/* === LEAD-FORM.CSS ===
 * ai-platform.space/www/assets/css/lead-form.css
 * НАЗНАЧЕНИЕ: стили формы заявки + waiting screen с countdown
 * СВЯЗИ: index.php (.sf-lead-form), lead-form.js (toggle классов)
 * ИСПОЛЬЗУЕТ ПЕРЕМЕННЫЕ: --bg-card, --border, --gold, --electric, --text-* из style.css
 * РАЗМЕР: ~310 строк
 */

/* ==================== CONTAINER ==================== */
.sf-lead-form-block {
    margin-top: 32px;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: border-color 0.25s ease;
}
.sf-lead-form-block:hover { border-color: var(--border-hover); }

.sf-lead-form-header {
    margin-bottom: 22px;
    text-align: center;
}
.sf-lead-form-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}
.sf-lead-form-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ==================== FORM GRID ==================== */
.sf-lead-form {
    display: grid;
    gap: 14px;
}

.sf-field { display: flex; flex-direction: column; gap: 6px; }

.sf-field-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.sf-input,
.sf-textarea {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.4;
    outline: none;
    transition: border-color 0.2s ease, background 0.2s ease;
}
.sf-input::placeholder,
.sf-textarea::placeholder { color: var(--text-muted); }
.sf-input:focus,
.sf-textarea:focus {
    border-color: var(--gold);
    background: var(--bg-card);
}
.sf-input:disabled,
.sf-textarea:disabled { opacity: 0.5; cursor: not-allowed; }

.sf-textarea { resize: vertical; min-height: 80px; max-height: 160px; }

/* ==================== TABS (telegram / phone) ==================== */
.sf-contact-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 8px;
}
.sf-tab {
    padding: 10px 12px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    border-radius: 7px;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.sf-tab:hover { color: var(--text-primary); }
.sf-tab.active {
    background: var(--bg-card);
    color: var(--gold);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
}
.sf-tab svg { width: 14px; height: 14px; }

.sf-tab-pane { display: none; }
.sf-tab-pane.active { display: block; }

/* ==================== HONEYPOT ==================== */
.sf-honeypot {
    position: absolute !important;
    left: -9999px !important;
    top: -9999px !important;
    width: 1px !important;
    height: 1px !important;
    opacity: 0 !important;
    pointer-events: none !important;
    tab-index: -1;
}

/* ==================== SUBMIT ==================== */
.sf-lead-submit {
    margin-top: 6px;
    width: 100%;
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    /* класс sf-btn-primary уже из style.css даёт золотой градиент */
}
.sf-lead-submit:disabled { opacity: 0.6; cursor: wait; transform: none !important; box-shadow: none !important; }

.sf-lead-hint {
    margin-top: 8px;
    font-size: 13px;
    color: var(--text-muted);
    text-align: center;
}

.sf-lead-error {
    margin-top: 10px;
    padding: 10px 12px;
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #f87171;
    font-size: 13px;
    border-radius: 8px;
    display: none;
}
.sf-lead-error.visible { display: block; }
html.light-theme .sf-lead-error { color: #b91c1c; background: rgba(239, 68, 68, 0.06); }

/* ==================== WAITING SCREEN (overlay) ==================== */
.sf-wait-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(10, 10, 10, 0.92);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    align-items: center;
    justify-content: center;
    padding: 24px;
    animation: sf-wait-fade 0.3s ease both;
}
html.light-theme .sf-wait-overlay { background: rgba(240, 236, 228, 0.95); }
.sf-wait-overlay.visible { display: flex; }

@keyframes sf-wait-fade {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.sf-wait-card {
    max-width: 480px;
    width: 100%;
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 18px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.sf-wait-check {
    width: 56px;
    height: 56px;
    margin: 0 auto 18px;
    background: var(--green-dim);
    color: var(--green);
    border: 1px solid rgba(16, 185, 129, 0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
}

.sf-wait-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.sf-wait-text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 24px;
}

.sf-wait-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-bottom: 22px;
}

.sf-wait-spinner {
    width: 28px;
    height: 28px;
    border: 3px solid var(--border-hover);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: sf-spin 0.9s linear infinite;
}
@keyframes sf-spin { to { transform: rotate(360deg); } }

.sf-wait-countdown {
    font-family: var(--font-display);
    font-size: 56px;
    font-weight: 800;
    color: var(--gold);
    line-height: 1;
    font-variant-numeric: tabular-nums;
    min-width: 80px;
    text-align: center;
    background: linear-gradient(135deg, var(--gold), var(--electric));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sf-wait-countdown-suffix {
    font-size: 18px;
    color: var(--text-muted);
    font-family: var(--font-body);
}

.sf-wait-now {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    background: transparent;
    border: 1px solid var(--border-hover);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
    border-radius: 10px;
    cursor: pointer;
    text-decoration: none;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}
.sf-wait-now:hover {
    border-color: var(--gold);
    background: var(--gold-dim);
    color: var(--gold);
}
.sf-wait-now svg { width: 16px; height: 16px; }

/* ==================== MOBILE ==================== */
@media (max-width: 600px) {
    .sf-lead-form-block { padding: 22px 18px; }
    .sf-lead-form-title { font-size: 19px; }
    .sf-wait-card       { padding: 28px 20px; }
    .sf-wait-title      { font-size: 19px; }
    .sf-wait-countdown  { font-size: 46px; }
}

/* ==================== REDUCED MOTION ==================== */
@media (prefers-reduced-motion: reduce) {
    .sf-wait-spinner { animation: none; border-top-color: var(--gold); }
    .sf-wait-overlay { animation: none; }
}