:root {
    --color-bg: #f4f7fb;
    --color-primary: #0c1d3e;
    --color-secondary: #102857;
    --color-accent: #0d6efd;
    --color-light: #ffffff;
    --color-muted: #6c7a93;
    --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Merriweather', 'Times New Roman', serif;
    --shadow-sm: 0 10px 30px rgba(12, 29, 62, 0.08);
    --shadow-md: 0 20px 45px rgba(12, 29, 62, 0.15);
    --transition: all 0.3s ease;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--color-secondary);
    background-color: var(--color-bg);
    line-height: 1.6;
    scroll-behavior: smooth;
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover,
a:focus {
    text-decoration: underline;
}

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

.container {
    width: min(1120px, 92vw);
    margin: 0 auto;
}

.section {
    padding: clamp(64px, 8vw, 96px) 0;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto clamp(48px, 7vw, 64px);
}

.section-header h2 {
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 40px);
    margin-bottom: 16px;
    color: var(--color-primary);
}

.section-header p {
    color: var(--color-muted);
    margin: 0;
}

.section-eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 12px;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: rgba(244, 247, 251, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(12, 29, 62, 0.08);
    transition: var(--transition);
}

.site-header.header-scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 6px 20px rgba(12, 29, 62, 0.12);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

.brand-logo {
    height: 48px;
    width: auto;
}

.main-nav {
    position: relative;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    position: relative;
    transition: var(--transition);
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
    content: "";
    position: absolute;
    left: 0;
}

.nav-toggle-icon::before {
    top: -7px;
}

.nav-toggle-icon::after {
    top: 7px;
}

.nav-list {
    display: flex;
    gap: clamp(16px, 2vw, 32px);
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.nav-list a {
    font-weight: 500;
    color: var(--color-primary);
    padding: 8px;
    border-radius: 999px;
    transition: var(--transition);
}

.nav-list a:hover,
.nav-list a:focus {
    background-color: rgba(13, 110, 253, 0.1);
    text-decoration: none;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: 999px;
    border: 2px solid transparent;
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-light);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: #0b5bc7;
}

.btn-outline {
    background-color: transparent;
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-outline:hover,
.btn-outline:focus {
    background-color: rgba(13, 110, 253, 0.12);
}

.btn-secondary {
    background-color: var(--color-primary);
    color: var(--color-light);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: #081432;
}

.btn-light {
    background-color: var(--color-light);
    color: var(--color-primary);
    border-color: var(--color-light);
}

.btn-light:hover,
.btn-light:focus {
    background-color: #e8eef9;
}

/* Hero */
.hero {
    position: relative;
    overflow: hidden;
    padding: clamp(80px, 12vw, 140px) 0;
    background: linear-gradient(135deg, rgba(12, 29, 62, 0.85), rgba(11, 52, 108, 0.75)), url('https://images.unsplash.com/photo-1520607162513-77705c0f0d4a?auto=format&fit=crop&w=1600&q=80') center/cover fixed;
    color: var(--color-light);
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(12, 29, 62, 0.4);
    z-index: -1;
}

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

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 32px;
}

.hero-text {
    max-width: 720px;
    margin: 0 auto;
}

.hero-text h1 {
    font-family: var(--font-serif);
    font-size: clamp(36px, 5vw, 56px);
    margin: 16px 0;
    color: var(--color-light);
}

.eyebrow {
    letter-spacing: 0.2em;
    text-transform: uppercase;
    font-weight: 600;
    font-size: 13px;
}

.hero-subtitle {
    margin-bottom: 32px;
    color: rgba(255, 255, 255, 0.85);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
}

.hero-visual img {
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

/* About */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.about-card {
    background-color: var(--color-light);
    padding: 32px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.about-card h3 {
    margin-top: 0;
    color: var(--color-primary);
}

.about-card p {
    margin-bottom: 0;
    color: var(--color-muted);
}

/* Practice */
.practice-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.practice-card {
    background-color: var(--color-light);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

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

.practice-card img {
    height: 200px;
    object-fit: cover;
}

.practice-content {
    padding: 24px;
}

.practice-content h3 {
    margin-top: 0;
    color: var(--color-primary);
}

.practice-content p {
    margin-bottom: 0;
    color: var(--color-muted);
}

/* Services */
.services {
    background-color: var(--color-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    align-items: center;
}

.services-intro h2 {
    font-family: var(--font-serif);
    color: var(--color-primary);
}

.services-list {
    list-style: none;
    padding: 0;
    margin: 24px 0 0;
    display: grid;
    gap: 16px;
}

.services-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--color-secondary);
}

.services-list i {
    color: var(--color-accent);
    margin-top: 4px;
}

.services-media img {
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

/* Approach */
.approach {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(244, 247, 251, 1));
}

.timeline {
    display: grid;
    gap: 24px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 72px 1fr;
    align-items: start;
    gap: 24px;
    background-color: var(--color-light);
    padding: 24px;
    border-radius: 18px;
    box-shadow: var(--shadow-sm);
}

.timeline-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: rgba(13, 110, 253, 0.12);
    color: var(--color-accent);
    font-size: 24px;
}

.timeline-content h3 {
    margin: 0 0 12px;
    color: var(--color-primary);
}

.timeline-content p {
    margin: 0;
    color: var(--color-muted);
}

/* Insights */
.insights {
    background: var(--color-light);
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 48px;
    align-items: start;
}

.insights-cards {
    display: grid;
    gap: 24px;
}

.insight-card {
    background-color: var(--color-bg);
    padding: 24px;
    border-radius: 18px;
    border: 1px solid rgba(12, 29, 62, 0.08);
    transition: var(--transition);
}

.insight-card:hover {
    border-color: rgba(13, 110, 253, 0.4);
    box-shadow: var(--shadow-sm);
}

.insight-card h3 {
    margin-top: 0;
    color: var(--color-primary);
}

.insight-card p {
    color: var(--color-muted);
}

.insight-meta {
    display: inline-block;
    margin-top: 12px;
    font-size: 14px;
    color: var(--color-secondary);
}

/* Global */
.global-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.global-card {
    background-color: var(--color-light);
    padding: 28px;
    border-radius: 20px;
    border: 1px solid rgba(12, 29, 62, 0.08);
    transition: var(--transition);
}

.global-card:hover {
    transform: translateY(-4px);
    border-color: rgba(13, 110, 253, 0.5);
}

.global-card h3 {
    margin-top: 0;
    color: var(--color-primary);
}

/* CTA */
.cta {
    background: var(--color-primary);
    color: var(--color-light);
    padding: clamp(64px, 8vw, 96px) 0;
}

.cta-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    text-align: center;
}

.cta-inner h2 {
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 40px);
    margin: 0;
}

.cta-inner p {
    max-width: 640px;
    margin: 0;
    color: rgba(255, 255, 255, 0.85);
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 48px;
    align-items: start;
}

.contact-details {
    list-style: none;
    padding: 0;
    margin: 24px 0 0;
    display: grid;
    gap: 16px;
}

.contact-details li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    color: var(--color-secondary);
}

.contact-details i {
    color: var(--color-accent);
    margin-top: 4px;
}

.contact-card {
    background-color: var(--color-light);
    padding: clamp(32px, 6vw, 48px);
    border-radius: 24px;
    box-shadow: var(--shadow-sm);
    max-width: 720px;
    margin: 0 auto;
}

.contact-note {
    margin-top: 16px;
    color: var(--color-muted);
}

.contact-form {
    background-color: var(--color-light);
    padding: 32px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    display: grid;
    gap: 18px;
}

.form-row {
    display: grid;
    gap: 8px;
}

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

input,
textarea {
    width: 100%;
    border-radius: 12px;
    border: 1px solid rgba(12, 29, 62, 0.18);
    padding: 12px 16px;
    font-family: var(--font-sans);
    transition: var(--transition);
    background-color: #fefefe;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
}

textarea {
    resize: vertical;
}

.form-note {
    font-size: 14px;
    color: var(--color-muted);
    margin: 0;
}

/* Footer */
.site-footer {
    background: #0a172f;
    color: rgba(255, 255, 255, 0.85);
    padding-top: 48px;
}

.footer-inner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 32px;
    padding-bottom: 32px;
}

.footer-brand img {
    height: 40px;
    margin-bottom: 16px;
}

.footer-links ul,
.footer-contacts ul {
    list-style: none;
    margin: 16px 0 0;
    padding: 0;
    display: grid;
    gap: 8px;
}

.footer-links a,
.footer-contacts a {
    color: rgba(255, 255, 255, 0.85);
}

.footer-links a:hover,
.footer-contacts a:hover {
    color: #ffffff;
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    text-align: center;
    padding: 16px 0;
    font-size: 14px;
}

/* Back to top */
.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--color-accent);
    color: var(--color-light);
    display: grid;
    place-items: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Media Queries */
@media (max-width: 960px) {
    .hero {
        background-attachment: scroll;
    }

    .hero-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-list {
        position: absolute;
        top: 100%;
        right: 0;
        flex-direction: column;
        align-items: flex-start;
        padding: 16px;
        background: var(--color-light);
        border-radius: 16px;
        box-shadow: var(--shadow-md);
        min-width: 220px;
        opacity: 0;
        transform: translateY(10px);
        pointer-events: none;
        transition: var(--transition);
    }

    .nav-list.open {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    .nav-list li {
        width: 100%;
    }

    .nav-list a {
        display: block;
        width: 100%;
        padding: 10px 12px;
    }

    .timeline-item {
        grid-template-columns: 1fr;
    }

    .timeline-icon {
        justify-self: flex-start;
    }

    .cta-inner {
        text-align: left;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .header-inner {
        gap: 16px;
    }

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

    .about-card,
    .practice-card,
    .global-card,
    .insight-card,
    .contact-form {
        padding: 24px;
    }

    .cta-inner {
        align-items: stretch;
    }
}

.messaging-icons {
    display: inline-flex;
    gap: 10px;
    margin-right: 10px;
    vertical-align: middle;
}

.messaging-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    height: auto;
    border-radius: 0;
    background: none;
    padding: 0;
    color: var(--color-primary);
    transition: var(--transition);
    text-decoration: none;
}

.messaging-link i {
    font-size: 18px;
    /* icon color is inherited from the link; brand-specific overrides below */
}

.messaging-link:hover,
.messaging-link:focus {
    transform: translateY(-2px);
    color: var(--color-accent);
    text-decoration: none;
}

/* Brand-specific icon colors (applied to the icon itself, no background) */
.messaging-link.telegram i { color: #0d6efd; }
.messaging-link.whatsapp i { color: #0d6efd; }
.messaging-link.viber i { color: #0d6efd; }

.phone-link {
    color: var(--color-primary);
    font-weight: 500; /* match nav link weight */
    font-family: var(--font-sans);
    margin-left: 6px;
}