/* Introductie Inplan Tool — Light theme (Physicum branding) */

:root {
    --bg: #ffffff;
    --bg-card: #fafafa;
    --bg-hover: #f0f0f0;
    --gold: #ceaa58;
    --gold-hover: #ba994d;
    --gold-light: rgba(206, 170, 88, 0.12);
    --green: #059669;
    --green-hover: #047857;
    --green-light: rgba(5, 150, 105, 0.08);
    --text: #191919;
    --text-secondary: #2f2f2f;
    --text-muted: rgba(0, 0, 0, 0.45);
    --border: #d0d0d0;
    --border-light: #e9e9e9;
}

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

body {
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.55;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 15px;
}

#app {
    max-width: 780px;
    margin: 0 auto;
    padding: 28px 20px 8px;
}

/* ─── Logo ─── */

.logo-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-bottom: 28px;
}

.logo {
    height: 36px;
    width: auto;
}

/* ─── Language toggle ─── */

.lang-toggle {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    gap: 0;
    border: 2px solid var(--border);
}

.lang-btn {
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    cursor: pointer;
    border: none;
    background: var(--bg);
    color: var(--text-muted);
    font-family: inherit;
    transition: all 0.2s;
}

.lang-btn:first-child {
    border-right: 1px solid var(--border);
}

.lang-btn.active {
    background: var(--text);
    color: #fff;
}

.lang-btn:not(.active):hover {
    background: var(--bg-hover);
    color: var(--text);
}

/* ─── Stappen indicator ─── */

.steps-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 6px;
    padding: 0 20px;
}

.step-dot {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    transition: all 0.3s;
    flex-shrink: 0;
}

.step-dot.active {
    background: var(--gold);
    border-color: var(--gold);
    color: #fff;
}

.step-dot.completed {
    background: var(--green);
    border-color: var(--green);
    color: #fff;
}

.step-line {
    height: 2px;
    flex: 1;
    background: var(--border-light);
    transition: background 0.3s;
}

.step-line.completed {
    background: var(--green);
}

.steps-labels {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 28px;
    padding: 0 8px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

/* ─── Wizard stappen ─── */

.wizard-step {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text);
    letter-spacing: -0.3px;
}

.step-subtitle {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 20px;
    opacity: 0.7;
}

/* ─── Tip banner ─── */

.tip-banner {
    background: var(--gold-light);
    border: 1px solid rgba(206, 170, 88, 0.35);
    border-left: 3px solid var(--gold);
    padding: 12px 16px;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.tip-banner strong {
    color: var(--gold-hover);
    font-weight: 700;
}

/* ─── Sessie picker (kalender + slots naast elkaar) ─── */

.session-picker {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

/* ─── Kalender ─── */

.calendar {
    background: var(--bg);
    padding: 20px;
    flex: 1;
    min-width: 0;
    margin-bottom: 0;
    border: 2px solid var(--border);
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.calendar-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    text-transform: capitalize;
}

.calendar-nav {
    background: none;
    border: 2px solid var(--border);
    color: var(--text);
    width: 36px;
    height: 36px;
    border-radius: 0;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.calendar-nav:hover {
    background: var(--bg-hover);
    border-color: var(--gold);
    color: var(--gold);
}

.calendar-nav:disabled {
    opacity: 0.25;
    cursor: not-allowed;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    text-align: center;
}

.calendar-grid .day-header {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 700;
    padding: 6px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.calendar-day {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 500;
    cursor: default;
    color: rgba(0, 0, 0, 0.2);
    transition: all 0.15s;
}

.calendar-day.available {
    color: var(--text);
    cursor: pointer;
    font-weight: 700;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
}

.calendar-day.available:hover {
    background: var(--bg-hover);
    border-color: var(--gold);
}

.calendar-day.available::after {
    content: '';
    position: absolute;
    bottom: 3px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--green);
}

.calendar-day.selected {
    background: var(--gold) !important;
    color: #fff !important;
    font-weight: 700;
    border-color: var(--gold) !important;
}

.calendar-day.selected::after {
    display: none;
}

.calendar-day.today {
    font-weight: 700;
    color: rgba(0, 0, 0, 0.25);
}

.calendar-day.other-month {
    opacity: 0.12;
}

.calendar-day.disabled-date {
    opacity: 0.12;
    cursor: not-allowed;
}

.calendar-day.disabled-date::after {
    display: none;
}

/* ─── Tijdsloten ─── */

.slots-container {
    flex: 0 0 220px;
    margin-top: 0;
    max-height: 420px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
    background: var(--bg);
    border: 2px solid var(--border);
    padding: 16px;
}

.slots-container::-webkit-scrollbar {
    width: 4px;
}

.slots-container::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

.slots-container:empty {
    display: none;
}

.slots-title {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: sticky;
    top: 0;
    background: var(--bg);
    padding-bottom: 8px;
    z-index: 1;
}

.slots-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.slot-btn {
    padding: 12px 8px;
    border: 2px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slot-btn:hover {
    border-color: var(--gold);
    background: var(--gold-light);
    color: var(--gold-hover);
}

.slot-btn.selected {
    border-color: var(--gold);
    background: var(--gold);
    color: #fff;
}

.slots-empty {
    color: var(--text-muted);
    font-size: 14px;
    padding: 20px 0;
    text-align: center;
}

.slots-loading {
    text-align: center;
    padding: 20px 0;
    color: var(--text-muted);
    font-size: 14px;
}

/* Loading state voor de kalender — getoond tijdens fetch naar Trainin */
.calendar-loading {
    background: var(--bg);
    border: 2px solid var(--border);
    padding: 20px;
    flex: 1;
    min-width: 0;
    min-height: 320px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    color: var(--text-muted);
    font-size: 14px;
}

.calendar-loading .spinner-sm {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-light);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Foutstaat voor de kalender — getoond wanneer de Trainin call faalt */
.calendar-error {
    background: var(--bg);
    border: 2px solid var(--border);
    padding: 24px 20px;
    flex: 1;
    min-width: 0;
    min-height: 320px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    text-align: center;
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
}

.calendar-error .calendar-error-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #e74c3c;
    color: #fff;
    font-size: 22px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.calendar-error .calendar-error-msg {
    max-width: 280px;
    color: var(--text-muted);
}

.calendar-error .calendar-error-retry {
    background: var(--gold);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease;
}

.calendar-error .calendar-error-retry:hover {
    background: var(--gold-dark, #a8842b);
}

/* Placeholder wanneer nog geen datum gekozen */
.slots-placeholder {
    color: var(--text-muted);
    font-size: 14px;
    text-align: center;
    padding: 28px 8px;
    line-height: 1.5;
}

/* ─── Samenvatting kaartjes ─── */

.selected-summary {
    margin-bottom: 16px;
}

.summary-card {
    background: var(--green-light);
    padding: 14px 16px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid rgba(5, 150, 105, 0.2);
    border-left: 4px solid var(--green);
}

.summary-card .check {
    color: var(--green);
    font-size: 20px;
    flex-shrink: 0;
    font-weight: 700;
}

.summary-card .info {
    flex: 1;
}

.summary-card .info .title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
}

.summary-card .info .detail {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ─── Overzicht ─── */

.overview-cards {
    margin: 20px 0;
}

.overview-card {
    background: var(--bg);
    padding: 18px 20px;
    margin-bottom: 12px;
    border: 2px solid var(--border);
    border-left: 4px solid var(--gold);
}

.overview-card .session-num {
    font-size: 11px;
    color: var(--gold-hover);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.overview-card .session-date {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
}

.overview-card .session-time {
    color: var(--text-secondary);
    font-size: 15px;
}

/* ─── Prijs ─── */

.price-box {
    background: var(--gold);
    padding: 22px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 24px 0 14px;
}

.price-label {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.price-amount {
    font-size: 30px;
    font-weight: 800;
    color: #fff;
}

.price-note {
    font-size: 14px;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 24px;
}

/* ─── Knoppen ─── */

.nav-buttons {
    margin-top: 24px;
    display: flex;
    gap: 12px;
    justify-content: center;
}

.btn {
    padding: 16px 32px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    font-family: inherit;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-next {
    background: var(--green);
    color: #fff;
    flex: 1;
    max-width: 520px;
}

.btn-next:not(:disabled):hover {
    background: var(--green-hover);
}

.btn-back {
    background: var(--bg);
    color: var(--text);
    border: 2px solid var(--border);
}

.btn-back:hover {
    background: var(--bg-hover);
    border-color: var(--text-muted);
}

.btn-confirm {
    width: 100%;
    padding: 18px;
    font-size: 17px;
    background: var(--green);
    color: #fff;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.8px;
}

.btn-confirm:not(:disabled):hover {
    background: var(--green-hover);
}

/* ─── Succes ─── */

.success-icon {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    background: var(--green);
    color: #fff;
    font-size: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

/* ─── Evaluatie sectie ─── */

.evaluation-section {
    margin-top: 32px;
}

.evaluation-card {
    background: var(--bg);
    padding: 24px;
    border: 2px solid var(--border);
}

.evaluation-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.evaluation-intro {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
    opacity: 0.7;
}

.evaluation-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input {
    padding: 14px 16px;
    border: 2px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-group input:focus {
    outline: none;
    border-color: var(--gold);
}

.btn-eval {
    margin-top: 4px;
    padding: 16px;
    background: var(--gold);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-family: inherit;
}

.btn-eval:hover {
    background: var(--gold-hover);
}

.btn-eval:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.evaluation-card.done {
    text-align: center;
    padding: 24px;
    border-left: 4px solid var(--green);
}

.evaluation-card.done .eval-check {
    color: var(--green);
    font-size: 30px;
    margin-bottom: 8px;
}

.evaluation-card.done p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

.evaluation-done {
    margin-top: 32px;
}

/* ─── Loading ─── */

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.92);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 100;
    backdrop-filter: blur(4px);
}

.loading-overlay p {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 600;
}

.spinner {
    width: 44px;
    height: 44px;
    border: 3px solid var(--border-light);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 14px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ─── Responsive ─── */

@media (max-width: 640px) {
    .session-picker {
        flex-direction: column;
    }

    .calendar,
    .calendar-loading,
    .calendar-error {
        width: 100%;
    }

    .slots-container {
        flex: none;
        width: 100%;
        max-height: none;
    }

    .slots-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    #app {
        padding: 16px 12px 90px;
    }

    h2 {
        font-size: 21px;
    }

    .calendar {
        padding: 16px;
    }

    .slot-btn {
        padding: 10px 6px;
        font-size: 14px;
    }

    .steps-labels {
        font-size: 10px;
    }
}