/* ===================================
   SUMA CENTER - Einheitliches Button System

   VERWENDUNG:
   - Basis: .smg-btn
   - Varianten: .smg-btn-primary, .smg-btn-secondary, .smg-btn-ghost, .smg-btn-light
   - Größen: .smg-btn-sm, .smg-btn-lg, .smg-btn-xl
   - Icons: .smg-btn-icon, .smg-btn-icon-sm, .smg-btn-icon-lg

   BEISPIELE:
   <a class="suma-btn suma-btn-primary">Primary Button</a>
   <a class="suma-btn suma-btn-secondary suma-btn-sm">Small Secondary</a>
   <a class="suma-btn suma-btn-ghost read-more-btn">Custom Read More</a>

   WIEDERVERWENDUNG:
   - Alle Widgets sollten diese Klassen verwenden
   - Custom Button-Styles nur für spezielle Anpassungen
   - Konsistente Micro-Animationen und Hover-Effekte
   ================================== */

/* Button Base */
.smg-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    min-height: 3rem;
    font-family: inherit;
    white-space: nowrap;
    user-select: none;
    outline: none;
    box-sizing: border-box;
}

.smg-btn:focus-visible {
    outline: 2px solid #E31E24;
    outline-offset: 2px;
}

.smg-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Micro-Animation Shimmer Effect */
.smg-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
    z-index: 1;
}

.smg-btn:hover::before {
    left: 100%;
}

/* Button Variants */

/* Primary - Frisches Base-Rot */
.smg-btn-primary {
    background: var(--smg-500);
    color: white;
    box-shadow: 0 4px 14px rgba(var(--smg-500-rgb), 0.25);
}

.smg-btn-primary:hover {
    background: var(--smg-500);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(var(--smg-500-rgb), 0.35);
}

.smg-btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(var(--smg-500-rgb), 0.3);
}

/* Secondary - Outline */
.smg-btn-secondary {
    background: white;
    color: var(--smg-500);
    border: 2px solid var(--smg-500);
    box-shadow: 0 2px 8px rgba(var(--smg-500-rgb), 0.1);
}

.smg-btn-secondary:hover {
    background: var(--smg-500);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(var(--smg-500-rgb), 0.25);
}

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

/* Ghost - Transparent */
.smg-btn-ghost {
    background: transparent;
    color: var(--smg-950);
    border: 2px solid transparent;
}

.smg-btn-ghost:hover {
    background: rgba(var(--smg-500-rgb), 0.1);
    color: var(--smg-500);
    border-color: rgba(var(--smg-500-rgb), 0.2);
    transform: translateY(-1px);
}

/* Accent - Heller */
.smg-btn-accent {
    background: linear-gradient(135deg, var(--smg-500), var(--smg-500));
    color: white;
    box-shadow: 0 4px 14px rgba(var(--smg-500-rgb), 0.25);
}

.smg-btn-accent:hover {
    background: linear-gradient(135deg, var(--smg-400), var(--smg-500));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(246, 61, 67, 0.35);
}

/* Dark - Für helle Hintergründe */
.smg-btn-dark {
    background: linear-gradient(135deg, #47080A, #83191C);
    color: white;
    box-shadow: 0 4px 14px rgba(71, 8, 10, 0.25);
}

.smg-btn-dark:hover {
    background: linear-gradient(135deg, #83191C, #A3161B);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(71, 8, 10, 0.35);
}

/* Light - Für dunkle Hintergründe */
.smg-btn-light {
    background: rgba(255, 255, 255, 0.95);
    color: var(--smg-500);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}

.smg-btn-light:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Button Sizes */

/* Small */
.smg-btn-sm {
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    border-radius: 0.5rem;
    min-height: 2.25rem;
}

/* Large */
.smg-btn-lg {
    padding: 1.125rem 2rem;
    font-size: 1.125rem;
    border-radius: 1rem;
    min-height: 3.5rem;
}

/* Extra Large */
.smg-btn-xl {
    padding: 1.25rem 2.5rem;
    font-size: 1.25rem;
    border-radius: 1.25rem;
    min-height: 4rem;
}

/* Icon Buttons */
.smg-btn-icon {
    padding: 0.75rem;
    min-width: 3rem;
    min-height: 3rem;
    border-radius: 0.75rem;
}

.smg-btn-icon-sm {
    padding: 0.5rem;
    min-width: 2.25rem;
    min-height: 2.25rem;
    border-radius: 0.5rem;
}

.smg-btn-icon-lg {
    padding: 1rem;
    min-width: 3.5rem;
    min-height: 3.5rem;
    border-radius: 1rem;
}

/* Button Groups */
.smg-btn-group {
    display: inline-flex;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.smg-btn-group .smg-btn {
    border-radius: 0;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.smg-btn-group .smg-btn:first-child {
    border-radius: 0.75rem 0 0 0.75rem;
}

.smg-btn-group .smg-btn:last-child {
    border-radius: 0 0.75rem 0.75rem 0;
    border-right: none;
}

.smg-btn-group .smg-btn:only-child {
    border-radius: 0.75rem;
    border-right: none;
}

/* Special Effects */

/* Pulse Animation */
.smg-btn-pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(227, 30, 36, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(227, 30, 36, 0); }
    100% { box-shadow: 0 0 0 0 rgba(227, 30, 36, 0); }
}

/* Gradient Border */
.smg-btn-gradient-border {
    background: white;
    color: #E31E24;
    position: relative;
    border: none;
}

.smg-btn-gradient-border::after {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: linear-gradient(135deg, #E31E24, #F63D43, #FD6C70);
    border-radius: inherit;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: xor;
    -webkit-mask-composite: xor;
}

/* Loading State */
.smg-btn-loading {
    color: transparent;
    pointer-events: none;
}

.smg-btn-loading::after {
    content: '';
    position: absolute;
    width: 1rem;
    height: 1rem;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    color: inherit;
}

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

/* Responsive */
@media (max-width: 768px) {
    .smg-btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
        min-height: 2.75rem;
    }
    
    .smg-btn-lg {
        padding: 1rem 1.75rem;
        font-size: 1rem;
        min-height: 3.25rem;
    }
    
    .smg-btn-xl {
        padding: 1.125rem 2rem;
        font-size: 1.125rem;
        min-height: 3.75rem;
    }
}

@media (max-width: 480px) {
    .smg-btn {
        padding: 0.625rem 1rem;
        font-size: 0.875rem;
        min-height: 2.5rem;
    }
    
    .smg-btn-group {
        flex-direction: column;
        width: 100%;
    }
    
    .smg-btn-group .smg-btn {
        border-radius: 0;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }
    
    .smg-btn-group .smg-btn:first-child {
        border-radius: 0.75rem 0.75rem 0 0;
    }
    
    .smg-btn-group .smg-btn:last-child {
        border-radius: 0 0 0.75rem 0.75rem;
        border-bottom: none;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .smg-btn,
    .smg-btn::before {
        transition: none;
        animation: none;
    }
    
    .smg-btn:hover {
        transform: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .smg-btn-primary {
        background: #000;
        border: 2px solid #fff;
    }
    
    .smg-btn-secondary {
        background: #fff;
        color: #000;
        border: 2px solid #000;
    }
}