/* ============================================
   MOBILE MENU — RESPONSIVE NAVIGATION
   ============================================ */

/* Hamburger toggle button (mobile only) */
.mobile-menu-toggle .hamburger-line[data-line="top"] {
    top: calc(50% - 7px);
}

.mobile-menu-toggle .hamburger-line[data-line="mid"] {
    top: 50%;
    transform: translate(-50%, -50%);
}

.mobile-menu-toggle .hamburger-line[data-line="bot"] {
    top: calc(50% + 7px);
}

/* Animated hamburger to X */
.mobile-menu-toggle.is-open .hamburger-line[data-line="top"] {
    top: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    background: var(--accent);
}

.mobile-menu-toggle.is-open .hamburger-line[data-line="mid"] {
    opacity: 0;
    transform: translate(-50%, -50%) scaleX(0);
}

.mobile-menu-toggle.is-open .hamburger-line[data-line="bot"] {
    top: 50%;
    transform: translate(-50%, -50%) rotate(-45deg);
    background: var(--accent);
}

/* Mobile menu overlay container */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 110;
    pointer-events: none;
    visibility: hidden;
}

.mobile-menu.is-open {
    pointer-events: auto;
    visibility: visible;
}

.mobile-menu-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(5, 5, 5, 0.78);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    cursor: pointer;
}

.mobile-menu.is-open .mobile-menu-backdrop {
    opacity: 1;
}

.mobile-menu-panel {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(380px, 100%);
    background: linear-gradient(180deg, #0d0d0d 0%, #050505 100%);
    border-left: 1px solid var(--border);
    box-shadow: -30px 0 80px rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
    overflow-y: auto;
    overscroll-behavior: contain;
}

.mobile-menu.is-open .mobile-menu-panel {
    transform: translateX(0);
}

/* Accent notch on the menu panel corners */
.mobile-menu-panel::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 32px;
    height: 32px;
    border-top: 2px solid var(--accent);
    border-left: 2px solid var(--accent);
    pointer-events: none;
    z-index: 2;
}

.mobile-menu-panel::after {
    content: "";
    position: absolute;
    bottom: 0;
    right: 0;
    width: 32px;
    height: 32px;
    border-bottom: 2px solid var(--accent);
    border-right: 2px solid var(--accent);
    pointer-events: none;
    z-index: 2;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(255, 84, 0, 0.04) 0%, transparent 100%);
    flex-shrink: 0;
}

.mobile-menu-label {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 1.25rem 1.5rem 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    color: var(--accent);
    text-transform: uppercase;
}

.mobile-menu-label::before {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--accent);
}

.mobile-menu-nav {
    display: flex;
    flex-direction: column;
    padding: 0.25rem 0 1rem;
    flex: 1;
}

.mobile-nav-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    font-family: 'Oswald', sans-serif;
    font-size: 1rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--fg);
    border-bottom: 1px solid var(--border);
    transition: background 0.25s ease, color 0.25s ease, padding-left 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    overflow: hidden;
}

.mobile-nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent);
    transform: scaleY(0);
    transform-origin: center;
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.mobile-nav-link:hover,
.mobile-nav-link:active,
.mobile-nav-link:focus-visible {
    background: rgba(255, 84, 0, 0.06);
    color: var(--accent);
    padding-left: 1.85rem;
}

.mobile-nav-link:hover::before,
.mobile-nav-link:active::before,
.mobile-nav-link:focus-visible::before {
    transform: scaleY(1);
}

.mobile-nav-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.1em;
    width: 28px;
    flex-shrink: 0;
}

.mobile-nav-text {
    flex: 1;
    font-weight: 500;
}

.mobile-nav-arrow {
    font-size: 0.7rem;
    color: var(--muted);
    transition: color 0.25s, transform 0.3s;
}

.mobile-nav-link:hover .mobile-nav-arrow,
.mobile-nav-link:active .mobile-nav-arrow {
    color: var(--accent);
    transform: translateX(4px);
}

/* Stagger animation for nav links on open */
.mobile-menu-nav .mobile-nav-link {
    opacity: 0;
    transform: translateX(16px);
    transition:
        background 0.25s ease,
        color 0.25s ease,
        padding-left 0.3s cubic-bezier(0.22, 1, 0.36, 1),
        opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.mobile-menu.is-open .mobile-menu-nav .mobile-nav-link {
    opacity: 1;
    transform: translateX(0);
}

.mobile-menu.is-open .mobile-menu-nav .mobile-nav-link:nth-child(2) {
    transition-delay: 0.06s;
}

.mobile-menu.is-open .mobile-menu-nav .mobile-nav-link:nth-child(3) {
    transition-delay: 0.1s;
}

.mobile-menu.is-open .mobile-menu-nav .mobile-nav-link:nth-child(4) {
    transition-delay: 0.14s;
}

.mobile-menu.is-open .mobile-menu-nav .mobile-nav-link:nth-child(5) {
    transition-delay: 0.18s;
}

.mobile-menu.is-open .mobile-menu-nav .mobile-nav-link:nth-child(6) {
    transition-delay: 0.22s;
}

.mobile-menu.is-open .mobile-menu-nav .mobile-nav-link:nth-child(7) {
    transition-delay: 0.26s;
}

.mobile-menu.is-open .mobile-menu-nav .mobile-nav-link:nth-child(8) {
    transition-delay: 0.3s;
}

.mobile-menu-footer {
    padding: 1.25rem 1.5rem 1.5rem;
    border-top: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.3);
    flex-shrink: 0;
}

.mobile-menu-cta {
    position: relative;
    overflow: hidden;
}

.mobile-menu-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent);
    transform: translateX(-101%);
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    z-index: 0;
}

.mobile-menu-cta:hover::before,
.mobile-menu-cta:active::before {
    transform: translateX(0);
}

.mobile-menu-cta>* {
    position: relative;
    z-index: 1;
}

/* Body scroll lock when menu is open */
body.mobile-menu-open {
    overflow: hidden;
}

/* Hide mobile menu on larger screens (defensive) */
@media (min-width: 1024px) {
    .mobile-menu {
        display: none !important;
    }
}

/* Slight tweaks for very small screens */
@media (max-width: 380px) {
    .mobile-menu-panel {
        width: 100%;
    }
}