/* ==========================================================
   GhOsT Lab
   Components
========================================================== */

#navbar {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 50;
    width: 100%;
    overflow-x: hidden;
    border-bottom: 1px solid transparent;
    background: linear-gradient(180deg, rgba(7, 7, 7, 0.9), rgba(7, 7, 7, 0.62));
    backdrop-filter: blur(14px);
    transition: border-color var(--transition), background var(--transition);
}

#navbar.scrolled {
    border-color: var(--line);
    background: rgba(7, 7, 7, 0.92);
}

.nav {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: 26px;
    min-height: 78px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: max-content;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 800;
}

.logo img {
    width: 44px;
    height: 44px;
}

.nav-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.nav-links a {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 14px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 600;
    transition: background var(--transition), color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    background: rgba(255, 32, 45, 0.12);
    color: #FFFFFF;
}

.auth-actions {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: max-content;
}

.auth-link,
.auth-signup {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 13px;
    border-radius: var(--radius-sm);
    color: #FFFFFF;
    font-weight: 800;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.auth-link {
    border: 1px solid transparent;
    background: transparent;
}

.auth-link:hover {
    background: rgba(255, 255, 255, 0.07);
}

.auth-signup {
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.04);
}

.auth-signup:hover {
    border-color: var(--primary);
}

.auth-user {
    color: #FFFFFF;
    font-size: 0.9rem;
    font-weight: 800;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    gap: 5px;
    flex-direction: column;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.04);
}

.menu-toggle span {
    width: 18px;
    height: 2px;
    background: #FFFFFF;
    transition: transform var(--transition), opacity var(--transition);
}

.menu-open .menu-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.menu-open .menu-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.badge {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    min-height: 34px;
    padding: 7px 12px;
    border: 1px solid rgba(255, 32, 45, 0.42);
    border-radius: var(--radius-sm);
    background: rgba(255, 32, 45, 0.1);
    color: #FFFFFF;
    font-size: 0.82rem;
    font-weight: 700;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    min-width: 160px;
    padding: 0 22px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 800;
    line-height: 1;
    transition: transform var(--transition), border-color var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition);
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    border: 1px solid var(--primary);
    background: var(--primary);
    color: #FFFFFF;
    box-shadow: var(--shadow-red);
}

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

.btn-secondary {
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, 0.04);
    color: #FFFFFF;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: #FFFFFF;
}

.section-header {
    display: grid;
    justify-items: center;
    gap: 18px;
    max-width: 760px;
    margin: 0 auto 48px;
    text-align: center;
}

.section-header.left {
    justify-items: start;
    margin-inline: 0;
    text-align: left;
}

.section-title {
    max-width: 820px;
    font-size: 3.1rem;
}

.section-description {
    max-width: 720px;
    color: var(--text-secondary);
    font-size: 1.02rem;
}

.icon-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #101010;
}

.icon-box svg {
    width: 26px;
    height: 26px;
    fill: none;
    stroke: var(--primary);
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.check-list {
    display: grid;
    gap: 10px;
}

.check-list li {
    display: grid;
    grid-template-columns: 14px 1fr;
    gap: 10px;
    align-items: start;
    color: var(--text-secondary);
    font-size: 0.94rem;
}

.check-list li span {
    width: 7px;
    height: 7px;
    margin-top: 9px;
    border-radius: 50%;
    background: var(--primary);
}

.pcb-corner {
    position: absolute;
    z-index: 0;
    width: 230px;
    height: 230px;
    pointer-events: none;
    opacity: 0.28;
    background-repeat: no-repeat;
    background-size: contain;
}

.pcb-top-left {
    top: 0;
    left: 0;
    background-image: url("../assets/images/pcb-top-left.svg");
}

.pcb-top-right {
    top: 0;
    right: 0;
    background-image: url("../assets/images/pcb-top-right.svg");
}

.pcb-bottom-left {
    bottom: 0;
    left: 0;
    background-image: url("../assets/images/pcb-bottom-left.svg");
}

.pcb-bottom-right {
    right: 0;
    bottom: 0;
    background-image: url("../assets/images/pcb-bottom-right.svg");
}

.section-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-top: 36px;
    padding: 24px;
    border: 1px solid var(--line);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-md);
    background: linear-gradient(90deg, rgba(255, 32, 45, 0.12), rgba(255, 255, 255, 0.03));
}

.section-cta h3 {
    margin-bottom: 8px;
    font-size: 1.35rem;
}

.auth-modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: none;
    place-items: center;
    padding: 20px;
}

.auth-modal.active {
    display: grid;
}

.auth-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(10px);
}

.auth-dialog {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 18px;
    width: min(100%, 460px);
    max-height: min(720px, calc(100svh - 40px));
    overflow-y: auto;
    padding: 26px;
    border: 1px solid var(--line);
    border-top: 4px solid var(--primary);
    border-radius: var(--radius-md);
    background:
        linear-gradient(135deg, rgba(255, 32, 45, 0.16), rgba(255, 255, 255, 0.04) 40%),
        #101010;
    box-shadow: 0 28px 90px rgba(0, 0, 0, 0.5);
}

.auth-open {
    overflow: hidden;
}

.auth-close {
    position: absolute;
    top: 14px;
    right: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    color: #FFFFFF;
    font-weight: 900;
}

.auth-head {
    display: grid;
    gap: 10px;
    padding-right: 40px;
}

.auth-head img {
    width: 52px;
    height: 52px;
}

.auth-head span {
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 800;
}

.auth-head h2 {
    font-size: 1.75rem;
}

.auth-tabs {
    display: grid;
    gap: 8px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 5px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: rgba(0, 0, 0, 0.24);
}

.auth-tab {
    min-height: 40px;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    font-weight: 800;
}

.auth-tab.active {
    background: var(--primary);
    color: #FFFFFF;
}

.auth-form {
    display: none;
    gap: 14px;
}

.auth-form.active {
    display: grid;
}

.auth-form label {
    display: grid;
    gap: 7px;
    color: #FFFFFF;
    font-size: 0.9rem;
    font-weight: 800;
}

.auth-form input,
.auth-form select {
    width: 100%;
    min-height: 48px;
    padding: 0 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #0B0B0B;
    color: #FFFFFF;
}

.auth-form input:focus,
.auth-form select:focus {
    border-color: var(--primary);
}

.auth-message {
    min-height: 24px;
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 700;
}

@media (max-width: 900px) {
    .nav {
        grid-template-columns: auto auto;
        justify-content: space-between;
    }

    .menu-toggle {
        display: inline-flex;
    }

    .nav-links,
    .auth-actions,
    .nav-cta {
        position: fixed;
        left: 20px;
        right: 20px;
        display: none;
    }

    .nav-links {
        top: 88px;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        padding: 18px;
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        background: rgba(10, 10, 10, 0.96);
        box-shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
    }

    .nav-links a {
        justify-content: center;
        min-height: 48px;
    }

    .nav-cta {
        top: 456px;
        width: auto;
    }

    .auth-actions {
        top: 392px;
        justify-content: center;
        padding: 14px;
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        background: rgba(10, 10, 10, 0.96);
    }

    .auth-actions .auth-link,
    .auth-actions .auth-signup {
        flex: 1;
    }

    .menu-open .nav-links,
    .menu-open .auth-actions,
    .menu-open .nav-cta {
        display: flex;
    }

    .section-title {
        font-size: 2.4rem;
    }

    .section-cta {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .logo span {
        display: none;
    }

    .section-title {
        font-size: 2rem;
    }

    .btn {
        width: 100%;
    }
}