:hover {
  background: #ffffff;
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.56);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-color: var(--glass-border);
  box-shadow: var(--glass-highlight), var(--shadow-xs);
  color: var(--ink);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.82);
}
.btn-glass {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.btn-glass:hover {
  background: rgba(255, 255, 255, 0.26);
}
.btn-sm {
  padding: 7px 15px;
  min-height: 36px;
  font-size: 12.5px;
}
.btn-lg {
  padding: 15px 28px;
  min-height: 50px;
  font-size: 15.5px;
}

.pill-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--teal-soft);
  color: var(--teal-dark);
  white-space: nowrap;
}
.pill-tag.dark {
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #fff;
}
.pill-tag.gray {
  background: rgba(15, 23, 42, 0.06);
  color: var(--muted);
}
.pill-tag.red {
  background: rgba(255, 69, 58, 0.14);
  color: var(--red);
}
.pill-tag.amber {
  background: rgba(245, 158, 11, 0.16);
  color: #9A5B00;
}
.pill-tag.vocab-pill {
  white-space: normal;
  max-width: 100%;
  overflow-wrap: anywhere;
  word-break: break-word;
  line-height: 1.45;
  padding: 6px 12px;
  border-radius: 12px;
  display: inline-block;
  text-align: left;
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  display: inline-block;
  animation: pulseRing 2.2s infinite;
}

/* =========================================================
   LIQUID GLASS LIST ROWS (SPACIOUS & UNCLUTTERED)
   ========================================================= */
.list-group {
  background: var(--surface);
  backdrop-filter: blur(34px) saturate(195%);
  -webkit-backdrop-filter: blur(34px) saturate(195%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-highlight), var(--shadow-sm);
  overflow: hidden;
}

.list-row {
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid var(--line);
  transition: background 0.22s ease;
}
.list-row:last-child {
  border-bottom: none;
}
.list-row:hover {
  background: rgba(255, 255, 255, 0.42);
}

.date-badge {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-xs);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.date-badge .m {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--coral);
  letter-spacing: 0.05em;
}
.date-badge .d {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.1;
}

/* =========================================================
   BOOKING STEPPER & GLASS TIME SLOTS
   ========================================================= */
.choice-pills {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.choice-card {
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.54);
  backdrop-filter: blur(20px);
  box-shadow: var(--glass-highlight), var(--shadow-xs);
  cursor: pointer;
  text-align: left;
  transition: all 0.28s var(--spring);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.choice-card:hover {
  background: rgba(255, 255, 255, 0.78);
  transform: translateY(-2px);
}
.choice-card:active {
  transform: scale(0.98);
}
.choice-card.selected {
  border-color: var(--teal);
  background: rgba(20, 163, 160, 0.14);
}

.date-strip {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
}
.day-pill {
  padding: 14px 6px;
  min-height: 70px;
  border-radius: 16px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.58);
  backdrop-filter: blur(16px);
  box-shadow: var(--glass-highlight);
  cursor: pointer;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all 0.25s var(--spring);
}
.day-pill:hover {
  background: rgba(255, 255, 255, 0.84);
  transform: translateY(-2px);
}
.day-pill:active {
  transform: scale(0.94);
}
.day-pill.selected {
  background: var(--navy);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: 0 10px 22px rgba(11, 42, 91, 0.22);
}
.day-pill .dow {
  font-size: 11px;
  font-weight: 600;
  opacity: 0.68;
  text-transform: uppercase;
}
.day-pill .dom {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  margin-top: 2px;
}

.time-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.time-pill {
  padding: 14px 10px;
  min-height: 48px;
  border-radius: 16px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.60);
  backdrop-filter: blur(16px);
  box-shadow: var(--glass-highlight);
  font-weight: 600;
  font-size: 14.5px;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.24s var(--spring);
}
.time-pill:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.86);
  border-color: var(--teal);
  transform: translateY(-2px);
}
.time-pill:active:not(:disabled) {
  transform: scale(0.95);
}
.time-pill.selected {
  background: linear-gradient(180deg, #16B5B2 0%, #0E9693 100%);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 20px rgba(20, 163, 160, 0.28);
}

.input-clean {
  width: 100%;
  padding: 13px 16px;
  min-height: 46px;
  border-radius: 16px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(16px);
  font-size: 15px;
  color: var(--ink);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.input-clean:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.94);
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgba(20, 163, 160, 0.15);
}

/* =========================================================
   TIMETABLE GRID (TRANSLUCENT GLASS CALENDAR WITH TOUCH SCROLL)
   ========================================================= */
.timetable-wrap {
  background: var(--surface);
  backdrop-filter: blur(34px) saturate(195%);
  -webkit-backdrop-filter: blur(34px) saturate(195%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-highlight), var(--shadow-sm);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.tt-grid {
  display: grid;
  grid-template-columns: 76px repeat(7, minmax(84px, 1fr));
  min-width: 660px;
}
.tt-cell {
  padding: 10px 6px;
  min-height: 54px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}
.tt-cell:nth-child(8n) {
  border-right: none;
}
.tt-cell:nth-child(8n + 1) {
  position: sticky;
  left: 0;
  z-index: 2;
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(12px);
}
.tt-head {
  background: rgba(255, 255, 255, 0.48);
  font-weight: 600;
  color: var(--muted);
  flex-direction: column;
  padding: 14px 6px;
}
.tt-head strong {
  color: var(--ink);
  font-size: 13px;
}
.tt-chip-booked {
  width: 100%;
  padding: 7px 8px;
  border-radius: 10px;
  background: var(--navy);
  color: #fff;
  font-weight: 600;
  font-size: 11px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s var(--spring);
}
.tt-chip-booked:hover {
  transform: scale(1.04);
}
.tt-chip-open {
  width: 100%;
  padding: 8px 6px;
  min-height: 36px;
  border-radius: 10px;
  background: rgba(20, 163, 160, 0.14);
  color: var(--teal-dark);
  border: 1px solid rgba(20, 163, 160, 0.22);
  font-weight: 600;
  font-size: 11.5px;
  cursor: pointer;
  transition: all 0.2s var(--spring);
}
.tt-chip-open:hover {
  background: rgba(20, 163, 160, 0.24);
  transform: scale(1.04);
}

/* =========================================================
   PRICING CARDS
   ========================================================= */
.price-card {
  position: relative;
  background: var(--surface);
  backdrop-filter: blur(34px) saturate(195%);
  -webkit-backdrop-filter: blur(34px) saturate(195%);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-highlight), var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.35s var(--spring), box-shadow 0.35s var(--spring);
}
.price-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--glass-highlight), var(--shadow-md);
}
.price-card.dark-trial {
  background: linear-gradient(145deg, rgba(7, 33, 70, 0.92) 0%, rgba(5, 19, 42, 0.95) 100%);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 22px 48px rgba(7, 33, 70, 0.22);
}
.start-here-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background: var(--coral);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 5px 13px;
  border-radius: 99px;
  text-transform: uppercase;
}
.price-amount {
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
}
.price-features {
  list-style: none;
  margin: 22px 0 28px;
  display: flex;
  flex-direction: column;
  gap: 11px;
  flex: 1;
  font-size: 14px;
}
.price-features li {
  display: flex;
  align-items: center;
  gap: 10px;
}
.check-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--teal-soft);
  color: var(--teal-dark);
  display: inline-grid;
  place-items: center;
  font-size: 11px;
  font-weight: 800;
  flex-shrink: 0;
}
.price-card.dark-trial .check-dot {
  background: rgba(20, 163, 160, 0.25);
  color: #38E4E0;
}

/* =========================================================
   iOS 27 LIQUID GLASS SHEET MODALS (BLUR IN & OUT)
   ========================================================= */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.28);
  backdrop-filter: blur(22px) saturate(160%);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  z-index: 500;
  display: none;
  place-items: center;
  padding: 20px;
  animation: backdropFadeIn 0.28s ease forwards;
}
.modal-backdrop.open {
  display: grid;
}
.modal-backdrop.closing {
  animation: backdropFadeOut 0.24s ease forwards;
}
.modal-sheet {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(42px) saturate(210%);
  -webkit-backdrop-filter: blur(42px) saturate(210%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  max-width: 600px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  padding: 34px;
  box-shadow: var(--glass-highlight), var(--shadow-lg);
  animation: sheetBlurIn 0.46s var(--spring) forwards;
}
.modal-backdrop.closing .modal-sheet {
  animation: sheetBlurOut 0.24s ease forwards;
}
.modal-sheet.fullscreen-deck {
  max-width: 1240px;
  height: 86vh;
  padding: 20px;
  display: flex;
  flex-direction: column;
}
.deck-iframe {
  flex: 1;
  width: 100%;
  border: none;
  border-radius: 20px;
  background: #E7E3DD;
}

.apple-check-circle {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: rgba(48, 209, 88, 0.16);
  color: var(--green);
  display: grid;
  place-items: center;
  margin: 0 auto 18px;
  font-size: 32px;
  font-weight: 800;
  animation: checkPop 0.55s var(--spring-bounce);
}

/* Toast */
#toast-container {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 600;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: max-content;
  max-width: calc(100vw - 32px);
}
.toast {
  background: rgba(17, 24, 39, 0.82);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 500;
  text-align: center;
  box-shadow: var(--shadow-md);
  animation: sheetBlurIn 0.38s var(--spring);
}
.toast.fade-out {
  animation: iosBlurOut 0.26s ease forwards;
}

/* =========================================================
   ROLE BADGES & AVAILABILITY CHIPS
   ========================================================= */
.role-portal-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}
.role-portal-badge.student {
  background: var(--teal-soft);
  color: var(--teal-dark);
}
.role-portal-badge.teacher {
  background: rgba(79, 70, 229, 0.12);
  color: #3730A3;
}
.role-portal-badge.admin {
  background: rgba(220, 38, 38, 0.12);
  color: #B91C1C;
}

.login-shell {
  min-height: calc(100vh - 90px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 36px 18px 80px;
}

.avail-hour-chip {
  padding: 10px 13px;
  min-height: 40px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.58);
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.22s var(--spring);
}
.avail-hour-chip.on {
  background: linear-gradient(180deg, #16B5B2 0%, #0E9693 100%);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 12px rgba(20, 163, 160, 0.24);
}
.avail-hour-chip:hover {
  transform: translateY(-1px);
}

/* =========================================================
   TABLET & iPAD RESPONSIVE DESIGN (<= 1024px)
   ========================================================= */
@media (max-width: 1024px) {
  .container {
    padding: 32px 20px 100px;
  }
  .bento-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .time-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .seg-btn {
    padding: 8px 15px;
    font-size: 13px;
  }
}

/* =========================================================
   MOBILE / iPHONE RESPONSIVE DESIGN (<= 680px)
   Thumb-Friendly Bottom Liquid Glass Dock & Easy Touch Targets
   ========================================================= */
@media (max-width: 680px) {
  .navbar {
    top: 10px;
    padding: 0 12px;
  }
  .nav-inner {
    min-height: 54px;
    padding: 6px 12px;
    border-radius: 999px;
  }
  .role-portal-badge {
    display: none;
  }
  /* Move primary navigation tabs to a thumb-reachable iOS Liquid Glass bottom dock */
  .navbar .segmented-nav {
    position: fixed;
    bottom: max(12px, env(safe-area-inset-bottom));
    left: 12px;
    right: 12px;
    z-index: 300;
    background: rgba(255, 255, 255, 0.76);
    backdrop-filter: blur(38px) saturate(210%);
    -webkit-backdrop-filter: blur(38px) saturate(210%);
    border: 1px solid rgba(255, 255, 255, 0.88);
    box-shadow:
      inset 0 1px 1px rgba(255, 255, 255, 0.95),
      0 18px 44px rgba(15, 23, 42, 0.16);
    padding: 5px;
    display: flex;
    justify-content: space-between;
    overflow-x: auto;
  }
  .navbar .segmented-nav .seg-btn {
    flex: 1;
    padding: 11px 8px;
    font-size: 12.5px;
    min-height: 42px;
  }
  .container {
    padding: 22px 14px 116px;
  }
  .page-hero {
    margin-bottom: 22px;
    gap: 14px;
  }
  .page-hero h1 {
    font-size: 26px;
  }
  .page-hero p {
    font-size: 14px;
  }
  .card, .price-card {
    padding: 22px 18px;
    border-radius: 24px;
  }
  .grid-2, .grid-3, .choice-pills {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  /* Swipeable 7-Day Date Strip on Phones */
  .date-strip {
    display: grid;
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: minmax(64px, 1fr);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
    gap: 8px;
  }
  .day-pill {
    scroll-snap-align: start;
    min-height: 68px;
    padding: 10px 6px;
  }
  /* Large 2-Column Time Slots on Phones for Effortless Tapping */
  .time-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .time-pill {
    min-height: 50px;
    font-size: 15.5px;
    padding: 14px 10px;
  }
  /* Prevent iOS Safari zoom on input focus */
  .input-clean, select.input-clean, textarea.input-clean {
    font-size: 16px;
    min-height: 48px;
  }
  .list-row {
    padding: 18px 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
  .list-row > div:last-child {
    width: 100%;
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
  }
  .modal-backdrop {
    padding: 10px;
    align-items: flex-end;
  }
  .modal-sheet {
    padding: 24px 18px;
    border-radius: 28px 28px 22px 22px;
    max-height: 90vh;
  }
  #toast-container {
    bottom: 84px;
  }
}


/* =========================================================
   V2 — MOBILE FIXES, NO-BLUR TAPS, LIVING BACKGROUND & MASCOT,
   STUDENT PORTAL UI STATES
   ========================================================= */

/* ---------- Kill horizontal scrolling everywhere ---------- */
html, body { max-width: 100%; overflow-x: hidden; }
@supports (overflow: clip) { html, body { overflow-x: clip; } }
img, video, iframe { max-width: 100%; }
.container, .card, .list-group, .list-row, .bento-grid > *, .grid-2 > *, .grid-3 > * { min-width: 0; max-width: 100%; }
.list-row { overflow-wrap: anywhere; }
.segmented-nav { max-width: 100%; }
.card .segmented-nav, .container .segmented-nav, .login-shell .segmented-nav {
  overflow-x: auto;
  scrollbar-width: none;
}
.segmented-nav::-webkit-scrollbar { display: none; }

/* ---------- Taps: crisp press feedback, never blur ---------- */
.btn:active, .seg-btn:active, .account-pill:active { filter: none; }

/* ---------- Living background: Buffer-style grid + floating Thai letters ---------- */
.bg-motion {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background: #F8FAFC;
}
.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(15, 23, 42, 0.042) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.042) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 92% 88% at 50% 50%, #000 58%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 92% 88% at 50% 50%, #000 58%, transparent 100%);
}
.bg-blob {
  position: absolute;
  width: 62vmax;
  height: 62vmax;
  border-radius: 50%;
  opacity: 0.42;
  will-change: transform;
}
.bg-blob.b1 { top: -22vmax; left: -18vmax; background: radial-gradient(circle, rgba(15,166,163,0.24) 0%, transparent 62%); animation: blobDrift1 26s ease-in-out infinite alternate; }
.bg-blob.b2 { top: -16vmax; right: -22vmax; background: radial-gradient(circle, rgba(11,42,91,0.16) 0%, transparent 62%); animation: blobDrift2 32s ease-in-out infinite alternate; }
.bg-blob.b3 { bottom: -26vmax; left: 10vmax; background: radial-gradient(circle, rgba(244,124,107,0.16) 0%, transparent 62%); animation: blobDrift3 38s ease-in-out infinite alternate; }
@keyframes blobDrift1 { to { transform: translate(18vw, 22vh) scale(1.12); } }
@keyframes blobDrift2 { to { transform: translate(-20vw, 26vh) scale(0.92); } }
@keyframes blobDrift3 { to { transform: translate(14vw, -24vh) scale(1.08); } }

/* Floating Thai Letter Tiles (Buffer.com hero style, slowly follow cursor) */
.thai-float-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.thai-float-tile {
  position: absolute;
  width: 56px;
  height: 56px;
  margin-left: -28px;
  margin-top: -28px;
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(15, 23, 42, 0.07);
  box-shadow:
    0 10px 26px rgba(11, 42, 91, 0.07),
    0 2px 6px rgba(11, 42, 91, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  will-change: transform;
  user-select: none;
}
.thai-float-tile::before {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 11px;
  background: var(--tile-bg, #F1F5F9);
  opacity: 0.65;
  z-index: 0;
}
.thai-float-tile .thai-char {
  position: relative;
  z-index: 1;
  font-family: "Noto Sans Thai", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 23px;
  font-weight: 800;
  line-height: 1.05;
  color: var(--tile-color, var(--navy));
}
.thai-float-tile .thai-sub {
  position: relative;
  z-index: 1;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--muted);
  opacity: 0.85;
  line-height: 1;
}
@media (max-width: 768px) {
  .thai-float-tile {
    width: 44px;
    height: 44px;
    margin-left: -22px;
    margin-top: -22px;
    border-radius: 12px;
    opacity: 0.72;
  }
  .thai-float-tile .thai-char {
    font-size: 18px;
  }
  .thai-float-tile .thai-sub {
    font-size: 8px;
  }
}

/* Foreground mascot buddy with rotating Thai phrase bubble */
.mascot-buddy {
  position: fixed;
  left: 22px;
  bottom: 22px;
  z-index: 250;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  pointer-events: none;
}
.mascot-face {
  pointer-events: auto;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid #fff;
  box-shadow: 0 12px 30px rgba(11, 42, 91, 0.22);
  background: #fff;
  cursor: pointer;
  position: relative;
  animation: mascotBob 3.2s ease-in-out infinite;
  padding: 0;
}
.mascot-face img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.mascot-face img.on { opacity: 1; }
.mascot-face:active { transform: scale(0.94); }
@keyframes mascotBob {
  0%, 100% { transform: translateY(0) rotate(-3deg); }
  50% { transform: translateY(-8px) rotate(3deg); }
}
.mascot-bubble {
  background: #fff;
  color: var(--navy);
  border-radius: 16px 16px 16px 4px;
  padding: 9px 13px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.35;
  box-shadow: 0 10px 26px rgba(11, 42, 91, 0.14);
  max-width: 210px;
  margin-bottom: 30px;
  opacity: 0;
  transform: translateY(6px) scale(0.96);
  transition: opacity 0.3s ease, transform 0.3s var(--spring);
}
.mascot-bubble.show { opacity: 1; transform: none; }
.mascot-bubble small { display: block; font-weight: 500; color: var(--muted); font-size: 11.5px; }

/* ---------- Student portal: new UI states ---------- */
.np-goal { color: rgba(255,255,255,0.86); font-size: 14.5px; margin-top: 8px; }
.np-countdown {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(255,255,255,0.14); color: #fff;
  font-size: 12px; font-weight: 700;
}
.np-countdown.soon { background: var(--teal); animation: softPulse 1.6s ease-in-out infinite; }
.np-countdown.live { background: var(--coral); }
@keyframes softPulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.05); } }

.np-progress { margin-top: 14px; }
.np-progress-label { display: flex; justify-content: space-between; font-size: 12.5px; color: rgba(255,255,255,0.8); margin-bottom: 6px; }
.np-progress-track { height: 8px; border-radius: 99px; background: rgba(255,255,255,0.16); overflow: hidden; }
.np-progress-fill {
  height: 100%; width: 100%;
  border-radius: 99px; background: var(--teal);
  transform-origin: left center;
  transform: scaleX(0);
  animation: npFill 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.15s forwards;
}
@keyframes npFill { to { transform: scaleX(var(--p, 0)); } }

.np-checklist { list-style: none; margin-top: 18px; display: grid; gap: 6px; }
.np-check {
  display: flex; align-items: center; gap: 12px;
  min-height: 44px; padding: 8px 12px; width: 100%;
  border-radius: 14px; border: 1px solid rgba(255,255,255,0.16);
  background: rgba(255,255,255,0.06); color: #fff;
  font-size: 14px; font-weight: 500; text-align: left; cursor: pointer;
  transition: background 0.2s ease;
}
.np-check .box {
  width: 22px; height: 22px; border-radius: 7px; flex-shrink: 0;
  border: 2px solid rgba(255,255,255,0.55);
  display: grid; place-items: center; font-size: 13px; font-weight: 800;
}
.np-check.done { background: rgba(15,166,163,0.22); }
.np-check.done .box { background: var(--teal); border-color: var(--teal); }
.np-check.done .box span { animation: checkTick 0.2s ease-out; }
.np-check.done .label { opacity: 0.7; text-decoration: line-through; }
@keyframes checkTick { from { transform: scale(0.3); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.btn-join-active { position: relative; overflow: hidden; }
.btn-join-active::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,0.55) 50%, transparent 70%);
  transform: translateX(-120%);
  animation: shimmerOnce 1.1s ease-out 0.3s 1 forwards;
}
@keyframes shimmerOnce { to { transform: translateX(120%); } }

.btn-outline {
  background: transparent; color: var(--navy);
  border: 1.5px solid rgba(11,42,91,0.22);
}
.btn-outline:hover { background: rgba(11,42,91,0.05); }
.next-class-card .btn-outline { color: #fff; border-color: rgba(255,255,255,0.4); }
.next-class-card .btn-outline:hover { background: rgba(255,255,255,0.08); }
.link-cancel {
  background: none; border: none; cursor: pointer;
  color: #C2564A; font-size: 13px; font-weight: 600;
  min-height: 44px; padding: 0 6px; text-decoration: underline; text-underline-offset: 3px;
}
.next-class-card .link-cancel { color: #FFB4AA; }
.cancel-confirm {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
  padding: 8px 12px; border-radius: 14px;
  background: rgba(244,124,107,0.12); color: var(--ink); font-size: 13px; font-weight: 600;
}
.next-class-card .cancel-confirm { color: #fff; background: rgba(244,124,107,0.22); }

.credit-banner {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  padding: 14px 18px; margin-bottom: 14px; border-radius: 18px;
  background: rgba(255,255,255,0.78); border: 1px solid rgba(244,124,107,0.45);
  color: var(--ink); font-size: 14px; font-weight: 600;
}
.credit-banner .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--coral); display: inline-block; margin-right: 8px; }
.tz-note { font-size: 12.5px; color: var(--muted); font-weight: 600; }
.upcoming-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* ---------- Phones (<= 680px) ---------- */
@media (max-width: 680px) {
  /* backdrop-filter on .nav-inner turned the "fixed" bottom dock into a child of the
     header (it rendered on top of the header). Removing it lets the dock sit at the bottom. */
  .nav-inner {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255, 255, 255, 0.92);
    padding: 6px 8px 6px 12px;
    gap: 8px;
  }
  .account-pill-text { display: none; }
  .nav-inner .pill-tag { display: none; }
  .navbar .segmented-nav { justify-content: flex-start; gap: 2px; }
  .navbar .segmented-nav .seg-btn { flex: 1 0 auto; padding: 11px 9px; font-size: 12px; min-height: 44px; }
  .btn, .btn-sm { min-height: 44px; }
  .page-hero { align-items: flex-start; }
  .page-hero > div:last-child { display: flex; flex-wrap: wrap; gap: 10px; }
  .list-row [style*="display:flex"] { flex-wrap: wrap; }
  .list-row > * { max-width: 100%; }
  .card input[type="search"] { max-width: 100% !important; width: 100%; }
  .card .segmented-nav { width: 100%; }
  .login-shell { padding: 24px 14px 60px; align-items: flex-start; }
  .login-shell .card { padding: 22px 18px !important; }
  .next-class-card h2 { font-size: 22px !important; }
  .upcoming-actions { width: 100%; }
  .upcoming-actions .link-cancel { margin-left: auto; }
  .bg-face.f1 { --s: 96px; }
  .bg-face.f2 { --s: 78px; }
  .bg-face.f3 { --s: 64px; }
  .mascot-buddy { left: auto; right: 14px; bottom: calc(max(12px, env(safe-area-inset-bottom)) + 66px); flex-direction: row-reverse; }
  .mascot-face { width: 50px; height: 50px; }
  .mascot-bubble { border-radius: 16px 16px 4px 16px; max-width: 180px; font-size: 12.5px; margin-bottom: 22px; }
  body[data-portal="login"] .mascot-buddy { bottom: 18px; }
}

/* ---------- Respect reduced motion: final state, no movement ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .np-progress-fill { transform: scaleX(var(--p, 0)); }
  .bg-blob, .bg-face, .mascot-face { animation: none !important; }
}