/* ========== FORM STYLES ========== */

/* Общие стили формы */
.request-form {
    background: white;
    padding: 45px;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border: 2px solid #e8eef5;
    position: relative;
    overflow: hidden;
}

.request-form:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(to right, #3498db, #e74c3c);
}

.request-form h3 {
    color: #2c3e50;
    margin-bottom: 35px;
    text-align: center;
    font-size: 1.8rem;
    font-weight: 700;
}

/* Уведомление формы */
.form-notice {
    text-align: center;
    color: #7f8c8d;
    margin-bottom: 30px;
    font-size: 1rem;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #3498db;
}

/* Группы полей */
.form-group {
    margin-bottom: 30px;
    position: relative;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    color: #2c3e50;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 18px 20px;
    border: 2px solid #e0e6ed;
    border-radius: 10px;
    font-size: 1.05rem;
    font-family: inherit;
    transition: all 0.3s;
    background: #f8f9fa;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    background: white;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

/* Специфические стили полей */
.form-group textarea {
    resize: vertical;
    min-height: 140px;
    line-height: 1.6;
}

/* Чекбокс */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    margin-bottom: 30px;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 5px;
    cursor: pointer;
    accent-color: #3498db;
    flex-shrink: 0;
}

.checkbox-group label {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.5;
    cursor: pointer;
    user-select: none;
}

.checkbox-group a {
    color: #3498db;
    text-decoration: none;
}

.checkbox-group a:hover {
    text-decoration: underline;
}

/* Кнопка отправки */
.btn-submit {
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-submit:hover {
    background: linear-gradient(135deg, #2980b9, #1f639e);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.4);
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

.btn-submit .fa-spinner {
    animation: spin 1s linear infinite;
}

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

/* Сообщения формы */
.form-message {
    margin-top: 25px;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    font-weight: 500;
    font-size: 1rem;
    display: none;
    animation: fadeIn 0.3s ease;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Подсказки и валидация */
.form-hint {
    display: block;
    margin-top: 5px;
    font-size: 0.85rem;
    color: #7f8c8d;
}

.validation-message {
    display: none;
    margin-top: 5px;
    font-size: 0.85rem;
    padding: 5px 10px;
    border-radius: 4px;
}

.validation-message.error {
    display: block;
    color: #e74c3c;
    background: rgba(231, 76, 60, 0.1);
    border: 1px solid rgba(231, 76, 60, 0.2);
}

.validation-message.success {
    display: block;
    color: #27ae60;
    background: rgba(39, 174, 96, 0.1);
    border: 1px solid rgba(39, 174, 96, 0.2);
}

/* Стили ошибок/успеха для полей */
.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #e74c3c;
    background: rgba(231, 76, 60, 0.05);
}

.form-group input.success,
.form-group select.success,
.form-group textarea.success {
    border-color: #27ae60;
    background: rgba(39, 174, 96, 0.05);
}

/* Анимация успешной отправки */
.success-animation {
    text-align: center;
    padding: 20px;
}

.success-animation .checkmark {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: block;
    stroke-width: 2;
    stroke: #27ae60;
    stroke-miterlimit: 10;
    box-shadow: inset 0 0 0 #27ae60;
    animation: fill .4s ease-in-out .4s forwards, scale .3s ease-in-out .9s both;
}

.success-animation .checkmark__circle {
    stroke-dasharray: 166;
    stroke-dashoffset: 166;
    stroke-width: 2;
    stroke-miterlimit: 10;
    stroke: #27ae60;
    fill: none;
    animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.success-animation .checkmark__check {
    transform-origin: 50% 50%;
    stroke-dasharray: 48;
    stroke-dashoffset: 48;
    animation: stroke 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.8s forwards;
}

@keyframes stroke {
    100% {
        stroke-dashoffset: 0;
    }
}

@keyframes scale {
    0%, 100% {
        transform: none;
    }
    50% {
        transform: scale3d(1.1, 1.1, 1);
    }
}

@keyframes fill {
    100% {
        box-shadow: inset 0 0 0 100px #27ae60;
    }
}

/* Темная тема для формы */
@media (prefers-color-scheme: dark) {
    .request-form {
        background: #2c3e50;
        color: #ecf0f1;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        background: #34495e;
        border-color: #4a6572;
        color: #ecf0f1;
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
        background: #2c3e50;
        border-color: #3498db;
    }

    .form-notice {
        background: #34495e;
        color: #bdc3c7;
        border-left-color: #3498db;
    }

    .checkbox-group {
        background: #34495e;
    }

    .checkbox-group label {
        color: #bdc3c7;
    }
}

/* Адаптивность формы */
@media (max-width: 768px) {
    .request-form {
        padding: 30px 25px;
    }

    .request-form h3 {
        font-size: 1.6rem;
        margin-bottom: 25px;
    }

    .form-group {
        margin-bottom: 20px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 16px;
        font-size: 16px; /* Для отключения зума на iOS */
    }

    .checkbox-group {
        padding: 12px;
    }

    .checkbox-group label {
        font-size: 0.85rem;
    }

    .btn-submit {
        padding: 16px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .request-form {
        padding: 25px 20px;
    }

    .request-form h3 {
        font-size: 1.4rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 14px;
    }

    .success-animation .checkmark {
        width: 60px;
        height: 60px;
    }
}