/* ============================================================
   LANDING.CSS — общие стили для трёх лендингов аудиторий
   ============================================================ */

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

body {
    font-family: 'Inter', sans-serif;
    color: #0b0e2a;
    background: #fff;
    -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }

/* ── HEADER ─────────────────────────────────────────────── */
.l-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #ebebf5;
}

.l-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
    height: 68px;
    display: flex;
    align-items: center;
    gap: 32px;
}

.l-logo { display: flex; align-items: center; text-decoration: none; }

.l-nav {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-left: auto;
}

.l-nav > a {
    font-size: 0.9rem;
    font-weight: 500;
    color: #5a6476;
    text-decoration: none;
    transition: color 0.15s;
}

.l-nav > a:hover { color: #6a3cff; }

/* Audience switcher */
.audience-switcher { position: relative; }

.audience-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 0.88rem;
    font-weight: 600;
    color: #6a3cff;
    background: #f0ecff;
    border: 1.5px solid #d9d0ff;
    padding: 7px 16px;
    border-radius: 40px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.audience-btn i {
    font-size: 0.7rem;
    transition: transform 0.2s;
}

.audience-btn.active i { transform: rotate(180deg); }
.audience-btn:hover, .audience-btn.active {
    background: #e4daff;
    border-color: #b8a6ff;
}

.audience-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: #fff;
    border: 1px solid #ebebf5;
    border-radius: 14px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
    overflow: hidden;
    min-width: 220px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity 0.15s, transform 0.15s;
}

.audience-dropdown.open {
    opacity: 1;
    pointer-events: all;
    transform: translateY(0);
}

.audience-dropdown a {
    display: block;
    padding: 12px 20px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #0b0e2a;
    text-decoration: none;
    transition: background 0.1s, color 0.1s;
}

.audience-dropdown a:hover {
    background: #f7f4ff;
    color: #6a3cff;
}

.l-header-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #6a3cff, #4f7fff);
    color: #fff !important;
    font-size: 0.88rem;
    font-weight: 700;
    padding: 10px 22px;
    border-radius: 40px;
    text-decoration: none;
    white-space: nowrap;
    transition: opacity 0.15s, transform 0.15s;
    box-shadow: 0 4px 16px rgba(106,60,255,0.3);
}

.l-header-cta:hover,
.l-header-cta:visited {
    opacity: 0.9;
    transform: translateY(-1px);
    color: #fff !important;
}

/* ── HERO ────────────────────────────────────────────────── */
.l-hero {
    background: #f9f8ff;
    padding: 80px 0 30px;
    min-height: calc(100vh - 68px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

.l-hero--students { background: #f6fbff; }
.l-hero--founders { background: #f6f9f4; }

.l-hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    padding-bottom: 0;
}

.l-eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #6a3cff;
    background: #f0ecff;
    padding: 5px 14px;
    border-radius: 40px;
    margin-bottom: 22px;
}

.l-hero-text h1 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: #0b0e2a;
    margin-bottom: 20px;
}

.l-hero-text h1 em {
    font-style: normal;
    background: linear-gradient(90deg, #6a3cff, #4f7fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.l-hero-sub {
    font-size: 1.08rem;
    color: #5a6476;
    line-height: 1.72;
    margin-bottom: 36px;
    max-width: 480px;
}

.l-hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.l-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    background: linear-gradient(135deg, #6a3cff, #4f7fff);
    color: #fff !important;
    font-size: 0.97rem;
    font-weight: 700;
    padding: 15px 32px;
    border-radius: 50px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    box-shadow: 0 6px 24px rgba(106,60,255,0.35);
    transition: transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
}

.l-btn-primary:hover,
.l-btn-primary:visited {
    transform: translateY(-2px);
    box-shadow: 0 10px 32px rgba(106,60,255,0.5);
    color: #fff !important;
}

.l-btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: #6a3cff;
    font-size: 0.95rem;
    font-weight: 600;
    padding: 14px 28px;
    border-radius: 50px;
    text-decoration: none;
    border: 2px solid #d9d0ff;
    transition: border-color 0.15s, background 0.15s;
    white-space: nowrap;
}

.l-btn-ghost:hover {
    border-color: #6a3cff;
    background: #f7f4ff;
}

.l-hero-hint {
    font-size: 0.88rem;
    color: #8898aa;
    display: flex;
    align-items: center;
    gap: 6px;
}

.l-trust-row {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.l-trust-row span {
    font-size: 0.83rem;
    color: #8898aa;
    display: flex;
    align-items: center;
    gap: 6px;
}

.l-trust-row i { color: #6a3cff; font-size: 0.75rem; }

/* Hero photo */
.l-hero-photo {
    position: relative;
    align-self: flex-end;
}

.l-hero-photo img {
    width: 100%;
    border-radius: 24px;
    object-fit: cover;
    height: 480px;
    display: block;
}

.l-hero-float-card {
    position: absolute;
    bottom: 28px;
    left: -24px;
    background: #fff;
    border-radius: 16px;
    padding: 14px 20px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
    display: flex;
    align-items: center;
    gap: 12px;
}

.l-float-icon {
    width: 40px;
    height: 40px;
    background: #f0ecff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.l-float-title {
    font-size: 0.88rem;
    font-weight: 700;
    color: #0b0e2a;
}

.l-float-sub {
    font-size: 0.76rem;
    color: #8898aa;
    margin-top: 2px;
}

/* ── UTILS ───────────────────────────────────────────────── */
.l-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
}

.l-bg-grey { background: #f6f7fb; }

.l-section-head { margin-bottom: 56px; }
.l-section-head.center { text-align: center; }
.l-section-head.center .l-eyebrow-dark { margin: 0 auto 14px; }

.l-eyebrow-dark {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #6a3cff;
    margin-bottom: 14px;
}

.l-section-head h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    color: #0b0e2a;
    line-height: 1.15;
}

/* ── PAIN SECTION ────────────────────────────────────────── */
.l-pain {
    padding: 96px 0;
    background: #fff;
}

.l-pain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.l-pain-card {
    background: #f9f8ff;
    border: 1px solid #ebebf5;
    border-radius: 20px;
    padding: 32px 28px;
    transition: box-shadow 0.2s, transform 0.2s;
}

.l-pain-card:hover {
    box-shadow: 0 12px 40px rgba(106,60,255,0.08);
    transform: translateY(-4px);
}

.l-pain-icon {
    font-size: 2rem;
    margin-bottom: 18px;
}

.l-pain-card h3 {
    font-size: 1rem;
    font-weight: 700;
    color: #0b0e2a;
    margin-bottom: 10px;
    line-height: 1.4;
}

.l-pain-card p {
    font-size: 0.9rem;
    color: #5a6476;
    line-height: 1.65;
}

/* ── STEPS ───────────────────────────────────────────────── */
.l-steps { padding: 96px 0; }

.l-steps-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 0;
    align-items: start;
}

.l-step {
    background: #fff;
    border-radius: 20px;
    border: 1px solid #ebebf5;
    padding: 32px 28px;
    transition: box-shadow 0.2s, transform 0.2s;
}

.l-step:hover {
    box-shadow: 0 12px 40px rgba(106,60,255,0.08);
    transform: translateY(-4px);
}

.l-step-num {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: #6a3cff;
    margin-bottom: 16px;
}

.l-step-icon {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 18px;
}

.l-step h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #0b0e2a;
    margin-bottom: 10px;
}

.l-step p {
    font-size: 0.9rem;
    color: #5a6476;
    line-height: 1.65;
}

.l-step-arrow {
    display: flex;
    align-items: flex-start;
    padding-top: 56px;
    padding-left: 16px;
    padding-right: 16px;
    color: #c4b5fd;
    font-size: 1.1rem;
}

/* ── SPLIT ───────────────────────────────────────────────── */
.l-split { padding: 96px 0; }

.l-split-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
}

.l-split-photo img {
    width: 100%;
    border-radius: 24px;
    object-fit: cover;
    height: 460px;
}

.l-split-text h2 {
    font-size: clamp(1.6rem, 2.8vw, 2.2rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    color: #0b0e2a;
    line-height: 1.2;
    margin-bottom: 28px;
}

.l-feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 36px;
}

.l-feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.97rem;
    color: #2d3748;
    line-height: 1.5;
}

.l-feature-list i {
    color: #6a3cff;
    margin-top: 3px;
    flex-shrink: 0;
    font-size: 0.85rem;
}

/* ── CONTACT ─────────────────────────────────────────────── */
.l-contact { padding: 120px 0 140px; }

.l-contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: start;
}

.l-contact-text h2 {
    font-size: clamp(1.6rem, 2.8vw, 2.2rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    color: #0b0e2a;
    line-height: 1.2;
    margin-bottom: 16px;
}

.l-contact-text p {
    font-size: 1rem;
    color: #5a6476;
    line-height: 1.7;
    margin-bottom: 24px;
}

.l-contact-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.l-contact-badges span {
    background: #f0ecff;
    color: #6a3cff;
    font-size: 0.83rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 40px;
}

/* Form */
.l-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    background: #fff;
    border: 1px solid #ebebf5;
    border-radius: 24px;
    padding: 44px 40px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.05);
}

.l-form input,
.l-form textarea {
    width: 100%;
    padding: 13px 18px;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    color: #0b0e2a;
    background: #f9f8ff;
    border: 1.5px solid #ebebf5;
    border-radius: 12px;
    outline: none;
    transition: border-color 0.15s;
    resize: vertical;
}

.l-form input:focus,
.l-form textarea:focus {
    border-color: #a78bfa;
    background: #fff;
}

.l-form input::placeholder,
.l-form textarea::placeholder { color: #aab0be; }

.l-form .l-btn-primary { align-self: flex-start; }

.l-form-note {
    font-size: 0.78rem;
    color: #aab0be;
    margin-top: -4px;
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 1024px) {
    .l-steps-grid {
        grid-template-columns: 1fr;
    }
    .l-step-arrow { display: none; }
    .l-steps-grid { gap: 16px; }
}

@media (max-width: 768px) {
    .l-header-inner { padding: 0 20px; gap: 16px; }
    .l-nav > a { display: none; }

    .l-hero { padding: 48px 0 24px; }
    .l-hero-inner {
        grid-template-columns: 1fr;
        padding: 0 20px;
        gap: 40px;
    }
    .l-hero-photo img { height: 320px; border-radius: 20px; }
    .l-hero-float-card { left: 12px; bottom: 16px; }

    .l-pain-grid { grid-template-columns: 1fr; gap: 16px; }

    .l-split-inner { grid-template-columns: 1fr; gap: 40px; }
    .l-split-photo img { height: 280px; }
    .l-split-photo { order: -1; }

    .l-contact-inner { grid-template-columns: 1fr; gap: 40px; }

    .l-container { padding: 0 20px; }
    .l-pain, .l-steps, .l-split, .l-contact { padding: 64px 0; }
    .l-section-head { margin-bottom: 36px; }

    .l-form { padding: 24px 20px; }
    .l-form .l-btn-primary { align-self: stretch; justify-content: center; }
}

@media (max-width: 480px) {
    .l-hero-text h1 { font-size: 1.9rem; }
    .l-hero-actions { flex-direction: column; align-items: flex-start; }
    .l-btn-primary, .l-btn-ghost { width: 100%; justify-content: center; }
    .audience-btn { font-size: 0.8rem; padding: 6px 12px; }
    .l-header-cta { display: none; }
}