.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: var(--z-nav);
    transition: all 0.4s ease;
    background: transparent;
}

.navbar > .container {
    height: 100%;
}

.navbar.scrolled {
    background: var(--nav-bg-scrolled);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .navbar:not(.scrolled) {
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

[data-theme="light"] .navbar:not(.scrolled) .nav-link,
[data-theme="light"] .navbar:not(.scrolled) .logo-main {
    color: #0F172A;
}

[data-theme="light"] .navbar:not(.scrolled) .nav-btn {
    color: #0F172A;
    background: rgba(15,23,42,0.06);
    border-color: rgba(15,23,42,0.12);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 1rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    position: relative;
    padding: 4px 0;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s ease;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

.nav-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-subtle);
}

.theme-toggle {
    padding: 8px 12px;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-nav) + 1);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    max-width: 85vw;
    height: 100vh;
    background: var(--bg-secondary);
    z-index: calc(var(--z-nav) + 2);
    display: flex;
    flex-direction: column;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.3);
    overflow-y: auto;
    border-left: 1px solid var(--glass-border);
}

[dir="rtl"] .mobile-drawer {
    right: auto;
    left: -320px;
    border-left: none;
    border-right: 1px solid var(--glass-border);
    box-shadow: 8px 0 32px rgba(0, 0, 0, 0.3);
}

.mobile-drawer.active {
    right: 0;
}

[dir="rtl"] .mobile-drawer.active {
    left: 0;
}

.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.drawer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    text-decoration: none;
}

.drawer-logo img {
    width: 36px;
    height: auto;
}

.drawer-logo-main {
    display: block;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.drawer-logo-sub {
    display: block;
    font-size: 0.7rem;
    color: var(--accent);
    font-weight: 500;
}

.drawer-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.drawer-close:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.drawer-nav {
    padding: 12px 0;
    flex: 1;
}

.drawer-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
    text-decoration: none;
}

[dir="rtl"] .drawer-link {
    border-left: none;
    border-right: 3px solid transparent;
}

.drawer-link i {
    width: 20px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-tertiary);
    transition: color 0.3s ease;
}

.drawer-link:hover,
.drawer-link.active {
    color: var(--accent);
    background: var(--accent-subtle);
    border-left-color: var(--accent);
}

[dir="rtl"] .drawer-link:hover,
[dir="rtl"] .drawer-link.active {
    border-right-color: var(--accent);
}

.drawer-link:hover i,
.drawer-link.active i {
    color: var(--accent);
}

.drawer-divider {
    height: 1px;
    background: var(--border-color);
    margin: 0 20px;
}

.drawer-lang-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 16px 20px;
    padding: 10px 20px;
    background: var(--accent-subtle);
    border: 1px solid var(--accent);
    border-radius: var(--radius-full);
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.drawer-lang-btn:hover {
    background: var(--accent);
    color: #fff;
}

.drawer-footer {
    padding: 16px 20px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.drawer-contact {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-decoration: none;
    transition: color 0.3s ease;
}

.drawer-contact i {
    color: var(--accent);
    width: 16px;
    text-align: center;
}

.drawer-contact:hover {
    color: var(--accent);
}

.drawer-socials {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

.drawer-socials a {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.85rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.drawer-socials a:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

@media (max-width: 1024px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }
}

@media (max-width: 768px) {
    .lang-toggle span { display: none; }
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    transition: all 0.4s ease, background-color var(--theme-transition), border-color var(--theme-transition);
}

.glass-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: #fff;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
    color: #fff;
}

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

.btn-outline:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.form-group {
    position: relative;
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 16px 20px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-subtle);
}

.form-group label {
    position: absolute;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: 0.95rem;
    pointer-events: none;
    transition: all 0.3s ease;
}

[dir="rtl"] .form-group label {
    left: auto;
    right: 20px;
}

.form-group textarea ~ label {
    top: 20px;
    transform: none;
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -10px;
    left: 14px;
    font-size: 0.75rem;
    color: var(--accent);
    background: var(--bg-primary);
    padding: 0 6px;
}

[dir="rtl"] .form-group input:focus ~ label,
[dir="rtl"] .form-group input:not(:placeholder-shown) ~ label,
[dir="rtl"] .form-group textarea:focus ~ label,
[dir="rtl"] .form-group textarea:not(:placeholder-shown) ~ label {
    left: auto;
    right: 14px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: transparent;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

[dir="rtl"] .form-group select {
    background-position: left 16px center;
    padding-right: 20px;
    padding-left: 40px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 600px) {
    .form-row { grid-template-columns: 1fr; }
}

.form-status {
    text-align: center;
    padding: 12px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    margin-top: 12px;
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    color: #10B981;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-status.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: #EF4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: var(--z-loader);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

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

.loader-inner {
    text-align: center;
}

.loader-cube {
    width: 60px;
    height: 60px;
    margin: 0 auto 32px;
    position: relative;
    transform-style: preserve-3d;
    animation: cubeRotate 2s infinite ease-in-out;
}

.cube-face {
    position: absolute;
    width: 60px;
    height: 60px;
    border: 2px solid var(--accent);
    background: var(--accent-subtle);
    opacity: 0.8;
}

.cube-face.front  { transform: translateZ(30px); }
.cube-face.back   { transform: rotateY(180deg) translateZ(30px); }
.cube-face.right  { transform: rotateY(90deg) translateZ(30px); }
.cube-face.left   { transform: rotateY(-90deg) translateZ(30px); }
.cube-face.top    { transform: rotateX(90deg) translateZ(30px); }
.cube-face.bottom { transform: rotateX(-90deg) translateZ(30px); }

@keyframes cubeRotate {
    0% { transform: rotateX(0deg) rotateY(0deg); }
    50% { transform: rotateX(180deg) rotateY(180deg); }
    100% { transform: rotateX(360deg) rotateY(360deg); }
}

.loader-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.loader-text span {
    display: inline-block;
    margin: 0 4px;
}

.loader-bar {
    width: 200px;
    height: 3px;
    background: var(--border-color);
    border-radius: 2px;
    margin: 0 auto;
    overflow: hidden;
}

.loader-bar-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    border-radius: 2px;
    transition: width 0.3s ease;
}