/* =============================================================
   MERIDIAN — 15min Diagnostika  ·  5-step form
   All accent colors use --accent (#00d47e green), zero blue.
   ============================================================= */

/* ── Page wrapper ─────────────────────────────────────────── */
.diag-page {
    min-height: 100vh;
    background: var(--surface-0);
    padding-top: 72px; /* nav height */
    display: flex;
    flex-direction: column;
}

.diag-wrap {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: calc(100vh - 72px);
}

/* ── LEFT PANEL ─────────────────────────────────────────────── */
.diag-left {
    padding: clamp(3rem, 6vw, 5rem) clamp(2rem, 5vw, 5rem);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: sticky;
    top: 72px;
    align-self: start;
    min-height: calc(100vh - 72px);
}

.diag-left__h1 {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin: 0 0 var(--sp-5);
}

.diag-left__sub {
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: var(--leading-normal);
    margin: 0 0 var(--sp-8);
    max-width: 440px;
}

/* Benefits list */
.diag-benefits {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--sp-8);
    display: flex;
    flex-direction: column;
    gap: var(--sp-3);
}

.diag-benefits__item {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--text-primary);
}

.diag-benefits__check {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    min-width: 26px;
    border-radius: 50%;
    background: rgba(0, 212, 126, 0.12);
    border: 1.5px solid rgba(0, 212, 126, 0.28);
    color: var(--accent);
    flex-shrink: 0;
}

/* Info box "Co po vyplnění?" */
.diag-info-box {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    padding: var(--sp-6) var(--sp-7);
    max-width: 440px;
}

.diag-info-box__title {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--sp-2);
    letter-spacing: var(--tracking-snug);
}

.diag-info-box__text {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-normal);
    margin: 0;
}

/* ── RIGHT PANEL ─────────────────────────────────────────────── */
.diag-right {
    background: var(--surface-1);
    border-left: 1px solid var(--border);
    padding: 24px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    height: calc(100vh - 72px);
}

/* Progress bar */
.diag-progress {
    margin-bottom: var(--sp-5);
    flex-shrink: 0;
}

.diag-progress__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--sp-3);
}

.diag-progress__label {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.diag-progress__pct {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-secondary);
}

.diag-progress__bar {
    height: 4px;
    background: var(--surface-3);
    border-radius: var(--r-full);
    overflow: hidden;
}

.diag-progress__fill {
    height: 100%;
    background: var(--accent);
    border-radius: var(--r-full);
    transition: width 0.5s var(--ease-out);
    box-shadow: 0 0 12px rgba(0, 212, 126, 0.5);
}

/* ── Step container ─────────────────────────────────────────── */
.diag-steps {
    flex: 1;
    min-height: 0;
    position: relative;
    overflow: hidden;
}

.diag-step {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateX(40px);
    transition:
        opacity 0.35s var(--ease-out),
        transform 0.35s var(--ease-out);
}

.diag-step--active {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
}

.diag-step--out-left {
    opacity: 0;
    transform: translateX(-40px);
    pointer-events: none;
}

/* Step heading */
.diag-step__h2 {
    font-family: var(--font-display);
    font-size: clamp(1.3rem, 2.5vw, 1.7rem);
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: var(--tracking-snug);
    text-align: center;
    margin: 0 0 var(--sp-4);
    line-height: var(--leading-snug);
    flex-shrink: 0;
}

/* ── Option cards ─────────────────────────────────────────────── */
.diag-options {
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
    flex-shrink: 0;
    padding: 4px 2px;
}

.diag-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-3);
    padding: 7px 10px;
    background: var(--surface-2);
    border: 1.5px solid var(--border);
    border-radius: var(--r-lg);
    cursor: pointer;
    transition:
        border-color 0.2s var(--ease-out),
        background 0.2s var(--ease-out),
        transform 0.15s var(--ease-out),
        box-shadow 0.2s var(--ease-out);
    user-select: none;
}

.diag-option:hover {
    border-color: rgba(0, 212, 126, 0.4);
    background: rgba(0, 212, 126, 0.04);
    transform: translateX(3px);
}

.diag-option--selected {
    border-color: var(--accent);
    background: rgba(0, 212, 126, 0.08);
    box-shadow: 0 0 0 1px rgba(0, 212, 126, 0.15);
}

/* Option with icon (step 3) */
.diag-option__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: var(--r-md);
    background: rgba(0, 212, 126, 0.10);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.diag-option__body {
    flex: 1;
}

.diag-option__title {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--text-primary);
    display: block;
    letter-spacing: var(--tracking-snug);
}

.diag-option__sub {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    display: block;
    margin-top: 2px;
}

/* Radio circle */
.diag-option__radio {
    width: 22px;
    height: 22px;
    min-width: 22px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    transition:
        border-color 0.2s,
        background 0.2s;
    flex-shrink: 0;
}

.diag-option--selected .diag-option__radio {
    border-color: var(--accent);
    background: var(--accent);
}

.diag-option__radio::after {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--surface-0);
    opacity: 0;
    transform: scale(0.5);
    transition: opacity 0.2s, transform 0.2s var(--ease-spring);
}

.diag-option--selected .diag-option__radio::after {
    opacity: 1;
    transform: scale(1);
}

/* Check icon for selected (alternative style) */
.diag-option--selected .diag-option__radio {
    background: var(--accent);
    border-color: var(--accent);
}

/* ── Step 5: Contact form ─────────────────────────────────────── */

/* Form fills available height, scrolls only inside itself */
#step-5 .diag-options {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
    flex-shrink: 1;
}

.diag-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 8px;
}

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

.diag-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.diag-field__label {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.diag-field__label span {
    color: var(--accent);
}

.diag-field__wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.diag-field__icon {
    position: absolute;
    left: var(--sp-4);
    color: var(--text-muted);
    pointer-events: none;
    flex-shrink: 0;
}

.diag-field__input {
    width: 100%;
    background: var(--surface-2);
    border: 1.5px solid var(--border);
    border-radius: var(--r-lg);
    padding: 8px 12px 8px 36px;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    color: var(--text-primary);
    transition: border-color 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
    outline: none;
}

.diag-field__input::placeholder {
    color: var(--text-muted);
}

.diag-field__input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 212, 126, 0.12);
}

.diag-form-note {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin: 6px 0 10px;
    line-height: var(--leading-normal);
}

/* ── Navigation row ────────────────────────────────────────── */
.diag-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--sp-4);
    flex-shrink: 0;
}

.diag-nav--right {
    justify-content: flex-end;
}

.diag-btn-back {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--sp-2) 0;
    transition: color 0.2s;
}

.diag-btn-back:hover { color: var(--text-primary); }

/* Submit / Next auto-advance message */
.diag-auto-msg {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-align: center;
    margin-top: var(--sp-3);
}

/* ── Success state ─────────────────────────────────────────── */
.diag-success {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--sp-12) var(--sp-8);
    gap: var(--sp-5);
}

.diag-success--show { display: flex; }

.diag-success__icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(0, 212, 126, 0.12);
    border: 2px solid rgba(0, 212, 126, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    animation: diag-pop 0.5s var(--ease-spring);
}

@keyframes diag-pop {
    from { transform: scale(0.5); opacity: 0; }
    to   { transform: scale(1);   opacity: 1; }
}

.diag-success__h2 {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 800;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: var(--tracking-snug);
}

.diag-success__text {
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin: 0;
    line-height: var(--leading-normal);
}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 900px) {
    .diag-wrap {
        grid-template-columns: 1fr;
        min-height: unset;
    }
    .diag-left {
        position: static;
        min-height: unset;
        padding-bottom: 0;
    }
    .diag-right {
        border-left: none;
        border-top: 1px solid var(--border);
        height: auto;
        min-height: 70vh;
    }
    .diag-steps { min-height: 55vh; }
}

@media (max-width: 480px) {
    .diag-form-grid { grid-template-columns: 1fr; }
    .diag-left__h1 { font-size: 2.2rem; }
}