/**
 * Modals CSS - Pixel Perfect Styling
 * For Location Flow (0.6.1, 0.6.2, 0.6.3, 0.6.4)
 * 
 * @version 1.0.0
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    --modal-blue: #214780;
    --modal-cyan: #0092BC;
    --modal-error: #E91E63;
    --modal-gray: #6B7280;
    --modal-light-gray: #E5E7EB;
    --modal-border: #D1D5DB;
    --modal-bg: #FFFFFF;
    --modal-overlay: rgba(0, 0, 0, 0.5);
    --modal-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --modal-radius: 16px;
    --modal-input-radius: 50px;
    --modal-transition: 0.3s ease;
}

/* ============================================
   Modal Overlay
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--modal-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--modal-transition), visibility var(--modal-transition);
    padding: 20px;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   Modal Container
   ============================================ */
.modal-container {
    background: var(--modal-bg);
    border-radius: var(--modal-radius);
    box-shadow: var(--modal-shadow);
    max-width: 480px;
    width: 100%;
    padding: 48px 40px;
    position: relative;
    transform: translateY(-20px) scale(0.95);
    transition: transform var(--modal-transition);
    max-height: 90vh;
    overflow-y: auto;
}

.modal-overlay.active .modal-container {
    transform: translateY(0) scale(1);
}

/* ============================================
   Modal Close Button
   ============================================ */
.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--modal-gray);
    padding: 8px;
    border-radius: 50%;
    transition: background var(--modal-transition), color var(--modal-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--modal-light-gray);
    color: var(--modal-blue);
}

.modal-close:focus {
    outline: 2px solid var(--modal-cyan);
    outline-offset: 2px;
}

/* ============================================
   Modal Icon
   ============================================ */
.modal-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    position: relative;
}

.modal-icon-blue {
    color: var(--modal-cyan);
}

.modal-icon-error {
    color: var(--modal-error);
}

.modal-icon svg {
    width: 48px;
    height: 48px;
}

.error-indicator {
    position: absolute;
    top: -4px;
    right: -8px;
    width: 20px;
    height: 20px;
    background: var(--modal-error);
    color: white;
    border-radius: 50%;
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ============================================
   Modal Title & Subtitle
   ============================================ */
.modal-title {
    font-family: 'Inter', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--modal-blue);
    text-align: center;
    margin: 0 0 24px;
    line-height: 1.3;
}

.modal-title-error {
    color: var(--modal-error);
}

.modal-subtitle {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: var(--modal-blue);
    text-align: center;
    margin: 0 0 24px;
    text-decoration: underline;
}

/* ============================================
   Use Location Button
   ============================================ */
.modal-use-location {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 24px;
    background: transparent;
    border: none;
    color: var(--modal-blue);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 500;
    text-decoration: underline;
    cursor: pointer;
    margin-bottom: 24px;
    transition: color var(--modal-transition);
}

.modal-use-location:hover {
    color: var(--modal-cyan);
}

.modal-use-location svg {
    color: var(--modal-cyan);
}

/* ============================================
   Modal Form
   ============================================ */
.modal-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    position: relative;
}

/* ============================================
   Form Inputs
   ============================================ */
.form-input {
    width: 100%;
    padding: 16px 24px;
    border: 2px solid var(--modal-border);
    border-radius: var(--modal-input-radius);
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    color: var(--modal-blue);
    background: var(--modal-bg);
    transition: border-color var(--modal-transition), box-shadow var(--modal-transition);
    outline: none;
}

.form-input::placeholder {
    color: var(--modal-gray);
}

.form-input:focus {
    border-color: var(--modal-cyan);
    box-shadow: 0 0 0 3px rgba(0, 146, 188, 0.15);
}

.form-input.has-label {
    padding-top: 24px;
    padding-bottom: 8px;
}

/* ============================================
   Input Wrapper with Label
   ============================================ */
.input-wrapper {
    position: relative;
}

.input-label {
    position: absolute;
    top: 8px;
    left: 24px;
    font-family: 'Inter', sans-serif;
    font-size: 12px;
    color: var(--modal-blue);
    font-weight: 500;
    pointer-events: none;
}

.input-clear {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--modal-blue);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--modal-transition);
}

.input-wrapper:hover .input-clear,
.form-input:focus ~ .input-clear {
    opacity: 1;
}

/* ============================================
   Select Dropdown
   ============================================ */
.select-wrapper {
    position: relative;
}

.form-select {
    width: 100%;
    padding: 16px 48px 16px 24px;
    border: 2px solid var(--modal-border);
    border-radius: var(--modal-input-radius);
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    color: var(--modal-gray);
    background: var(--modal-bg);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    transition: border-color var(--modal-transition);
    outline: none;
}

.form-select:focus {
    border-color: var(--modal-cyan);
}

.form-select:valid {
    color: var(--modal-blue);
}

.select-arrow {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    color: var(--modal-gray);
    pointer-events: none;
}

/* ============================================
   Checkbox
   ============================================ */
.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 8px 0;
}

.form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin: 0;
    cursor: pointer;
    accent-color: var(--modal-cyan);
    flex-shrink: 0;
    margin-top: 2px;
}

.form-checkbox label {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: var(--modal-blue);
    line-height: 1.4;
    cursor: pointer;
}

.link-terms {
    color: var(--modal-blue);
    font-weight: 600;
    text-decoration: underline;
}

/* ============================================
   Primary Button
   ============================================ */
.btn-modal-primary {
    width: 100%;
    padding: 16px 32px;
    background: var(--modal-blue);
    color: white;
    border: none;
    border-radius: var(--modal-input-radius);
    font-family: 'Inter', sans-serif;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--modal-transition), transform var(--modal-transition);
    margin-top: 8px;
}

.btn-modal-primary:hover {
    background: #1a3a66;
    transform: translateY(-2px);
}

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

.btn-modal-primary:disabled {
    background: var(--modal-light-gray);
    color: var(--modal-gray);
    cursor: not-allowed;
    transform: none;
}

/* ============================================
   Secondary Link
   ============================================ */
.modal-link-secondary {
    display: block;
    text-align: center;
    margin-top: 16px;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: var(--modal-cyan);
    text-decoration: underline;
    font-weight: 500;
    transition: color var(--modal-transition);
}

.modal-link-secondary:hover {
    color: var(--modal-blue);
}

/* ============================================
   Validation States
   ============================================ */
.form-input.error,
.form-select.error {
    border-color: var(--modal-error);
}

.form-input.success,
.form-select.success {
    border-color: #10B981;
}

.error-message {
    display: none;
    font-family: 'Inter', sans-serif;
    font-size: 12px;
    color: var(--modal-error);
    margin-top: 4px;
    padding-left: 24px;
}

.form-group.has-error .error-message {
    display: block;
}

/* ============================================
   Loading State
   ============================================ */
.btn-modal-primary.loading {
    position: relative;
    color: transparent;
}

.btn-modal-primary.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: modalSpin 0.8s linear infinite;
}

@keyframes modalSpin {
    to { transform: rotate(360deg); }
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .modal-container {
        padding: 40px 24px;
        margin: 16px;
        max-height: calc(100vh - 32px);
    }
    
    .modal-title {
        font-size: 24px;
    }
    
    .form-input,
    .form-select {
        font-size: 14px;
        padding: 14px 20px;
    }
    
    .form-input.has-label {
        padding-top: 22px;
        padding-bottom: 6px;
    }
    
    .btn-modal-primary {
        font-size: 16px;
        padding: 14px 24px;
    }
}

@media (max-width: 480px) {
    .modal-container {
        padding: 32px 20px;
        border-radius: 12px;
    }
    
    .modal-title {
        font-size: 22px;
    }
    
    .modal-close {
        top: 12px;
        right: 12px;
    }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Body Lock (when modal is open)
   ============================================ */
body.modal-open {
    overflow: hidden;
}