/**
 * CSS Responsivo Adicional para o Frontend Público do KNC
 * Melhorias de responsividade e experiência do usuário
 */

/* ===== MELHORIAS PARA TABLETS ===== */
@media (max-width: 1024px) {
    .knc-form-container {
        padding: 20px;
        margin: 20px auto;
    }
    
    .knc-form-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .knc-form-row {
        flex-direction: column;
        gap: 15px;
    }
    
    .knc-form-col-half,
    .knc-form-col-third {
        width: 100%;
    }
    
    .knc-progress-bar {
        margin-bottom: 20px;
    }
    
    .knc-progress-steps {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .knc-step {
        flex: 1;
        min-width: 120px;
    }
}

/* ===== MELHORIAS PARA MOBILE ===== */
@media (max-width: 768px) {
    .knc-form-container {
        padding: 15px;
        margin: 10px;
        border-radius: 12px;
    }
    
    .knc-form-title {
        font-size: 1.8em;
        text-align: center;
        margin-bottom: 15px;
    }
    
    .knc-form-subtitle {
        font-size: 1em;
        text-align: center;
        margin-bottom: 25px;
    }
    
    /* Formulário de cadastro mobile */
    .knc-form-section {
        margin-bottom: 25px;
        padding: 15px;
        background: rgba(248, 249, 250, 0.5);
        border-radius: 8px;
        border-left: 4px solid var(--knc-secondary);
    }
    
    .knc-form-section h3 {
        font-size: 1.1em;
        margin-bottom: 15px;
        color: var(--knc-primary);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    
    .knc-form-group {
        margin-bottom: 20px;
    }
    
    .knc-label {
        font-size: 14px;
        font-weight: 600;
        margin-bottom: 8px;
        display: block;
    }
    
    .knc-input,
    .knc-textarea,
    .knc-select {
        width: 100%;
        padding: 12px;
        font-size: 16px; /* Previne zoom no iOS */
        border-radius: 8px;
        border: 2px solid #e1e1e1;
        transition: all 0.3s ease;
    }
    
    .knc-input:focus,
    .knc-textarea:focus,
    .knc-select:focus {
        border-color: var(--knc-secondary);
        box-shadow: 0 0 0 3px rgba(242, 92, 5, 0.1);
        outline: none;
    }
    
    .knc-textarea {
        min-height: 100px;
        resize: vertical;
    }
    
    /* Botões mobile */
    .knc-button {
        width: 100%;
        padding: 15px;
        font-size: 16px;
        font-weight: 600;
        border-radius: 8px;
        margin-bottom: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        transition: all 0.3s ease;
    }
    
    .knc-button:hover:not(:disabled) {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    }
    
    .knc-button:active {
        transform: translateY(0);
    }
    
    .knc-button-group {
        display: flex;
        flex-direction: column;
        gap: 10px;
        margin-top: 20px;
    }
    
    /* Upload de arquivo mobile */
    .knc-file-upload-area {
        padding: 30px 15px;
        border: 2px dashed #ccc;
        border-radius: 12px;
        text-align: center;
        background: rgba(248, 249, 250, 0.5);
        transition: all 0.3s ease;
        cursor: pointer;
    }
    
    .knc-file-upload-area:hover {
        border-color: var(--knc-secondary);
        background: rgba(242, 92, 5, 0.05);
    }
    
    .knc-file-upload-area.knc-dragover {
        border-color: var(--knc-secondary);
        background: rgba(242, 92, 5, 0.1);
        transform: scale(1.02);
    }
    
    .knc-file-upload-icon {
        font-size: 3em;
        color: var(--knc-secondary);
        margin-bottom: 15px;
    }
    
    .knc-file-upload-text {
        font-size: 16px;
        color: var(--knc-gray-dark);
        margin-bottom: 10px;
    }
    
    .knc-file-upload-hint {
        font-size: 12px;
        color: var(--knc-gray-medium);
    }
    
    .knc-file-preview {
        margin-top: 15px;
        padding: 15px;
        background: rgba(40, 167, 69, 0.1);
        border: 1px solid rgba(40, 167, 69, 0.2);
        border-radius: 8px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    
    .knc-file-preview-icon {
        font-size: 24px;
        color: var(--knc-success);
    }
    
    .knc-file-preview-info {
        flex: 1;
    }
    
    .knc-file-preview-name {
        font-weight: 600;
        color: var(--knc-success);
        margin-bottom: 2px;
    }
    
    .knc-file-preview-size {
        font-size: 12px;
        color: var(--knc-gray-medium);
    }
    
    .knc-file-preview-remove {
        background: none;
        border: none;
        color: var(--knc-error);
        font-size: 18px;
        cursor: pointer;
        padding: 5px;
        border-radius: 50%;
        transition: background 0.3s ease;
    }
    
    .knc-file-preview-remove:hover {
        background: rgba(220, 53, 69, 0.1);
    }
    
    /* Progress bar mobile */
    .knc-progress-container {
        margin-bottom: 25px;
    }
    
    .knc-progress-steps {
        display: flex;
        justify-content: space-between;
        margin-bottom: 15px;
        position: relative;
    }
    
    .knc-progress-steps::before {
        content: '';
        position: absolute;
        top: 15px;
        left: 15px;
        right: 15px;
        height: 2px;
        background: #e1e1e1;
        z-index: 1;
    }
    
    .knc-progress-line {
        position: absolute;
        top: 15px;
        left: 15px;
        height: 2px;
        background: linear-gradient(90deg, var(--knc-primary), var(--knc-secondary));
        z-index: 2;
        transition: width 0.5s ease;
    }
    
    .knc-step {
        display: flex;
        flex-direction: column;
        align-items: center;
        position: relative;
        z-index: 3;
        flex: 1;
    }
    
    .knc-step-circle {
        width: 30px;
        height: 30px;
        border-radius: 50%;
        background: #e1e1e1;
        color: var(--knc-gray-medium);
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: bold;
        font-size: 12px;
        margin-bottom: 8px;
        transition: all 0.3s ease;
    }
    
    .knc-step.knc-active .knc-step-circle {
        background: var(--knc-secondary);
        color: var(--knc-white);
        transform: scale(1.1);
    }
    
    .knc-step.knc-completed .knc-step-circle {
        background: var(--knc-success);
        color: var(--knc-white);
    }
    
    .knc-step-label {
        font-size: 11px;
        text-align: center;
        color: var(--knc-gray-medium);
        font-weight: 500;
        line-height: 1.2;
    }
    
    .knc-step.knc-active .knc-step-label {
        color: var(--knc-secondary);
        font-weight: 600;
    }
    
    .knc-step.knc-completed .knc-step-label {
        color: var(--knc-success);
    }
    
    /* Validação mobile */
    .knc-field-error {
        color: var(--knc-error);
        font-size: 12px;
        margin-top: 5px;
        display: flex;
        align-items: center;
        gap: 5px;
    }
    
    .knc-field-error::before {
        content: '⚠️';
        font-size: 14px;
    }
    
    .knc-field-success {
        color: var(--knc-success);
        font-size: 12px;
        margin-top: 5px;
        display: flex;
        align-items: center;
        gap: 5px;
    }
    
    .knc-field-success::before {
        content: '✅';
        font-size: 14px;
    }
    
    .knc-input.knc-error {
        border-color: var(--knc-error);
        box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
    }
    
    .knc-input.knc-success {
        border-color: var(--knc-success);
        box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
    }
    
    /* Mensagens mobile */
    .knc-message {
        padding: 15px;
        border-radius: 8px;
        margin-bottom: 20px;
        display: flex;
        align-items: flex-start;
        gap: 10px;
        font-size: 14px;
        line-height: 1.5;
    }
    
    .knc-message-icon {
        font-size: 18px;
        flex-shrink: 0;
        margin-top: 2px;
    }
    
    .knc-message.knc-success {
        background: rgba(40, 167, 69, 0.1);
        border: 1px solid rgba(40, 167, 69, 0.2);
        color: var(--knc-success);
    }
    
    .knc-message.knc-error {
        background: rgba(220, 53, 69, 0.1);
        border: 1px solid rgba(220, 53, 69, 0.2);
        color: var(--knc-error);
    }
    
    .knc-message.knc-warning {
        background: rgba(255, 193, 7, 0.1);
        border: 1px solid rgba(255, 193, 7, 0.2);
        color: #856404;
    }
    
    .knc-message.knc-info {
        background: rgba(23, 162, 184, 0.1);
        border: 1px solid rgba(23, 162, 184, 0.2);
        color: var(--knc-info);
    }
    
    /* Login form mobile */
    .knc-login-container {
        max-width: 400px;
        margin: 20px auto;
        padding: 30px 20px;
        background: var(--knc-white);
        border-radius: 12px;
        box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    }
    
    .knc-login-header {
        text-align: center;
        margin-bottom: 30px;
    }
    
    .knc-login-logo {
        width: 80px;
        height: 80px;
        margin: 0 auto 20px;
        background: linear-gradient(135deg, var(--knc-primary), var(--knc-secondary));
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 32px;
        color: var(--knc-white);
    }
    
    .knc-login-title {
        color: var(--knc-primary);
        font-size: 1.5em;
        font-weight: bold;
        margin-bottom: 8px;
    }
    
    .knc-login-subtitle {
        color: var(--knc-gray-medium);
        font-size: 14px;
    }
    
    .knc-login-form {
        margin-bottom: 20px;
    }
    
    .knc-login-footer {
        text-align: center;
        padding-top: 20px;
        border-top: 1px solid #e1e1e1;
    }
    
    .knc-login-footer a {
        color: var(--knc-secondary);
        text-decoration: none;
        font-weight: 500;
        font-size: 14px;
    }
    
    .knc-login-footer a:hover {
        text-decoration: underline;
    }
}

/* ===== MELHORIAS PARA TELAS PEQUENAS ===== */
@media (max-width: 480px) {
    .knc-form-container {
        padding: 10px;
        margin: 5px;
    }
    
    .knc-form-title {
        font-size: 1.5em;
    }
    
    .knc-form-subtitle {
        font-size: 0.9em;
    }
    
    .knc-form-section {
        padding: 12px;
        margin-bottom: 20px;
    }
    
    .knc-form-section h3 {
        font-size: 1em;
    }
    
    .knc-input,
    .knc-textarea,
    .knc-select {
        padding: 10px;
        font-size: 15px;
    }
    
    .knc-button {
        padding: 12px;
        font-size: 15px;
    }
    
    .knc-file-upload-area {
        padding: 20px 10px;
    }
    
    .knc-file-upload-icon {
        font-size: 2.5em;
    }
    
    .knc-file-upload-text {
        font-size: 14px;
    }
    
    .knc-progress-steps {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .knc-step {
        min-width: 60px;
    }
    
    .knc-step-circle {
        width: 25px;
        height: 25px;
        font-size: 11px;
    }
    
    .knc-step-label {
        font-size: 10px;
    }
    
    .knc-login-container {
        margin: 10px;
        padding: 20px 15px;
    }
    
    .knc-login-logo {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .knc-login-title {
        font-size: 1.3em;
    }
}

/* ===== MELHORIAS DE ACESSIBILIDADE ===== */

/* Alto contraste */
@media (prefers-contrast: high) {
    .knc-input,
    .knc-textarea,
    .knc-select {
        border-width: 3px;
    }
    
    .knc-button {
        border-width: 3px;
        font-weight: bold;
    }
    
    .knc-message {
        border-width: 2px;
        font-weight: 500;
    }
}

/* Redução de movimento */
@media (prefers-reduced-motion: reduce) {
    .knc-button,
    .knc-input,
    .knc-textarea,
    .knc-select,
    .knc-file-upload-area,
    .knc-step-circle,
    .knc-progress-line {
        transition: none;
    }
    
    .knc-button:hover {
        transform: none;
    }
    
    .knc-file-upload-area.knc-dragover {
        transform: none;
    }
    
    .knc-step.knc-active .knc-step-circle {
        transform: none;
    }
}

/* ===== UTILITÁRIOS MOBILE ===== */

/* Toque amigável */
.knc-touch-target {
    min-height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Scroll suave */
.knc-smooth-scroll {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

/* Prevenção de zoom */
.knc-no-zoom {
    font-size: 16px !important;
}

/* Sticky elements */
.knc-sticky-bottom {
    position: sticky;
    bottom: 0;
    background: var(--knc-white);
    padding: 15px;
    border-top: 1px solid #e1e1e1;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 10;
}

/* Loading states mobile */
.knc-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.knc-loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e1e1e1;
    border-top: 4px solid var(--knc-secondary);
    border-radius: 50%;
    animation: kncSpin 1s linear infinite;
}

.knc-loading-text {
    margin-top: 15px;
    color: var(--knc-gray-dark);
    font-weight: 500;
}

@keyframes kncSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== MELHORIAS PARA PWA ===== */

/* Viewport safe areas */
.knc-safe-area-top {
    padding-top: env(safe-area-inset-top);
}

.knc-safe-area-bottom {
    padding-bottom: env(safe-area-inset-bottom);
}

.knc-safe-area-left {
    padding-left: env(safe-area-inset-left);
}

.knc-safe-area-right {
    padding-right: env(safe-area-inset-right);
}

/* Orientação */
@media (orientation: landscape) and (max-height: 500px) {
    .knc-form-container {
        padding: 10px;
    }
    
    .knc-form-section {
        padding: 10px;
        margin-bottom: 15px;
    }
    
    .knc-login-container {
        padding: 15px;
    }
    
    .knc-login-logo {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
}