/* ===== VARIABLES ===== */
:root {
    --color-primary: #2A6DFF;
    --color-primary-hover: #1a5ae8;
    --color-primary-light: #eef2ff;
    --color-accent: #00C2BA;
    --color-bg: #F8FAFE;
    --color-dark: #0B1A33;
    --color-text: #1A1F36;
    --color-text-secondary: #5A6874;
    --color-white: #ffffff;
    --color-border: #e2e8f0;
    --color-success: #10b981;
    --font-text: 'Inter', sans-serif;
    --font-heading: 'Montserrat', sans-serif;
    --radius: 12px;
    --shadow: 0 4px 20px rgba(0,0,0,0.06);
    --shadow-hover: 0 8px 30px rgba(0,0,0,0.12);
    --transition: 0.3s ease;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-text);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.section__title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--color-dark);
}
.accent { color: var(--color-primary); }

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}
.btn--primary {
    background: var(--color-primary);
    color: var(--color-white);
}
.btn--primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.btn--outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}
.btn--outline:hover { background: var(--color-primary); color: white; }
.btn--small { padding: 10px 20px; font-size: 0.9rem; }
.btn--full { width: 100%; }

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
}
.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}
.logo { font-size: 1.3rem; font-weight: 700; font-family: var(--font-heading); }
.nav__list { display: flex; gap: 30px; }
.nav__link {
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: var(--transition);
    font-size: 0.95rem;
}
.nav__link:hover { color: var(--color-primary); }
.nav__link--active { color: var(--color-primary); }
.burger { display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; }
.burger span { display: block; width: 24px; height: 2px; background: var(--color-dark); border-radius: 2px; }

/* ===== HERO ===== */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--color-dark) 0%, #162044 100%);
    color: white;
    text-align: center;
}
.hero__title {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}
.hero__subtitle {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.hero__btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 3rem; }
.hero__btns .btn--outline { border-color: rgba(255,255,255,0.4); color: white; }
.hero__btns .btn--outline:hover { border-color: white; background: rgba(255,255,255,0.1); }
.hero__stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}
.hero__stat {
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
}
.hero__num {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-accent);
}

/* ===== CARDS ===== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 24px; }
.card {
    background: var(--color-white);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.card__icon {
    width: 56px;
    height: 56px;
    background: var(--color-primary-light);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}
.card__emoji { font-size: 2.5rem; margin-bottom: 1rem; }
.card__title { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 600; margin-bottom: 0.8rem; }
.card__text { color: var(--color-text-secondary); font-size: 0.95rem; line-height: 1.6; }
.card__list { margin-top: 0.5rem; }
.card__list li {
    padding: 0.4rem 0;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.card__list li i.fa-check { color: var(--color-primary); }
.card__list li i.fa-times { color: #ef4444; }
.card__profit { font-weight: 600 !important; color: var(--color-dark) !important; margin-top: 0.5rem !important; }

/* ===== PROBLEMS ===== */
.problems { padding: 80px 0; }

/* ===== AUDIENCE ===== */
.audience { padding: 80px 0; background: var(--color-white); }

/* ===== PROGRAM ===== */
.program { padding: 80px 0; background: var(--color-dark); color: white; }
.program .section__title { color: white; }
.program__tabs { display: flex; justify-content: center; gap: 16px; margin-bottom: 2rem; }
.program__tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 16px 32px;
    background: rgba(255,255,255,0.08);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}
.program__tab:hover { background: rgba(255,255,255,0.12); }
.program__tab--active {
    background: var(--color-primary);
    border-color: var(--color-primary);
}
.program__tab-label { font-weight: 700; font-family: var(--font-heading); }
.program__tab-price { font-size: 0.9rem; opacity: 0.9; }
.program__tab-dur { font-size: 0.8rem; opacity: 0.7; }
.program__content { display: none; }
.program__content.active { display: block; animation: fadeIn 0.4s ease; }
.program .card { background: rgba(255,255,255,0.05); color: white; }
.program .card:hover { background: rgba(255,255,255,0.1); }
.program .card__title { color: var(--color-accent); }
.program .card__list li { color: rgba(255,255,255,0.8); }
.program .card__result {
    margin-top: 1rem;
    padding: 0.6rem;
    background: rgba(16,185,129,0.15);
    border-radius: 8px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-success);
    font-weight: 500;
}
.card__week-num {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255,255,255,0.5);
    margin-bottom: 0.3rem;
}
.program__result {
    text-align: center;
    margin-top: 2rem;
    font-size: 1.1rem;
    color: var(--color-accent);
    font-weight: 600;
}

/* ===== AUTHOR ===== */
.author {
    padding: 80px 0;
    background: var(--color-white);
}
.author__inner {
    display: flex;
    align-items: center;
    gap: 40px;
    max-width: 700px;
    margin: 0 auto;
}
.author__photo {
    flex-shrink: 0;
}
.author__img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--color-primary-light);
    box-shadow: var(--shadow);
}
.author__name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.2rem;
}
.author__title {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1rem;
}
.author__desc {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}
.author__facts { display: flex; gap: 12px; flex-wrap: wrap; }
.author__fact {
    background: var(--color-primary-light);
    padding: 6px 14px;
    border-radius: 20px;
    color: var(--color-primary);
    font-weight: 500;
    font-size: 0.85rem;
}
@media (max-width: 600px) {
    .author__inner { flex-direction: column; text-align: center; }
    .author__facts { justify-content: center; }
}

/* ===== TARIFFS ===== */
.tariffs { padding: 80px 0; }
.tariffs__grid { max-width: 800px; margin: 0 auto; }
.card--tariff { text-align: center; position: relative; }
.card--popular {
    border: 2px solid var(--color-primary);
    transform: scale(1.02);
}
.card--popular:hover { transform: scale(1.03); }
.card__badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-text-secondary);
    color: white;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}
.card__badge--popular { background: var(--color-primary); }
.card__price {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-dark);
    margin: 1rem 0;
}
.card--tariff .card__list { text-align: left; }
.card--tariff .card__list li { justify-content: flex-start; }
.card__no { opacity: 0.4; }
.card__bonus { color: var(--color-primary) !important; font-weight: 600 !important; }

/* ===== FAQ ===== */
.faq { padding: 80px 0; background: var(--color-white); }
.faq__list { max-width: 700px; margin: 0 auto; }
.faq__item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
}
.faq__question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
    transition: var(--transition);
    text-align: left;
}
.faq__question:hover { background: var(--color-bg); }
.faq__question i { transition: var(--transition); color: var(--color-text-secondary); }
.faq__item.active .faq__question i { transform: rotate(180deg); }
.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 1.5rem;
}
.faq__item.active .faq__answer {
    max-height: 300px;
    padding: 0 1.5rem 1.2rem;
}
.faq__answer p { color: var(--color-text-secondary); line-height: 1.7; }

/* ===== CTA FORM ===== */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, #162044 100%);
    color: white;
    text-align: center;
}
.cta-section .section__title { color: white; }
.cta-section__text { color: rgba(255,255,255,0.8); margin-bottom: 2rem; }
.form {
    max-width: 400px;
    margin: 0 auto;
}
.form__group { margin-bottom: 16px; }
.form__input {
    width: 100%;
    padding: 14px 16px;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.08);
    color: white;
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}
.form__input::placeholder { color: rgba(255,255,255,0.5); }
.form__input:focus { border-color: var(--color-primary); background: rgba(255,255,255,0.12); }
.form__input option { color: var(--color-dark); }
.form__success {
    display: none;
    max-width: 400px;
    margin: 1.5rem auto 0;
    padding: 1rem;
    background: rgba(16,185,129,0.15);
    border-radius: var(--radius);
}
.form__success i { font-size: 2rem; color: var(--color-success); display: block; margin-bottom: 0.5rem; }

/* ===== FOOTER ===== */
.footer {
    background: var(--color-dark);
    color: rgba(255,255,255,0.8);
    padding: 60px 0 20px;
}
.footer__inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer__title { font-family: var(--font-heading); font-weight: 600; color: white; margin-bottom: 1rem; }
.footer__links li { margin-bottom: 8px; }
.footer__links a { color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer__links a:hover { color: var(--color-primary); }
.footer__text { margin-top: 0.5rem; color: rgba(255,255,255,0.5); font-size: 0.9rem; }
.footer__bottom { text-align: center; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); }
.footer__bottom p { font-size: 0.85rem; color: rgba(255,255,255,0.4); }

/* ===== ANIMATIONS ===== */
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.fade-in { animation: fadeIn 0.6s ease forwards; opacity: 0; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .hero__title { font-size: 2rem; }
    .section__title { font-size: 1.6rem; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .header__btn { display: none; }
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        padding: 20px;
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        pointer-events: none;
    }
    .nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .nav__list { flex-direction: column; gap: 16px; }
    .burger { display: flex; }
    .card--popular { transform: none; }
    .card--popular:hover { transform: translateY(-4px); }
    .footer__inner { grid-template-columns: 1fr; gap: 24px; }
    .hero__stats { gap: 20px; }
    .program__tabs { flex-direction: column; align-items: stretch; }
}

@media (max-width: 320px) {
    .hero__title { font-size: 1.6rem; }
    .hero__btns { flex-direction: column; }
    .btn { width: 100%; }
}