/* ==========================================================================
   MAIN CSS - Hangi Kaynak Takvim App
   ========================================================================== */

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a202c;
    background: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.3s ease;
}

.loading-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.loading-logo-img {
    width: 200px;
    height: auto;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.loading-spinner .spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #fee2e2;
    border-top: 4px solid #dc2626;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.loading-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: #dc2626;
}

/* Flash Messages */
.flash-message {
    position: fixed;
    top: 20px;
    right: 20px;
    max-width: 400px;
    z-index: 9999;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    animation: slideInRight 0.3s ease-out;
    transition: opacity 0.3s ease;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.flash-content {
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    position: relative;
}

.flash-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.flash-close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: none;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.flash-close:hover {
    opacity: 1;
}

.flash-success {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border: 1px solid #bbf7d0;
    color: #16a34a;
}

.flash-error {
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    border: 1px solid #fecaca;
    color: #dc2626;
}

.flash-warning {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border: 1px solid #fed7aa;
    color: #d97706;
}

.flash-info {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: 1px solid #bfdbfe;
    color: #2563eb;
}

/* App Container */
.app-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
}

/* Header Navigation */
.header {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-bottom: 1px solid #e2e8f0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    padding: 1.2rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.header.scrolled {
    padding: 0.8rem 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.12);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

/* Logolar Container */
.logos-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0.5rem;
    border-radius: 12px;
}

.logo-container:hover {
    transform: translateY(-2px);
    background: rgba(0, 0, 0, 0.02);
}

.logo-image {
    width: 8rem;
    height: 2.2rem;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

/* Navigasyon Menüsü */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.2rem;
    color: #374151;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    transition: left 0.3s ease;
    z-index: -1;
}

.nav-link:hover::before {
    left: 0;
}

.nav-link:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
}

.nav-icon {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
    width: 1.2rem;
    height: 1.2rem;
    color: inherit;
    display: inline-block;
}

.nav-link:hover .nav-icon {
    transform: scale(1.1);
}

.nav-text {
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* WhatsApp Link Styles */
.whatsapp-link {
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.whatsapp-link::before {
    background: linear-gradient(135deg, #128c7e 0%, #0d6b5c 100%);
}

.whatsapp-link:hover {
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    transform: translateY(-2px);
}

/* Cart Link Styles */
.cart-link {
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.3);
    position: relative;
}

.cart-link::before {
    background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
}

.cart-link:hover {
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
    transform: translateY(-2px);
}

.cart-icon-wrapper {
    position: relative;
    display: inline-block;
}

.cart-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: #dc2626;
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.4rem;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
    box-shadow: 0 2px 6px rgba(220, 38, 38, 0.4);
    animation: cartBadgePulse 2s ease-in-out infinite;
}

@keyframes cartBadgePulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

.cart-badge-mobile {
    position: absolute;
    top: -6px;
    right: -6px;
    background: #dc2626;
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.1rem 0.35rem;
    border-radius: 8px;
    min-width: 16px;
    text-align: center;
    box-shadow: 0 2px 6px rgba(220, 38, 38, 0.4);
}

.whatsapp-link .nav-icon {
    color: white;
}

.whatsapp-link:hover .nav-icon {
    color: white;
}

/* Login Link */
.login-link {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.login-link::before {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
}

/* User Menu */
.user-menu-container {
    position: relative;
}

.user-menu-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.2rem;
    background: none;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    color: #374151;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.user-menu-toggle:hover {
    border-color: #cbd5e0;
    background: #f8fafc;
}

.menu-arrow {
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.user-menu-container.active .menu-arrow {
    transform: rotate(180deg);
}

.user-menu-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.user-menu-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-menu-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: #374151;
    text-decoration: none;
    transition: all 0.3s ease;
}

.user-menu-item:hover {
    background: #f8fafc;
    color: #1a202c;
}

.user-menu-divider {
    height: 1px;
    background: #e2e8f0;
    margin: 0.5rem 0;
}

.logout-item {
    color: #dc2626;
}

.logout-item:hover {
    background: #fef2f2;
}

/* Mobil Header Actions */
.mobile-header-actions {
    display: none;
    align-items: center;
    gap: 0.75rem;
}

/* Mobil Feedback Button */
.mobile-feedback-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(220, 38, 38, 0.3);
}

.mobile-feedback-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.4);
}

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

.mobile-feedback-btn i {
    font-size: 1.2rem;
}

/* Mobil WhatsApp Button */
.mobile-whatsapp-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: white;
    text-decoration: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3);
}

.mobile-whatsapp-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
}

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

.mobile-whatsapp-btn i {
    font-size: 1.3rem;
}

.mobile-cart-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
    color: white;
    text-decoration: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
    position: relative;
}

.mobile-cart-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.4);
}

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

.mobile-cart-btn i {
    font-size: 1.3rem;
}

.mobile-user-btn,
.mobile-login-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    text-decoration: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(220, 38, 38, 0.3);
}

.mobile-user-btn:hover,
.mobile-login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.4);
}

.mobile-user-btn:active,
.mobile-login-btn:active {
    transform: translateY(0);
}

.mobile-user-btn i,
.mobile-login-btn i {
    font-size: 1.3rem;
}

.login-link,
.user-panel-link {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
}

.login-link::before,
.user-panel-link::before {
    background: linear-gradient(135deg, #b91c1c 0%, #991b1b 100%);
}

.login-link:hover,
.user-panel-link:hover {
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.4);
    transform: translateY(-2px);
}

/* Mobil Menü Butonu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.8rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    z-index: 1001;
    position: relative;
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
    align-items: center;
}

.mobile-menu-btn:hover {
    background: rgba(0, 0, 0, 0.1);
    transform: scale(1.05);
}

.hamburger-line {
    width: 28px;
    height: 4px;
    background: #374151;
    border-radius: 3px;
    transition: all 0.3s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.mobile-menu-btn.menu-open .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-btn.menu-open .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.menu-open .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* Mobil Menü */
.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid #e2e8f0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 1rem;
    transform: translateY(-100%);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
}

.mobile-menu.mobile-menu-open {
    transform: translateY(0);
    opacity: 1;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem;
    color: #374151;
    text-decoration: none;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.3s ease;
    margin-bottom: 0.5rem;
}

.mobile-nav-link:hover {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    transform: translateX(5px);
}

.mobile-nav-link.whatsapp-link {
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: white;
}

.mobile-nav-link.whatsapp-link:hover {
    background: linear-gradient(135deg, #128c7e 0%, #0d6b5c 100%);
    transform: translateX(5px);
}

.mobile-nav-link:last-child {
    margin-bottom: 0;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    color: white;
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo-img {
    width: 200px;
    height: auto;
    filter: brightness(0) invert(1);
}

.footer-description {
    font-size: 1rem;
    line-height: 1.6;
    color: #a0aec0;
}

.footer-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.footer-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-link {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.footer-link:hover {
    color: #dc2626;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.contact-icon {
    font-size: 1rem;
    color: #dc2626;
    width: 20px;
}

.contact-link {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: white;
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #a0aec0;
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
}

.social-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.social-link.youtube:hover {
    background: rgba(255, 0, 0, 0.2);
}

.social-link.instagram:hover {
    background: rgba(228, 64, 95, 0.2);
}

.social-link.whatsapp:hover {
    background: rgba(37, 211, 102, 0.2);
}

.footer-bottom {
    border-top: 1px solid #4a5568;
    padding-top: 1.5rem;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    color: #a0aec0;
    font-size: 0.9rem;
}

.version-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.15) 0%, rgba(185, 28, 28, 0.15) 100%);
    color: #dc2626;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid rgba(220, 38, 38, 0.3);
    margin-left: 0.5rem;
    transition: all 0.3s ease;
}

.version-badge:hover {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.25) 0%, rgba(185, 28, 28, 0.25) 100%);
    border-color: rgba(220, 38, 38, 0.5);
    transform: scale(1.05);
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-link {
    color: #a0aec0;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-bottom-link:hover {
    color: #dc2626;
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
}

.whatsapp-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: white;
    text-decoration: none;
    padding: 1rem 1.5rem;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    font-weight: 600;
    animation: whatsappPulse 2s infinite;
}

@keyframes whatsappPulse {

    0%,
    100% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }

    50% {
        box-shadow: 0 8px 30px rgba(37, 211, 102, 0.6);
    }
}

.whatsapp-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-btn i {
    font-size: 1.5rem;
}

.whatsapp-text {
    font-size: 0.9rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.4);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .header-content {
        padding: 0 1.5rem;
    }

    .logos-container {
        gap: 0.8rem;
    }

    .logo-image {
        width: 7rem;
        height: 1.9rem;
    }

    .nav-menu {
        gap: 1.5rem;
    }

    .nav-link {
        padding: 0.7rem 1rem;
        font-size: 0.9rem;
    }

    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 1rem 0;
    }

    .header-content {
        padding: 0 1rem;
    }

    .logos-container {
        gap: 0.6rem;
    }

    .nav-menu {
        display: none;
    }

    .mobile-header-actions {
        display: flex;
    }

    .mobile-menu-btn {
        display: none;
    }

    .mobile-menu {
        display: none;
    }

    .logo-image {
        width: 6rem;
        height: 1.6rem;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-bottom-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .footer-bottom-links {
        justify-content: center;
    }

    .whatsapp-float {
        bottom: 1rem;
        right: 1rem;
    }

    .whatsapp-text {
        display: none;
    }

    .back-to-top {
        bottom: 1rem;
        left: 1rem;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 0.8rem 0;
    }

    .logos-container {
        gap: 0.4rem;
    }

    .logo-image {
        width: 5rem;
        height: 1.4rem;
    }

    .mobile-feedback-btn,
    .mobile-whatsapp-btn,
    .mobile-cart-btn {
        width: 40px;
        height: 40px;
    }

    .mobile-feedback-btn i {
        font-size: 1.1rem;
    }

    .mobile-whatsapp-btn i {
        font-size: 1.2rem;
    }

    .mobile-cart-btn i {
        font-size: 1.2rem;
    }

    .mobile-user-btn,
    .mobile-login-btn {
        width: 40px;
        height: 40px;
    }

    .mobile-user-btn i,
    .mobile-login-btn i {
        font-size: 1.2rem;
    }

    .mobile-nav-link {
        padding: 0.8rem;
        font-size: 0.9rem;
    }

    .footer {
        padding: 2rem 0 1rem;
    }

    .footer-content {
        padding: 0 1rem;
    }

    .flash-message {
        right: 10px;
        left: 10px;
        max-width: none;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

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

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

.d-flex {
    display: flex;
}

.align-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.gap-1 {
    gap: 0.5rem;
}

.gap-2 {
    gap: 1rem;
}

.gap-3 {
    gap: 1.5rem;
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-3 {
    margin-top: 1.5rem;
}

.mt-4 {
    margin-top: 2rem;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

.p-1 {
    padding: 0.5rem;
}

.p-2 {
    padding: 1rem;
}

.p-3 {
    padding: 1.5rem;
}

.p-4 {
    padding: 2rem;
}

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

/* Smooth transitions for all interactive elements */
button,
a,
input,
select,
textarea {
    transition: all 0.3s ease;
}

/* Focus styles for accessibility */
button:focus,
a:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}