:root {
    --bg-primary: #f4f7ff;
    --bg-secondary: #eef3ff;
    --bg-card: rgba(255, 255, 255, 0.84);
    --bg-card-strong: rgba(255, 255, 255, 0.94);
    --border-subtle: rgba(59, 130, 246, 0.14);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --blue-400: #3b82f6;
    --blue-500: #2563eb;
    --blue-600: #1d4ed8;
    --purple-400: #8b5cf6;
    --green-400: #10b981;
    --dark-900: #0f172a;
    --shadow-soft: 0 20px 50px rgba(15, 23, 42, 0.08);
    --shadow-strong: 0 28px 70px rgba(37, 99, 235, 0.12);
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    position: relative;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(180deg, #f7f9ff 0%, #eef3ff 100%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

button,
input,
textarea {
    font-family: inherit;
}

.container {
    max-width: 1260px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .container {
        padding: 0 1.5rem;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 2rem;
    }
}

.contacts-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.contacts-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(37, 99, 235, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.035) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 90%);
}

.contacts-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.5;
}

.glow-1 {
    top: 6%;
    left: -8%;
    width: 360px;
    height: 360px;
    background: rgba(59, 130, 246, 0.18);
}

.glow-2 {
    top: 18%;
    right: -10%;
    width: 420px;
    height: 420px;
    background: rgba(139, 92, 246, 0.14);
}

.glow-3 {
    bottom: 10%;
    left: 30%;
    width: 440px;
    height: 440px;
    background: rgba(16, 185, 129, 0.08);
}

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 50;
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(14px);
}

.navbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--blue-500), var(--purple-400));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 20px;
    height: 20px;
    color: #fff;
    fill: currentColor;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.logo-text span {
    color: var(--blue-400);
}

.nav-links {
    display: none;
    align-items: center;
    gap: 2rem;
}

@media (min-width: 992px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--blue-500);
}

.btn-primary,
.btn-dark,
.btn-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0.95rem 1.6rem;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 700;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
    color: #fff;
    box-shadow: 0 16px 30px rgba(37, 99, 235, 0.2);
}

.btn-dark {
    background: var(--dark-900);
    color: #fff;
    border: 0;
    cursor: pointer;
    box-shadow: 0 16px 28px rgba(15, 23, 42, 0.16);
}

.btn-light {
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(37, 99, 235, 0.14);
    color: var(--blue-500);
}

.btn-primary:hover,
.btn-dark:hover,
.btn-light:hover {
    transform: translateY(-1px);
}

.contacts-page {
    position: relative;
    z-index: 1;
}

.contacts-hero {
    padding: 128px 0 40px;
}

.contacts-hero-box {
    display: grid;
    grid-template-columns: 1fr 0.5fr;
    gap: 1rem;
}

.hero-panel,
.sidebar-card,
.sidebar-note,
.method-row,
.contact-form-shell,
.info-box,
.final-strip {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
}

.hero-panel {
    border-radius: 1.75rem;
    padding: 1.5rem;
}

.hero-chip,
.stack-chip,
.section-chip,
.final-chip {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0.45rem 0.95rem;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.12);
    color: var(--blue-500);
    font-size: 0.84rem;
    font-weight: 700;
}

.hero-title {
    margin-top: 1rem;
    font-size: clamp(2.2rem, 5vw, 4rem);
    line-height: 1;
    letter-spacing: -0.055em;
    font-weight: 800;
    max-width: 100%;
}

.hero-subtitle {
    margin-top: 1rem;
    max-width: 46rem;
    font-size: 1.04rem;
    line-height: 1.82;
    color: var(--text-secondary);
}

.hero-quick {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
    margin-top: 1.8rem;
}

.quick-item {
    padding: 1rem;
    border-radius: 1.2rem;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.quick-item strong {
    display: block;
    font-size: 0.98rem;
    line-height: 1.25;
    font-weight: 800;
    color: var(--text-primary);
}

.quick-item span {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.9rem;
    line-height: 1.62;
    color: var(--text-secondary);
}

.hero-card {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.hero-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.hero-card-chip {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    color: var(--text-secondary);
    font-size: 0.76rem;
    font-weight: 700;
}

.hero-card-line {
    width: 108px;
    height: 10px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.22), rgba(139, 92, 246, 0.14));
}

.hero-contact-main {
    padding: 1.3rem;
    border-radius: 1.4rem;
    background: linear-gradient(180deg, rgba(239, 246, 255, 0.98), rgba(255, 255, 255, 0.94));
    border: 1px solid rgba(37, 99, 235, 0.12);
}

.hero-contact-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.hero-contact-link {
    display: block;
    margin-top: 0.65rem;
    font-size: clamp(1.4rem, 3vw, 2rem);
    line-height: 1.1;
    letter-spacing: -0.04em;
    font-weight: 800;
    color: var(--text-primary);
}

.hero-contact-meta {
    display: grid;
    gap: 0.85rem;
    margin-top: 1rem;
}

.meta-box {
    padding: 1rem 1.05rem;
    border-radius: 1.2rem;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(37, 99, 235, 0.08);
}

.meta-title {
    display: block;
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.meta-box strong {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.95rem;
    line-height: 1.45;
    color: var(--text-primary);
}

.contacts-layout-section {
    padding: 0 0 96px;
}

.contacts-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 1rem;
    align-items: start;
}

.contacts-sidebar {
    position: sticky;
    top: 104px;
    display: grid;
    gap: 1rem;
}

.sidebar-card,
.sidebar-note {
    border-radius: 1.4rem;
    padding: 1.15rem;
}

.sidebar-chip,
.sidebar-note-chip {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.08);
    color: var(--blue-500);
    font-size: 0.75rem;
    font-weight: 700;
}

.sidebar-note-chip {
    background: rgba(139, 92, 246, 0.1);
    color: var(--purple-400);
}

.sidebar-list {
    list-style: none;
    display: grid;
    gap: 0.65rem;
    margin-top: 0.95rem;
}

.sidebar-list a {
    display: flex;
    align-items: center;
    min-height: 46px;
    padding: 0.8rem 0.95rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(37, 99, 235, 0.08);
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: transform 0.2s ease, background 0.2s ease;
}

.sidebar-list a:hover {
    transform: translateX(2px);
    background: rgba(255, 255, 255, 0.92);
}

.sidebar-note p {
    margin-top: 0.8rem;
    font-size: 0.92rem;
    line-height: 1.68;
    color: var(--text-secondary);
}

.contacts-content {
    display: grid;
    gap: 1rem;
}

.contact-stack,
.contact-form-section {
    display: grid;
    gap: 1rem;
}

.stack-header h2 {
    margin-top: 0.85rem;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    line-height: 1.06;
    letter-spacing: -0.045em;
    font-weight: 800;
    color: var(--text-primary);
}

.contact-methods {
    display: grid;
    gap: 0.9rem;
}

.method-row {
    border-radius: 1.5rem;
    padding: 1.15rem;
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr) 110px;
    gap: 1rem;
    align-items: center;
}

.method-icon {
    width: 64px;
    height: 64px;
    border-radius: 1.2rem;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.14), rgba(59, 130, 246, 0.08));
    color: var(--blue-500);
    display: flex;
    align-items: center;
    justify-content: center;
}

.method-icon.purple {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.14), rgba(139, 92, 246, 0.06));
    color: var(--purple-400);
}

.method-icon.green {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.14), rgba(16, 185, 129, 0.06));
    color: var(--green-400);
}

.method-icon svg {
    width: 28px;
    height: 28px;
    fill: currentColor;
}

.method-label {
    display: inline-block;
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.method-title {
    display: block;
    margin-top: 0.35rem;
    font-size: 1.18rem;
    line-height: 1.25;
    font-weight: 800;
    color: var(--text-primary);
}

.method-copy p {
    margin-top: 0.35rem;
    font-size: 0.93rem;
    line-height: 1.68;
    color: var(--text-secondary);
}

.method-state {
    display: flex;
    justify-content: flex-end;
}

.method-state span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 34px;
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
}

.contact-form-shell {
    border-radius: 1.75rem;
    padding: 1.25rem;
}

.contact-form {
    display: grid;
    gap: 1rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
}

.field {
    display: grid;
    gap: 0.45rem;
}

.field span {
    font-size: 0.84rem;
    font-weight: 700;
    color: var(--text-primary);
}

.field input,
.field textarea {
    width: 100%;
    border: 1px solid rgba(37, 99, 235, 0.12);
    background: rgba(255, 255, 255, 0.9);
    border-radius: 1rem;
    padding: 0.95rem 1rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field input:focus,
.field textarea:focus {
    border-color: rgba(37, 99, 235, 0.26);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08);
}

.field.full {
    grid-column: 1 / -1;
}

.field textarea {
    min-height: 160px;
    resize: vertical;
}

.form-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.form-note {
    max-width: 34rem;
    font-size: 0.9rem;
    line-height: 1.68;
    color: var(--text-secondary);
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.9rem;
}

.info-box {
    border-radius: 1.5rem;
    padding: 1.25rem;
}

.info-box.accent {
    background: linear-gradient(180deg, rgba(239, 246, 255, 0.98), rgba(255, 255, 255, 0.94));
}

.info-box.dark {
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.96), rgba(30, 41, 59, 0.94));
    border-color: rgba(255, 255, 255, 0.06);
}

.info-kicker {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.08);
    color: var(--blue-500);
    font-size: 0.74rem;
    font-weight: 700;
}

.info-box.dark .info-kicker {
    background: rgba(255, 255, 255, 0.08);
    color: #dbeafe;
}

.info-box h3 {
    margin-top: 0.85rem;
    font-size: 1.08rem;
    line-height: 1.3;
    font-weight: 800;
    color: var(--text-primary);
}

.info-box p {
    margin-top: 0.45rem;
    font-size: 0.93rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.info-box.dark h3,
.info-box.dark p {
    color: #f8fafc;
}

.contacts-final {
    padding: 0 0 96px;
}

.final-strip {
    border-radius: 1.8rem;
    padding: 1.4rem 1.5rem;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
    align-items: center;
}

.final-copy h2 {
    margin-top: 0.75rem;
    font-size: clamp(1.7rem, 4vw, 2.5rem);
    line-height: 1.08;
    letter-spacing: -0.04em;
    font-weight: 800;
    color: var(--text-primary);
}

.final-links {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.final-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0.95rem 1.15rem;
    border-radius: 999px;
    background: var(--dark-900);
    color: #fff;
    font-size: 0.92rem;
    font-weight: 700;
    box-shadow: 0 16px 28px rgba(15, 23, 42, 0.14);
}

.final-link.secondary {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(37, 99, 235, 0.14);
    color: var(--blue-500);
    box-shadow: none;
}

@media (max-width: 1200px) {
    .contacts-hero-box,
    .contacts-layout,
    .final-strip {
        grid-template-columns: 1fr;
    }

    .contacts-sidebar {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .contact-info-grid {
        grid-template-columns: 1fr;
    }

    .final-links {
        justify-content: flex-start;
    }
}

@media (max-width: 900px) {
    .method-row {
        grid-template-columns: 64px minmax(0, 1fr);
    }

    .method-state {
        justify-content: flex-start;
        grid-column: 2;
    }

    .form-grid,
    .hero-quick,
    .contacts-sidebar {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767px) {
    .contacts-hero {
        padding-top: 112px;
    }

    .hero-title {
        max-width: none;
    }

    .hero-panel,
    .sidebar-card,
    .sidebar-note,
    .method-row,
    .contact-form-shell,
    .info-box,
    .final-strip {
        padding: 1.1rem;
    }

    .final-link,
    .btn-dark,
    .btn-light {
        width: 100%;
    }

    .hero-actions {
        display: grid;
        gap: 0.8rem;
    }
}

@media (max-width: 991px) {
    .btn-primary {
        display: none;
    }
}