/* design-system.css - Core Design System Components & Utilities */

/* 
 * 1. BASE UTILITIES 
 * Extending main-color.css with advanced modern features 
 */

.ds-glass {
    background: var(--glass-bg, rgba(255, 255, 255, 0.7));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border, rgba(255, 255, 255, 0.2));
    box-shadow: var(--glass-shadow, 0 8px 32px 0 rgba(31, 38, 135, 0.07));
}

.ds-glass-dark {
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    color: var(--color-white);
}

/* 
 * 2. BUTTON COMPONENTS 
 */

.ds-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-full);
    font-family: var(--font-thai);
    font-weight: var(--fw-semibold);
    font-size: 1rem;
    transition: all var(--transition-base);
    text-decoration: none;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.ds-btn:active {
    transform: scale(0.98);
}

.ds-btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

.ds-btn-primary:hover {
    box-shadow: var(--shadow-primary);
    transform: translateY(-2px);
    color: var(--color-white);
}

.ds-btn-secondary {
    background: var(--gradient-secondary);
    color: var(--color-white);
}

.ds-btn-secondary:hover {
    box-shadow: 0 10px 15px -3px rgba(245, 158, 11, 0.3);
    transform: translateY(-2px);
    color: var(--color-white);
}

.ds-btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.ds-btn-outline:hover {
    background: var(--color-primary-opacity);
    color: var(--color-primary);
}

.ds-btn-ghost {
    background: transparent;
    color: var(--color-gray-600);
}

.ds-btn-ghost:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-900);
}

/* 
 * 3. CARD COMPONENTS 
 */

.ds-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    border: 1px solid var(--color-gray-100);
    position: relative;
    overflow: hidden;
}

.ds-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

.ds-card-title {
    font-size: 1.25rem;
    font-weight: var(--fw-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-sm);
    font-family: var(--font-heading);
}

.ds-card-text {
    color: var(--color-gray-600);
    font-size: 0.95rem;
    line-height: 1.6;
}

.ds-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    background: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

/* 
 * 4. BADGES
 */

.ds-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: var(--fw-bold);
    font-family: var(--font-thai);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ds-badge-primary {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.ds-badge-success {
    background: var(--color-success-light);
    color: var(--color-success-dark);
}

.ds-badge-warning {
    background: var(--color-secondary-light);
    color: var(--color-secondary-dark);
}

/* 
 * 5. INPUTS & FORMS
 */

.ds-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-300);
    background: var(--color-white);
    color: var(--color-gray-900);
    font-family: var(--font-thai);
    transition: var(--transition-base);
    outline: none;
}

.ds-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-opacity);
}

.ds-label {
    display: block;
    font-size: 0.875rem;
    font-weight: var(--fw-medium);
    color: var(--color-gray-700);
    margin-bottom: var(--space-xs);
    font-family: var(--font-thai);
}

/* 
 * 6. ANIMATIONS
 */

@keyframes ds-fade-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.ds-animate-fade-in {
    animation: ds-fade-in 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Adding staggered delays */
.ds-delay-100 { animation-delay: 100ms; }
.ds-delay-200 { animation-delay: 200ms; }
.ds-delay-300 { animation-delay: 300ms; }