/* CSS Variables */
:root {
    --color-primary: #2C5AA0;
    --color-accent: #F68E1F;
    --color-text: #333333;
    --color-text-light: #777777;
    --color-bg: #F5F7FA;
    --color-white: #FFFFFF;
    
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    --border-radius: 8px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.section-subtitle {
    font-size: 1.2rem;
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: 3rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-heading);
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 16px;
}

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

.btn--primary:hover {
    background-color: #1e3d6d;
    transform: translateY(-2px);
}

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

.btn--accent:hover {
    background-color: #d97a1a;
    transform: translateY(-2px);
}

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

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

.btn--block {
    display: block;
    width: 100%;
}

/* Header */
.header {
    background-color: var(--color-white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo h1 {
    color: var(--color-primary);
    margin: 0;
    font-size: 1.8rem;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav__link {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
    transition: var(--transition);
}

.nav__link:hover {
    color: var(--color-primary);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1e3d6d 100%);
    color: var(--color-white);
    padding: 120px 0 80px;
    margin-top: 80px;
}

.hero__title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.hero__subtitle {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.hero__description {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    opacity: 0.8;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Pains Section */
.pains {
    padding: 80px 0;
    background-color: var(--color-bg);
}

.pains__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.pain-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.pain-card__icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.pain-card h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.pain-card ul {
    list-style: none;
}

.pain-card li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.pain-card li:before {
    content: "•";
    color: var(--color-accent);
    position: absolute;
    left: 0;
}

.pains__cta {
    text-align: center;
    font-size: 1.1rem;
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

/* How it works */
.how-it-works {
    padding: 80px 0;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    text-align: center;
    padding: 2rem;
    position: relative;
}

.step__number {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: var(--color-white);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.step__icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Tariffs */
.tariffs {
    padding: 80px 0;
    background-color: var(--color-bg);
}

.tariffs__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.tariff-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    position: relative;
    transition: var(--transition);
}

.tariff-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.tariff-card--popular {
    border: 2px solid var(--color-accent);
}

.popular-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: var(--color-white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.tariff-card__header h3 {
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 0.5rem;
}

.tariff-card__subtitle {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    font-style: italic;
}

.tariff-card__team h4 {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.team-member {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.team-member__icon {
    margin-right: 0.5rem;
    font-size: 1.2rem;
}

.tariff-card__features {
    list-style: none;
    margin: 1.5rem 0;
}

.tariff-card__features li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.tariff-card__features li:before {
    content: "✓";
    color: var(--color-accent);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.tariff-card__price {
    text-align: center;
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--color-bg);
    border-radius: var(--border-radius);
}

.price-main {
    font-size: 2rem;
    font-weight: bold;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.price-save {
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.price-note {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* Demo Section */
.demo {
    padding: 80px 0;
}

.demo__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.demo__description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--color-text-light);
}

.demo__features {
    margin-bottom: 2rem;
}

.demo-feature {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.demo-feature__icon {
    margin-right: 0.5rem;
    color: var(--color-accent);
}

.telegram-widget {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    border: 2px solid var(--color-primary);
}

.telegram-widget__icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.telegram-widget h3 {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.telegram-widget p {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}

.form-input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    font-family: var(--font-body);
    font-size: 16px;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.telegram-icon {
    margin-right: 0.5rem;
}

.telegram-note {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-top: 1rem;
}

/* Footer */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 3rem 0;
}

.footer__content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
}

.footer__brand h3 {
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer__link {
    color: var(--color-white);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
}

.footer__link:hover {
    opacity: 1;
}

.footer__contact {
    text-align: right;
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero__title {
        font-size: 2rem;
    }
    
    .hero__actions {
        flex-direction: column;
    }
    
    .nav {
        display: none;
    }
    
    .demo__content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer__contact {
        text-align: center;
    }
}
/* Cases Section */
.cases {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-white) 100%);
}

.cases__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.case-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid #eaeaea;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.case-card__header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--color-bg);
}

.case-card__icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.case-card h3 {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.case-card__category {
    color: var(--color-text-light);
    font-style: italic;
    margin: 0;
}

.case-card__stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat {
    text-align: center;
    padding: 1rem;
    background: var(--color-bg);
    border-radius: var(--border-radius);
}

.stat__value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 0.3rem;
    font-family: var(--font-heading);
}

.stat__label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.3;
}

.case-card__topics h4 {
    color: var(--color-primary);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.case-card__topics ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.case-card__topics li {
    margin-bottom: 0.5rem;
    padding-left: 1.2rem;
    position: relative;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.case-card__topics li:before {
    content: "•";
    color: var(--color-accent);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.cases__cta {
    text-align: center;
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 2px dashed var(--color-primary);
}

.cases__cta p {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
    font-weight: 600;
}

/* Адаптивность для кейсов */
@media (max-width: 768px) {
    .cases__grid {
        grid-template-columns: 1fr;
    }
    
    .case-card__stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat__value {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .case-card__stats {
        grid-template-columns: 1fr;
    }
    
    .case-card {
        padding: 1.5rem;
    }
}