/* =========================================
   COMPONENTS.CSS - UI Components
   ========================================= */

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

/* Primary Button */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--accent-blue);
    color: var(--white);
    border-radius: var(--border-radius-full);
    font-weight: var(--weight-medium);
    font-size: var(--text-body);
    border: 1px solid var(--accent-blue);
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
}

.btn-primary:hover {
    background: var(--accent-blue-dark);
    border-color: var(--accent-blue-dark);
    gap: 1rem;
}

.btn-primary .arrow {
    opacity: 0;
    transition: opacity var(--duration-base) var(--ease-smooth),
                transform var(--duration-base) var(--ease-smooth);
}

.btn-primary:hover .arrow {
    opacity: 1;
    transform: translateX(4px);
}

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

body.dark .btn-primary {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}

body.dark .btn-primary:hover {
    background: var(--accent-blue-dark);
    border-color: var(--accent-blue-dark);
}

/* Small Button Variant */
.btn-small {
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
}

/* Secondary Button */
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: transparent;
    color: var(--black);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-full);
    font-weight: var(--weight-medium);
    font-size: var(--text-body);
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
}

.btn-secondary:hover {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
}

body.dark .btn-secondary {
    color: var(--white);
    border-color: var(--border-color);
}

body.dark .btn-secondary:hover {
    background: var(--white);
    color: var(--black);
    border-color: var(--white);
}

/* Text Button */
.btn-text {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-weight: var(--weight-medium);
    font-size: var(--text-body);
    cursor: pointer;
    position: relative;
    padding: 0;
    transition: var(--transition-fast);
}

.btn-text::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--black);
    transition: width var(--duration-base) var(--ease-smooth);
}

.btn-text:hover {
    color: var(--black);
}

.btn-text:hover::after {
    width: 100%;
}

body.dark .btn-text::after {
    background: var(--white);
}

body.dark .btn-text:hover {
    color: var(--white);
}

/* ===== NAVIGATION ===== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    padding: 2rem var(--padding-container);
    transition: var(--transition-base);
}

.nav.scrolled {
    background: rgba(250, 250, 250, 0.8);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    border-bottom: 1px solid var(--border-color);
}

body.dark .nav.scrolled {
    background: rgba(42, 42, 42, 0.8);
}

.nav__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    margin: 0 auto;
}

.nav__logo {
    font-family: var(--font-display);
    font-size: 0.9375rem;
    font-weight: var(--weight-bold);
    letter-spacing: var(--ls-wider);
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.nav__logo:hover {
    opacity: 0.7;
}

.nav__links {
    display: flex;
    gap: 3rem;
}

.nav__links a {
    font-size: 0.9375rem;
    font-weight: var(--weight-medium);
    color: var(--text-secondary);
    position: relative;
    transition: var(--transition-fast);
}

.nav__links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--black);
    transition: width var(--duration-base) var(--ease-smooth);
}

.nav__links a:hover {
    color: var(--text-primary);
}

.nav__links a:hover::after {
    width: 100%;
}

body.dark .nav__links a::after {
    background: var(--white);
}

/* Theme Toggle */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-md);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    color: var(--text-primary);
}

.theme-toggle:hover {
    background: var(--hover-bg);
    transform: scale(1.1) rotate(15deg);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-md);
    background: var(--bg-tertiary);
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.mobile-menu-btn span {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-base);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translateY(7px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-7px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--card-bg);
    backdrop-filter: var(--backdrop-blur);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-lg) var(--padding-container);
    animation: fadeIn var(--duration-base) var(--ease-out);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu a {
    display: block;
    padding: var(--space-md);
    color: var(--text-secondary);
    border-radius: var(--border-radius-md);
    transition: var(--transition-fast);
    font-weight: var(--weight-medium);
}

.mobile-menu a:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

/* ===== CARDS - MINIMALISTISCH ===== */

/* Product Card */
.product-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    transition: var(--transition-base);
    padding: 0;
    display: flex;
    flex-direction: column;
    position: relative;
    min-height: 450px;
}

/* Gradient accent line on top */
.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
    opacity: 0;
    transition: opacity var(--duration-base) var(--ease-smooth);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: rgba(37, 99, 235, 0.5);
}

.product-card:hover::before {
    opacity: 1;
}

.product-card__content {
    display: flex;
    flex-direction: column;
    padding: var(--space-3xl);
    flex: 1;
    gap: 0;
}

.product-card__actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-top: auto;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-color);
}

/* ===== VALUE ITEMS ===== */

.value-item {
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
}

.value-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-lg);
    background: var(--bg-secondary);
    color: var(--accent-blue);
    transition: var(--transition-base);
}

.value-item:hover .value-icon {
    transform: translateY(-8px);
    background: var(--accent-blue);
    color: var(--white);
}

/* ===== STATS ===== */

.stats-inline {
    display: flex;
    gap: var(--space-3xl);
    margin-top: var(--space-3xl);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

/* ===== CONTACT INFO ===== */

.contact__info {
    max-width: 600px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--border-color);
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-item .link {
    color: var(--accent-blue);
    transition: var(--transition-fast);
}

.contact-item .link:hover {
    color: var(--accent-blue-dark);
}

/* ===== MODAL ===== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.modal.active {
    display: flex;
}

.modal__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    animation: fadeIn var(--duration-base) var(--ease-out);
}

.modal__container {
    position: relative;
    background: var(--card-bg);
    border-radius: var(--border-radius-xl);
    max-width: 900px;
    max-height: 90vh;
    width: 100%;
    overflow: hidden;
    animation: slideUp var(--duration-slow) var(--ease-smooth);
}

.modal__close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
    z-index: 1;
}

.modal__close:hover {
    background: var(--hover-bg);
    transform: rotate(90deg);
}

.modal__content {
    padding: var(--space-4xl);
    overflow-y: auto;
    max-height: 90vh;
}

/* ===== SCROLL TO TOP ===== */

.scroll-top {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 56px;
    height: 56px;
    background: var(--black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: var(--z-sticky);
    color: var(--white);
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

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

body.dark .scroll-top {
    background: var(--white);
    color: var(--black);
}

/* ===== LOADER ===== */

.loader {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-loader);
    transition: opacity var(--duration-slow) var(--ease-out),
                visibility var(--duration-slow) var(--ease-out);
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader__spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===== RESPONSIVE ===== */

@media (max-width: 1024px) {
    .nav__links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .product-card__actions {
        flex-direction: column;
    }
    
    .btn-primary,
    .btn-secondary,
    .btn-small {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav {
        padding: 1.5rem var(--space-lg);
    }
    
    .product-card {
        padding: 0;
        min-height: 400px;
    }
    
    .product-card__content {
        padding: var(--space-2xl);
    }
    
    .product-card__actions {
        flex-direction: column;
        padding-top: var(--space-lg);
    }
    
    .btn-primary,
    .btn-secondary,
    .btn-small {
        width: 100%;
        justify-content: center;
    }
    
    .stats-inline {
        flex-direction: column;
        gap: var(--space-xl);
    }
    
    .modal__content {
        padding: var(--space-xl);
    }
    
    .scroll-top {
        width: 48px;
        height: 48px;
        bottom: var(--space-md);
        right: var(--space-md);
    }
}

@media (max-width: 480px) {
    .nav__logo {
        font-size: 0.875rem;
    }
    
    .theme-toggle,
    .mobile-menu-btn {
        width: 36px;
        height: 36px;
    }
    
    .btn-primary,
    .btn-small {
        padding: 0.875rem 1.5rem;
        font-size: 0.9375rem;
    }
    
    .product-card {
        min-height: 380px;
    }
    
    .product-card__content {
        padding: var(--space-xl);
    }
    
    .value-item {
        padding: var(--space-xl) var(--space-sm);
    }
    
    .value-icon {
        width: 56px;
        height: 56px;
    }
    
    .modal__content {
        padding: var(--space-lg);
    }
}