:root {
    --bg-gradient: linear-gradient(145deg, #eef2ff 0%, #f8fbff 45%, #ffffff 100%);
    --surface: #ffffff;
    --surface-muted: #f4f6ff;
    --surface-subtle: #eef1fb;
    --primary: #4c5fd5;
    --primary-dark: #3543a9;
    --accent: #37c5ab;
    --text-main: #1f2a44;
    --text-muted: #5b6c8f;
    --border-soft: rgba(76, 95, 213, 0.12);
    --border-strong: rgba(31, 42, 68, 0.14);
    --radius-lg: 28px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --shadow-lg: 0 32px 60px -24px rgba(31, 42, 68, 0.25);
    --shadow-md: 0 18px 40px -18px rgba(31, 42, 68, 0.22);
    --shadow-sm: 0 6px 18px rgba(31, 45, 71, 0.10);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 56px 24px;
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-gradient);
    color: var(--text-main);
    line-height: 1.6;
}

.container {
    position: relative;
    width: min(1040px, 100%);
    padding: clamp(32px, 5vw, 64px);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    display: grid;
    gap: clamp(32px, 4vw, 48px);
    overflow: hidden;
}

.container::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(76, 95, 213, 0.12), transparent 55%),
                radial-gradient(circle at bottom left, rgba(55, 197, 171, 0.12), transparent 40%);
    pointer-events: none;
    z-index: 0;
}

.page-header {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 16px;
    max-width: 620px;
}

.page-header .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: fit-content;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(76, 95, 213, 0.12);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.page-header h1 {
    margin: 0;
    font-size: clamp(2rem, 3.4vw, 2.8rem);
    line-height: 1.2;
    color: var(--text-main);
    font-weight: 700;
}

.page-header p {
    margin: 0;
    font-size: 1.05rem;
    color: var(--text-muted);
}

form {
    position: relative;
    z-index: 1;
    display: grid;
    gap: clamp(32px, 3vw, 44px);
}

.form-grid {
    display: grid;
    gap: 20px;
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 0;
}

.form-row--full {
    grid-column: 1 / -1;
}

label {
    font-weight: 600;
    color: var(--text-main);
    font-size: 0.95rem;
}

input[type="text"],
input[type="tel"],
input[type="number"],
input[type="email"],
select,
textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-soft);
    background: var(--surface-muted);
    color: var(--text-main);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    box-shadow: inset 0 1px 2px rgba(31, 42, 68, 0.04);
    appearance: none;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: rgba(76, 95, 213, 0.4);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(76, 95, 213, 0.16);
}

input::placeholder,
textarea::placeholder {
    color: rgba(91, 108, 143, 0.58);
}

select {
    cursor: pointer;
}

input[type="number"] {
    -moz-appearance: textfield;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

#numParticipants {
    max-width: 220px;
}

input[type="checkbox"] {
    width: 20px;
    height: 20px;
    border-radius: 6px;
    border: 1.5px solid rgba(31, 42, 68, 0.25);
    background: #ffffff;
    cursor: pointer;
}

input[type="checkbox"]:checked {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(76, 95, 213, 0.16);
}

input[type="checkbox"]:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px rgba(76, 95, 213, 0.22);
}

#kursContainer select {
    background-image: linear-gradient(45deg, transparent 50%, rgba(79, 91, 213, 0.6) 50%),
                      linear-gradient(135deg, rgba(79, 91, 213, 0.6) 50%, transparent 50%);
    background-position: calc(100% - 20px) calc(50% + 3px), calc(100% - 15px) calc(50% + 3px);
    background-size: 7px 7px, 7px 7px;
    background-repeat: no-repeat;
    padding-right: 48px;
}

.kurs-info-box {
    display: grid;
    gap: 8px;
    padding: 20px;
    border-radius: var(--radius-md);
    background: var(--surface-muted);
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-sm);
    color: var(--text-main);
}

.kurs-label {
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--primary);
}

.kurs-info-box strong {
    font-weight: 700;
}

.kurs-meta {
    display: grid;
    gap: 4px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.kurs-dates {
    display: grid;
    gap: 1px;
    margin-top: 6px;
}

.kurs-dates-label {
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-main);
    font-weight: 600;
}

.kurs-dates-list {
    margin: 0;
    padding-left: 18px;
    color: var(--text-muted);
    display: grid;
    gap: 4px;
}

.participants-section {
    display: grid;
    gap: 18px;
}

.participants-section h2 {
    margin: 0 0 6px 0;
    font-size: 1.45rem;
    color: var(--text-main);
}

.participants-section p {
    margin: 0;
    color: var(--text-muted);
}

.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-soft);
    background: var(--surface);
}

#participantsTable {
    display: grid;
    gap: 16px;
}

#participantsTable table {
    width: 100%;
    border-collapse: collapse;
    min-width: 640px;
    background: transparent;
}

#participantsTable th,
#participantsTable td {
    padding: 14px 12px;
    font-size: 0.95rem;
    text-align: center;
    border-bottom: 1px solid var(--border-soft);
}

#participantsTable th {
    background: var(--surface-muted);
    color: var(--text-main);
    font-weight: 600;
}

#participantsTable tr:last-child td {
    border-bottom: none;
}

.participant-table-input {
    width: 100%;
    max-width: none;
}

.booking-terms {
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    padding: 24px;
    background: var(--surface-muted);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.booking-terms h2 {
    margin-top: 0;
    margin-bottom: 12px;
    font-size: 1.35rem;
    text-align: left;
}

.booking-terms-list {
    margin: 0 0 18px 0;
    padding-left: 20px;
    display: grid;
    gap: 10px;
    color: var(--text-muted);
}

.booking-terms-table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border-soft);
}

.booking-terms-table th,
.booking-terms-table td {
    padding: 16px 18px;
    font-size: 0.95rem;
    text-align: left;
}

.booking-terms-check-label {
    font-weight: 600;
    color: var(--text-main);
}

.booking-terms-check-cell {
    width: 120px;
    text-align: center;
}

#summary-container {
    border-radius: var(--radius-md);
    padding: 24px;
    background: linear-gradient(135deg, rgba(76, 95, 213, 0.08), rgba(55, 197, 171, 0.08));
    border: 1px solid rgba(76, 95, 213, 0.18);
    box-shadow: var(--shadow-sm);
    display: grid;
    gap: 12px;
}

#summary-header {
    margin: 0;
    font-size: 1.3rem;
    color: var(--text-main);
}

#summary {
    display: grid;
    gap: 8px;
    color: var(--text-main);
    font-weight: 500;
}

#summary .summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.65);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(76, 95, 213, 0.08);
}

#summary .summary-row > span:first-child {
    color: var(--text-muted);
    font-weight: 500;
}

#summary .summary-row strong {
    color: var(--text-main);
    font-weight: 600;
    text-align: right;
}

#summary .summary-note {
    display: block;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-weight: 400;
    font-size: 0.95rem;
    line-height: 1.6;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
}

button,
.button,
.button-34,
input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 999px;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #ffffff;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
    box-shadow: 0 16px 30px -18px rgba(76, 95, 213, 0.8);
}

button:hover,
.button:hover,
.button-34:hover,
input[type="submit"]:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 32px -16px rgba(53, 67, 169, 0.85);
}

button:active,
.button:active,
.button-34:active,
input[type="submit"]:active {
    transform: translateY(0);
    box-shadow: 0 10px 24px -14px rgba(53, 67, 169, 0.8);
}

button:focus-visible,
.button:focus-visible,
.button-34:focus-visible,
input[type="submit"]:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px rgba(76, 95, 213, 0.28);
}

p {
    margin: 0;
    color: var(--text-muted);
}

@media (min-width: 768px) {
    .form-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .form-grid .form-row:nth-child(odd) {
        padding-right: 6px;
    }

    .form-grid .form-row:nth-child(even) {
        padding-left: 6px;
    }
}

@media (max-width: 860px) {
    body {
        padding: 40px 16px;
    }

    .container {
        padding: 32px 24px;
    }

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

    .form-row--full {
        grid-column: auto;
    }

    #participantsTable table {
        min-width: unset;
    }
}

@media (max-width: 600px) {
    body {
        padding: 24px 14px;
    }

    .container {
        padding: 28px 20px;
    }

    .page-header .eyebrow {
        font-size: 0.75rem;
    }

    #summary .summary-row {
        flex-direction: column;
        align-items: flex-start;
    }

    #summary .summary-row strong {
        text-align: left;
    }
}

@media (max-width: 600px) {
    .table-wrapper { display: none; }
    .participant-card {
        display: block;
        background: var(--surface);
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-md);
        margin-bottom: 16px;
        padding: 16px;
        box-shadow: var(--shadow-sm);
    }
    .participant-card label {
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 4px;
        display: block;
    }
    .participant-card input[type="text"],
    .participant-card input[type="checkbox"] {
        margin-bottom: 8px;
        width: 100%;
    }
    .participant-card input[type="checkbox"] {
        width: auto;
    }
}

@media (min-width: 601px) {
    .participant-card {
        display: none;
    }
    .table-wrapper {
        display: block;
    }
}