/* ===== Базовые сбросы и переменные ===== */
:root {
    --color-bg: #FFFFFF;
    --color-text: #212529;
    --color-accent: #6C63FF;
    --color-accent-hover: #5A52D5;
    --color-secondary: #00D4FF;
    --color-light: #F8F9FA;
    --color-dark: #0D1117;
    --color-text-light: #E6EDF3;

    --font-main: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --transition: 0.3s ease;
}

[data-theme="dark"] {
    --color-bg: #0D1117;
    --color-text: #E6EDF3;
    --color-accent: #7C73FF;
    --color-accent-hover: #9A93FF;
    --color-secondary: #58A6FF;
    --color-light: #161B22;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    transition: background-color var(--transition), color var(--transition);
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Шапка ===== */
.header {
    padding: 20px 0;
    border-bottom: 1px solid rgba(108, 99, 255, 0.1);
    position: sticky;
    top: 0;
    background-color: var(--color-bg);
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.9);
    transition: background-color var(--transition);
}

[data-theme="dark"] .header {
    background-color: rgba(13, 17, 23, 0.9);
}

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

.header__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 700;
}

.header__icon {
    font-size: 1.8rem;
}

.theme-toggle {
    background: none;
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    font-size: 1.4rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    background-color: transparent;
}

.theme-toggle:hover {
    transform: scale(1.1);
    background-color: var(--color-accent);
}

/* ===== Hero Section ===== */
.hero {
    padding: 100px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 40%, rgba(108, 99, 255, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(0, 212, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.hero__inner {
    position: relative;
    z-index: 1;
}

.hero__title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 20px;
    min-height: 1.4em;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.hero__subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text);
    opacity: 0.7;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Typing Cursor ===== */
.cursor {
    display: inline-block;
    font-weight: 100;
    color: var(--color-accent);
    animation: blink 0.7s step-end infinite;
}

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

/* ===== Секция преимуществ ===== */
.advantages {
    padding: 80px 0;
    background-color: var(--color-light);
    transition: background-color var(--transition);
}

.section-title {
    text-align: center;
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 700;
    margin-bottom: 50px;
    color: var(--color-text);
}

.advantages__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
}

.advantage-card {
    background-color: var(--color-bg);
    border-radius: 16px;
    padding: 30px 25px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid rgba(108, 99, 255, 0.08);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(108, 99, 255, 0.12);
    border-color: rgba(108, 99, 255, 0.2);
}

.advantage-card__icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.advantage-card__title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.advantage-card__text {
    font-size: 0.95rem;
    opacity: 0.8;
    line-height: 1.6;
}

/* ===== Секция вдохновения ===== */
.inspiration {
    padding: 80px 0;
    text-align: center;
}

.inspiration__blockquote {
    max-width: 700px;
    margin: 0 auto 30px;
    padding: 40px;
    background: linear-gradient(135deg, rgba(108, 99, 255, 0.08), rgba(0, 212, 255, 0.08));
    border-radius: 20px;
    border-left: 4px solid var(--color-accent);
}

.inspiration__quote {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-style: italic;
    line-height: 1.8;
    margin-bottom: 15px;
}

.inspiration__author {
    font-size: 0.95rem;
    opacity: 0.6;
}

.btn {
    display: inline-block;
    padding: 14px 36px;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 4px 15px rgba(108, 99, 255, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(108, 99, 255, 0.4);
}

.btn:active {
    transform: translateY(0);
}

/* ===== Секция счётчика ===== */
.counter-section {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
    color: #fff;
}

.counter-section .section-title {
    color: #fff;
}

.counter-section__display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.counter-section__number {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    line-height: 1;
    letter-spacing: 2px;
}

.counter-section__label {
    font-size: clamp(1rem, 2vw, 1.5rem);
    opacity: 0.9;
}

.counter-section__sub {
    margin-top: 20px;
    font-size: 1.1rem;
    opacity: 0.8;
}

/* ===== Подвал ===== */
.footer {
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid rgba(108, 99, 255, 0.1);
}

.footer__copy {
    font-size: 0.9rem;
    opacity: 0.6;
}

/* ===== Анимация появления (reveal) ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.reveal--visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Адаптивность ===== */
@media (max-width: 768px) {
    .hero {
        padding: 60px 0 50px;
    }

    .hero__title {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }

    .advantages {
        padding: 50px 0;
    }

    .advantages__grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .inspiration {
        padding: 50px 0;
    }

    .inspiration__blockquote {
        padding: 25px;
    }

    .counter-section {
        padding: 50px 0;
    }
}

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

    .container {
        padding: 0 15px;
    }
}