/* ============================================
   E-BIKE PORTUGAL - Header & Navigation
   ============================================ */

/* Animated Logo Text - Premium Style */
.logo-text-animated {
    display: flex;
    flex-direction: column;
    margin-left: 15px;
    position: relative;
}

.logo-name {
    font-family: 'Playfair Display', 'Georgia', serif;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: #fff;
    text-shadow: 0 0 10px rgba(245, 166, 35, 0.5),
        0 0 20px rgba(126, 211, 33, 0.3),
        0 2px 4px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
}

.logo-tagline {
    font-family: 'Raleway', 'Arial', sans-serif;
    font-size: 0.7rem;
    font-weight: 500;
    color: rgba(126, 211, 33, 0.9);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 2px;
}

.header--scrolled .logo-name {
    color: #1a3a2a;
    text-shadow: 0 0 10px rgba(245, 166, 35, 0.3),
        0 1px 2px rgba(0, 0, 0, 0.1);
}

.header--scrolled .logo-tagline {
    color: rgba(45, 90, 61, 0.8);
}

/* Individual letters for GSAP animation */
.letter {
    display: inline-block;
    opacity: 0;
    transform: translateY(-20px) rotateX(90deg);
}

/* === HEADER === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-4) 0;
    transition: all var(--transition-base);
}

.header--transparent {
    background: transparent;
}

.header--scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: var(--shadow-md);
    padding: var(--space-3) 0;
}

.header--scrolled .nav-link {
    color: var(--dark);
}

.header--scrolled .nav-link:hover {
    color: var(--primary);
}

.header--scrolled .logo-light {
    display: none;
}

.header--scrolled .logo-dark {
    display: block;
}

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

/* === LOGO === */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}

.header--scrolled .logo {
    color: var(--dark);
}

.logo img {
    height: 45px;
    width: auto;
}

.logo-dark {
    display: none;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-text span:first-child {
    font-size: var(--text-lg);
    font-weight: 700;
}

.logo-text span:last-child {
    font-size: var(--text-xs);
    font-weight: 400;
    opacity: 0.8;
}

/* === NAVIGATION === */
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--white);
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary-light);
    background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
    color: var(--primary-light);
}

/* Dropdown Arrow */
.nav-link--dropdown::after {
    content: '';
    width: 6px;
    height: 6px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link--dropdown::after {
    transform: rotate(-135deg);
}

/* === DROPDOWN MENU === */
.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    padding: var(--space-2);
    z-index: var(--z-dropdown);
}

.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    color: var(--dark);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.dropdown-link:hover {
    background: var(--gray-100);
    color: var(--primary);
}

/* === LANGUAGE SWITCHER === */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    margin-left: var(--space-4);
    padding-left: var(--space-4);
    border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.header--scrolled .lang-switcher {
    border-left-color: var(--gray-300);
}

/* Logo Image Styling */
.logo-img {
    height: 90px;
    width: auto;
    transition: all var(--transition-base);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.header--scrolled .logo-img {
    height: 70px;
}

.logo-img:hover {
    filter: drop-shadow(0 4px 12px rgba(45, 90, 61, 0.4));
    transform: scale(1.05);
}

.lang-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--white);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn:hover,
.lang-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

.header--scrolled .lang-btn {
    color: var(--dark);
    border-color: var(--gray-300);
}

.header--scrolled .lang-btn:hover,
.header--scrolled .lang-btn.active {
    color: var(--white);
    background: var(--primary);
    border-color: var(--primary);
}

/* === CTA BUTTON === */
.nav-cta {
    margin-left: var(--space-4);
}

.nav-cta .btn {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
}

/* === MOBILE MENU TOGGLE === */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: calc(var(--z-fixed) + 10);
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.header--scrolled .menu-toggle span {
    background: var(--dark);
}

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

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

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

/* === MOBILE NAVIGATION === */
@media (max-width: 992px) {
    .menu-toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 400px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: var(--space-24) var(--space-8);
        transition: right var(--transition-base);
        box-shadow: var(--shadow-xl);
        overflow-y: auto;
        z-index: calc(var(--z-fixed) + 20);
    }

    .nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        gap: var(--space-1);
    }

    .nav-item {
        width: 100%;
    }

    .nav-link {
        width: 100%;
        color: var(--dark);
        padding: var(--space-4);
        font-size: var(--text-base);
    }

    .nav-link:hover {
        background: var(--gray-100);
        color: var(--primary);
    }

    /* Mobile Dropdown */
    .dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        max-height: 0;
        overflow: hidden;
        padding: 0;
        transition: max-height var(--transition-base);
    }

    .nav-item.open .dropdown {
        max-height: 500px;
        padding: var(--space-2);
    }

    .dropdown-link {
        padding-left: var(--space-8);
    }

    /* Mobile Language Switcher */
    .lang-switcher {
        width: 100%;
        justify-content: center;
        margin: var(--space-6) 0;
        padding: var(--space-6) 0;
        border-left: none;
        border-top: 1px solid var(--gray-200);
        border-bottom: 1px solid var(--gray-200);
    }

    .lang-btn {
        color: var(--dark);
        border-color: var(--gray-300);
    }

    /* Mobile CTA */
    .nav-cta {
        width: 100%;
        margin: var(--space-4) 0 0;
    }

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

    /* Mobile Menu Overlay */
    .nav-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        z-index: calc(var(--z-fixed) + 5);
    }

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