/**
 * Expresso Modal - CSS Core
 * Sistema modular base para todos os tipos de modal
 * Usa apenas CSS Variables (sem valores hard-coded)
 */

/* === RESET E BASE === */
.expresso-modal * {
    box-sizing: border-box;
}

/* === OVERLAY === */
.expresso-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--expresso-z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--expresso-spacing-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--expresso-transition-normal);
}

.expresso-modal.is-open {
    opacity: 1;
    visibility: visible;
}

.expresso-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
}

/* Backdrop blur se habilitado */
.expresso-modal[data-backdrop-blur="true"] .expresso-modal-overlay {
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

/* === CONTAINER PRINCIPAL === */
.expresso-modal-container {
    position: relative;
    background: var(--expresso-background-color);
    color: var(--expresso-text-primary);
    border-radius: var(--expresso-border-radius);
    box-shadow: var(--expresso-shadow-modal);
    max-width: var(--expresso-modal-width);
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.95) translateY(20px);
    transition: all var(--expresso-animation-duration) var(--expresso-animation-easing);
}

.expresso-modal.is-open .expresso-modal-container {
    transform: scale(1) translateY(0);
}

/* Desabilitar animações se configurado */
.expresso-modal[data-animations="false"] .expresso-modal-container {
    transition: none;
    transform: none;
}

/* === HEADER === */
.expresso-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--expresso-spacing-xl) var(--expresso-spacing-2xl) var(--expresso-spacing-lg);
    border-bottom: var(--expresso-border-width) solid var(--expresso-border-color);
    background: color-mix(in srgb, var(--expresso-background-color) 97%, var(--expresso-text-primary) 3%);
}

.expresso-modal-header h3 {
    margin: 0;
    font-size: var(--expresso-font-size-xl);
    font-weight: var(--expresso-font-weight-semibold);
    color: var(--expresso-text-primary);
    line-height: var(--expresso-line-height-tight);
}

.expresso-modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--expresso-text-secondary);
    cursor: pointer;
    padding: var(--expresso-spacing-xs);
    line-height: 1;
    border-radius: var(--expresso-border-radius-sm);
    transition: all var(--expresso-transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    /* CORREÇÃO: Garantir que o botão seja clicável */
    position: relative;
    z-index: 10;
    flex-shrink: 0;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    outline: none;
}

.expresso-modal-close:hover,
.expresso-modal-close:focus {
    background: color-mix(in srgb, var(--expresso-text-secondary) 10%, transparent);
    color: var(--expresso-text-primary);
}

.expresso-modal-close:active {
    background: color-mix(in srgb, var(--expresso-text-secondary) 20%, transparent);
    transform: scale(0.95);
}

/* CORREÇÃO: Fallback para navegadores que não suportam color-mix */
@supports not (background: color-mix(in srgb, black 10%, white)) {
    .expresso-modal-close:hover,
    .expresso-modal-close:focus {
        background: rgba(128, 128, 128, 0.1);
        color: var(--expresso-text-primary);
    }
    
    .expresso-modal-close:active {
        background: rgba(128, 128, 128, 0.2);
    }
}

/* === CONTENT === */
.expresso-modal-content {
    padding: var(--expresso-spacing-2xl);
    max-height: calc(90vh - 80px);
    overflow-y: auto;
    background: var(--expresso-background-color);
    color: var(--expresso-text-primary);
}

/* === PROGRESS BAR === */
.expresso-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--expresso-spacing-3xl);
    gap: var(--expresso-spacing-md);
}

.progress-step {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--expresso-border-color);
    color: var(--expresso-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--expresso-font-size-sm);
    font-weight: var(--expresso-font-weight-semibold);
    transition: all var(--expresso-transition-normal);
    position: relative;
}

.progress-step.active {
    background: var(--expresso-primary-color);
    color: white;
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--expresso-primary-color) 20%, transparent);
}

.progress-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    width: var(--expresso-spacing-md);
    height: 2px;
    background: var(--expresso-border-color);
    transition: background var(--expresso-transition-normal);
}

.progress-step.active:not(:last-child)::after {
    background: var(--expresso-primary-color);
}

/* === FORM ELEMENTS === */
.form-group {
    margin-bottom: var(--expresso-spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--expresso-spacing-sm);
    font-weight: var(--expresso-font-weight-medium);
    color: var(--expresso-text-primary);
    font-size: var(--expresso-font-size-sm);
}

.form-group input {
    width: 100%;
    padding: var(--expresso-input-padding);
    border: var(--expresso-border-width-thick) solid var(--expresso-border-color);
    border-radius: var(--expresso-border-radius-sm);
    font-size: var(--expresso-font-size);
    transition: all var(--expresso-transition-fast);
    background: var(--expresso-background-color);
    color: var(--expresso-text-primary);
    height: var(--expresso-input-height);
}

.form-group input:focus {
    outline: none;
    border-color: var(--expresso-border-color-focus);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--expresso-primary-color) 10%, transparent);
}

.form-group input:invalid {
    border-color: var(--expresso-error-color);
}

.form-group input:invalid:focus {
    border-color: var(--expresso-error-color);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--expresso-error-color) 10%, transparent);
}

/* === PHONE INPUT CONTAINER === */
.phone-input-container {
    display: flex;
    gap: 0;
    align-items: stretch;
}

.country-code-select {
    min-width: 100px;
    max-width: 100px;
    padding: var(--expresso-spacing-md) var(--expresso-spacing-sm);
    border: var(--expresso-border-width-thick) solid var(--expresso-border-color);
    border-radius: var(--expresso-border-radius-sm) 0 0 var(--expresso-border-radius-sm);
    border-right: none;
    font-size: 13px;
    background: var(--expresso-background-color);
    color: var(--expresso-text-primary);
    cursor: pointer;
    transition: all var(--expresso-transition-fast);
    text-align: center;
    line-height: 1.3;
}

.country-code-select:focus {
    outline: none;
    border-color: var(--expresso-border-color-focus);
    z-index: 1;
}

.country-code-select:focus + #phone-input {
    border-color: var(--expresso-border-color-focus);
}

.phone-input-container input {
    flex: 1;
    border-radius: 0 var(--expresso-border-radius-sm) var(--expresso-border-radius-sm) 0;
    border-left: none;
    font-size: var(--expresso-font-size-lg);
    font-weight: var(--expresso-font-weight-medium);
}

.phone-input-container:focus-within {
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--expresso-primary-color) 10%, transparent);
    border-radius: var(--expresso-border-radius-sm);
}

/* === BUTTONS === */
.btn-primary {
    width: 100%;
    height: var(--expresso-button-height);
    padding: var(--expresso-button-padding);
    background: var(--expresso-primary-color);
    color: white;
    border: none;
    border-radius: var(--expresso-border-radius-sm);
    font-size: var(--expresso-font-size);
    font-weight: var(--expresso-font-weight-semibold);
    cursor: pointer;
    transition: all var(--expresso-transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--expresso-spacing-sm);
    text-decoration: none;
}

.btn-primary:hover {
    background: var(--expresso-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--expresso-shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    background: var(--expresso-border-color);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    color: var(--expresso-text-secondary);
}

.btn-link {
    background: none;
    border: none;
    color: var(--expresso-primary-color);
    cursor: pointer;
    font-size: var(--expresso-font-size-sm);
    padding: var(--expresso-spacing-sm);
    border-radius: var(--expresso-border-radius-sm);
    transition: all var(--expresso-transition-fast);
    text-decoration: none;
}

.btn-link:hover {
    background: color-mix(in srgb, var(--expresso-primary-color) 10%, transparent);
    color: var(--expresso-primary-hover);
}

/* === FIELD HINTS === */
.field-hint {
    margin-top: var(--expresso-spacing-xs);
    font-size: 12px;
    color: var(--expresso-text-secondary);
}

/* === OTP INPUT === */
.otp-input {
    text-align: center;
    font-size: 24px;
    font-weight: var(--expresso-font-weight-semibold);
    letter-spacing: 8px;
    font-family: 'Courier New', monospace;
}

/* === STEP FOOTER === */
.step-footer {
    margin-top: var(--expresso-spacing-2xl);
    text-align: center;
}

.step-footer small {
    color: var(--expresso-text-secondary);
    font-size: 12px;
    display: block;
    margin-bottom: var(--expresso-spacing-lg);
}

.step-footer .btn-link {
    margin: 0 var(--expresso-spacing-sm);
}

/* === SUCCESS STATE === */
.auth-step.success {
    text-align: center;
}

.success-icon {
    width: 64px;
    height: 64px;
    background: var(--expresso-success-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: bold;
    margin: 0 auto var(--expresso-spacing-xl);
    animation: successPulse 0.6s ease-out;
}

@keyframes successPulse {
    0% { transform: scale(0); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* === ERROR MESSAGES === */
.expresso-error {
    background: color-mix(in srgb, var(--expresso-error-color) 10%, transparent);
    border: var(--expresso-border-width) solid color-mix(in srgb, var(--expresso-error-color) 30%, transparent);
    color: var(--expresso-error-color);
    padding: var(--expresso-spacing-md) var(--expresso-spacing-lg);
    border-radius: var(--expresso-border-radius-sm);
    font-size: var(--expresso-font-size-sm);
    margin-bottom: var(--expresso-spacing-lg);
}

/* === LOADING STATE === */
.expresso-loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: color-mix(in srgb, var(--expresso-background-color) 95%, transparent);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--expresso-border-color);
    border-top: 3px solid var(--expresso-primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--expresso-spacing-lg);
}

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

.loading-text {
    color: var(--expresso-text-secondary);
    font-size: var(--expresso-font-size);
    font-weight: var(--expresso-font-weight-medium);
}

/* === RESPONSIVE === */
@media (max-width: 480px) {
    .expresso-modal {
        padding: var(--expresso-spacing-md);
    }
    
    .expresso-modal-container {
        max-width: none;
        width: 100%;
        border-radius: var(--expresso-border-radius-sm);
    }
    
    .expresso-modal-header {
        padding: var(--expresso-spacing-lg) var(--expresso-spacing-xl) var(--expresso-spacing-md);
    }
    
    .expresso-modal-header h3 {
        font-size: var(--expresso-font-size-lg);
    }
    
    .expresso-modal-content {
        padding: var(--expresso-spacing-xl);
    }
    
    .progress-step {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }
    
    .otp-input {
        font-size: 20px;
        letter-spacing: 6px;
    }
    
    .country-code-select {
        min-width: 75px;
        max-width: 75px;
        font-size: 11px;
        padding: var(--expresso-spacing-md) var(--expresso-spacing-sm);
    }
}

/* === ACCESSIBILITY === */
@media (prefers-reduced-motion: reduce) {
    .expresso-modal-container,
    .progress-step,
    .btn-primary,
    .success-icon,
    .loading-spinner {
        animation: none;
        transition: none;
    }
}

@media (prefers-contrast: high) {
    .expresso-modal-container {
        border: var(--expresso-border-width-thick) solid var(--expresso-text-primary);
    }
    
    .form-group input {
        border-width: var(--expresso-border-width-thick);
    }
    
    .btn-primary {
        border: var(--expresso-border-width-thick) solid currentColor;
    }
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus visible */
.expresso-modal *:focus-visible {
    outline: var(--expresso-border-width-thick) solid var(--expresso-primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .expresso-modal {
        display: none;
    }
}