/* =========================================================
   AFFIZER — COMPONENTS
   Header, Navigation, Login, Cards
   ========================================================= */


/* =========================================================
   Header
   ========================================================= */

.site-header {
    position: fixed;
    z-index: 1000;
    top: 0;
    left: 0;
    width: 100%;

    border-bottom: 1px solid transparent;

    background: rgba(5, 10, 18, 0.72);

    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);

    transition:
        background var(--transition),
        border-color var(--transition),
        box-shadow var(--transition);
}

.site-header.scrolled {
    background: rgba(5, 10, 18, 0.92);

    border-color: var(--color-border);

    box-shadow:
        0 12px 35px rgba(0, 0, 0, 0.18);
}

.header-inner {
    position: relative;

    display: flex;
    align-items: center;
    justify-content: space-between;

    min-height: var(--header-height);

    gap: 32px;
}


/* =========================================================
   Brand
   ========================================================= */

.brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;

    flex-shrink: 0;
}

.brand-mark {
    position: relative;

    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 3px;

    width: 34px;
    height: 34px;

    padding: 8px 7px;

    overflow: hidden;

    border: 1px solid rgba(32, 213, 155, 0.24);
    border-radius: 9px;

    background:
        linear-gradient(
            145deg,
            rgba(32, 213, 155, 0.16),
            rgba(32, 213, 155, 0.04)
        );

    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.brand-mark::after {
    content: "";

    position: absolute;

    width: 26px;
    height: 26px;

    top: -16px;
    right: -12px;

    border-radius: 50%;

    background: rgba(32, 213, 155, 0.22);

    filter: blur(9px);
}

.brand-mark span {
    position: relative;
    z-index: 1;

    display: block;

    width: 4px;

    border-radius: 3px 3px 1px 1px;

    background: var(--color-primary);
}

.brand-mark span:nth-child(1) {
    height: 7px;
    opacity: 0.55;
}

.brand-mark span:nth-child(2) {
    height: 12px;
    opacity: 0.78;
}

.brand-mark span:nth-child(3) {
    height: 18px;
}

.brand-name {
    font-size: 21px;
    line-height: 1;
    font-weight: 750;

    letter-spacing: -0.045em;
}


/* =========================================================
   Desktop navigation
   ========================================================= */

.desktop-nav {
    display: flex;
    align-items: center;
    justify-content: center;

    gap: clamp(18px, 2vw, 30px);

    margin-left: auto;
}

.desktop-nav a {
    position: relative;

    padding: 8px 0;

    font-size: 13px;
    font-weight: 550;

    color: #9eabb9;

    transition: color var(--transition);
}

.desktop-nav a::after {
    content: "";

    position: absolute;
    left: 0;
    bottom: 3px;

    width: 0;
    height: 1px;

    background: var(--color-primary);

    transition: width var(--transition);
}

.desktop-nav a:hover {
    color: var(--color-text);
}

.desktop-nav a:hover::after {
    width: 100%;
}


/* =========================================================
   Header actions
   ========================================================= */

.header-actions {
    position: relative;

    display: flex;
    align-items: center;

    gap: 10px;

    flex-shrink: 0;
}

.login-menu {
    position: relative;
}

.login-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;

    min-height: 44px;

    padding: 0 14px;

    border: 0;

    background: transparent;

    font-size: 13px;
    font-weight: 600;

    color: #b7c1cd;

    cursor: pointer;

    transition: color var(--transition);
}

.login-trigger:hover,
.login-trigger[aria-expanded="true"] {
    color: #fff;
}

.chevron {
    width: 7px;
    height: 7px;

    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;

    transform:
        translateY(-2px)
        rotate(45deg);

    transition: transform var(--transition);
}

.login-trigger[aria-expanded="true"] .chevron {
    transform:
        translateY(2px)
        rotate(225deg);
}

.header-join {
    min-height: 42px;
    padding-inline: 17px;
}


/* =========================================================
   Login dropdown
   ========================================================= */

.login-dropdown {
    position: absolute;

    top: calc(100% + 14px);
    right: 0;

    width: min(360px, calc(100vw - 32px));

    padding: 24px;

    visibility: hidden;
    opacity: 0;

    pointer-events: none;

    transform:
        translateY(-6px)
        scale(0.985);

    transform-origin: top right;

    border: 1px solid var(--color-border-strong);
    border-radius: 18px;

    background:
        linear-gradient(
            180deg,
            rgba(14, 27, 43, 0.99),
            rgba(7, 15, 25, 0.99)
        );

    box-shadow:
        0 28px 80px rgba(0, 0, 0, 0.48);

    transition:
        opacity var(--transition),
        visibility var(--transition),
        transform var(--transition);
}

.login-dropdown::before {
    content: "";

    position: absolute;

    top: -6px;
    right: 36px;

    width: 11px;
    height: 11px;

    border-top: 1px solid var(--color-border-strong);
    border-left: 1px solid var(--color-border-strong);

    background: #0d1a29;

    transform: rotate(45deg);
}

.login-dropdown.open {
    visibility: visible;
    opacity: 1;

    pointer-events: auto;

    transform:
        translateY(0)
        scale(1);
}

.login-dropdown-head {
    margin-bottom: 21px;
}

.login-kicker {
    display: block;

    margin-bottom: 10px;

    font-size: 9px;
    line-height: 1;

    font-weight: 750;
    letter-spacing: 0.16em;

    color: var(--color-primary);
}

.login-dropdown-head h2 {
    margin-bottom: 7px;

    font-size: 23px;
    font-weight: 650;

    letter-spacing: -0.035em;
}

.login-dropdown-head p {
    margin-bottom: 0;

    font-size: 12px;

    color: var(--color-text-muted);
}

.login-form {
    display: grid;
    gap: 15px;
}

.form-group {
    display: grid;
    gap: 7px;
}

.form-group label {
    font-size: 11px;
    font-weight: 650;

    color: #cbd4dd;
}

.field-row {
    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 15px;
}

.forgot-link {
    font-size: 10px;

    color: #8190a1;

    transition: color var(--transition);
}

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

.form-group input {
    width: 100%;
    height: 46px;

    padding: 0 13px;

    border: 1px solid var(--color-border);
    border-radius: 10px;

    outline: none;

    color: var(--color-text);

    background: rgba(255, 255, 255, 0.035);

    transition:
        border-color var(--transition),
        background var(--transition),
        box-shadow var(--transition);
}

.form-group input::placeholder {
    color: #536273;
}

.form-group input:hover {
    border-color: rgba(255, 255, 255, 0.16);
}

.form-group input:focus {
    border-color: rgba(32, 213, 155, 0.55);

    background: rgba(255, 255, 255, 0.05);

    box-shadow:
        0 0 0 3px rgba(32, 213, 155, 0.08);
}

.login-submit {
    width: 100%;
    height: 47px;

    margin-top: 3px;

    border: 1px solid var(--color-primary);
    border-radius: 10px;

    color: #03140e;

    background: var(--color-primary);

    font-size: 12px;
    font-weight: 750;

    cursor: pointer;

    transition:
        background var(--transition),
        transform var(--transition),
        box-shadow var(--transition);
}

.login-submit:hover {
    background: var(--color-primary-hover);

    transform: translateY(-1px);

    box-shadow:
        0 10px 28px
        rgba(32, 213, 155, 0.16);
}

.login-register {
    display: flex;
    align-items: center;
    justify-content: center;

    gap: 6px;

    margin-top: 18px;
    padding-top: 18px;

    border-top: 1px solid var(--color-border);

    font-size: 11px;

    color: var(--color-text-muted);
}

.login-register a {
    font-weight: 650;

    color: var(--color-primary);
}


/* =========================================================
   Mobile navigation
   ========================================================= */

.mobile-menu-trigger {
    display: none;

    position: relative;

    width: 42px;
    height: 42px;

    padding: 0;

    border: 1px solid var(--color-border);
    border-radius: 10px;

    background: rgba(255, 255, 255, 0.03);

    cursor: pointer;
}

.mobile-menu-trigger span {
    position: absolute;
    left: 12px;

    display: block;

    width: 17px;
    height: 1px;

    background: #fff;

    transition:
        top var(--transition),
        transform var(--transition);
}

.mobile-menu-trigger span:first-child {
    top: 16px;
}

.mobile-menu-trigger span:last-child {
    top: 23px;
}

.mobile-menu-trigger[aria-expanded="true"] span:first-child {
    top: 20px;
    transform: rotate(45deg);
}

.mobile-menu-trigger[aria-expanded="true"] span:last-child {
    top: 20px;
    transform: rotate(-45deg);
}

.mobile-nav {
    display: none;

    position: absolute;

    top: 100%;
    left: 0;

    width: 100%;

    padding: 10px 24px 24px;

    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);

    background: rgba(5, 10, 18, 0.98);

    box-shadow:
        0 25px 60px rgba(0, 0, 0, 0.28);
}

.mobile-nav.open {
    display: block;
}

.mobile-nav nav {
    display: grid;
}

.mobile-nav nav > a {
    padding: 14px 2px;

    border-bottom: 1px solid var(--color-border);

    font-size: 14px;

    color: #b9c4cf;
}

.mobile-nav-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;

    gap: 10px;

    margin-top: 20px;
}


/* =========================================================
   Feature cards
   ========================================================= */

.feature-grid {
    display: grid;

    grid-template-columns:
        repeat(3, minmax(0, 1fr));

    border-top: 1px solid var(--color-border);
    border-left: 1px solid var(--color-border);
}

.feature-card {
    position: relative;

    min-height: 245px;

    padding: 30px;

    border-right: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);

    background:
        rgba(255, 255, 255, 0.012);

    transition:
        background var(--transition),
        transform var(--transition);
}

.feature-card:hover {
    z-index: 1;

    background:
        rgba(32, 213, 155, 0.035);
}

.feature-number {
    display: inline-block;

    margin-bottom: 48px;

    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.12em;

    color: var(--color-primary);
}

.feature-card h3 {
    margin-bottom: 12px;

    font-size: 20px;
    font-weight: 620;
}

.feature-card p {
    max-width: 310px;

    margin-bottom: 0;

    font-size: 13px;
    line-height: 1.75;

    color: var(--color-text-muted);
}


/* =========================================================
   Vertical cards
   ========================================================= */

.vertical-grid {
    display: grid;

    grid-template-columns:
        repeat(4, minmax(0, 1fr));

    gap: 12px;
}

.vertical-card {
    position: relative;

    min-height: 320px;

    display: flex;
    flex-direction: column;

    padding: 27px;

    overflow: hidden;

    border: 1px solid var(--color-border);
    border-radius: 18px;

    background:
        linear-gradient(
            155deg,
            rgba(255, 255, 255, 0.035),
            rgba(255, 255, 255, 0.012)
        );

    transition:
        border-color var(--transition),
        transform var(--transition),
        background var(--transition);
}

.vertical-card::before {
    content: "";

    position: absolute;

    top: -70px;
    right: -70px;

    width: 150px;
    height: 150px;

    border-radius: 50%;

    background:
        rgba(32, 213, 155, 0.08);

    filter: blur(15px);

    opacity: 0;

    transition: opacity var(--transition);
}

.vertical-card:hover {
    transform: translateY(-4px);

    border-color:
        rgba(32, 213, 155, 0.25);

    background:
        linear-gradient(
            155deg,
            rgba(32, 213, 155, 0.045),
            rgba(255, 255, 255, 0.012)
        );
}

.vertical-card:hover::before {
    opacity: 1;
}

.vertical-index {
    position: relative;
    z-index: 1;

    display: block;

    margin-bottom: auto;

    font-size: 10px;
    font-weight: 700;

    color: var(--color-primary);
}

.vertical-card h3 {
    position: relative;
    z-index: 1;

    margin-bottom: 12px;

    font-size: 26px;
    font-weight: 620;
}

.vertical-card p {
    position: relative;
    z-index: 1;

    min-height: 68px;

    margin-bottom: 22px;

    font-size: 12px;
    line-height: 1.7;

    color: var(--color-text-muted);
}

.vertical-model {
    position: relative;
    z-index: 1;

    display: inline-flex;

    width: fit-content;

    padding: 7px 9px;

    border: 1px solid var(--color-border);
    border-radius: 6px;

    font-size: 8px;
    font-weight: 700;
    letter-spacing: 0.08em;

    color: #9aa8b6;
}


/* =========================================================
   Responsive components
   ========================================================= */

@media (max-width: 1080px) {

    .desktop-nav {
        gap: 17px;
    }

    .desktop-nav a {
        font-size: 12px;
    }

    .vertical-grid {
        grid-template-columns:
            repeat(2, minmax(0, 1fr));
    }
}


@media (max-width: 920px) {

    .desktop-nav,
    .login-menu,
    .header-join {
        display: none;
    }

    .mobile-menu-trigger {
        display: block;
    }

    .feature-grid {
        grid-template-columns:
            repeat(2, minmax(0, 1fr));
    }
}


@media (max-width: 680px) {

    .brand-name {
        font-size: 19px;
    }

    .brand-mark {
        width: 32px;
        height: 32px;
    }

    .mobile-nav {
        padding-inline: 16px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        min-height: auto;
        padding: 25px;
    }

    .feature-number {
        margin-bottom: 32px;
    }

    .vertical-grid {
        grid-template-columns: 1fr;
    }

    .vertical-card {
        min-height: 275px;
    }

    .mobile-nav-actions {
        grid-template-columns: 1fr;
    }
}