/* ═══════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 50%, var(--accent-dark) 100%);
    color: var(--white);
    box-shadow: var(--shadow-accent);
}

.btn-accent:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 18px 50px rgba(217, 119, 6, 0.45);
}

.btn-dark {
    background: var(--primary);
    color: var(--white);
    box-shadow: var(--shadow-dark);
}

.btn-dark:hover {
    background: var(--primary-light);
    transform: translateY(-3px);
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.4);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.08);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--accent-light);
    transform: translateY(-3px);
}

.btn-whatsapp {
    background: var(--whatsapp);
    color: var(--white);
    box-shadow: 0 12px 40px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 50px rgba(37, 211, 102, 0.4);
    background: #20bd5a;
}

.btn-lg {
    padding: 1.2rem 2.5rem;
    font-size: 1.05rem;
}

.btn-icon {
    font-size: 1.2rem;
}

/* ═══════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════ */

.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.site-nav.scrolled {
    padding: 0.7rem 2.5rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-brand img {
    height: 50px;
    width: auto;
    transition: var(--transition);
}

.site-nav.scrolled .nav-brand img {
    height: 42px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex: 1;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    flex: 1;
    justify-content: flex-end;
}

.mobile-only-link {
    display: none;
}

.lang-switcher-dropdown {
    position: relative;
    display: inline-block;
}

.lang-current {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 1.3rem;
    padding: 0;
    color: var(--primary);
}

.lang-current .arr {
    font-size: 0.7rem;
    opacity: 0.5;
    transition: var(--transition);
}

.lang-switcher-dropdown.open .arr {
    transform: rotate(180deg);
}

.lang-current img,
.lang-dropdown img {
    height: 20px;
    width: auto;
    border-radius: 2px;
}

.lang-dropdown {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--white);
    padding: 0.75rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    gap: 0.75rem;
    min-width: 60px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
}

.lang-switcher-dropdown.open .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(8px);
}

.lang-dropdown a {
    text-decoration: none;
    font-size: 1.3rem;
    display: flex;
    justify-content: center;
    transition: var(--transition);
}

.lang-dropdown a:hover {
    transform: scale(1.15);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--primary);
    font-weight: 500;
    font-size: 0.92rem;
    position: relative;
    padding: 0.25rem 0;
}

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

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

.nav-menu a:hover {
    color: var(--accent-dark);
}

.nav-cta {
    background: var(--accent) !important;
    color: var(--white) !important;
    padding: 0.65rem 1.4rem !important;
    border-radius: var(--radius-full) !important;
    font-weight: 600 !important;
    font-size: 0.9rem !important;
    box-shadow: var(--shadow-accent);
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    background: var(--accent-dark) !important;
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(217, 119, 6, 0.4);
}

.wa-nav-cta {
    background: var(--whatsapp) !important;
    box-shadow: 0 12px 35px rgba(37, 211, 102, 0.3);
}

.wa-nav-cta:hover {
    background: #20bd5a !important;
    box-shadow: 0 12px 35px rgba(37, 211, 102, 0.4);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
    z-index: 1001;
}

.nav-toggle span {
    width: 26px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}