:root {
    --cot-red: #b82927;
    --cot-red-dark: #9f1f1f;
    --cot-rose: #e2b0c6;
    --cot-ink: #1f1f1f;
    --cot-muted: #6d6d6d;
    --cot-surface: #f3f3f3;
    --cot-card: #ffffff;
    --cot-border: #e4e4e4;
    --cot-danger: #df1d1d;
    --cot-success: #18794e;
    --cot-shadow: 0 18px 50px rgba(0, 0, 0, 0.08);
    --cot-radius-xl: 24px;
    --cot-radius-lg: 18px;
    --cot-transition: 0.25s ease;
}

.cot-lead-form-wrap {
    background: linear-gradient(180deg, rgba(255, 255, 255, 1) 0%, rgba(243, 243, 243, 1) 100%);
    border: 1px solid var(--cot-border);
    padding: 28px;
    border-radius: 28px;
    box-shadow: var(--cot-shadow);
    overflow: hidden;
}

.cot-lead-form {
    max-width: 100%;
}

.cot-lead-form__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 28px;
    margin-bottom: 28px;
}

.cot-field-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cot-field-group--full {
    margin-bottom: 26px;
}

.cot-field-group label {
    color: var(--cot-ink);
    font-size: 16px;
    font-weight: 700;
    line-height: 1.3;
}

.cot-field-group label span {
    color: var(--cot-red);
}

.cot-field-group input,
.cot-field-group textarea {
    width: 100%;
    border: 1px solid transparent;
    border-radius: var(--cot-radius-lg);
    background: var(--cot-card);
    color: var(--cot-ink);
    font-size: 16px;
    line-height: 1.5;
    padding: 18px 20px;
    box-shadow: inset 0 0 0 1px var(--cot-border);
    transition: border-color var(--cot-transition), box-shadow var(--cot-transition), transform var(--cot-transition);
}

.cot-field-group textarea {
    min-height: 220px;
    resize: vertical;
}

.cot-field-group input::placeholder,
.cot-field-group textarea::placeholder {
    color: #9b9b9b;
}

.cot-field-group input:focus,
.cot-field-group textarea:focus {
    outline: none;
    border-color: var(--cot-rose);
    box-shadow: 0 0 0 4px rgba(226, 176, 198, 0.18), inset 0 0 0 1px rgba(184, 41, 39, 0.2);
    transform: translateY(-1px);
}

.cot-field-group.has-error input,
.cot-field-group.has-error textarea {
    border-color: rgba(223, 29, 29, 0.35);
    box-shadow: 0 0 0 4px rgba(223, 29, 29, 0.08), inset 0 0 0 1px rgba(223, 29, 29, 0.3);
}

.cot-field-error {
    min-height: 18px;
    color: var(--cot-danger);
    font-size: 14px;
    line-height: 1.35;
}

.cot-form-notice {
    display: none;
    margin: 0 0 18px;
    padding: 16px 18px;
    border-radius: 16px;
    font-size: 15px;
    line-height: 1.5;
}

.cot-form-notice.is-loading,
.cot-form-notice.is-success,
.cot-form-notice.is-error {
    display: block;
}

.cot-form-notice.is-loading {
    background: rgba(31, 31, 31, 0.05);
    color: var(--cot-ink);
}

.cot-form-notice.is-success {
    background: rgba(24, 121, 78, 0.1);
    color: var(--cot-success);
}

.cot-form-notice.is-error {
    background: rgba(223, 29, 29, 0.08);
    color: var(--cot-danger);
}

.cot-submit-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    min-width: 220px;
    min-height: 62px;
    border: 0;
    border-radius: 18px;
    padding: 16px 26px;
    background: linear-gradient(135deg, var(--cot-red) 0%, var(--cot-red-dark) 100%);
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 14px 28px rgba(184, 41, 39, 0.26);
    transition: transform var(--cot-transition), box-shadow var(--cot-transition), opacity var(--cot-transition);
}

.cot-submit-button:hover,
.cot-submit-button:focus {
    transform: translateY(-2px);
    box-shadow: 0 18px 30px rgba(184, 41, 39, 0.3);
    outline: none;
}

.cot-submit-button:disabled {
    opacity: 0.75;
    cursor: not-allowed;
}

.cot-button-loader {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    display: none;
    animation: cotSpin 0.8s linear infinite;
}

.cot-lead-form.is-submitting .cot-button-loader {
    display: inline-block;
}

@keyframes cotSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@media (max-width: 767px) {
    .cot-lead-form-wrap {
        padding: 20px;
        border-radius: 22px;
    }

    .cot-lead-form__grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .cot-field-group input,
    .cot-field-group textarea {
        font-size: 16px;
        padding: 16px 18px;
        border-radius: 16px;
    }

    .cot-field-group textarea {
        min-height: 180px;
    }

    .cot-submit-button {
        width: 100%;
        min-width: 100%;
        font-size: 18px;
        min-height: 58px;
    }
}