:root {
    --paper: #FAF6ED;
    --paper-raised: #FFFFFF;
    --ink: #2E0E1A;
    --ink-soft: #6B4A44;
    --kumkum: #8B3A2E;
    --kumkum-dark: #6E2C22;
    --marigold: #D9A625;
    --sacred-green: #3F6C51;
    --border: rgba(46, 14, 26, 0.12);
    --shadow: 0 1px 2px rgba(46, 14, 26, 0.05), 0 10px 28px rgba(46, 14, 26, 0.07);
}

.sb-hero {
    margin: -40px -20px 24px;
    overflow: hidden;
}

.sb-kolam-border {
    width: 100%;
    height: 20px;
    display: block;
}


.sb-hero img {
    width: 100%;
    aspect-ratio: 1280 / 858;
    object-fit: cover;
    display: block;
}

@media (min-width: 640px) {
    .sb-hero {
        margin: 0 0 28px;
        border-radius: 8px;
    }
    .sb-hero img {
        border-radius: 8px;
    }
}

.seva-booking {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: 'Work Sans', sans-serif;
    -webkit-font-smoothing: antialiased;
}

.seva-booking h1, .seva-booking h2, .seva-booking h3, .seva-booking h4, .seva-booking h5 {
    font-family: 'Work Sans', sans-serif;
    font-weight: 600;
    color: var(--ink);
    margin: 0 0 4px;
}

.sb-header {
    padding: 20px 24px;
    background: var(--paper-raised);
    position: relative;
    z-index: 1;
}
.sb-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--ink);
    font-family: 'Work Sans', sans-serif;
    font-size: 18px;
    font-weight: 600;
    max-width: 720px;
    margin: 0 auto;
}
.sb-brand em { font-style: normal; color: var(--ink-soft); font-weight: 400; }

.sb-main {
    max-width: 620px;
    margin: 0 auto;
    padding: 40px 20px 80px;
}

.sb-footer {
    max-width: 620px;
    margin: 0 auto;
    padding: 24px 20px 60px;
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--ink-soft);
    border-top: 1px solid var(--border);
}

.sb-steps {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin-bottom: 40px;
}
.sb-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    opacity: 0.4;
}
.sb-step .sb-flame {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1.5px solid var(--ink-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: var(--ink-soft);
    transition: all 0.25s ease;
}
.sb-step span { font-size: 11px; letter-spacing: 0.02em; color: var(--ink-soft); }
.sb-step.is-active { opacity: 1; }
.sb-step.is-active .sb-flame { border-color: var(--kumkum); background: var(--kumkum); color: #fff; }
.sb-step.is-active span { color: var(--ink); font-weight: 600; }
.sb-step.is-done { opacity: 1; }
.sb-step.is-done .sb-flame { border-color: var(--marigold); background: var(--marigold); color: #fff; }

.sb-card {
    background: var(--paper-raised);
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: var(--shadow);
    padding: 24px;
    margin-bottom: 20px;
}
.sb-card h5 { font-size: 17px; margin-bottom: 16px; }

.sb-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 28px 0 16px;
    color: var(--marigold);
    font-family: 'Work Sans', sans-serif;
    font-size: 15px;
    font-weight: 600;
    color: var(--ink);
}
.sb-divider::before, .sb-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.seva-booking label {
    display: block;
    font-size: 12px;
    color: var(--ink-soft);
    margin-bottom: 4px;
    font-weight: 500;
}
.seva-booking input, .seva-booking select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--paper);
    color: var(--ink);
    font-family: 'Work Sans', sans-serif;
    font-size: 14px;
    transition: border-color 0.15s ease;
    box-sizing: border-box;
}
.seva-booking input:focus, .seva-booking select:focus {
    outline: none;
    border-color: var(--kumkum);
    box-shadow: 0 0 0 3px rgba(193, 68, 14, 0.1);
}
.seva-booking input:disabled { background: var(--border); color: var(--ink-soft); }

.sb-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 4px; }
.sb-grid .full { grid-column: 1 / -1; }

.sb-btn {
    font-family: 'Work Sans', sans-serif;
    font-weight: 600;
    font-size: 14px;
    padding: 12px 24px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    transition: transform 0.1s ease, opacity 0.15s ease, background 0.15s ease;
}
.sb-btn:active { transform: scale(0.98); }
.sb-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.sb-btn-primary { background: var(--kumkum); color: #fff; }
.sb-btn-primary:hover:not(:disabled) { background: var(--kumkum-dark); }
.sb-btn-ghost { background: transparent; color: var(--ink-soft); border: 1px solid var(--border); }
.sb-btn-ghost:hover { border-color: var(--ink-soft); color: var(--ink); }
.sb-btn-chip {
    font-size: 13px;
    padding: 7px 16px;
    border-radius: 20px;
    border: 1px solid var(--marigold);
    background: #fff;
    color: var(--ink);
    cursor: pointer;
}
.sb-btn-chip:hover { background: var(--marigold); color: #fff; }

.sb-line {
    background: var(--paper-raised);
    border: 1px solid rgba(36, 27, 78, 0.16);
    border-radius: 6px;
    padding: 18px;
    margin-bottom: 12px;
    box-shadow: 0 1px 2px rgba(36, 27, 78, 0.04);
}
.sb-line-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--ink-soft);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.sb-line-amount {
    text-align: right;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 15px;
    font-weight: 500;
    margin-top: 10px;
    color: var(--ink);
}
.sb-gsb-notice {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 8px;
    background: #FDF3E4;
    border: 1px solid var(--marigold);
    padding: 10px 12px;
    border-radius: 4px;
    font-size: 12.5px;
    color: var(--kumkum-dark);
}
.sb-gsb-notice input { width: auto; }

.sb-banner {
    background: #EEF3EF;
    border: 1px solid var(--sacred-green);
    color: var(--sacred-green);
    padding: 12px 16px;
    border-radius: 4px;
    font-size: 13.5px;
    margin-bottom: 20px;
}
.sb-total-bar {
    background: var(--ink);
    color: #fff;
    border-radius: 6px;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 24px 0;
}
.sb-total-bar .sb-label { font-size: 12px; color: rgba(255,255,255,0.65); }
.sb-total-bar .sb-amount { font-family: 'IBM Plex Mono', monospace; font-size: 26px; }

@media (max-width: 560px) {
    .sb-grid { grid-template-columns: 1fr; }
    .sb-steps { gap: 16px; }
    .sb-total-bar { flex-direction: column; align-items: flex-start; gap: 12px; }
    .sb-total-bar .sb-btn { width: 100%; }

    .sb-sticky-row {
        flex-direction: column;
        align-items: stretch;
    }
    #add-line {
        width: 100%;
    }
}


.sb-sticky-toolbar {
    position: sticky;
    top: 12px;
    z-index: 10;
    background: var(--paper-raised);
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: var(--shadow);
    padding: 12px 16px;
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.sb-sticky-label {
    font-size: 12px;
    color: var(--ink-soft);
}
.sb-sticky-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}
.sb-sticky-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    flex: 1;
    min-width: 0;
}
#add-line {
    flex-shrink: 0;
}