/* ==========================================================================
   RIVERSIDE HOMESTAY & FARM — "MỘT ĐÊM CHO EM"
   Art Direction: Vietnamese Modernist Exhibition Canvas (Be Vietnam Pro)
   Principles: No Boxed Cards, No Labels/Dots, Architectural Hairlines,
               True Vertical Timeline, Compact Dropdown Selectors
   ========================================================================== */

.art-canvas-body {
  background-color: #ffffff;
  color: var(--text-main);
  font-family: var(--font-family);
}

.art-loading {
  max-width: 420px;
  margin: 80px auto;
  padding: 24px;
  text-align: center;
  color: var(--text-secondary);
  font-weight: 300;
}

/* ==========================================================================
   1. MINIMALIST TOP ARCHITECTURAL STRIP (.art-topbar)
   ========================================================================== */

.art-topbar {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(17, 17, 17, 0.12);
}

.art-topbar-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

@media (min-width: 640px) {
  .art-topbar-inner {
    padding: 14px 20px;
    gap: 16px;
  }
}

.art-brand,
.art-back-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-main);
  font-size: 0.84rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: nowrap;
  min-width: 0;
}

.art-brand-logo {
  height: 26px;
  width: auto;
  border-radius: 0;
  object-fit: contain;
  flex-shrink: 0;
  display: block;
}

@media (min-width: 640px) {
  .art-brand-logo {
    height: 30px;
  }
}

.art-topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.84rem;
  flex-shrink: 0;
  white-space: nowrap;
}

.art-topbar-date {
  color: var(--text-muted);
  font-weight: 300;
  display: none;
}

@media (min-width: 640px) {
  .art-topbar-date {
    display: inline;
  }
}

.art-topbar-link {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.art-topbar-link:hover {
  text-decoration: underline;
}

.art-spots-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.art-spots-text strong {
  color: var(--primary);
  font-weight: 600;
}

/* ==========================================================================
   2. MAIN EXHIBITION CONTAINER & HERO (.art-hero)
   ========================================================================== */

.art-main {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px 88px;
}

.art-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: 24px 0 44px;
  border-bottom: 1px solid rgba(17, 17, 17, 0.14);
  align-items: end;
}

@media (min-width: 900px) {
  .art-hero {
    grid-template-columns: 6fr 6fr;
    gap: 44px;
    padding: 48px 0 64px;
    align-items: center;
  }
}

.art-hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.art-issue-num {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 200;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--primary);
  margin-bottom: 8px;
}

.art-hero-title {
  font-family: var(--font-family);
  font-size: clamp(2.15rem, 4vw, 3.55rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--text-main);
  margin: 0 0 20px;
  white-space: nowrap;
}

.title-thin {
  font-weight: 200;
  color: var(--primary);
}

.art-hero-sub {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  margin: 0 0 22px;
}

.art-epigraph {
  font-family: var(--font-family);
  font-size: clamp(1.08rem, 1.8vw, 1.32rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.55;
  color: var(--text-main);
  padding-left: 18px;
  border-left: 2px solid var(--primary);
  margin: 0 0 26px;
  max-width: 54ch;
}

/* Architectural Meta Strip (Hairline Grid, Zero Boxes) */
.art-meta-strip {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid rgba(17, 17, 17, 0.14);
  border-bottom: 1px solid rgba(17, 17, 17, 0.14);
  margin-bottom: 26px;
}

@media (min-width: 540px) {
  .art-meta-strip {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .art-meta-col:first-child {
    border-right: 1px solid rgba(17, 17, 17, 0.14);
    padding-right: 16px;
  }
}

.art-meta-col {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.art-meta-col strong {
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-main);
}

.art-meta-col span {
  font-size: 0.84rem;
  font-weight: 300;
  color: var(--text-secondary);
}

.art-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  width: 100%;
}

.art-btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  min-height: 50px;
  padding: 0 28px;
  border-radius: 999px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: background-color 0.2s ease, transform 0.16s ease;
}

.art-btn-primary:hover {
  background-color: var(--primary-hover);
  color: #ffffff;
}

.art-btn-light {
  background-color: var(--primary);
  color: #ffffff;
  font-weight: 600;
  border-radius: 999px;
  text-decoration: none;
}

.art-btn-light:hover {
  background-color: var(--primary-hover);
  color: #ffffff;
}

.art-text-action {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-main);
  text-decoration: none;
  border-bottom: 1px solid var(--text-main);
  padding-bottom: 2px;
}

.art-text-action:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* Gallery Visual Frame */
.art-hero-frame {
  margin: 0;
  width: 100%;
}

.art-photo-crop {
  width: 100%;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: #141210;
}

.art-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  transition: transform 6s ease;
}

.art-hero-frame:hover .art-hero-img {
  transform: scale(1.03);
}

/* ==========================================================================
   3. SECTION II: CONTINUOUS VERTICAL TIMELINE (.art-timeline-section)
   ========================================================================== */

.art-section {
  padding: 44px 0;
  border-bottom: 1px solid rgba(17, 17, 17, 0.14);
}

@media (min-width: 900px) {
  .art-section {
    padding: 64px 0;
  }
}

.art-timeline-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

@media (min-width: 900px) {
  .art-timeline-section {
    grid-template-columns: 5fr 7fr;
    gap: 56px;
  }
}

.art-section-heading {
  font-family: var(--font-family);
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--text-main);
  margin: 0 0 12px;
}

.art-lead-paragraph {
  font-size: 0.96rem;
  font-weight: 300;
  line-height: 1.68;
  color: var(--text-secondary);
  margin: 0 0 24px;
}

.art-secondary-figure {
  margin: 0;
  overflow: hidden;
}

.art-secondary-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center 35%;
  display: block;
}

/* Continuous Vertical Timeline Axis (No Dots, No Cards — Pure Architectural Lines) */
.art-timeline-axis {
  position: relative;
  border-left: 1px solid var(--text-main);
  padding-left: 28px;
  display: flex;
  flex-direction: column;
  gap: 36px;
  margin-left: 4px;
}

@media (min-width: 640px) {
  .art-timeline-axis {
    padding-left: 40px;
    gap: 44px;
  }
}

.art-timeline-node {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

@media (min-width: 560px) {
  .art-timeline-node {
    grid-template-columns: 96px 1fr;
    gap: 20px;
    align-items: baseline;
  }
}

/* Horizontal Architectural Tick Line from Vertical Axis (Matched to Logo Vermilion Red) */
.art-timeline-node::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 18px;
  width: 18px;
  height: 1.5px;
  background-color: var(--primary);
}

@media (min-width: 640px) {
  .art-timeline-node::before {
    left: -40px;
    width: 26px;
  }
}

.node-time {
  font-size: 1.85rem;
  font-weight: 200;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--primary);
}

.node-title {
  font-family: var(--font-family);
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--text-main);
  margin: 0 0 6px;
  letter-spacing: -0.015em;
}

.node-desc {
  font-size: 0.92rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
}

/* ==========================================================================
   4. SECTION III: ARCHITECTURAL PRICE LEDGER & COMPACT DROPDOWN BAR
   ========================================================================== */

.art-pricing-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 28px;
}

.art-section-sub {
  font-size: 0.92rem;
  font-weight: 300;
  color: var(--text-secondary);
  margin: 0;
}

.art-capacity-meta {
  min-width: 240px;
  text-align: left;
}

@media (min-width: 640px) {
  .art-capacity-meta {
    text-align: right;
  }
}

.art-capacity-numbers {
  font-size: 0.88rem;
  font-weight: 400;
  color: var(--text-main);
  margin-bottom: 6px;
}

.art-capacity-numbers strong {
  font-weight: 600;
  color: var(--primary);
}

.art-capacity-line {
  width: 100%;
  height: 2px;
  background: rgba(17, 17, 17, 0.12);
  margin-bottom: 6px;
  overflow: hidden;
}

.art-capacity-fill {
  height: 100%;
  background: var(--primary);
  transition: width 0.4s ease;
}

.art-deadline-text {
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--text-muted);
}

/* Price Ledger: Pure Hairline Rows, Zero Card Boxes */
.art-price-ledger {
  border-top: 1px solid var(--text-main);
  margin-bottom: 28px;
}

.ledger-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(17, 17, 17, 0.12);
  text-decoration: none;
  color: var(--text-main);
  transition: padding-left 0.18s ease, color 0.18s ease;
}

a.ledger-row:hover {
  padding-left: 8px;
  color: var(--primary);
}

.ledger-main {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

@media (min-width: 680px) {
  .ledger-main {
    flex-direction: row;
    align-items: baseline;
    gap: 16px;
  }
}

.ledger-tier {
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.ledger-note {
  font-size: 0.86rem;
  font-weight: 300;
  color: var(--text-secondary);
}

.ledger-price {
  text-align: right;
  flex-shrink: 0;
  white-space: nowrap;
}

.ledger-price strong {
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.ledger-price strong.free-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
}

.ledger-price small {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-left: 2px;
}

/* Compact Inline Dropdown Selection Bar */
.art-quick-booking-bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  align-items: center;
  padding-top: 4px;
}

@media (min-width: 680px) {
  .art-quick-booking-bar {
    grid-template-columns: 1fr auto;
    gap: 16px;
  }
}

.art-select-wrap {
  position: relative;
  width: 100%;
}

.art-select-wrap::after {
  content: "";
  position: absolute;
  right: 16px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--text-main);
  border-bottom: 1.5px solid var(--text-main);
  transform: translateY(-65%) rotate(45deg);
  pointer-events: none;
}

.art-select-wrap.has-custom-select::after,
.art-select-wrap:has(.custom-select-container)::after {
  display: none !important;
}

.art-dropdown {
  width: 100%;
  min-height: 50px;
  padding: 0 40px 0 16px;
  font-family: var(--font-family);
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text-main);
  background-color: transparent;
  border: 1px solid rgba(17, 17, 17, 0.28);
  border-radius: 999px;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: border-color 0.18s ease;
}

.art-dropdown:hover,
.art-dropdown:focus {
  border-color: var(--primary);
  outline: none;
}

.art-btn-book {
  width: 100%;
}

@media (min-width: 680px) {
  .art-btn-book {
    width: auto;
    min-width: 260px;
  }
}

/* ==========================================================================
   5. MINIMALIST FOOTER & MOBILE STICKY BAR
   ========================================================================== */

.art-footer {
  padding-top: 32px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  font-size: 0.86rem;
}

.art-footer-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.art-footer-left strong {
  font-weight: 600;
}

.art-footer-left span {
  font-weight: 300;
  color: var(--text-secondary);
}

.art-footer-right {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.art-phone-link {
  font-weight: 500;
  color: var(--text-main);
  text-decoration: none;
  border-bottom: 1px solid rgba(17, 17, 17, 0.25);
}

.art-staff-link {
  font-weight: 300;
  color: var(--text-muted);
  text-decoration: none;
}

.floating-mobile-cta {
  position: fixed;
  bottom: 12px;
  left: 14px;
  right: 14px;
  background: rgba(17, 17, 17, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 999px;
  padding: 8px 10px 8px 18px;
  z-index: 95;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

@media (min-width: 900px) {
  .floating-mobile-cta {
    display: none !important;
  }
}

.floating-cta-info {
  display: flex;
  flex-direction: column;
}

.floating-cta-title {
  font-size: 0.86rem;
  font-weight: 600;
  color: #ffffff;
  line-height: 1.2;
}

.floating-cta-meta {
  font-size: 0.74rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.75);
}

/* ==========================================================================
   6. SCREEN 2 (REGISTER.HTML): CARD-LESS, LABEL-LESS, COMPACT CHECKOUT
   ========================================================================== */

.art-register-shell {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 24px 20px 72px;
}

.art-register-header {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--text-main);
  margin-bottom: 28px;
}

.art-register-title {
  font-size: clamp(1.75rem, 3.5vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.1;
  margin: 0 0 6px;
}

.art-register-meta {
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--text-secondary);
  margin: 0;
}

.art-register-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

@media (min-width: 860px) {
  .art-register-layout {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
  }
}

.art-form-col {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.art-form-section {
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(17, 17, 17, 0.12);
}

.art-form-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.art-step-heading {
  font-family: var(--font-family);
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin: 0 0 16px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.step-num {
  font-weight: 200;
  font-size: 1.35rem;
  color: var(--primary);
}

.art-step-header-split {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.art-step-header-split .art-step-heading {
  margin-bottom: 0;
}

/* Label-less Bottom-Line Inputs (.art-line-input) */
.art-inputs-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

@media (min-width: 580px) {
  .art-inputs-row {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}

.art-line-input {
  width: 100%;
  height: 46px;
  padding: 8px 0;
  font-family: var(--font-family);
  font-size: 0.98rem;
  font-weight: 400;
  color: var(--text-main);
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(17, 17, 17, 0.30);
  border-radius: 0;
  transition: border-color 0.18s ease;
}

.art-line-input::placeholder {
  color: var(--text-muted);
  font-weight: 300;
}

.art-line-input:focus {
  outline: none;
  border-bottom-color: var(--primary);
  border-bottom-width: 1.5px;
}

/* Compact Preset Dropdown in Register Section Header */
.art-inline-select-wrap {
  position: relative;
}

.art-compact-select {
  height: 36px;
  padding: 0 28px 0 12px;
  font-family: var(--font-family);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--primary);
  background: transparent;
  border: 1px solid rgba(201, 43, 0, 0.35);
  border-radius: 999px;
  cursor: pointer;
}

/* Ultra-Compact Hairline Ticket Rows (No Cards) */
.art-ticket-rows {
  border-top: 1px solid rgba(17, 17, 17, 0.12);
}

.art-tier-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(17, 17, 17, 0.10);
}

.art-tier-left {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  min-width: 0;
  flex: 1;
}

.art-tier-name {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
}

.art-tier-line.active-tier .art-tier-name {
  font-weight: 600;
  color: var(--primary);
}

.art-tier-price {
  font-size: 0.86rem;
  font-weight: 300;
  color: var(--text-secondary);
}

.art-tier-price.free {
  color: var(--primary);
}

.art-tier-sub {
  width: 100%;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--primary);
}

/* Minimal Inline Stepper */
.art-stepper {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.art-step-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid rgba(17, 17, 17, 0.22);
  background: transparent;
  color: var(--text-main);
  font-size: 1rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.art-step-btn:hover {
  border-color: var(--primary);
  background: var(--primary);
  color: #ffffff;
}

.art-step-val {
  min-width: 22px;
  text-align: center;
  font-size: 0.94rem;
  font-weight: 600;
}

/* Compact 2-Option Payment Toggle */
/* Compact 2-Option Payment Toggle — Rock-solid stability without layout shifts */
.art-payment-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  width: 100%;
}

.art-pay-pill {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  height: 44px;
  padding: 0 14px;
  background-color: #ffffff;
  border: 1px solid rgba(17, 17, 17, 0.22);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600; /* Đồng nhất font-weight 600 cả 2 trạng thái để độ rộng chữ không bị giật */
  color: var(--text-secondary);
  cursor: pointer;
  text-align: center;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  box-sizing: border-box;
  transition: background-color 0.18s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.18s cubic-bezier(0.16, 1, 0.3, 1),
              color 0.18s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.18s ease,
              transform 0.1s ease;
}

.art-pay-pill span {
  pointer-events: none;
  white-space: nowrap;
}

.art-pay-pill input[type="radio"] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
  opacity: 0;
  pointer-events: none;
}

.art-pay-pill:hover:not(.selected) {
  border-color: var(--text-main);
  background-color: var(--bg-tonal);
  color: var(--text-main);
}

.art-pay-pill:focus-within {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.art-pay-pill:active {
  transform: scale(0.985);
}

.art-pay-pill.selected {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(201, 43, 0, 0.22);
}

/* Payment Hint — Cố định chiều cao vùng text (min-height) để không làm nhảy các khối bên dưới */
.art-payment-hint {
  font-size: 0.84rem;
  font-weight: 400;
  line-height: 1.45;
  color: var(--text-secondary);
  margin: 10px 0 16px;
  min-height: 2.6em; /* Luôn giữ chỗ cho 2 dòng để triệt tiêu hoàn toàn layout shift */
  display: flex;
  align-items: center;
  transition: opacity 0.12s ease;
}

.art-note-accordion {
  border-top: 1px solid rgba(17, 17, 17, 0.10);
  padding-top: 12px;
}

.art-note-summary {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.art-note-summary::-webkit-details-marker {
  display: none;
}

.art-note-summary:hover {
  color: var(--primary);
}

.art-note-body {
  padding-top: 10px;
}

.art-line-textarea {
  width: 100%;
  font-family: var(--font-family);
  font-size: 0.92rem;
  font-weight: 400;
  color: var(--text-main);
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(17, 17, 17, 0.28);
  padding: 6px 0;
  resize: vertical;
}

.art-line-textarea:focus {
  outline: none;
  border-bottom-color: var(--primary);
}

/* Sticky Right Column Summary (Architectural Hairlines, No Boxed Card) */
@media (min-width: 860px) {
  .art-summary-col {
    position: sticky;
    top: 84px;
  }
}

.art-summary-sheet {
  border-top: 2px solid var(--text-main);
  padding-top: 20px;
}

.art-summary-heading {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 14px;
}

.art-summary-lines {
  border-top: 1px solid rgba(17, 17, 17, 0.12);
  border-bottom: 1px solid rgba(17, 17, 17, 0.12);
  padding: 10px 0;
}

.summary-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 5px 0;
  font-size: 0.88rem;
  font-weight: 400;
}

.art-summary-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 18px 0 22px;
  font-size: 0.95rem;
}

.art-total-figure {
  font-size: 1.65rem;
  font-weight: 300;
  letter-spacing: -0.03em;
  color: var(--primary);
}

.art-submit-btn {
  width: 100%;
}

.art-support-caption {
  margin-top: 14px;
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--text-secondary);
  text-align: center;
}

.form-alert-danger {
  background: var(--danger-bg);
  color: var(--danger);
  padding: 12px 16px;
  font-size: 0.86rem;
  font-weight: 500;
  margin-bottom: 20px;
}

.form-error {
  color: var(--danger);
  font-size: 0.8rem;
  font-weight: 500;
  margin-top: 5px;
}

/* Modal Confirmation */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17, 17, 17, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 200;
}

.modal-overlay.active {
  display: flex;
}

.modal-content {
  background: #ffffff;
  width: 100%;
  max-width: 390px;
  padding: 22px 20px;
  border-radius: 20px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.22);
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.art-modal-title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text-secondary);
}

.art-modal-summary {
  border-top: 1px solid rgba(17, 17, 17, 0.12);
  border-bottom: 1px solid rgba(17, 17, 17, 0.12);
  padding: 14px 0;
  margin-bottom: 18px;
  font-size: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.art-modal-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
}

.art-modal-row span {
  color: var(--text-secondary);
  font-weight: 300;
  flex-shrink: 0;
}

.art-modal-row strong {
  text-align: right;
  font-weight: 600;
  color: var(--text-main);
  word-break: break-word;
}

.art-modal-note-val {
  font-weight: 400 !important;
  font-style: italic;
}

.art-modal-tickets {
  border-top: 1px solid rgba(17, 17, 17, 0.10);
  padding-top: 10px;
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.art-modal-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: 10px;
  margin-top: 2px;
  border-top: 1px solid rgba(17, 17, 17, 0.12);
  font-weight: 600;
}

.art-modal-total strong {
  font-size: 1.3rem;
  color: var(--primary);
}

.art-modal-actions {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 10px;
  width: 100%;
}

.art-modal-btn {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 0 12px;
  font-size: 0.9rem;
}