/* =====================================================
   GLOBAL RESET & BASE STYLES
   ===================================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #1f2937;
    background-color: #f9fafb;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f3f4f6;
}

::-webkit-scrollbar-thumb {
    background: #9ca3af;
    border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
    background: #6b7280;
}

/* =====================================================
   HEADER & NAVIGATION
   ===================================================== */

.site-header {
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.navbar {
    width: 100%;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

/* Logo */
.nav-logo a {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: #111827;
    font-weight: 700;
    font-size: 24px;
    transition: transform 0.2s;
}

.nav-logo a:hover {
    transform: scale(1.02);
}

.logo-icon {
    font-size: 36px;
    filter: drop-shadow(0 2px 4px rgba(37, 99, 235, 0.3));
}

.logo-text {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation Links */
.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    color: #4b5563;
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    padding: 8px 16px;
    border-radius: 12px;
    transition: all 0.2s;
}

.nav-link:hover {
    color: #2563eb;
    background: #f3f4f6;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: #ffffff;
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

.btn-outline {
    padding: 10px 22px;
    border: 2px solid #2563eb;
    background: transparent;
    color: #2563eb;
}

.btn-outline:hover {
    background: #2563eb;
    color: #ffffff;
}

.btn-secondary {
    background: #f3f4f6;
    color: #374151;
}

.btn-secondary:hover {
    background: #e5e7eb;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 26px;
    height: 3px;
    background: #374151;
    border-radius: 9999px;
    transition: all 0.2s;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

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

/* =====================================================
   FOOTER
   ===================================================== */

.site-footer {
    background: #111827;
    color: #d1d5db;
    padding: 64px 24px 24px;
    margin-top: 64px;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid #374151;
}

.footer-section h3 {
    color: #ffffff;
    font-size: 18px;
    margin-bottom: 24px;
    font-weight: 700;
}

.footer-section p {
    line-height: 1.8;
    color: #9ca3af;
    font-size: 14px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 16px;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #3b82f6;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    margin-bottom: 16px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact a {
    color: #9ca3af;
    text-decoration: none;
}

.footer-contact a:hover {
    color: #3b82f6;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-copyright p {
    color: #6b7280;
    font-size: 14px;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 9999px;
    background: #374151;
    font-size: 20px;
    text-decoration: none;
    transition: all 0.2s;
}

.social-link:hover {
    background: #2563eb;
    transform: translateY(-4px);
}

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 24px;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        transform: translateX(-100%);
        transition: transform 0.3s;
        border-top: 1px solid #e5e7eb;
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-link,
    .btn-outline,
    .btn-primary {
        width: 100%;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 16px;
    }

    .logo-text {
        font-size: 20px;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}