/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container-narrow {
    max-width: var(--container-narrow);
}

/* Grid */
.grid {
    display: grid;
    gap: var(--space-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 992px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-light);
    z-index: 100;
    padding: 0 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.site-logo {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    text-decoration: none;
}

.site-logo:hover {
    color: var(--color-text);
}

.site-logo span {
    color: var(--color-accent);
}

/* Main Nav */
.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.main-nav a {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
    padding: var(--space-xs) 0;
}

.main-nav a:hover,
.main-nav a.current {
    color: var(--color-accent);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    margin: 5px 0;
    transition: all var(--transition-fast);
}

@media (max-width: 992px) {
    .nav-toggle {
        display: block;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--space-xl);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
        gap: var(--space-md);
    }

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

    .header-actions .btn {
        display: none;
    }
}

/* Footer */
.site-footer {
    background: var(--color-text);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
}

.footer-heading {
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-lg);
}

.footer-links a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-white);
}

.footer-social {
    display: flex;
    gap: var(--space-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
}

.footer-social a:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-xs);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }
}

/* Hero */
.hero {
    padding: var(--space-5xl) 0;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-accent-bg) 100%);
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero h1 {
    margin-bottom: var(--space-lg);
    font-size: var(--font-size-4xl);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-bottom: var(--space-2xl);
    line-height: var(--line-height-normal);
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
    background: var(--color-border-light);
}

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

.hero-features {
    display: flex;
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.hero-feature svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

@media (max-width: 992px) {
    .hero {
        padding: var(--space-3xl) 0;
    }
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero h1 {
        font-size: var(--font-size-2xl);
    }
    .hero-cta {
        justify-content: center;
    }
    .hero-image {
        max-width: 500px;
        margin: 0 auto;
    }
    .hero-features {
        justify-content: center;
        flex-wrap: wrap;
    }
}

/* Page header */
.page-header {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-warm);
    text-align: center;
}

.page-header h1 {
    margin-bottom: var(--space-md);
}

.page-header p {
    max-width: 600px;
    margin: 0 auto;
    font-size: var(--font-size-md);
}

/* About section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 3/4;
    background: var(--color-border-light);
}

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

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }
}

/* Steps section */
.steps-grid {
    display: grid;
    gap: var(--space-xl);
    max-width: 700px;
    margin: 0 auto;
}

/* Price table */
.price-table {
    width: 100%;
    border-collapse: collapse;
}

.price-table th,
.price-table td {
    padding: var(--space-md) var(--space-lg);
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
}

.price-table th {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.price-table td {
    font-size: var(--font-size-base);
}

.price-amount {
    font-weight: var(--font-weight-bold);
    color: var(--color-accent);
}

/* Certificates gallery */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-lg);
}

.certificate-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
    aspect-ratio: 3/4;
    background: var(--color-bg-warm);
}

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

/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Lang switcher */
.lang-switcher {
    display: flex;
    gap: 2px;
    background: var(--color-bg-warm);
    border-radius: var(--radius-sm);
    padding: 2px;
}

.lang-switcher a {
    padding: 0.375rem 0.625rem;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-light);
    border-radius: 4px;
    text-transform: uppercase;
}

.lang-switcher a:hover {
    color: var(--color-text);
}

.lang-switcher a.active {
    background: var(--color-white);
    color: var(--color-accent);
    box-shadow: var(--shadow-sm);
}