/* === Компоненты UI === */

/* --- Кнопки --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.75rem;
    font-family: var(--font-body);
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-radius: var(--radius-button);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    white-space: normal;
    text-align: center;
    flex-wrap: wrap;
    line-height: 1.4;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn:hover::before {
    opacity: 1;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-copper));
    color: var(--color-bg-primary);
    box-shadow: 0 4px 16px rgba(201, 168, 76, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(201, 168, 76, 0.4);
    color: var(--color-bg-primary);
}

.btn--secondary {
    background: transparent;
    color: var(--color-accent-gold);
    border: 1px solid var(--color-accent-gold-dim);
}

.btn--secondary:hover {
    background: rgba(201, 168, 76, 0.1);
    border-color: var(--color-accent-gold);
    transform: translateY(-2px);
    color: var(--color-accent-gold);
}

.btn--ghost {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    border: var(--border-subtle);
}

.btn--ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.btn--sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-caption);
}

.btn--lg {
    padding: 1rem 2.5rem;
    font-size: var(--font-size-body);
}

@media (max-width: 500px) {
    .btn--lg {
        padding: 0.8rem 1.5rem;
    }
}

.btn__icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* --- Карточки --- */
.card {
    background: var(--color-bg-card);
    border: var(--border-card);
    border-radius: var(--radius-card);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent-gold-dim), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.card:hover {
    background: var(--color-bg-card-hover);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.card:hover::before {
    opacity: 1;
}

.card__image {
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

.card__image img {
    width: 100%;
    height: auto;
    transition: transform var(--transition-slow);
}

.card:hover .card__image img {
    transform: scale(1.05);
}

.card__title {
    font-family: var(--font-accent);
    font-size: var(--font-size-h3);
    margin-bottom: var(--spacing-sm);
}

.card__text {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.card__footer {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* --- Бейджи / Теги --- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-medium);
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge--complete {
    background: rgba(39, 174, 96, 0.15);
    color: var(--color-status-complete);
    border: 1px solid rgba(39, 174, 96, 0.3);
}

.badge--in-progress {
    background: rgba(243, 156, 18, 0.15);
    color: var(--color-status-in-progress);
    border: 1px solid rgba(243, 156, 18, 0.3);
}

.badge--upcoming {
    background: rgba(138, 138, 154, 0.15);
    color: var(--color-status-upcoming);
    border: 1px solid rgba(138, 138, 154, 0.3);
}

/* --- Теги --- */
.tag {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    font-size: var(--font-size-caption);
    color: var(--color-text-secondary);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

/* --- Header / Навигация --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    height: var(--header-height);
    background: var(--color-bg-overlay);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: var(--border-subtle);
    transition: background var(--transition-normal);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.header__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-accent);
    font-size: 1.3rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-accent-gold);
    letter-spacing: 0.05em;
}

.header__logo-icon {
    width: 32px;
    height: 32px;
}

.header__nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.header__link {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

.header__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent-gold);
    transition: width var(--transition-normal);
}

.header__link:hover,
.header__link--active {
    color: var(--color-accent-gold);
}

.header__link:hover::after,
.header__link--active::after {
    width: 100%;
}

.header__cta {
    margin-left: var(--spacing-md);
}

/* Burger menu */
.header__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 28px;
    padding: 4px 0;
    cursor: pointer;
}

.header__burger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.header__burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.header__burger.active span:nth-child(2) {
    opacity: 0;
}

.header__burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav */
.mobile-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-primary);
    z-index: var(--z-overlay);
    padding: var(--spacing-2xl) var(--container-padding);
    flex-direction: column;
    gap: var(--spacing-lg);
}

.mobile-nav.active {
    display: flex;
}

.mobile-nav__link {
    font-family: var(--font-accent);
    font-size: var(--font-size-h3);
    color: var(--color-text-secondary);
    padding: var(--spacing-md) 0;
    border-bottom: var(--border-subtle);
    transition: color var(--transition-fast);
}

.mobile-nav__link:hover {
    color: var(--color-accent-gold);
}

/* --- Footer --- */
.footer {
    background: var(--color-bg-secondary);
    border-top: var(--border-subtle);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer__inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer__brand {
    font-family: var(--font-accent);
    font-size: 1.3rem;
    color: var(--color-accent-gold);
    margin-bottom: var(--spacing-md);
}

.footer__desc {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    max-width: 300px;
}

.footer__heading {
    font-family: var(--font-accent);
    font-size: var(--font-size-small);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__link {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer__link:hover {
    color: var(--color-accent-gold);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: var(--border-subtle);
    font-size: var(--font-size-caption);
    color: var(--color-text-muted);
}

/* --- Тултипы --- */
.tooltip {
    position: relative;
}

.tooltip__content {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    padding: 0.75rem 1rem;
    min-width: 200px;
    max-width: 300px;
    background: var(--color-bg-card);
    border: var(--border-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    font-size: var(--font-size-caption);
    color: var(--color-text-secondary);
    text-align: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: all var(--transition-fast);
    z-index: var(--z-card);
}

.tooltip__content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--color-bg-card);
}

.tooltip:hover .tooltip__content {
    opacity: 1;
    visibility: visible;
}

/* --- Формы --- */
.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: var(--border-card);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-body);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent-gold-dim);
    box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* --- Адаптив --- */
@media (max-width: 1024px) {
    .footer__inner {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .header__nav {
        display: none;
    }

    .header__cta {
        display: none;
    }

    .header__burger {
        display: flex;
    }

    .footer__inner {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer__bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .btn--lg {
        width: 100%;
    }
}