:root {
    --color-white: rgba(255, 255, 255, 1);
    --color-cream-50: rgba(252, 252, 249, 1);
    --color-cream-100: rgba(255, 255, 253, 1);
    --color-gray-200: rgba(245, 245, 245, 1);
    --color-gray-300: rgba(167, 169, 169, 1);
    --color-slate-500: rgba(98, 108, 113, 1);
    --color-slate-900: rgba(19, 52, 59, 1);
    /* --color-teal-500: rgba(33, 128, 141, 1);
    --color-teal-600: rgba(29, 116, 128, 1);
    --color-teal-700: rgba(26, 104, 115, 1);     */
    --color-teal-500: rgba(62, 113, 150, 1);
    --color-teal-600: rgba(82, 142, 185, 1);
    --color-teal-700: rgba(26, 104, 115, 1);
    --color-red-500: rgba(192, 21, 47, 1);
    /* --color-orange-500: rgba(168, 75, 47, 1); */
    --color-orange-500: rgba(168, 73, 81, 1);
    
    --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 40px;
    
    --radius-base: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

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

/* html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-base);
    color: var(--color-slate-900);
    background-color: var(--color-cream-50);
    line-height: 1.6;
    overflow-x: hidden;
} */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
    width: 100%;
}

/* HEADER - MOBILE FIRST */
header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    height: 64px;
}

.logo {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-teal-600);
    letter-spacing: -0.5px;
    text-decoration: none;
}

nav {
    display: flex;
    gap: 16px;
    align-items: center;
}

nav a {
    color: var(--color-slate-500);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color 0.2s;
    white-space: nowrap;
}

nav a:hover {
    color: var(--color-teal-600);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--color-teal-600);
    cursor: pointer;
    padding: 4px;
}

/* HERO - MOBILE FIRST */
.hero {
    background: linear-gradient(135deg, var(--color-teal-500) 0%, var(--color-teal-600) 100%);
    color: var(--color-white);
    padding: 60px 16px;
    text-align: center;
    overflow: hidden;
}

.hero h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: 16px;
    font-weight: 700;
    line-height: 1.2;
}

.hero .subtitle {
    font-size: var(--font-size-base);
    margin-bottom: 40px;
    opacity: 0.95;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}

.metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 32px auto;
    max-width: 1000px;
}

.metric {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 16px;
    border-radius: var(--radius-base);
    backdrop-filter: blur(10px);
}

.metric-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: 4px;
}

.metric-label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    line-height: 1.3;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    justify-content: center;
    align-items: center;
    margin-top: 32px;
    width: 100%;
}

.btn {
    padding: 14px 24px;
    border-radius: var(--radius-base);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    max-width: 300px;
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-white);
    color: var(--color-teal-600);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
}

/* SECTIONS - MOBILE FIRST */
section {
    /* padding: 60px 16px; */
    padding: 0px 16px;
}

section h2 {
    font-size: var(--font-size-xl);
    margin-bottom: 32px;
    text-align: center;
    color: var(--color-slate-900);
    line-height: 1.2;
}

section h3 {
    font-size: var(--font-size-lg);
    margin-bottom: 16px;
    color: var(--color-teal-600);
}

/* PROBLEMS SECTION - MOBILE FIRST */
.problems {
    background: white;
    padding: 60px 16px;
}

.problems h2 {
    font-size: var(--font-size-xl);
    margin-bottom: 40px;
    color: var(--color-slate-900);
}

.problems-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 40px;
}

.problem-card {
    text-align: center;
    padding: 24px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s;
}

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

.problem-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    background: #f0f5ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.problem-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: 12px;
    color: var(--color-slate-900);
}

.problem-card p {
    color: var(--color-slate-500);
    line-height: 1.5;
    font-size: var(--font-size-base);
}

/* TRUST SECTION */
.trust {
    background: var(--color-gray-200);
    padding: 40px 20px;
}

.trust .container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.trust h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: 16px;
    color: var(--color-slate-900);
}

.trust-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.trust-tag {
    background: var(--color-white);
    border-radius: var(--radius-base);
    padding: 8px 14px;
    font-size: var(--font-size-sm);
    color: var(--color-slate-500);
    box-shadow: var(--shadow-sm);
}

.certifications {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.cert {
    background: var(--color-white);
    padding: 8px 16px;
    border-radius: var(--radius-base);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-teal-600);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.trust p {
    text-align: center;
    color: var(--color-slate-500);
    font-size: var(--font-size-sm);
    line-height: 1.4;
}

@media (max-width: 768px) {
    .trust {
        padding: 32px 20px;
    }
}



/* FEATURES - MOBILE FIRST */
.features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin: 32px 0;
}

.feature-card {
    background: var(--color-white);
    padding: 24px;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-teal-500);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s;
}

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

.feature-card h4 {
    color: var(--color-teal-600);
    margin-bottom: 12px;
    font-size: var(--font-size-base);
    display: flex;
    align-items: center;
    gap: 8px;
}

.feature-card p {
    color: var(--color-slate-500);
    margin-bottom: 0;
    font-size: var(--font-size-base);
    line-height: 1.5;
}

/* PAINS - MOBILE FIRST */
.pain-item {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.pain-header {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--color-white);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: background 0.3s;
    user-select: none;
}

.pain-header:hover {
    background: var(--color-gray-200);
}

.pain-header.active {
    background: var(--color-teal-500);
    color: var(--color-white);
}

.pain-toggle {
    font-size: 16px;
    transition: transform 0.3s;
    flex-shrink: 0;
    margin-left: 8px;
}

.pain-header.active .pain-toggle {
    transform: rotate(180deg);
}

.pain-content {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s;
}

.pain-content.active {
    max-height: 2000px;
    padding: 20px;
}

.pain-content p {
    margin-bottom: 16px;
    color: var(--color-slate-900);
    font-size: var(--font-size-base);
    line-height: 1.5;
}

.pain-content ul {
    list-style: none;
    margin: 16px 0;
    padding: 0;
}

.pain-content li {
    padding: 8px 0 8px 28px;
    position: relative;
    color: var(--color-slate-900);
    font-size: var(--font-size-base);
    line-height: 1.4;
}

.pain-content li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-teal-600);
    font-weight: bold;
}

/* CASES - MOBILE FIRST */
.cases {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin: 32px 0;
}

.case-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s;
    /* new */
    display: flex;
    flex-direction: column
}

.case-card:hover {
    transform: translateY(-4px);
}

.case-header {
    background: linear-gradient(135deg, var(--color-teal-500), var(--color-teal-600));
    color: var(--color-white);
    padding: 20px;
    height: 130px;
}

.case-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: 4px;
}

.case-subtitle {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.case-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    /* height: 100%;  */
}

.case-metric {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-gray-200);
    font-size: var(--font-size-base);
}

.case-metric:last-child {
    border-bottom: none;
}

.case-metric-label {
    color: var(--color-slate-500);
    font-size: var(--font-size-base);
}

.case-metric-value {
    font-weight: 600;
    color: var(--color-slate-900);
    text-align: right;
}

.roi-highlight {
    background: var(--color-orange-500);
    color: var(--color-white);
    padding: 12px 16px;
    border-radius: var(--radius-base);
    margin-top: 16px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-align: center;
    margin-top: auto; /* Это "выталкивает" блок вниз */
    min-height: 90px;
}

/* COMPARISON TABLE - MOBILE FIRST */
.table-wrapper {
    overflow-x: auto;
    margin: 32px 0;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-white);
    min-width: 600px;
}

th {
    background: var(--color-teal-500);
    color: var(--color-white);
    padding: 16px;
    text-align: left;
    font-weight: 600;
    border: 1px solid var(--color-teal-600);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

td {
    padding: 16px;
    border: 1px solid var(--color-gray-200);
    font-size: var(--font-size-sm);
    vertical-align: top;
}

tr:nth-child(even) {
    background: var(--color-gray-200);
}

.checkmark {
    color: var(--color-teal-500);
    font-weight: bold;
}

.xmark {
    color: var(--color-red-500);
    font-weight: bold;
}

/* PRICING - MOBILE FIRST */
.pricing-toggle {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin: 24px 0;
    flex-wrap: wrap;
}

.toggle-btn {
    padding: 12px 20px;
    border: 2px solid var(--color-teal-500);
    background: var(--color-white);
    color: var(--color-teal-500);
    border-radius: var(--radius-base);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
    font-size: var(--font-size-base);
    min-width: 140px;
}

.toggle-btn.active {
    background: var(--color-teal-500);
    color: var(--color-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin: 32px 0;
}

.pricing-card {
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-card:hover {
    border-color: var(--color-teal-500);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.pricing-card.featured {
    border-color: var(--color-teal-500);
    box-shadow: 0 0 0 3px rgba(33, 128, 141, 0.1);
    transform: scale(1);
    order: -1;
}

.plan-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-slate-900);
}

.plan-users {
    font-size: var(--font-size-sm);
    color: var(--color-slate-500);
    margin-bottom: 16px;
}

.plan-price {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-teal-600);
    margin: 16px 0;
}

.plan-features {
    list-style: none;
    margin: 20px 0;
    text-align: left;
    flex-grow: 1;
}

.plan-features li {
    padding: 8px 0;
    font-size: var(--font-size-sm);
    color: var(--color-slate-500);
    line-height: 1.4;
}

.plan-features li:before {
    content: "✓ ";
    color: var(--color-teal-600);
    font-weight: bold;
    margin-right: 8px;
}

.btn-plan {
    width: 100%;
    margin-top: 20px;
    margin-bottom: 0;
}

/* FAQ - MOBILE FIRST */
.faq {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    background: var(--color-white);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: background 0.3s;
    user-select: none;
}

.faq-question:hover {
    background: var(--color-gray-200);
}

.faq-question.active {
    background: var(--color-teal-500);
    color: var(--color-white);
}

.faq-question span:first-child {
    flex: 1;
    margin-right: 16px;
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s;
    background: var(--color-gray-200);
    font-size: var(--font-size-base);
}

.faq-answer.active {
    max-height: 2000px;
    padding: 20px;
}

.faq-answer p {
    color: var(--color-slate-900);
    line-height: 1.6;
    margin-bottom: 12px;
    font-size: var(--font-size-base);
}

.faq-answer ul {
    margin: 12px 0 12px 20px;
    list-style: disc;
    padding-left: 0;
}

.faq-answer li {
    margin-bottom: 8px;
    color: var(--color-slate-900);
    font-size: var(--font-size-base);
    line-height: 1.4;
}

/* FINAL CTA - MOBILE FIRST */
.final-cta {
    background: linear-gradient(135deg, var(--color-teal-500), var(--color-teal-600));
    color: var(--color-white);
    text-align: center;
    padding: 60px 16px;
}

.final-cta h2 {
    color: var(--color-white);
    margin-bottom: 24px;
    font-size: var(--font-size-xl);
}

.final-cta p {
    opacity: 0.95;
    margin-top: 16px;
    font-size: var(--font-size-base);
}

/* FOOTER */
/* footer {
    background: var(--color-slate-900);
    color: var(--color-white);
    padding: 40px 16px;
    text-align: center;
    font-size: var(--font-size-sm);
}

footer p {
    margin-bottom: 12px;
    line-height: 1.4;
} */

/* RESPONSIVE - TABLET (min-width: 768px) */
@media (min-width: 768px) {
    .container {
        padding: 0 24px;
    }
    
    header .container {
        padding: 12px 24px;
    }
    
    .logo {
        font-size: var(--font-size-xl);
    }
    
    nav {
        gap: 24px;
    }
    
    nav a {
        font-size: var(--font-size-base);
    }
    
    .hero {
        padding: 80px 24px;
    }
    
    .hero h1 {
        font-size: var(--font-size-3xl);
    }
    
    .hero .subtitle {
        font-size: var(--font-size-lg);
        margin-bottom: 48px;
    }
    
    .metrics {
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        margin: 48px auto;
    }
    
    .metric-value {
        font-size: var(--font-size-2xl);
    }
    
    .cta-buttons {
        flex-direction: row;
        gap: 16px;
        margin-top: 48px;
    }
    
    .btn {
        width: auto;
        min-width: 220px;
    }
    
    section {
        padding: 80px 24px;
    }
    
    section h2 {
        font-size: var(--font-size-2xl);
        margin-bottom: 48px;
    }
    
    section h3 {
        font-size: var(--font-size-xl);
    }
    
    /* PROBLEMS */
    .problems {
        padding: 80px 24px;
    }
    
    .problems h2 {
        font-size: var(--font-size-2xl);
        margin-bottom: 60px;
    }
    
    .problems-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    /* FEATURES */
    .features {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    .feature-card {
        padding: 32px;
    }
    
    .feature-card h4 {
        font-size: var(--font-size-lg);
    }
    
    /* CASES */
    .cases {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    /* PRICING */
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    .pricing-card.featured {
        transform: scale(1.02);
    }
    
    /* FINAL CTA */
    .final-cta {
        padding: 80px 24px;
    }
    
    .final-cta h2 {
        font-size: var(--font-size-2xl);
    }
}

/* RESPONSIVE - DESKTOP (min-width: 1024px) */
@media (min-width: 1024px) {
    .container {
        padding: 0 32px;
    }
    
    .hero h1 {
        font-size: var(--font-size-4xl);
    }
    
    .problems-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
    }
    
    .features {
        grid-template-columns: repeat(3, 1fr);
        gap: 40px;
    }
    
    .cases {
        grid-template-columns: repeat(3, 1fr);
        gap: 40px;
    }
    
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .pricing-card.featured {
        order: 0;
    }
}

/* RESPONSIVE - EXTRA SMALL (max-width: 480px) */
@media (max-width: 480px) {
    .metrics {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .metric {
        padding: 12px;
    }
    
    .certifications {
        gap: 8px;
    }
    
    .cert {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .pain-header {
        padding: 16px;
        font-size: var(--font-size-sm);
    }
    
    .pain-content {
        padding: 0 16px;
    }
    
    .pain-content.active {
        padding: 16px;
    }
    
    .case-metric {
        flex-direction: column;
        gap: 4px;
        align-items: flex-start;
    }
    
    .case-metric-value {
        text-align: left;
    }
    
    .toggle-btn {
        min-width: 120px;
        padding: 10px 16px;
        font-size: var(--font-size-sm);
    }
    
    .faq-question {
        padding: 16px;
        font-size: var(--font-size-sm);
    }
    
    .faq-answer {
        padding: 0 16px;
    }
    
    .faq-answer.active {
        padding: 16px;
    }
}

/* HAMBURGER MENU FOR MOBILE */
@media (max-width: 767px) {
    .mobile-menu-btn {
        display: block;
    }
    
    nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        gap: 0;
        box-shadow: var(--shadow-lg);
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        z-index: 99;
    }
    
    nav.active {
        max-height: 300px;
        padding: 20px 0;
    }
    
    nav a {
        padding: 12px 24px;
        width: 100%;
        text-align: center;
        font-size: var(--font-size-base);
    }
    
    nav a:hover {
        background: var(--color-gray-200);
    }
}