/* Base Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #0ea5e9;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-light: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-highlight: #eff6ff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 5px 15px -12px rgba(15, 23, 42, 0.4);
    --shadow-md: 0 12px 30px -16px rgba(15, 23, 42, 0.45);
    --shadow-lg: 0 25px 50px -20px rgba(15, 23, 42, 0.5);
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

section {
    padding: 80px 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    max-width: 720px;
    margin: 0.5rem auto 3rem;
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.75rem;
    border-radius: 999px;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-dark);
    border: 2px solid rgba(37, 99, 235, 0.35);
}

.btn-secondary:hover {
    background: rgba(37, 99, 235, 0.1);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 0.75rem 1.5rem;
}

.btn-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

/* Navigation Enhancements */
.navbar {
    transition: var(--transition);
}

.nav-logo span {
    font-weight: 700;
}

.nav-menu {
    transition: var(--transition);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

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

/* Hero Section */
.hero {
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 20%, rgba(37, 99, 235, 0.12), transparent 55%),
                radial-gradient(circle at 80% 30%, rgba(14, 165, 233, 0.12), transparent 60%);
    z-index: 0;
}

.hero-container {
    position: relative;
    z-index: 1;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.hero-actions .btn {
    border-radius: 12px;
}

.hero-metrics {
    margin-top: 1rem;
}

.metric-item {
    position: relative;
}

.metric-item::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 16px;
    border: 1px dashed rgba(37, 99, 235, 0.15);
    pointer-events: none;
}

.hero-highlights {
    position: relative;
}

.hero-highlight-card {
    position: relative;
    overflow: hidden;
}

.hero-highlight-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    border-radius: 4px 4px 0 0;
}

.hero-highlight-card.hero-mobile::before {
    background: linear-gradient(135deg, #22c55e, #16a34a);
}

.hero-highlight-card.hero-unicom::before {
    background: linear-gradient(135deg, #f97316, #ea580c);
}

.hero-highlight-card.hero-telecom::before {
    background: linear-gradient(135deg, #06b6d4, #0ea5e9);
}

/* Carrier Overview */
.carriers {
    background: var(--bg-primary);
}

.carriers-overview .section-title {
    font-size: 2.375rem;
}

.carriers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.carrier-card {
    background: #ffffff;
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(148, 163, 184, 0.25);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.carrier-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), transparent 60%);
    opacity: 0;
    transition: var(--transition);
}

.carrier-card:hover::after {
    opacity: 1;
}

.carrier-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.carrier-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 1.25rem;
    position: relative;
    z-index: 1;
}

.badge-mobile { background: linear-gradient(135deg, #22c55e, #16a34a); }
.badge-unicom { background: linear-gradient(135deg, #f97316, #ea580c); }
.badge-telecom { background: linear-gradient(135deg, #0ea5e9, #0284c7); }

.carrier-points {
    list-style: none;
    margin: 1.5rem 0;
    display: grid;
    gap: 0.75rem;
}

.carrier-points li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-secondary);
}

.carrier-points i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

.carrier-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.carrier-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    background: rgba(37, 99, 235, 0.08);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
}

.carrier-meta i {
    color: var(--primary-dark);
}

/* Carrier Focus Sections */
.carrier-focus {
    position: relative;
}

.focus-mobile {
    background: var(--bg-secondary);
}

.focus-unicom {
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.08) 0%, rgba(255, 255, 255, 0.9) 100%);
}

.focus-telecom {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.08) 0%, rgba(255, 255, 255, 0.9) 100%);
}

.focus-container {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 3rem;
    align-items: center;
}

.focus-content {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.focus-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 1rem;
    border-radius: 999px;
    color: #ffffff;
    font-weight: 600;
    font-size: 0.95rem;
}

.focus-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.focus-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.8rem;
    border-radius: 10px;
    background: rgba(37, 99, 235, 0.12);
    color: var(--primary-dark);
    font-size: 0.85rem;
    font-weight: 500;
}

.focus-list {
    list-style: none;
    display: grid;
    gap: 0.75rem;
    margin: 1rem 0 0;
}

.focus-list li {
    display: flex;
    gap: 0.65rem;
    align-items: flex-start;
    color: var(--text-secondary);
}

.focus-list i {
    color: var(--primary-dark);
    margin-top: 0.2rem;
}

.focus-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
}

.meta-item {
    background: rgba(37, 99, 235, 0.08);
    padding: 1.1rem 1.25rem;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.25);
}

.meta-item h4 {
    margin-bottom: 0.5rem;
}

.focus-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 0.5rem;
}

.focus-plan {
    position: relative;
}

.plan-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(148, 163, 184, 0.2);
    position: relative;
    overflow: hidden;
}

.plan-card::before {
    content: '';
    position: absolute;
    inset: -60% -40% auto;
    height: 50%;
    background: radial-gradient(circle at top, rgba(37, 99, 235, 0.18), transparent 60%);
    z-index: 0;
}

.plan-card > * {
    position: relative;
    z-index: 1;
}

.plan-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.plan-price {
    display: flex;
    align-items: baseline;
    gap: 0.15rem;
}

.currency {
    font-size: 1.5rem;
    color: var(--text-secondary);
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.period {
    font-size: 1rem;
    color: var(--text-secondary);
}

.plan-features {
    list-style: none;
    display: grid;
    gap: 0.75rem;
    margin: 1.5rem 0;
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-secondary);
}

.plan-features i {
    color: var(--success-color);
}

.plan-note {
    font-size: 0.95rem;
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    border-radius: 12px;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Compare Section */
.compare {
    background: var(--bg-secondary);
}

.compare-table {
    overflow-x: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.compare-table table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
}

.compare-table th,
.compare-table td {
    padding: 1.15rem;
    text-align: left;
    border-bottom: 1px solid rgba(148, 163, 184, 0.25);
    vertical-align: top;
}

.compare-table thead {
    background: rgba(37, 99, 235, 0.08);
}

.compare-table th {
    font-weight: 600;
    color: var(--text-primary);
}

.compare-table tbody tr:hover {
    background: rgba(37, 99, 235, 0.05);
}

.compare-note {
    margin-top: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Process Section */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.75rem;
}

.process-step {
    background: #ffffff;
    border-radius: var(--radius-md);
    padding: 2rem 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(148, 163, 184, 0.25);
    text-align: center;
    transition: var(--transition);
}

.process-step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.process-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(14, 165, 233, 0.12));
    color: var(--primary-dark);
    font-size: 1.5rem;
}

.process-step h3 {
    margin-bottom: 0.75rem;
}

.process-note {
    margin-top: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.process-note i {
    color: var(--primary-color);
}

/* Services Section */
.services {
    background: var(--bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.75rem;
}

.service-card {
    background: #ffffff;
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(148, 163, 184, 0.25);
    transition: var(--transition);
    text-align: left;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(37, 99, 235, 0.12);
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 1.25rem;
}

.service-card h3 {
    margin-bottom: 0.75rem;
}

/* Apply Section */
.apply {
    background: var(--bg-secondary);
}

.apply-content {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 2.5rem;
    align-items: flex-start;
}

.apply-form,
.contact-form {
    background: #ffffff;
    padding: 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(148, 163, 184, 0.2);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

label {
    font-weight: 600;
    color: var(--text-primary);
}

input,
select,
textarea {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    color: var(--text-primary);
    background-color: #ffffff;
    transition: var(--transition);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

textarea {
    resize: vertical;
}

.apply-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.apply-list {
    list-style: none;
    display: grid;
    gap: 1rem;
}

.apply-list li {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    color: var(--text-secondary);
}

.apply-list i {
    color: var(--primary-dark);
    margin-top: 0.2rem;
}

.apply-note {
    display: grid;
    gap: 0.75rem;
}

.apply-note p {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.apply-note i {
    color: var(--primary-dark);
}

/* FAQ Section */
.faq {
    background: var(--bg-primary);
}

.faq-list {
    display: grid;
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: #ffffff;
    border-radius: var(--radius-md);
    border: 1px solid rgba(148, 163, 184, 0.25);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}

.faq-question {
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    position: relative;
    font-size: 1.05rem;
    color: var(--text-primary);
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-item.active .faq-question::after {
    content: '−';
}

.faq-answer {
    display: none;
    padding: 0 1.5rem 1.5rem;
    color: var(--text-secondary);
}

.faq-item.active .faq-answer {
    display: block;
}

/* Contact Section */
.contact {
    background: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    align-items: start;
}

.contact-info {
    display: grid;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-item i {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(37, 99, 235, 0.12);
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.contact-item h4 {
    margin-bottom: 0.4rem;
}

/* Footer */
.footer {
    background: #0f172a;
    color: #ffffff;
    padding: 70px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #ffffff;
}

.footer-section p {
    color: rgba(148, 163, 184, 0.9);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.6rem;
}

.footer-section ul li a {
    color: rgba(148, 163, 184, 0.9);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: #ffffff;
}

.social-links {
    display: flex;
    gap: 0.75rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(148, 163, 184, 0.15);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    transform: translateY(-3px);
    background: var(--primary-color);
}

.newsletter-form {
    display: flex;
    gap: 0.6rem;
    margin-top: 0.75rem;
}

.newsletter-form input {
    flex: 1;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(148, 163, 184, 0.25);
    color: #ffffff;
}

.newsletter-form input::placeholder {
    color: rgba(226, 232, 240, 0.75);
}

.footer-bottom {
    border-top: 1px solid rgba(148, 163, 184, 0.15);
    padding-top: 1.75rem;
    text-align: center;
    color: rgba(148, 163, 184, 0.9);
}

/* Responsive Adjustments */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 2.6rem;
    }
}

@media (max-width: 1024px) {
    .focus-container,
    .apply-content {
        grid-template-columns: 1fr;
    }

    .focus-plan {
        order: -1;
    }

    .apply-info {
        order: -1;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .carrier-card,
    .plan-card,
    .service-card,
    .process-step,
    .faq-item,
    .apply-form,
    .contact-form {
        border-radius: 18px;
    }

    .metric-item strong {
        font-size: 1.3rem;
    }
}

@media (max-width: 576px) {
    .hero-metrics {
        grid-template-columns: 1fr;
    }

    .hero-highlights {
        grid-template-columns: 1fr;
    }

    .meta-item,
    .carrier-meta {
        grid-template-columns: 1fr;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-form .btn {
        width: 100%;
    }
}