/* ============================================================
   KRB-02 ECG Desktop — Website Stylesheet
   Modern medical/tech aesthetic with smooth animations
   ============================================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #1B5E20;
    --color-primary-light: #2E7D32;
    --color-primary-lighter: #4CAF50;
    --color-primary-bg: #E8F5E9;
    --color-accent: #1565C0;
    --color-accent-light: #1E88E5;
    --color-dark: #1a1a2e;
    --color-dark-2: #16213e;
    --color-dark-3: #0f3460;
    --color-text: #2d3436;
    --color-text-light: #636e72;
    --color-text-muted: #b2bec3;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fffe;
    --color-bg-dark: #0d1117;
    --color-border: #e0e0e0;
    --color-card: #ffffff;
    --color-ecg: #4CAF50;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.06);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15), 0 8px 20px rgba(0,0,0,0.08);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-accent-light);
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    transition: all var(--transition);
}

.nav--scrolled {
    box-shadow: var(--shadow-sm);
}

.nav__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--color-text);
    text-decoration: none;
}

.nav__logo-icon {
    font-size: 1.3rem;
    color: var(--color-ecg);
    animation: heartbeat 2s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    15% { transform: scale(1.15); }
    30% { transform: scale(1); }
    45% { transform: scale(1.1); }
}

.nav__links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav__links a {
    display: block;
    padding: 8px 14px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-light);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav__links a:hover {
    color: var(--color-primary);
    background: var(--color-primary-bg);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav__toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    gap: 8px;
    white-space: nowrap;
}

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

.btn--primary:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(27, 94, 32, 0.3);
}

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

.btn--outline:hover {
    background: var(--color-primary);
    color: #fff;
    transform: translateY(-2px);
}

.btn--full {
    width: 100%;
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f0fdf4 0%, #e8f5e9 30%, #e3f2fd 70%, #f0f4ff 100%);
    overflow: hidden;
    padding-top: 64px;
}

.hero__bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero__canvas {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 200px;
    opacity: 0.3;
}

.hero__container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 24px;
    text-align: center;
}

.hero__badge {
    display: inline-block;
    padding: 6px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(76, 175, 80, 0.12);
    border: 1px solid rgba(76, 175, 80, 0.25);
    border-radius: 100px;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

.hero__title {
    font-size: clamp(2.5rem, 6vw, 4.2rem);
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-dark);
    margin-bottom: 20px;
    letter-spacing: -0.03em;
}

.hero__subtitle {
    font-size: 1.15rem;
    color: var(--color-text-light);
    max-width: 620px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.hero__actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 700px;
    margin: 0 auto;
}

.hero__stat {
    text-align: center;
}

.hero__stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-mono);
}

.hero__stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

/* --- Section Headers --- */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header__tag {
    display: inline-block;
    padding: 4px 14px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-primary);
    background: var(--color-primary-bg);
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-header--light .section-header__tag {
    background: rgba(76, 175, 80, 0.15);
    color: #a5d6a7;
}

.section-header__title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.section-header--light .section-header__title {
    color: #fff;
}

.section-header__desc {
    font-size: 1.05rem;
    color: var(--color-text-light);
    max-width: 560px;
    margin: 0 auto;
}

.section-header--light .section-header__desc {
    color: rgba(255, 255, 255, 0.7);
}

/* --- Features Section --- */
.features {
    padding: 100px 0;
    background: var(--color-bg);
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 36px 28px;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary-lighter), var(--color-accent-light));
    opacity: 0;
    transition: opacity var(--transition);
}

.feature-card:hover {
    border-color: rgba(76, 175, 80, 0.3);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

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

.feature-card__icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-bg);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    color: var(--color-primary);
}

.feature-card__icon svg {
    width: 28px;
    height: 28px;
}

.feature-card__title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-dark);
}

.feature-card__desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.65;
}

/* --- Diagnostics Section --- */
.diagnostics {
    padding: 100px 0;
    background: var(--color-dark);
    color: #fff;
}

.diagnostics__columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.diag-column {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: all var(--transition);
}

.diag-column:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(76, 175, 80, 0.3);
}

.diag-column__title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #e8f5e9;
}

.diag-column__icon {
    font-size: 1.3rem;
}

.diag-list {
    list-style: none;
}

.diag-list li {
    position: relative;
    padding: 8px 0 8px 20px;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.75);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    line-height: 1.5;
}

.diag-list li:last-child {
    border-bottom: none;
}

.diag-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-ecg);
}

.diagnostics__note {
    margin-top: 40px;
    padding: 20px 24px;
    background: rgba(255, 193, 7, 0.08);
    border: 1px solid rgba(255, 193, 7, 0.2);
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
}

.diagnostics__note strong {
    color: #ffd54f;
}

/* --- Device Section --- */
.device {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.device__layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.device__spec-group {
    margin-bottom: 32px;
}

.device__spec-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-primary-bg);
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
}

.spec-table td {
    padding: 10px 12px;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--color-border);
}

.spec-table td:first-child {
    font-weight: 500;
    color: var(--color-text);
    width: 45%;
}

.spec-table td:last-child {
    color: var(--color-text-light);
}

.spec-table tr:last-child td {
    border-bottom: none;
}

/* Device visual card */
.device__visual {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.device__card {
    background: linear-gradient(135deg, #1a2332, #0d1b2a);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(76, 175, 80, 0.2);
}

.device__card-ecg {
    margin-bottom: 20px;
}

.device__ecg-wave {
    width: 100%;
    height: auto;
}

.ecg-path {
    stroke-dasharray: 800;
    stroke-dashoffset: 800;
    animation: drawEcg 3s ease-in-out infinite;
}

@keyframes drawEcg {
    0% { stroke-dashoffset: 800; }
    50% { stroke-dashoffset: 0; }
    100% { stroke-dashoffset: -800; }
}

.device__card-label {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    font-family: var(--font-mono);
}

.device__card-status {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.status-dot--green {
    background: var(--color-ecg);
    box-shadow: 0 0 8px rgba(76, 175, 80, 0.6);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.device__leads {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lead-badge {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.lead-badge:hover {
    border-color: var(--color-primary-lighter);
    box-shadow: var(--shadow-sm);
}

.lead-badge__name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-primary);
    font-family: var(--font-mono);
}

.lead-badge__desc {
    font-size: 0.82rem;
    color: var(--color-text-light);
}

/* Device purchase card */
.device__purchase {
    margin-top: 48px;
}

.purchase-card {
    background: linear-gradient(135deg, var(--color-primary-bg), #c8e6c9);
    border: 1px solid rgba(76, 175, 80, 0.3);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
}

.purchase-card__title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.purchase-card__desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
    max-width: 500px;
    margin: 0 auto 24px;
}

.purchase-card__links {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.purchase-card__contact {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-top: 8px;
}

.purchase-card__contact a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
}

.purchase-card__contact a:hover {
    text-decoration: underline;
}

/* --- Screenshots / Interface Section --- */
.screenshots {
    padding: 100px 0;
    background: var(--color-bg);
}

.interface__features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.if-card {
    padding: 32px 28px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    position: relative;
}

.if-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.if-card__number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary-bg);
    font-family: var(--font-mono);
    line-height: 1;
    margin-bottom: 16px;
    transition: color var(--transition);
}

.if-card:hover .if-card__number {
    color: rgba(76, 175, 80, 0.25);
}

.if-card__title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 10px;
}

.if-card__desc {
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* --- Advantages Section --- */
.advantages {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--color-dark), var(--color-dark-2), var(--color-dark-3));
    color: #fff;
}

.advantages__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.adv-item {
    padding: 28px 24px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.adv-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(76, 175, 80, 0.3);
    transform: translateY(-4px);
}

.adv-item__icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.adv-item__title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: #e8f5e9;
}

.adv-item__desc {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

/* --- License Section --- */
.license {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.license__layout {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 48px;
    align-items: start;
}

.license-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.license-card--primary {
    background: #fff;
    border: 2px solid var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.license-card__header {
    padding: 28px 28px 20px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: #fff;
    text-align: center;
}

.license-card__title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.license-card__badge {
    display: inline-block;
    padding: 4px 14px;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 100px;
}

.license-card__features {
    list-style: none;
    padding: 24px 28px;
}

.license-card__features li {
    position: relative;
    padding: 8px 0 8px 24px;
    font-size: 0.9rem;
    color: var(--color-text);
    border-bottom: 1px solid rgba(0,0,0,0.04);
}

.license-card__features li:last-child {
    border-bottom: none;
}

.license-card__features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary-lighter);
    font-weight: 700;
}

.license-card .btn {
    margin: 0 28px 28px;
    width: calc(100% - 56px);
}

/* License info steps */
.license-info__title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 28px;
}

.license-steps {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.license-step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.license-step__num {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: #fff;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 50%;
}

.license-step__content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 4px;
}

.license-step__content p {
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.license-step__content code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background: var(--color-primary-bg);
    padding: 2px 8px;
    border-radius: 4px;
    color: var(--color-primary);
}

/* --- Contact Section --- */
.contact {
    padding: 80px 0;
    background: var(--color-dark);
    color: #fff;
}

.contact__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.contact-card {
    padding: 32px 28px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition);
}

.contact-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(76, 175, 80, 0.3);
}

.contact-card__icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.contact-card__title {
    font-size: 1.05rem;
    font-weight: 600;
    color: #e8f5e9;
    margin-bottom: 8px;
}

.contact-card__desc {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 16px;
}

.contact-card__link {
    display: inline-block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-ecg);
    padding: 8px 20px;
    border: 1px solid rgba(76, 175, 80, 0.3);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.contact-card__link:hover {
    background: rgba(76, 175, 80, 0.15);
    color: #a5d6a7;
    border-color: rgba(76, 175, 80, 0.5);
}

/* --- Footer --- */
.footer {
    padding: 48px 0 24px;
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.5);
}

.footer__content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__logo {
    font-size: 1.1rem;
    font-weight: 700;
    color: #e8f5e9;
    margin-bottom: 8px;
}

.footer__copy {
    font-size: 0.82rem;
    max-width: 300px;
}

.footer__links {
    display: flex;
    gap: 56px;
}

.footer__col {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer__col h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 8px;
}

.footer__col a {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.4);
    transition: color var(--transition);
}

.footer__col a:hover {
    color: var(--color-ecg);
}

.footer__bottom {
    padding-top: 24px;
    text-align: center;
}

.footer__bottom p {
    font-size: 0.8rem;
}

.footer__disclaimer {
    margin-top: 8px;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.3);
}

/* --- Scroll Animations --- */
[data-aos] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .features__grid,
    .diagnostics__columns,
    .interface__features {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .device__layout {
        grid-template-columns: 1fr;
    }

    .license__layout {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .nav__links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.97);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
    }

    .nav__links.active {
        display: flex;
    }

    .nav__toggle {
        display: flex;
    }

    .features__grid,
    .diagnostics__columns,
    .interface__features,
    .contact__grid {
        grid-template-columns: 1fr;
    }

    .advantages__grid {
        grid-template-columns: 1fr;
    }

    .hero__stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .hero__container {
        padding: 60px 24px;
    }

    .footer__content {
        flex-direction: column;
        gap: 32px;
    }

    .footer__links {
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .hero__stats {
        grid-template-columns: 1fr 1fr;
    }

    .hero__actions {
        flex-direction: column;
        align-items: center;
    }
}