.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--weight-medium);
    text-decoration: none;
    border-radius: var(--radius-full);
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-out);
    cursor: none;
}

.btn__text {
    position: relative;
    z-index: 1;
}

.btn__icon {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    transition: transform var(--duration-normal) var(--ease-out);
}

.btn__icon svg {
    width: 100%;
    height: 100%;
}

.btn:hover .btn__icon {
    transform: translateX(4px);
}


.btn--primary {
    background: var(--color-primary);
    color: var(--color-cream);
    border: 2px solid var(--color-primary);
}

.btn--primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-cream);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--duration-normal) var(--ease-expo-out);
}

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

.btn--primary:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}


.btn--secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--color-lavender);
}

.btn--secondary:hover {
    border-color: var(--color-sage);
    color: var(--color-sage);
}


.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-lg) 0;
    transition: all var(--duration-normal) var(--ease-out);
}

.header.scrolled {
    padding: var(--space-md) 0;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

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

.nav__logo {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: var(--weight-bold);
    color: var(--text-primary);
    transition: color var(--duration-fast) var(--ease-out);
}

.nav__logo:hover {
    color: var(--color-primary);
}

.nav__links {
    display: none;
    align-items: center;
    gap: var(--space-2xl);
    list-style: none;
}

@media (min-width: 768px) {
    .nav__links {
        display: flex;
    }
}

.nav__link {
    position: relative;
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    transition: color var(--duration-fast) var(--ease-out);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--duration-normal) var(--ease-expo-out);
}


.nav__link:nth-child(1)::after { background: var(--color-primary); }
.nav__link:nth-child(2)::after { background: var(--color-coral); }
.nav__link:nth-child(3)::after { background: var(--color-sage); }

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

.nav__link:hover::after {
    width: 100%;
}


.nav__toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    width: 40px;
    height: 40px;
    padding: 8px;
    cursor: none;
}

@media (min-width: 768px) {
    .nav__toggle {
        display: none;
    }
}

.nav__toggle-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--duration-normal) var(--ease-out);
}

.nav__toggle.active .nav__toggle-line:first-child {
    transform: rotate(45deg) translate(3px, 3px);
}

.nav__toggle.active .nav__toggle-line:last-child {
    transform: rotate(-45deg) translate(3px, -3px);
}


.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal-backdrop);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-slow) var(--ease-expo-out);
}

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

.mobile-menu__links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
    list-style: none;
}

.mobile-menu__link {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: var(--weight-bold);
    color: var(--text-primary);
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--duration-normal) var(--ease-out);
}

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

.mobile-menu.active .mobile-menu__link:nth-child(1) { transition-delay: 100ms; }
.mobile-menu.active .mobile-menu__link:nth-child(2) { transition-delay: 200ms; }
.mobile-menu.active .mobile-menu__link:nth-child(3) { transition-delay: 300ms; }

.mobile-menu__link:hover {
    color: var(--color-primary);
}


.footer {
    padding: var(--space-2xl) 0;
    border-top: 1px solid var(--color-gray-800);
}

.footer__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
}

@media (min-width: 768px) {
    .footer__content {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer__copyright {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.footer__links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.4rem;
}

.footer__link {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color 0.2s ease;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    font-family: var(--font-body);
}

.footer__link:hover {
    color: var(--color-primary-light);
}

.footer__link-sep {
    font-size: 0.75rem;
    color: var(--color-gray-700);
    user-select: none;
}

.footer__social {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    transition: all var(--duration-fast) var(--ease-out);
}

.footer__social-link svg {
    width: 20px;
    height: 20px;
}

.footer__social-link:hover {
    color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.1);
}


.footer__social-link:nth-child(1):hover { color: var(--color-primary); background: rgba(var(--color-primary-rgb), 0.15); }
.footer__social-link:nth-child(2):hover { color: var(--color-coral); background: rgba(var(--color-coral-rgb), 0.15); }
.footer__social-link:nth-child(3):hover { color: var(--color-sage); background: rgba(var(--color-sage-rgb), 0.15); }
.footer__social-link:nth-child(4):hover { color: var(--color-lilac); background: rgba(var(--color-lilac-rgb), 0.15); }


.tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-full);
}


/* ========================================
   Language Toggle
   ======================================== */

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 4px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.lang-btn {
    position: relative;
    padding: 6px 12px;
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    color: var(--text-tertiary);
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
}

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

.lang-btn.active {
    color: var(--color-cream);
    background: var(--color-primary);
}

.lang-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-full);
    opacity: 0;
    transition: opacity var(--duration-fast) var(--ease-out);
}

.lang-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Desktop nav language toggle */
.nav__lang {
    margin-left: var(--space-lg);
    display: none;
}

@media (min-width: 768px) {
    .nav__lang {
        display: flex;
    }
}

/* Mobile menu language toggle */
.mobile-menu__lang {
    margin-top: var(--space-xl);
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--duration-normal) var(--ease-out);
}

.mobile-menu.active .mobile-menu__lang {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 400ms;
}

/* Larger toggle for mobile */
.mobile-menu__lang .lang-btn {
    padding: 10px 20px;
    font-size: var(--text-sm);
}