/**
 * Лендинг «Обучение заработку на нейросетях».
 *
 * Строится поверх catalog.css и studio.css: токены, кнопки, поля и FAQ
 * берутся оттуда, здесь только собственная сетка лендинга.
 */

.gs-course {
    padding-bottom: 72px;
}

/* --- Первый экран ---------------------------------------------------- */

.gs-course__hero {
    position: relative;
    margin: 8px 0 56px;
    padding: 64px 48px;
    border: 1px solid var(--gs-border);
    border-radius: calc(var(--gs-radius) + 8px);
    background-color: var(--gs-surface);
    background-position: center right;
    background-size: cover;
    background-repeat: no-repeat;
    box-shadow: var(--gs-shadow);
    overflow: hidden;
}

.gs-course__hero-text {
    max-width: 640px;
}

.gs-course__title {
    margin: 18px 0 0;
    font-size: clamp(30px, 4.4vw, 50px);
    line-height: 1.12;
    letter-spacing: -0.02em;
    color: var(--gs-text);
}

.gs-course__lead {
    margin: 18px 0 0;
    font-size: clamp(16px, 1.7vw, 19px);
    line-height: 1.62;
    color: #cbd5e1;
}

.gs-course__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.gs-course__honest {
    margin: 22px 0 0;
    padding-left: 14px;
    border-left: 2px solid var(--gs-border-strong);
    font-size: 14px;
    line-height: 1.55;
    color: var(--gs-muted);
}

/* --- Блоки ----------------------------------------------------------- */

.gs-course__block {
    margin-bottom: 56px;
}

.gs-course__img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 420px;
    margin: 0 0 24px;
    border: 1px solid var(--gs-border);
    border-radius: var(--gs-radius);
    object-fit: cover;
}

.gs-course__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}

.gs-course__card {
    padding: 24px 22px;
    border: 1px solid var(--gs-border);
    border-radius: var(--gs-radius);
    background: var(--gs-surface);
    transition: border-color 0.18s var(--gs-ease), transform 0.18s var(--gs-ease);
}

.gs-course__card:hover {
    border-color: var(--gs-border-strong);
    transform: translateY(-2px);
}

.gs-course__card h3 {
    margin: 0 0 10px;
    font-size: 18px;
    line-height: 1.3;
    color: var(--gs-text);
}

.gs-course__card p {
    margin: 0;
    font-size: 15px;
    line-height: 1.6;
    color: var(--gs-muted);
}

/* --- Программа ------------------------------------------------------- */

.gs-course__steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    counter-reset: gs-course-step;
}

.gs-course__step {
    position: relative;
    padding: 28px 24px 24px;
    border: 1px solid var(--gs-border);
    border-radius: var(--gs-radius);
    background: linear-gradient(160deg, var(--gs-surface-2) 0%, var(--gs-surface) 100%);
}

.gs-course__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    margin-bottom: 14px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--gs-primary) 0%, #8b5cf6 100%);
    font-size: 17px;
    font-weight: 700;
    color: #fff;
}

.gs-course__step h3 {
    margin: 0 0 10px;
    font-size: 18px;
    line-height: 1.3;
    color: var(--gs-text);
}

.gs-course__step p {
    margin: 0;
    font-size: 15px;
    line-height: 1.62;
    color: var(--gs-muted);
}

/* --- Заявка ---------------------------------------------------------- */

.gs-course__form-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
    margin-bottom: 56px;
    padding: 40px;
    border: 1px solid var(--gs-border-strong);
    border-radius: calc(var(--gs-radius) + 8px);
    background:
        radial-gradient(120% 140% at 0% 0%, rgba(99, 102, 241, 0.16) 0%, rgba(99, 102, 241, 0) 60%),
        var(--gs-surface);
}

.gs-course__form-text p {
    margin: 0;
    font-size: 16px;
    line-height: 1.62;
    color: var(--gs-muted);
}

.gs-course__form {
    margin: 0;
}

.gs-wrap .gs-req {
    color: var(--gs-accent);
}

.gs-course__privacy {
    margin: 12px 0 0;
    font-size: 13px;
    line-height: 1.5;
    color: var(--gs-muted);
}

/* Заявка ушла — прячем поля, чтобы её не отправили второй раз. */
.gs-course__form--sent .gs-field,
.gs-course__form--sent .gs-form__foot,
.gs-course__form--sent .gs-course__privacy {
    display: none;
}

.gs-course__form--sent .gs-form__note {
    margin: 0;
    font-size: 16px;
}

@media (max-width: 900px) {
    .gs-course__hero {
        padding: 40px 24px;
        background-image: none !important;
    }

    .gs-course__form-wrap {
        grid-template-columns: 1fr;
        padding: 28px 22px;
        gap: 22px;
    }
}

@media (max-width: 560px) {
    .gs-course__cta .gs-btn {
        width: 100%;
        justify-content: center;
    }
}

/* --- Тарифы ---------------------------------------------------------- */

.gs-course__market {
    max-width: 780px;
    margin: 0 0 24px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--gs-muted);
}

.gs-course__plans {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 22px;
}

.gs-course__plan {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 32px 28px;
    border: 1px solid var(--gs-border);
    border-radius: var(--gs-radius);
    background: var(--gs-surface);
}

/* Тариф с рекламой — основной, поэтому он и выделен. */
.gs-course__plan--best {
    border-color: var(--gs-border-strong);
    background:
        radial-gradient(120% 130% at 100% 0%, rgba(99, 102, 241, 0.18) 0%, rgba(99, 102, 241, 0) 62%),
        var(--gs-surface);
    box-shadow: var(--gs-shadow);
}

.gs-course__plan-flag {
    position: absolute;
    top: 18px;
    right: 18px;
    padding: 5px 12px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--gs-primary) 0%, #8b5cf6 100%);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #fff;
}

.gs-course__plan-name {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--gs-muted);
}

.gs-course__price {
    margin: 10px 0 0;
    font-size: clamp(34px, 4vw, 44px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--gs-text);
}

.gs-course__price span {
    font-size: 0.55em;
    font-weight: 600;
    color: var(--gs-muted);
}

.gs-course__plan-note {
    margin: 10px 0 20px;
    font-size: 15px;
    line-height: 1.55;
    color: var(--gs-muted);
}

.gs-course__plan-list {
    flex: 1 1 auto;
    margin: 0 0 24px;
    padding: 0;
    list-style: none;
}

.gs-course__plan-list li {
    position: relative;
    margin-bottom: 11px;
    padding-left: 26px;
    font-size: 15px;
    line-height: 1.55;
    color: #cbd5e1;
}

.gs-course__plan-list li::before {
    content: "";
    position: absolute;
    top: 7px;
    left: 4px;
    width: 9px;
    height: 5px;
    border-left: 2px solid var(--gs-accent);
    border-bottom: 2px solid var(--gs-accent);
    transform: rotate(-45deg);
}

.gs-wrap .gs-course__plan .gs-btn {
    width: 100%;
    justify-content: center;
}

.gs-wrap .gs-select {
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, var(--gs-muted) 50%),
                      linear-gradient(135deg, var(--gs-muted) 50%, transparent 50%);
    background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%;
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
    padding-right: 40px;
    cursor: pointer;
}

.gs-wrap .gs-select option {
    background: var(--gs-surface);
    color: var(--gs-text);
}