:root {
    /* Sophisticated Color Palette - Deepened for RhinoForm2026 */
    --primary-h: 339;
    --primary-s: 55%;
    --primary-l: 37%;
    --primary-color: #912a4e;
    --secondary-color: #6e1b38;
    --accent-color: #fdf2f8;
    --text-color: #1a0a0f;
    --label-color: #4b1a2a;
    --border-color: #912a4e;
    --bg-light: #fff5f7;
    --white: #ffffff;
    --required-color: #e11d48;
    --summary-bg: #1e293b;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --border-radius: 16px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-color);
    line-height: 1.6;
    padding: 40px 20px;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--white);
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

/* Subtle background accent */
.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

/* Header Styling */
.header {
    margin-bottom: 40px;
    text-align: center;
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.nav-row {
    display: flex;
    justify-content: flex-start;
}

.btn-nav {
    background: var(--primary-color);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: 2px solid var(--primary-color);
}

.btn-nav:hover {
    background: transparent;
    color: var(--primary-color);
}

.form-title {
    font-size: clamp(2rem, 5vw, 2.8rem);
    font-weight: 900;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: -1.5px;
    margin-bottom: 15px;
    line-height: 1.1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.form-subtitle {
    display: block;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--secondary-color);
    letter-spacing: 2px;
    margin-top: 5px;
    text-transform: capitalize;
}

.header-banner {
    width: 100%;
    margin-top: 10px;
}

.banner-img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: block;
}

/* Pricing Table Styling */
.pricing-table-section {
    margin-bottom: 40px;
    overflow-x: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    position: relative;
}

.pricing-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    background: var(--white);
    min-width: 600px;
}

.pricing-table thead th {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 16px 20px;
    font-weight: 700;
    border: 1px solid var(--white);
}

.pricing-table tbody td {
    padding: 14px 20px;
    border: 1px solid var(--border-color);
    color: var(--primary-color);
    font-weight: 500;
}

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

.pricing-table tbody tr:nth-child(even) {
    background-color: #fce7eb;
}

.pricing-table tbody tr:hover {
    background-color: #f8fafc;
    transition: background 0.2s ease;
}

.disabled-tier {
    opacity: 0.4;
    filter: grayscale(100%);
    pointer-events: none;
    background-color: #f1f5f9 !important;
}

/* Form Sections */
.registration-form {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

/* Custom Radio Tiers */
.delegate-type-row {
    background: var(--accent-color);
    padding: 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.tier-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.group-label {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--summary-bg);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-left: 4px solid var(--secondary-color);
    padding-left: 12px;
}

.tier-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    margin: 10px 0;
}

.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: 1rem;
    color: var(--primary-color);
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.radio-label:hover {
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

.radio-label input[type="radio"] {
    width: 20px;
    height: 20px;
    accent-color: var(--secondary-color);
    cursor: pointer;
}

/* Form Grid */
.form-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group.full-width {
    grid-column: span 3;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--label-color);
    margin-left: 4px;
}

.section-label {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
    display: block;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 8px;
}

.required {
    color: var(--required-color);
}

/* Inputs, Selects, Textareas */
input,
select,
textarea {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    background-color: var(--bg-light);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--text-color);
    width: 100%;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    background-color: var(--white);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

/* intl-tel-input alignment */
.iti {
    width: 100%;
}

.iti__country-list {
    z-index: 100;
}

/* Validation Styles */
label.error {
    color: var(--required-color);
    font-size: 0.85rem;
    margin-top: 4px;
    display: block;
    font-weight: 500;
}

input.error,
select.error,
textarea.error {
    border-color: var(--required-color) !important;
}

input.error:focus,
select.error:focus,
textarea.error:focus {
    box-shadow: 0 0 0 4px rgba(225, 29, 72, 0.1);
}

/* Categories Checkbox Grid */
.checkbox-group-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    background: var(--white);
    padding: 24px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
}

.full-width-checkbox {
    grid-column: span 2;
    background-color: #f8fafc;
    border: 1px dashed var(--border-color);
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: background 0.2s ease;
}

.checkbox-item:hover {
    background-color: var(--bg-light);
}

.checkbox-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--secondary-color);
    cursor: pointer;
}

/* Validation Styles */
input.error,
select.error,
textarea.error {
    border-color: var(--required-color) !important;
    background-color: #fffafb !important;
}

.pricing-table thead th.intl-column {
    border-left: 5px solid var(--secondary-color) !important;
    background-color: var(--secondary-color);
}


label.error {
    color: var(--required-color);
    font-size: 0.8rem;
    font-weight: 500;
    margin-top: 4px;
    margin-left: 4px;
    display: block;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.checkbox-group-grid label.error {
    grid-column: span 2;
    margin-top: 10px;
    padding: 12px;
    background: #fef2f2;
    border: 1px solid #fee2e2;
    border-radius: 8px;
}


/* Summary Dashboard Card */
.summary-card {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: var(--white);
    padding: 40px;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

.summary-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: #ffd700;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
}

.summary-row span:first-child {
    opacity: 0.7;
    font-weight: 500;
}

.amount-val {
    font-weight: 700;
    font-size: 1.2rem;
}

.summary-total {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding-top: 30px;
    border-top: 1px dashed rgba(255, 255, 255, 0.2);
    margin-top: 10px;
}

.total-label {
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.9;
}

.total-val {
    font-size: 2.8rem;
    font-weight: 900;
    color: #ffd700;
    line-height: 1;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.total-val small {
    font-size: 1rem;
    font-weight: 600;
    margin-left: 5px;
    opacity: 0.8;
}

.gst-note {
    font-size: 0.85rem;
    opacity: 0.5;
    text-align: right;
    font-style: italic;
}

/* Payment Image Animation */
.payment-image-container {
    background: var(--white);
    border: 2px dashed #cbd5e1;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    margin: 10px 0 20px 0;
    animation: fadeInScale 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.payment-qr {
    max-width: 100%;
    width: 280px;
    height: auto;
    transition: transform 0.3s ease;
}

.payment-qr:hover {
    transform: scale(1.05);
}

/* Confirmation Box */
.confirmation-box {
    background: #f1f5f9;
    padding: 20px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

/* Payment Section Redesign */
.payment-details-container {
    margin-top: 20px;
    animation: fadeInScale 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.payment-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.payment-methods-title {
    margin-bottom: 16px;
    font-size: 1.1rem;
    font-weight: 700;
    padding-bottom: 8px;
    display: inline-block;
    border-bottom: 3px solid transparent;
}

.payment-methods-title.indian {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.payment-methods-title.intl {
    color: #2563eb;
    border-color: #2563eb;
}

.payment-info {
    font-size: 0.95rem;
    color: #334155;
    line-height: 1.8;
    background: #f8fafc;
    padding: 15px;
    border-radius: 10px;
    border-left: 4px solid #cbd5e1;
}

.payment-info p strong {
    color: #1e293b;
    width: 140px;
    display: inline-block;
}

.qr-wrapper {
    margin-top: 25px;
    text-align: center;
    padding: 20px;
    background: #fff;
    border: 2px dashed #e2e8f0;
    border-radius: 12px;
}

.qr-instruction {
    color: #64748b;
    font-weight: 700;
    margin-bottom: 15px;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.payment-qr {
    width: 250px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.payment-qr:hover {
    transform: translateY(-5px) scale(1.02);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    cursor: pointer;
    color: var(--label-color);
    line-height: 1.4;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    min-width: 20px;
    /* Prevent shrinking */
    accent-color: var(--secondary-color);
    margin-top: 2px;
}

/* Button & Bottom */
.button-row {
    display: flex;
    justify-content: center;
}

.btn-submit {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--white);
    border: none;
    padding: 16px 60px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.45);
}

.btn-submit:active {
    transform: translateY(0);
}

.copyright {
    text-align: center;
    padding: 30px;
    font-size: 0.9rem;
    background: transparent;
    color: var(--label-color);
    margin-top: 20px;
}



/* Responsive refinements */
@media (max-width: 1024px) {
    .container {
        margin: 20px;
        padding: 30px;
    }
}

@media (max-width: 900px) {
    .form-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    body {
        padding: 10px 0;
    }

    .container {
        margin: 10px auto;
        width: calc(100% - 20px);
        padding: 20px;
        border-radius: 8px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-group.full-width {
        grid-column: span 1;
    }

    .radio-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .checkbox-group-grid {
        grid-template-columns: 1fr;
        padding: 15px;
    }


    .summary-card {
        padding: 20px;
    }

    .total-val {
        font-size: 1.6rem;
    }

    /* Table mobile hint */
    .pricing-table-section::after {
        content: '← Swipe horizontally to view full table →';
        display: block;
        text-align: center;
        font-size: 0.75rem;
        color: var(--label-color);
        margin-top: 10px;
        font-style: italic;
    }

    .pricing-table thead th,
    .pricing-table tbody td {
        padding: 10px;
    }

    /* Mobile adjustments for payment section */
    .payment-card {
        padding: 15px;
    }

    .payment-info {
        padding: 12px;
    }

    .payment-info p {
        display: flex;
        flex-direction: column;
        gap: 2px;
        margin-bottom: 10px;
    }

    .payment-info p strong {
        width: 100%;
        font-size: 0.85rem;
        color: #64748b;
    }

    .qr-wrapper {
        padding: 15px 10px;
    }

    .payment-qr {
        width: 100%;
        max-width: 200px;
    }
}

@media (max-width: 480px) {
    .form-title {
        font-size: 1.5rem;
    }

    .btn-submit {
        width: 100%;
        padding: 14px 20px;
    }

    .summary-row {
        font-size: 0.9rem;
    }

    .total-label {
        font-size: 1.2rem;
    }

    .summary-total {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
}

/* Extra small screens (e.g., iPhone SE/320px) */
@media (max-width: 360px) {
    .container {
        margin: 5px auto;
        width: calc(100% - 10px);
        padding: 15px 10px;
    }

    .form-title {
        font-size: 1.35rem;
    }

    .form-subtitle {
        font-size: 0.9rem;
    }

    .checkbox-group-grid {
        padding: 12px;
        gap: 10px;
    }

    .checkbox-item {
        padding: 8px;
        font-size: 0.92rem;
        gap: 8px;
    }

    .pricing-table-section {
        margin-left: -5px;
        margin-right: -5px;
        border-radius: 4px;
    }
}