/* =====================================================================
   WORLD3D — opt-in 3D explorable mode overlay
   Sits above the normal scrollable site; only shown when activated.
   ===================================================================== */

/* entry button (lives in the hero CTA next to the primary button) */
.btn-3d {
    display: inline-block;
    margin-left: 14px;
    padding: 15px 34px;
    border-radius: 50px;
    font-family: var(--font-primary, 'Orbitron', monospace);
    font-weight: 700;
    letter-spacing: 1px;
    color: #fff;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #8b00ff, #00ffff);
    box-shadow: 0 0 22px rgba(139, 0, 255, 0.45);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-3d:hover {
    color: #fff;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 0 34px rgba(0, 255, 255, 0.6);
}

.btn-3d::before {
    content: '';
    position: absolute;
    inset: 0;
    left: -100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s;
}

.btn-3d:hover::before { left: 100%; }

@media (max-width: 768px) {
    .btn-3d { margin-left: 0; margin-top: 16px; }
}

/* ---------------------------------------------------------------------
   overlay
   --------------------------------------------------------------------- */
.world3d-overlay {
    position: fixed;
    inset: 0;
    z-index: 12000;
    background: radial-gradient(circle at 50% 40%, #0a1020, #04060c 70%);
    display: none;
    overflow: hidden;
    cursor: grab;
    font-family: var(--font-secondary, 'Rajdhani', sans-serif);
}

.world3d-overlay.w3d-active { display: block; }
.world3d-overlay.w3d-dragging { cursor: grabbing; }

.world3d-overlay canvas { display: block; }

/* cinematic vignette (above canvas, below UI) */
.w3d-vignette {
    position: absolute;
    inset: 0;
    z-index: 3;
    pointer-events: none;
    background:
        radial-gradient(120% 90% at 50% 45%, transparent 55%, rgba(2, 4, 10, 0.55) 100%),
        linear-gradient(180deg, rgba(2,4,10,0.35) 0%, transparent 18%, transparent 80%, rgba(2,4,10,0.45) 100%);
}

/* loader */
.w3d-loader {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    text-align: center;
    z-index: 5;
    color: #fff;
}

.w3d-loader .w3d-spin {
    width: 64px;
    height: 64px;
    margin: 0 auto 18px;
    border: 3px solid rgba(0, 255, 255, 0.15);
    border-top-color: #00ffff;
    border-radius: 50%;
    animation: w3d-spin 1s linear infinite;
}

.w3d-loader .w3d-load-text {
    font-family: var(--font-primary, 'Orbitron', monospace);
    letter-spacing: 3px;
    color: #00ffff;
}

.w3d-loader .w3d-load-sub {
    margin-top: 8px;
    font-size: 0.85rem;
    color: #8aa;
}

@keyframes w3d-spin { to { transform: rotate(360deg); } }

/* top bar (slim, left-aligned so it never covers 3D labels) */
.w3d-topbar {
    position: absolute;
    top: 18px;
    left: 18px;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 14px;
    background: rgba(8, 12, 22, 0.62);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(120, 230, 255, 0.22);
    border-radius: 40px;
    color: #cfe;
    font-size: 0.72rem;
    letter-spacing: 0.5px;
    pointer-events: none;
    max-width: min(60vw, 520px);
}

.w3d-topbar b { color: #ffd34d; }

.w3d-exit {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 12;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 30px;
    cursor: pointer;
    color: #fff;
    background: rgba(8, 12, 22, 0.75);
    border: 1px solid rgba(255, 90, 120, 0.5);
    font-family: var(--font-primary, 'Orbitron', monospace);
    font-size: 0.78rem;
    letter-spacing: 1px;
    transition: all 0.25s ease;
}

.w3d-exit:hover {
    background: rgba(255, 80, 110, 0.2);
    box-shadow: 0 0 18px rgba(255, 80, 110, 0.4);
    transform: translateY(-2px);
}

/* interaction prompt */
.w3d-prompt {
    position: absolute;
    bottom: 16%;
    left: 50%;
    transform: translateX(-50%) translateY(16px);
    z-index: 10;
    padding: 12px 22px;
    border-radius: 14px;
    background: rgba(8, 12, 22, 0.8);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 211, 77, 0.5);
    box-shadow: 0 0 26px rgba(255, 211, 77, 0.25);
    color: #fff;
    text-align: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.w3d-prompt.w3d-show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.w3d-prompt .w3d-prompt-name {
    font-family: var(--font-primary, 'Orbitron', monospace);
    font-size: 1.1rem;
    color: #ffd34d;
    margin-bottom: 4px;
}

.w3d-prompt .w3d-key {
    display: inline-grid;
    place-items: center;
    min-width: 26px;
    height: 26px;
    padding: 0 8px;
    margin: 0 4px;
    border-radius: 6px;
    background: #00ffff;
    color: #04060c;
    font-weight: 700;
    font-family: var(--font-primary, 'Orbitron', monospace);
}

/* content panel */
.w3d-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: min(560px, 94vw);
    height: 100%;
    z-index: 20;
    background: rgba(8, 12, 22, 0.92);
    backdrop-filter: blur(18px);
    border-left: 1px solid rgba(120, 230, 255, 0.3);
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.6);
    transform: translateX(105%);
    transition: transform 0.5s cubic-bezier(.16,.84,.44,1);
    display: flex;
    flex-direction: column;
}

.w3d-panel.w3d-open { transform: translateX(0); }

.w3d-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 24px 16px;
    border-bottom: 1px solid rgba(120, 230, 255, 0.18);
}

.w3d-panel-head h2 {
    font-family: var(--font-primary, 'Orbitron', monospace);
    font-size: 1.5rem;
    background: linear-gradient(135deg, #00ffff, #8b00ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.w3d-panel-close {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    cursor: pointer;
    color: #cfe;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.15);
    font-size: 1.1rem;
    transition: all 0.2s ease;
}

.w3d-panel-close:hover {
    color: #fff;
    border-color: #00ffff;
    box-shadow: 0 0 14px rgba(0,255,255,0.4);
    transform: rotate(90deg);
}

.w3d-panel-body {
    padding: 22px 24px 40px;
    overflow-y: auto;
    flex: 1;
}

/* reset cloned content margins/positioning so it reads as a flat panel */
.w3d-panel-body .timeline::before { display: none; }
.w3d-panel-body .timeline-item,
.w3d-panel-body .timeline-item:nth-child(odd),
.w3d-panel-body .timeline-item:nth-child(even) {
    width: 100%;
    left: 0 !important;
    padding: 0 0 18px 0 !important;
}
.w3d-panel-body .timeline-card::before { display: none; }
.w3d-panel-body .about-content,
.w3d-panel-body .about-info { grid-template-columns: 1fr; gap: 18px; }
.w3d-panel-body .skills-grid,
.w3d-panel-body .services-grid,
.w3d-panel-body .tools-grid { grid-template-columns: 1fr; }

/* mobile controls */
.w3d-joystick {
    position: absolute;
    left: 26px;
    bottom: 30px;
    width: 120px;
    height: 120px;
    z-index: 11;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(120, 230, 255, 0.3);
    touch-action: none;
    display: none;
}

.w3d-joystick .w3d-stick {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 52px;
    height: 52px;
    margin: -26px 0 0 -26px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, #7cf7ff, #0080ff);
    box-shadow: 0 0 16px rgba(0,255,255,0.5);
}

.w3d-action {
    position: absolute;
    right: 30px;
    bottom: 46px;
    width: 78px;
    height: 78px;
    z-index: 11;
    border-radius: 50%;
    display: none;
    place-items: center;
    cursor: pointer;
    color: #04060c;
    font-family: var(--font-primary, 'Orbitron', monospace);
    font-weight: 900;
    font-size: 1.4rem;
    background: radial-gradient(circle at 35% 30%, #fff3b0, #ffd34d 60%, #f5a623);
    border: 2px solid #fff;
    box-shadow: 0 0 22px rgba(255,211,77,0.6);
    opacity: 0.4;
    transition: opacity 0.2s ease, transform 0.1s ease;
}

.w3d-action.w3d-ready { opacity: 1; }
.w3d-action:active { transform: scale(0.92); }

body.w3d-touch .w3d-joystick,
body.w3d-touch .w3d-action { display: grid; }
body.w3d-touch .w3d-joystick { display: block; }

/* minimap-ish compass */
.w3d-hint {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9;
    font-size: 0.74rem;
    letter-spacing: 1px;
    color: #6a8;
    pointer-events: none;
}

body.w3d-touch .w3d-hint { display: none; }

@media (max-width: 768px) {
    .w3d-topbar { font-size: 0.72rem; gap: 8px; padding: 6px 12px; }
    .w3d-panel-head h2 { font-size: 1.2rem; }
}