/* static/css/core/contact.css */
/* Aligned with base.css design system */

/* =====================
       WRAPPER
===================== */
.contact-wrapper {
    width: 100%;
    max-width: 520px;
    margin: var(--spacing-xl) auto;
    padding: 0 var(--spacing-md);
}

/* =====================
        CARD
===================== */
.contact-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    animation: fadeUp 0.4s ease both;
}

/* =====================
        TITLES
===================== */
.contact-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.contact-subtitle {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

/* =====================
        FORM
===================== */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-group {
    display: flex;
    flex-direction: column;
}

.contact-group label {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    font-size: 0.9375rem;
}

.contact-group input,
.contact-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    font-size: 1rem;
    background: var(--color-bg);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    font-family: inherit;
}

.contact-group input:focus,
.contact-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.contact-group input::placeholder,
.contact-group textarea::placeholder {
    color: var(--color-text-muted);
}

textarea {
    min-height: 140px;
    resize: vertical;
    line-height: 1.6;
}

/* =====================
      FILE INPUT
===================== */
.file-input-wrapper {
    position: relative;
}

.contact-group input[type="file"] {
    padding: 0.5rem 0;
    background: transparent;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    padding: 1rem;
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.contact-group input[type="file"]:hover {
    border-color: var(--color-primary);
    background: rgba(99, 102, 241, 0.02);
}

.contact-group input[type="file"]::file-selector-button {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    margin-right: var(--spacing-sm);
    transition: background var(--transition-fast);
}

.contact-group input[type="file"]::file-selector-button:hover {
    background: var(--color-primary-dark);
}

/* =====================
      HELP TEXT
===================== */
.help-text {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
    display: block;
}

/* =====================
       BUTTON
===================== */
.contact-btn {
    width: 100%;
    justify-content: center;
    margin-top: var(--spacing-sm);
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
}

.contact-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.contact-btn.loading {
    position: relative;
    pointer-events: none;
}

.contact-btn.loading::after {
    content: '';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-white);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* =====================
       ERRORS
===================== */
.contact-error {
    color: var(--color-error);
    font-size: 0.8125rem;
    margin-top: var(--spacing-xs);
    padding: 0.5rem 0.75rem;
    background: rgba(239, 68, 68, 0.08);
    border-left: 3px solid var(--color-error);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Invalid input state */
.contact-group input.input-invalid,
.contact-group textarea.input-invalid {
    border-color: var(--color-error);
    background: rgba(239, 68, 68, 0.03);
}

/* Shake animation */
.contact-group.shake {
    animation: shake 0.35s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    50% { transform: translateX(6px); }
    75% { transform: translateX(-4px); }
}

@keyframes spin {
    to { transform: translateY(-50%) rotate(360deg); }
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* =====================
      FILE PREVIEW
===================== */
.file-preview {
    margin-top: var(--spacing-sm);
}

.file-preview img {
    max-width: 100%;
    max-height: 180px;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.file-preview .file-name {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.file-preview .file-name i {
    color: var(--color-primary);
}

/* =====================
      RESPONSIVE
===================== */
@media (max-width: 640px) {
    .contact-wrapper {
        margin: var(--spacing-lg) auto;
    }

    .contact-card {
        padding: var(--spacing-lg);
    }

    .contact-title {
        font-size: 1.5rem;
    }

    .contact-subtitle {
        font-size: 0.9375rem;
    }
}

@media (max-width: 480px) {
    .contact-card {
        padding: var(--spacing-md);
        border-radius: var(--radius-lg);
    }

    .contact-title {
        font-size: 1.375rem;
    }
}