/*
|==========================================================================
| COMPONENTS — Reusable UI Components
|==========================================================================
|
| References tokens from tokens.css — NO hardcoded values here.
| Each component is self-contained and uses CSS variables.
|
*/

/* ========================================================================
   BUTTONS
   ======================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

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

/* Variants */
.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-on-brand, #fff);
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: var(--color-on-brand, #fff);
}
.btn-secondary:hover {
    background-color: var(--color-secondary-hover);
}

.btn-accent {
    background-color: var(--color-accent);
    color: var(--color-text);
}
.btn-accent:hover {
    background-color: var(--color-accent-hover);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-on-brand, #fff);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}
.btn-ghost:hover {
    background-color: var(--color-surface-hover);
    color: var(--color-text);
}

/* Sizes */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
}
.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-base);
}

.btn-icon {
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border-radius: var(--radius-full);
}

.btn-block { width: 100%; }

/* ========================================================================
   CARDS
   ======================================================================== */
.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
}

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

.card-image {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
}

.card-body {
    padding: var(--space-5);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-2);
    color: var(--color-text);
}

.card-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.card-footer {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Card Variants */
.card-flat {
    border: none;
    box-shadow: none;
    background-color: var(--color-bg-alt);
}

.card-elevated {
    border: none;
    box-shadow: var(--shadow-md);
}

/* ========================================================================
   FORMS
   ======================================================================== */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select,
.modal-textarea,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-surface-raised, var(--color-surface));
    border: 1.5px solid var(--color-border-strong);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-input:hover,
.form-textarea:hover,
.form-select:hover,
.modal-textarea:hover,
textarea:hover {
    border-color: var(--color-primary);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus,
.modal-textarea:focus,
textarea:focus {
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px var(--color-primary-light);
    outline: none;
    color: var(--color-text);
}

.form-input::placeholder,
.form-textarea::placeholder,
.modal-textarea::placeholder,
textarea::placeholder,
input::placeholder {
    color: var(--color-text-muted);
    opacity: 0.9;
}

.modal-textarea,
.form-textarea {
    min-height: 110px;
    resize: vertical;
}

.form-error {
    margin-top: var(--space-1);
    font-size: var(--font-size-sm);
    color: var(--color-error);
}

.form-hint {
    margin-top: var(--space-1);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* Checkbox / Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 1.125rem;
    height: 1.125rem;
    accent-color: var(--color-primary);
}

/* ========================================================================
   BADGES
   ======================================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    line-height: 1;
}

.badge-primary   { background: var(--color-primary-light);  color: var(--color-primary); }
.badge-secondary { background: var(--color-secondary-light); color: var(--color-secondary); }
.badge-success   { background: var(--color-success-light);  color: var(--color-success); }
.badge-warning   { background: var(--color-warning-light);  color: var(--color-warning); }
.badge-error     { background: var(--color-error-light);    color: var(--color-error); }

/* ========================================================================
   ALERTS
   ======================================================================== */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    border: 1px solid transparent;
}

.alert-success {
    background: var(--color-success-light);
    color: var(--color-success);
    border-color: var(--color-success);
}

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

.alert-warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
    border-color: var(--color-warning);
}

.alert-info {
    background: var(--color-info-light);
    color: var(--color-info);
    border-color: var(--color-info);
}

/* ========================================================================
   MODAL
   ======================================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    background: var(--color-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-surface-raised, var(--color-surface));
    color: var(--color-text);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 500px;
    max-height: 85vh;
    overflow-y: auto;
    transform: scale(0.95) translateY(10px);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5);
    border-bottom: 1px solid var(--color-border);
}

.modal-body {
    padding: var(--space-5);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border);
}

/* ========================================================================
   NAVIGATION
   ======================================================================== */
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

/* ── Services Dropdown (pure CSS, no JS) ──────────────────────────────── */
.nav-dropdown {
    position: relative;
}
.nav-dropdown-trigger {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    cursor: default;
}
.nav-dropdown-trigger:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}
.nav-dropdown-panel {
    position: absolute;
    top: 100%;
    inset-inline-start: 0;
    min-width: 240px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg, 0 10px 30px rgba(0, 0, 0, 0.12));
    padding: var(--space-2);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
    z-index: 40;
}
.nav-dropdown:hover .nav-dropdown-panel,
.nav-dropdown:focus-within .nav-dropdown-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.nav-dropdown-panel a {
    display: block;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--font-size-sm);
}
.nav-dropdown-panel a:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

/* ── Mobile Navigation ────────────────────────────────────────────────── */
.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 85vw);
    z-index: var(--z-overlay);
    background: var(--color-surface);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    overflow-y: auto;
    padding: var(--space-6);
}

[dir="rtl"] .mobile-menu {
    right: auto;
    left: 0;
    transform: translateX(-100%);
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    z-index: calc(var(--z-overlay) - 1);
    background: var(--color-overlay);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.mobile-menu-overlay.open {
    opacity: 1;
    visibility: visible;
}

/* ========================================================================
   BREADCRUMB
   ======================================================================== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    padding: var(--space-4) 0;
}

.breadcrumb-item a {
    color: var(--color-text-secondary);
}

.breadcrumb-item a:hover {
    color: var(--color-primary);
}

.breadcrumb-separator {
    color: var(--color-border-strong);
}

.breadcrumb-item.active {
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
}

/* ========================================================================
   PAGINATION
   ======================================================================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    padding: var(--space-6) 0;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.page-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.page-link.active {
    background: var(--color-primary);
    color: var(--color-on-brand, #fff);
    border-color: var(--color-primary);
}

/* ========================================================================
   TAGS / CHIPS
   ======================================================================== */
.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.tag:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ========================================================================
   TOOLTIP
   ======================================================================== */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    color: var(--color-text-inverse);
    background: var(--color-text);
    border-radius: var(--radius-md);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: var(--z-tooltip);
    margin-bottom: var(--space-1);
}

[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}

/* ========================================================================
   SKELETON LOADING
   ======================================================================== */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-alt) 25%,
        var(--color-surface-hover) 50%,
        var(--color-bg-alt) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-pulse {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-text {
    height: 1rem;
    margin-bottom: var(--space-2);
}

.skeleton-title {
    height: 1.5rem;
    width: 60%;
    margin-bottom: var(--space-3);
}

.skeleton-image {
    aspect-ratio: 16/10;
}

/* ========================================================================
   DIVIDER
   ======================================================================== */
.divider {
    height: 1px;
    background: var(--color-border);
    margin-block: var(--space-6);
}

.divider-text {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.divider-text::before,
.divider-text::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

/* ========================================================================
   AVATAR
   ======================================================================== */
.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-full);
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    overflow: hidden;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-sm { width: 2rem; height: 2rem; font-size: var(--font-size-xs); }
.avatar-lg { width: 3.5rem; height: 3.5rem; font-size: var(--font-size-lg); }
.avatar-xl { width: 5rem; height: 5rem; font-size: var(--font-size-2xl); }

/* Tooltip inside header should appear below the element to avoid being cut off at the top of the viewport */
.site-header [data-tooltip]::after {
    bottom: auto;
    top: 100%;
    margin-bottom: 0;
    margin-top: var(--space-2);
}

/* ========================================================================
   GLOBAL HIGH-CONTRAST HOVER SYSTEM (SSOT UX Rules)
   Ensures text legibility across all interactive boxes, cards, and items in Light & Dark mode
   ======================================================================== */

.card:hover,
.template-card:hover,
.pricing-card:hover,
.option-card:hover,
.feature-card:hover,
.box:hover,
.vk-font-card:hover,
.swatch:hover,
.landing-countdown-item:hover,
[class*="card"]:hover,
[class*="box"]:hover,
[class*="tile"]:hover {
    position: relative;
    border-color: var(--color-border-strong);
}

.card:hover h1,
.card:hover h2,
.card:hover h3,
.card:hover h4,
.card:hover h5,
.card:hover h6,
.card:hover p,
.card:hover span,
.card:hover label,
.card:hover strong,
.template-card:hover h1,
.template-card:hover h2,
.template-card:hover h3,
.template-card:hover p,
.template-card:hover span,
.template-card:hover label,
.pricing-card:hover h1,
.pricing-card:hover h2,
.pricing-card:hover h3,
.pricing-card:hover p,
.pricing-card:hover span,
.option-card:hover h1,
.option-card:hover h2,
.option-card:hover h3,
.option-card:hover p,
.option-card:hover span,
.feature-card:hover h1,
.feature-card:hover h2,
.feature-card:hover h3,
.feature-card:hover p,
.feature-card:hover span,
.box:hover h1,
.box:hover h2,
.box:hover h3,
.box:hover p,
.box:hover span {
    color: var(--color-text);
    transition: color var(--transition-fast);
}

.btn-primary:hover,
.btn-secondary:hover,
.btn-accent:hover {
    color: var(--color-on-brand, #ffffff) !important;
}

.btn-primary:hover *,
.btn-secondary:hover *,
.btn-accent:hover * {
    color: inherit !important;
}

.vk-my-logos-link:hover {
    background: var(--color-primary) !important;
    border-color: var(--color-primary-dark) !important;
    color: var(--color-on-brand, #ffffff) !important;
}

/* ========================================================================
   DARK MODE — PREMIUM ELEVATION SYSTEM
   Glass surfaces, brand glow, and refined depth for a truly premium feel.
   ======================================================================== */

[data-theme="dark"] .card,
[data-theme="dark"] .card-elevated,
[data-theme="dark"] .modal {
    background: var(--color-surface-glass, var(--color-surface));
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    border-color: var(--color-border);
}

[data-theme="dark"] .card:hover,
[data-theme="dark"] .card-elevated:hover {
    box-shadow: var(--shadow-lg), var(--shadow-glow, none);
    border-color: var(--color-border-strong);
}

/* Ensure form inputs are clearly visible and high-contrast in dark */
[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="email"],
[data-theme="dark"] input[type="password"],
[data-theme="dark"] input[type="number"],
[data-theme="dark"] textarea,
[data-theme="dark"] select,
[data-theme="dark"] .form-input,
[data-theme="dark"] .form-textarea,
[data-theme="dark"] .form-select {
    background-color: var(--color-surface-raised);
    border-color: var(--color-border-strong);
    color: var(--color-text);
}

[data-theme="dark"] input::placeholder,
[data-theme="dark"] textarea::placeholder {
    color: var(--color-text-muted);
    opacity: 1;
}

/* Dark mode badges — ensure readable text */
[data-theme="dark"] .badge-primary   { background: var(--color-primary-light);  color: var(--color-primary); }
[data-theme="dark"] .badge-secondary { background: var(--color-secondary-light); color: var(--color-secondary); }
[data-theme="dark"] .badge-success   { background: var(--color-success-light);  color: var(--color-success); }
[data-theme="dark"] .badge-warning   { background: var(--color-warning-light);  color: var(--color-warning); }
[data-theme="dark"] .badge-error     { background: var(--color-error-light);    color: var(--color-error); }

/* Dark dropdown panels get glass effect */
[data-theme="dark"] .nav-dropdown-panel,
[data-theme="dark"] .professional-nav-dropdown__panel {
    background: var(--color-surface-glass, var(--color-surface));
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    border-color: var(--color-border);
}