@import url("variables.css");

/* Poppins (body) + Playfair Display (headings) */
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600&family=Playfair+Display:ital,wght@0,400..900;1,400..900&display=swap");

/* Header base styles */
.header {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 2000;

    /* Default plum glass background */
    background-color: rgba(var(--plum-rgb), 0.95);

    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(var(--shadow-rgb),0.4);

    transition: background-color 0.4s, -webkit-backdrop-filter 0.4s, backdrop-filter 0.4s, box-shadow 0.4s;

    /* Anti-flicker fix */
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

/* Transparent override for pages at top of scroll */
body.transparent-header .header {
    background-color: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none;
}

/* Scrolled state */
.header.scroll-header,
body.transparent-header .header.scroll-header {
    background-color: rgba(var(--plum-rgb), 0.99) !important;
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    box-shadow: 0 4px 25px rgba(var(--shadow-rgb),0.5);
}

/* Mobile-first base styles (under 1024px) */
.nav {
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
    position: relative;
}

.nav__logo, .nav__toggle, .nav__close {
    display: flex;
    color: var(--white-color);
}

.nav__logo {
    font-family: var(--luxury-font);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-decoration: none;
}

.nav__toggle {
    font-size: 1.5rem;
    cursor: pointer;
}

/* Mobile off-canvas menu */
.nav__menu {
    position: fixed;
    background-color: var(--body-color);
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    padding: 4rem 2rem;
    transition: .4s;
    box-shadow: -2px 0 4px rgba(var(--shadow-rgb), 0.3);
    z-index: var(--z-fixed);
    background-color: rgba(var(--plum-rgb), 0.98);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    overflow-y: auto;
}

.show-menu {
    right: 0 !important;
}

.nav__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    row-gap: 2rem;
}

.nav__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Nav links */
.nav__link {
    font-family: var(--luxury-font);
    font-weight: var(--font-medium);
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-decoration: none;
    color: var(--white-color) !important;
    position: relative;
    transition: .4s ease;
    background: none;
    padding: 0.5rem 0;
}

.nav__link::after {
    content: "";
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -5px;
    left: 50%;
    background-color: var(--first-color);
    transition: all 0.4s ease-in-out;
    transform: translateX(-50%);
}

/* Keep nav links light on active/focus/visited */
.nav__link:active,
.nav__link:focus,
.nav__link:visited {
    color: var(--white-color) !important;
}

.dropdown__link:active,
.dropdown__link:focus,
.dropdown__link:visited {
    color: var(--first-color-light) !important;
}

.dropdown__link.active-link,
.nav__link.active-link {
    color: var(--first-color-light) !important;
}

.nav__item {
    white-space: nowrap; 
    width: 100%;
    text-align: center;
}

/* Dropdown menu styles */
.dropdown__item {
    cursor: pointer;
}

/* Mobile dropdown defaults */
.dropdown__menu {
    position: static;
    background-color: transparent;
    padding: 0;
    min-width: 100%;
    display: none;
    flex-direction: column;
    align-items: center;
    row-gap: 1rem;
    margin-top: 1rem;
    transition: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    transform: none;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    border: none;
    list-style: none;
}

.dropdown__link {
    font-family: var(--luxury-font);
    font-size: 1.1rem;
    color: rgba(var(--white-rgb), 0.8);
    text-transform: uppercase;
    text-decoration: none;
    letter-spacing: 1.5px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.3s;
    padding: 1rem 0;
}

.dropdown__icon {
    font-size: 1rem;
    transition: transform 0.3s;
    margin-left: 0.5rem;
}

/* Mobile accordion open state */
.active-accordion .dropdown__menu {
    display: flex;
}

.active-accordion .dropdown__icon {
    transform: rotate(180deg);
}

/* Desktop styles (1024px and up) */
@media screen and (min-width: 1024px) {
    .nav {
        justify-content: space-between;
        position: relative;
        align-items: center;
        /* Wider than default container on desktop */
        max-width: 95% !important;
        margin: 0 auto;
    }

    .nav__logo {
        position: static;
        transform: none;
        margin-left: 0;
    }

    .nav__toggle, .nav__close {
        display: none;
    }

    /* Reset menu for desktop */
    .nav__menu {
        position: static;
        width: auto;
        height: auto;
        background: none;
        box-shadow: none;
        padding: 0;
        margin-left: auto;
        overflow: visible;
        background-color: transparent;
        -webkit-backdrop-filter: none;
        backdrop-filter: none;
    }

    .nav__list {
        display: flex;
        flex-direction: row;
        column-gap: 3.5rem; 
        align-items: center;
        justify-content: flex-end; 
    }

    .nav__item {
        width: auto;
    }

    /* Desktop dropdown */
    .dropdown__item {
        position: relative;
    }

    .dropdown__menu {
        position: absolute;
        top: 100%;
        left: 0;
        background-color: rgba(var(--plum-rgb), 0.95);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        padding: 1rem 0;
        border-radius: 0.25rem;
        box-shadow: 0 10px 40px rgba(var(--shadow-rgb),0.4);
        border: 1px solid rgba(var(--white-rgb), 0.08);
        display: flex;
        flex-direction: column;
        align-items: stretch;
        min-width: 260px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(15px);
        transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
        margin-top: 0;
        list-style: none;
    }

    .dropdown__link {
        padding: 0.75rem 2rem;
        width: 100%;
        border-left: 3px solid transparent; 
        justify-content: flex-start;
    }

    .dropdown__link:hover {
        color: var(--white-color);
        background: rgba(var(--white-rgb), 0.05);
        border-left: 3px solid var(--first-color);
        padding-left: 2.5rem;
    }

    /* Hover reveal */
    .dropdown__item:hover .dropdown__menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .dropdown__item:hover .dropdown__icon {
        transform: rotate(180deg);
    }

    /* Desktop font sizes */
    .nav__link {
        font-size: 0.9rem;
        padding: 0;
    }

    .dropdown__link {
        font-size: 0.85rem;
        padding: 0.75rem 2rem;
        justify-content: flex-start;
    }

    /* Desktop page layout tweaks */
    .home__container {
      position: relative;
      grid-template-columns: repeat(2, 1fr);
    }
    .home__img {
      top: -9rem;
      left: 4rem;
    }
    .home__data {
      padding-top: 8rem;
    }
    .specs__img {
      width: 300px;
    }
    .case__container {
      column-gap: 5rem;
    }
    .case__img {
      width: 300px;
    }
    .case__description {
      margin-bottom: var(--mb-2);
    }
    .footer__container {
      grid-template-columns: .4fr .7fr .7fr 1fr;
    }
}