/* ============================================
   REUSABLE COMPONENTS
   Shared UI components and utilities
   ============================================ */

/* ============================================
   BUTTONS
   ============================================ */

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-dark));
    color: var(--color-text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-glow);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-accent-hover), var(--color-accent-primary));
    box-shadow: var(--shadow-glow-intense);
    transform: translateY(-2px);
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--color-accent-primary);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-secondary:hover {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-hover);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background: linear-gradient(135deg, var(--color-background-gradient-start), var(--color-background-gradient-end));
    border: 1px solid rgba(255, 42, 42, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.card:hover {
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--color-text-secondary);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(255, 42, 42, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-message {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    display: none;
}

.form-message.success {
    background: rgba(0, 146, 70, 0.1);
    border: 1px solid var(--color-italy-green);
    color: var(--color-italy-green);
}

.form-message.error {
    background: rgba(255, 42, 42, 0.1);
    border: 1px solid var(--color-accent-primary);
    color: var(--color-accent-primary);
}

/* ============================================
   LOADING SPINNER
   ============================================ */

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    border-top-color: var(--color-text-primary);
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   UTILITIES
   ============================================ */

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

/* Text utilities */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

/* Spacing utilities */
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }