/* ==========================================================================
   VLab-4000 — Components
   ========================================================================== */

/* =========================================================================
   BUTTONS
   ========================================================================= */

/* Base button */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    min-height: 44px; /* WCAG 2.5.5 touch target */
    padding: var(--space-12) var(--space-24);
    font-family: var(--font-heading);
    font-size: var(--text-body);
    font-weight: var(--weight-semibold);
    letter-spacing: 0.01em;
    line-height: 1.2;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition:
        background-color var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast),
        box-shadow var(--transition-fast),
        transform var(--transition-fast);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    -webkit-user-select: none;
    user-select: none;
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

.btn:active {
    transform: translateY(1px);
}

.btn:disabled,
.btn[aria-disabled="true"] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
    transform: none;
}

/* CTA / Primary button — Focus Orange */
.btn-primary {
    background-color: var(--color-cta);
    color: var(--white);
    border-color: var(--color-cta);
    box-shadow: 0 2px 8px rgba(251, 133, 0, 0.35);
}

.btn-primary:hover {
    background-color: var(--color-cta-hover);
    border-color: var(--color-cta-hover);
    box-shadow: 0 4px 16px rgba(251, 133, 0, 0.45);
    color: var(--white);
    text-decoration: none;
    transform: translateY(-1px);
}

.btn-primary:active {
    background-color: #C96B00;
    border-color: #C96B00;
    box-shadow: 0 1px 4px rgba(251, 133, 0, 0.3);
}

/* Secondary button — Medical Blue outline */
.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--white);
    text-decoration: none;
    transform: translateY(-1px);
}

/* Danger/Accent button — Arterial Red */
.btn-danger,
.btn-accent {
    background-color: var(--color-accent);
    color: var(--white);
    border-color: var(--color-accent);
    box-shadow: 0 2px 8px rgba(217, 4, 41, 0.3);
}

.btn-danger:hover,
.btn-accent:hover {
    background-color: var(--color-accent-light);
    border-color: var(--color-accent-light);
    color: var(--white);
    text-decoration: none;
    box-shadow: 0 4px 16px rgba(217, 4, 41, 0.4);
    transform: translateY(-1px);
}

/* Ghost button */
.btn-ghost {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-border);
}

.btn-ghost:hover {
    background-color: var(--color-bg-alt);
    border-color: var(--color-primary);
    text-decoration: none;
}

/* White / inverted button (for dark backgrounds) */
.btn-white {
    background-color: var(--white);
    color: var(--color-primary);
    border-color: var(--white);
}

.btn-white:hover {
    background-color: var(--color-bg-alt);
    color: var(--color-accent);
    text-decoration: none;
}

/* Button sizes */
.btn--sm {
    min-height: 36px;
    padding: var(--space-8) var(--space-16);
    font-size: var(--text-small);
    border-radius: var(--radius-sm);
}

.btn--lg {
    min-height: 52px;
    padding: var(--space-16) var(--space-32);
    font-size: var(--text-large);
    border-radius: var(--radius-lg);
}

.btn--xl {
    min-height: 60px;
    padding: var(--space-20) var(--space-48);
    font-size: var(--text-large);
    font-weight: var(--weight-bold);
    border-radius: var(--radius-lg);
}

.btn--full { width: 100%; }

.btn--pill {
    border-radius: var(--radius-pill);
}

/* Button with icon */
.btn__icon {
    width: 1.1em;
    height: 1.1em;
    flex-shrink: 0;
}

/* =========================================================================
   CARDS
   ========================================================================= */

.card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-32);
    box-shadow: var(--shadow-card);
    transition:
        box-shadow var(--transition-normal),
        transform var(--transition-normal),
        border-color var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-elevated);
    transform: translateY(-2px);
    border-color: var(--color-border);
}

.card--flat {
    box-shadow: none;
}

.card--flat:hover {
    transform: none;
    box-shadow: var(--shadow-card);
}

.card--tinted {
    background-color: var(--color-bg-alt);
    border-color: transparent;
}

.card--dark {
    background-color: var(--ink-900);
    color: var(--white);
    border-color: var(--ink-700);
}

.card--dark h2,
.card--dark h3,
.card--dark h4 {
    color: var(--white);
}

/* Accent border top */
.card--accent {
    border-top: 3px solid var(--color-accent);
}

.card--cta {
    border-top: 3px solid var(--color-cta);
}

/* Card parts */
.card__header {
    margin-bottom: var(--space-16);
    padding-bottom: var(--space-16);
    border-bottom: 1px solid var(--color-border-light);
}

.card__body {
    flex: 1;
}

.card__footer {
    margin-top: var(--space-24);
    padding-top: var(--space-16);
    border-top: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    gap: var(--space-12);
}

.card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background-color: var(--color-accent-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-16);
    flex-shrink: 0;
}

.card__icon--cta {
    background-color: var(--color-cta-subtle);
}

.card__icon svg,
.card__icon img {
    width: 24px;
    height: 24px;
}

.card__title {
    font-family: var(--font-heading);
    font-size: var(--text-h4);
    font-weight: var(--weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--space-8);
}

.card__desc {
    font-size: var(--text-body);
    color: var(--ink-500);
    line-height: var(--leading-normal);
}

/* =========================================================================
   BADGES
   ========================================================================= */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-12);
    font-family: var(--font-heading);
    font-size: var(--text-micro);
    font-weight: var(--weight-semibold);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-radius: var(--radius-pill);
    line-height: 1;
    white-space: nowrap;
}

.badge--red,
.badge--accent {
    background-color: var(--color-accent-subtle);
    color: var(--color-accent);
    border: 1px solid rgba(217, 4, 41, 0.2);
}

.badge--blue,
.badge--primary {
    background-color: rgba(43, 45, 66, 0.08);
    color: var(--color-primary);
    border: 1px solid rgba(43, 45, 66, 0.15);
}

.badge--orange,
.badge--cta {
    background-color: var(--color-cta-subtle);
    color: var(--color-cta);
    border: 1px solid rgba(251, 133, 0, 0.25);
}

.badge--green,
.badge--success {
    background-color: var(--color-success-subtle);
    color: var(--color-success);
    border: 1px solid rgba(31, 138, 92, 0.2);
}

.badge--gray {
    background-color: var(--color-bg-alt);
    color: var(--ink-500);
    border: 1px solid var(--color-border);
}

/* Solid badges */
.badge--solid-red {
    background-color: var(--color-accent);
    color: var(--white);
}

.badge--solid-blue {
    background-color: var(--color-primary);
    color: var(--white);
}

.badge--solid-orange {
    background-color: var(--color-cta);
    color: var(--white);
}

/* =========================================================================
   STEPS / PROCESS
   ========================================================================= */

.steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-32);
    position: relative;
}

.steps--horizontal {
    flex-direction: row;
    align-items: flex-start;
}

/* Vertical connector line */
.steps--vertical .step:not(:last-child) {
    position: relative;
}

.steps--vertical .step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 19px;
    top: 44px;
    bottom: calc(-1 * var(--space-32));
    width: 2px;
    background: linear-gradient(to bottom, var(--color-border), transparent);
}

.step {
    display: flex;
    gap: var(--space-20);
}

.step__counter {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--color-accent);
    color: var(--white);
    font-family: var(--font-heading);
    font-size: var(--text-small);
    font-weight: var(--weight-bold);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(217, 4, 41, 0.3);
}

.step__counter--blue {
    background-color: var(--color-primary);
    box-shadow: 0 2px 8px rgba(43, 45, 66, 0.3);
}

.step__counter--orange {
    background-color: var(--color-cta);
    box-shadow: 0 2px 8px rgba(251, 133, 0, 0.3);
}

.step__body {
    flex: 1;
    padding-top: var(--space-8);
}

.step__title {
    font-family: var(--font-heading);
    font-size: var(--text-h4);
    font-weight: var(--weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--space-8);
}

.step__desc {
    font-size: var(--text-body);
    color: var(--ink-500);
    line-height: var(--leading-normal);
}

/* =========================================================================
   COMPARISON TABLE
   ========================================================================= */

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-body);
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.comparison-table th,
.comparison-table td {
    padding: var(--space-16) var(--space-20);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.comparison-table thead th {
    background-color: var(--color-primary);
    color: var(--white);
    font-family: var(--font-heading);
    font-weight: var(--weight-semibold);
    font-size: var(--text-small);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-bottom: none;
}

.comparison-table thead th:first-child {
    border-top-left-radius: var(--radius-lg);
}

.comparison-table thead th:last-child {
    border-top-right-radius: var(--radius-lg);
}

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

.comparison-table tbody tr:nth-child(even) {
    background-color: var(--color-bg-alt);
}

.comparison-table tbody tr:hover {
    background-color: rgba(43, 45, 66, 0.04);
}

/* Highlighted column (recommended plan) */
.comparison-table .col--highlight {
    background-color: rgba(251, 133, 0, 0.08);
    position: relative;
}

.comparison-table thead .col--highlight {
    background-color: var(--color-cta);
}

/* Check / cross icons in cells */
.comparison-table .cell-check::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 8px;
    border-left: 2px solid var(--color-success);
    border-bottom: 2px solid var(--color-success);
    transform: rotate(-45deg) translateY(-3px);
    margin-right: var(--space-8);
}

.comparison-table .cell-cross::before {
    content: '×';
    color: var(--color-error);
    font-weight: var(--weight-bold);
    margin-right: var(--space-8);
}

/* =========================================================================
   ACCORDION / FAQ
   ========================================================================= */

.accordion {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.accordion__item {
    border-bottom: 1px solid var(--color-border);
}

.accordion__item:last-child {
    border-bottom: none;
}

.accordion__trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-16);
    padding: var(--space-20) var(--space-24);
    background-color: var(--color-bg);
    cursor: pointer;
    text-align: left;
    transition: background-color var(--transition-fast);
    border: none;
    font-family: var(--font-heading);
    font-size: var(--text-body);
    font-weight: var(--weight-semibold);
    color: var(--color-primary);
}

.accordion__trigger:hover {
    background-color: var(--color-bg-alt);
}

.accordion__trigger[aria-expanded="true"] {
    background-color: var(--color-bg-alt);
    color: var(--color-accent);
}

/* Animated chevron icon */
.accordion__icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-normal);
    color: var(--color-accent);
}

.accordion__icon::before,
.accordion__icon::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 2px;
    background-color: currentColor;
    border-radius: 1px;
    transition: transform var(--transition-normal);
}

.accordion__icon::before {
    transform: rotate(-45deg) translateX(3px);
}

.accordion__icon::after {
    transform: rotate(45deg) translateX(-3px);
}

.accordion__trigger[aria-expanded="true"] .accordion__icon::before {
    transform: rotate(45deg) translateX(3px);
}

.accordion__trigger[aria-expanded="true"] .accordion__icon::after {
    transform: rotate(-45deg) translateX(-3px);
}

/* Simple chevron alternative using transform */
.accordion__chevron {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform var(--transition-normal);
    color: var(--color-accent);
}

.accordion__trigger[aria-expanded="true"] .accordion__chevron {
    transform: rotate(180deg);
}

.accordion__panel {
    padding: 0 var(--space-24) var(--space-24);
    background-color: var(--color-bg-alt);
    display: none;
}

.accordion__panel[hidden] {
    display: none !important;
}

/* When JS removes hidden attribute */
.accordion__trigger[aria-expanded="true"] + .accordion__panel {
    display: block;
}

.accordion__panel p {
    margin-bottom: var(--space-12);
    color: var(--ink-500);
    line-height: var(--leading-normal);
}

.accordion__panel p:last-child {
    margin-bottom: 0;
}

/* =========================================================================
   ICON BAR
   ========================================================================= */

.icon-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-32);
}

.icon-bar--center {
    justify-content: center;
}

.icon-bar--between {
    justify-content: space-between;
}

.icon-bar__item {
    display: flex;
    align-items: center;
    gap: var(--space-12);
    font-size: var(--text-body);
    color: var(--ink-700);
}

.icon-bar__icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background-color: var(--color-accent-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.icon-bar__icon svg,
.icon-bar__icon img {
    width: 20px;
    height: 20px;
}

.icon-bar__label {
    font-size: var(--text-small);
    color: var(--ink-300);
    display: block;
}

.icon-bar__value {
    font-family: var(--font-heading);
    font-weight: var(--weight-semibold);
    color: var(--color-primary);
    display: block;
}

/* Logo / partner bar */
.logo-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-32);
    justify-content: center;
}

.logo-bar__item {
    opacity: 0.5;
    transition: opacity var(--transition-fast);
    max-height: 36px;
    width: auto;
    object-fit: contain;
    filter: grayscale(1);
}

.logo-bar__item:hover {
    opacity: 1;
    filter: none;
}

/* =========================================================================
   STAT NUMBER / KEY METRICS
   ========================================================================= */

.stat {
    text-align: center;
}

.stat__number {
    display: block;
    font-family: var(--font-mono);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: var(--weight-bold);
    color: var(--color-accent);
    line-height: 1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-8);
}

.stat__unit {
    font-family: var(--font-mono);
    font-size: 0.5em;
    color: var(--color-accent-light);
    vertical-align: super;
    letter-spacing: 0;
}

.stat__label {
    font-family: var(--font-heading);
    font-size: var(--text-small);
    font-weight: var(--weight-semibold);
    color: var(--ink-500);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.stat__sub {
    display: block;
    font-size: var(--text-micro);
    color: var(--ink-300);
    margin-top: var(--space-4);
}

/* Stats grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-48) var(--space-32);
}

/* =========================================================================
   ALERT / NOTICE BOXES
   ========================================================================= */

.alert {
    display: flex;
    gap: var(--space-12);
    padding: var(--space-16) var(--space-20);
    border-radius: var(--radius-md);
    border: 1px solid;
    font-size: var(--text-body);
    line-height: var(--leading-normal);
}

.alert--info {
    background-color: var(--color-info-subtle);
    border-color: var(--color-info);
    color: #1A4F7A;
}

.alert--success {
    background-color: var(--color-success-subtle);
    border-color: var(--color-success);
    color: #145C3D;
}

.alert--warning {
    background-color: var(--color-warning-subtle);
    border-color: var(--color-warning);
    color: #7A4F0E;
}

.alert--error {
    background-color: var(--color-error-subtle);
    border-color: var(--color-error);
    color: var(--color-error);
}

/* =========================================================================
   TAG / TOPIC CHIPS
   ========================================================================= */

.tag {
    display: inline-flex;
    align-items: center;
    padding: var(--space-4) var(--space-12);
    background-color: var(--color-bg-alt);
    color: var(--ink-700);
    font-size: var(--text-small);
    font-weight: var(--weight-medium);
    border-radius: var(--radius-pill);
    border: 1px solid var(--color-border);
    transition: background-color var(--transition-fast), color var(--transition-fast);
    cursor: default;
}

a.tag:hover {
    background-color: var(--color-primary);
    color: var(--white);
    border-color: var(--color-primary);
    text-decoration: none;
}

/* =========================================================================
   TOOLTIP
   ========================================================================= */

[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--ink-900);
    color: var(--white);
    font-family: var(--font-body);
    font-size: var(--text-micro);
    font-weight: var(--weight-regular);
    white-space: nowrap;
    padding: var(--space-8) var(--space-12);
    border-radius: var(--radius-sm);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: var(--z-dropdown);
}

[data-tooltip]:hover::before,
[data-tooltip]:focus::before {
    opacity: 1;
}

/* =========================================================================
   PROGRESS BAR
   ========================================================================= */

.progress {
    height: 8px;
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-pill);
    overflow: hidden;
}

.progress__bar {
    height: 100%;
    background-color: var(--color-accent);
    border-radius: var(--radius-pill);
    transition: width var(--transition-slow);
}

.progress__bar--cta    { background-color: var(--color-cta); }
.progress__bar--blue   { background-color: var(--color-primary); }
.progress__bar--green  { background-color: var(--color-success); }