/* ============================================================
   cookie-consent.css — Cookie consent banner + preferences modal
   Google Consent Mode v2 compatible (GA4 + AdSense via GTM)
   engsimapp.com

   Uses EngSim design tokens from base.css.
   Supports light and dark mode via body.dark.
   ============================================================ */

/* ── z-index layer ──────────────────────────────────────────── */
/* Banner sits above page content but below the nav (z:100)     */
/* Modal sits above everything                                   */
#engsim-consent-banner { z-index: 90; }
#engsim-consent-modal  { z-index: 200; }

/* ══════════════════════════════════════════════════════════════
   BANNER
   Fixed to the bottom of the viewport. Slides in on first visit.
   ══════════════════════════════════════════════════════════════ */
#engsim-consent-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, .10);
    padding: var(--space-md) var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    flex-wrap: wrap;
    /* Slide-up animation */
    transform: translateY(100%);
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
                opacity   0.35s ease;
    opacity: 0;
}

#engsim-consent-banner.consent-banner--visible {
    transform: translateY(0);
    opacity: 1;
}

#engsim-consent-banner.consent-banner--hidden {
    transform: translateY(110%);
    opacity: 0;
    pointer-events: none;
}

/* Text block */
.consent-banner__text {
    flex: 1;
    min-width: 240px;
}

.consent-banner__title {
    font-size: .875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
    font-family: var(--font-sans);
}

.consent-banner__body {
    font-size: .8125rem;
    color: var(--text-secondary);
    line-height: 1.55;
    font-family: var(--font-sans);
}

.consent-banner__body a {
    color: var(--brand-accent);
    text-decoration: underline;
}

/* Action buttons */
.consent-banner__actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
    flex-wrap: wrap;
}

/* ── Shared button base ─────────────────────────────────────── */
.consent-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    padding: 0 var(--space-md);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: .8125rem;
    font-weight: 600;
    cursor: pointer;
    border: 1.5px solid transparent;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease,
                transform 0.1s ease, box-shadow 0.15s ease;
    white-space: nowrap;
    text-decoration: none;
    line-height: 1;
}

.consent-btn:active {
    transform: scale(0.97);
}

/* Accept all — primary accent */
#consent-btn-accept-all {
    background: var(--brand-accent);
    color: #ffffff;
    border-color: var(--brand-accent);
}

#consent-btn-accept-all:hover {
    background: var(--brand-accent-h);
    border-color: var(--brand-accent-h);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.30);
}

/* Reject — ghost/outline */
#consent-btn-reject {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-strong);
}

#consent-btn-reject:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-strong);
}

/* Customize — text-only */
#consent-btn-customize {
    background: transparent;
    color: var(--brand-accent);
    border-color: transparent;
    padding: 0 var(--space-sm);
}

#consent-btn-customize:hover {
    text-decoration: underline;
}

/* Dark mode adjustments */
body.dark #engsim-consent-banner {
    box-shadow: 0 -4px 24px rgba(0, 0, 0, .45);
}

/* ══════════════════════════════════════════════════════════════
   MODAL — Preferences
   Centered overlay with three cookie-category toggles.
   ══════════════════════════════════════════════════════════════ */
#engsim-consent-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    /* Shown/hidden state */
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

#engsim-consent-modal.consent-modal--open {
    opacity: 1;
    pointer-events: auto;
}

/* Backdrop */
.consent-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
}

/* Dialog */
.consent-modal__dialog {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    /* Pop-in animation */
    transform: scale(0.94) translateY(8px);
    transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

#engsim-consent-modal.consent-modal--open .consent-modal__dialog {
    transform: scale(1) translateY(0);
}

/* Dialog header */
.consent-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.consent-modal__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-sans);
}

/* Close button */
.consent-modal__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    flex-shrink: 0;
}

.consent-modal__close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.consent-modal__close svg {
    pointer-events: none;
}

/* Dialog body */
.consent-modal__body {
    padding: var(--space-md) var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* ── Cookie category row ────────────────────────────────────── */
.consent-category {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border);
}

.consent-category:last-child {
    border-bottom: none;
}

.consent-category__info {
    flex: 1;
    min-width: 0;
}

.consent-category__name {
    font-size: .875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 3px;
    font-family: var(--font-sans);
}

.consent-category__desc {
    font-size: .8rem;
    color: var(--text-secondary);
    line-height: 1.5;
    font-family: var(--font-sans);
}

/* ── Toggle switch ──────────────────────────────────────────── */
.consent-toggle {
    position: relative;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Hide the native checkbox visually but keep it accessible */
.consent-toggle input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

/* Track */
.consent-toggle__track {
    display: block;
    width: 44px;
    height: 24px;
    border-radius: 12px;
    background: var(--border-strong);
    cursor: pointer;
    transition: background 0.2s ease;
    position: relative;
    flex-shrink: 0;
}

/* Thumb */
.consent-toggle__track::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .20);
    transition: transform 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Checked state */
.consent-toggle input[type="checkbox"]:checked + .consent-toggle__track {
    background: var(--brand-accent);
}

.consent-toggle input[type="checkbox"]:checked + .consent-toggle__track::after {
    transform: translateX(20px);
}

/* Focus ring (keyboard accessibility) */
.consent-toggle input[type="checkbox"]:focus-visible + .consent-toggle__track {
    outline: 2px solid var(--brand-accent);
    outline-offset: 2px;
}

/* Disabled/required state */
.consent-toggle input[type="checkbox"]:disabled + .consent-toggle__track {
    cursor: not-allowed;
    opacity: 0.75;
}

.consent-toggle input[type="checkbox"]:disabled:checked + .consent-toggle__track {
    background: var(--text-muted);
}

/* "Required" badge shown next to the necessary-cookies toggle */
.consent-required-badge {
    font-size: .7rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: .03em;
    text-transform: uppercase;
    margin-left: var(--space-xs);
    font-family: var(--font-sans);
    line-height: 24px; /* vertically align with toggle track */
}

/* Dialog footer */
.consent-modal__footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

#consent-modal-btn-reject {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-strong);
}

#consent-modal-btn-reject:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

#consent-modal-btn-save {
    background: var(--brand-accent);
    color: #ffffff;
    border-color: var(--brand-accent);
}

#consent-modal-btn-save:hover {
    background: var(--brand-accent-h);
    border-color: var(--brand-accent-h);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.30);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 600px) {
    #engsim-consent-banner {
        flex-direction: column;
        align-items: flex-start;
        padding: var(--space-md);
    }

    .consent-banner__actions {
        width: 100%;
        justify-content: flex-end;
    }

    .consent-modal__dialog {
        border-radius: var(--radius-lg);
    }

    .consent-modal__footer {
        flex-direction: column-reverse;
        align-items: stretch;
    }

    .consent-modal__footer .consent-btn {
        width: 100%;
        justify-content: center;
    }
}