/* ─── OVERFLOW & LAYOUT FIXES ─── */
*, *::before, *::after { box-sizing: border-box; }

html, body { 
    max-width: 100vw; 
    overflow-x: hidden; 
    position: relative; 
    background: transparent !important; 
    background-color: transparent !important;
}

/* Auto-Login Display Fixes */
html.auto-logged-in #login-overlay { display: none !important; opacity: 0 !important; pointer-events: none !important; }
html.auto-logged-in #main-content { display: block !important; opacity: 1 !important; }

/* Zen Mode Enhancements */
body.zen-mode nav { opacity: 0; pointer-events: none; transform: translateY(-20px); }
body.zen-mode #bg-canvas, body.zen-mode #env-bg { filter: brightness(0.3); transition: filter 0.8s; }
body.zen-mode .glass-panel { background: rgba(0,0,0,0.85); border-color: rgba(255,255,255,0.02); }

/* ─── DYNAMIC CSS THEMES & TEXT ADAPTATION ─── */
:root {
    --accent-glow: #ffb86b;
    --accent-solid: #ff6b3d;
    --accent-shadow: rgba(255, 107, 61, 0.35);
    --glass: rgba(15, 12, 20, 0.4);
    --glass-border: rgba(255, 255, 255, 0.08);
    --squircle-radius: 24px;
    --text-main: #ffffff;
    --text-muted: #9ca3af;
}

body { color: var(--text-main); font-family: 'Inter', sans-serif; min-height: 100vh; }

/* Theme Variables */
[data-theme="amoled"] { --accent-shadow: rgba(255, 107, 61, 0.35); --glass: rgba(0, 0, 0, 0.7); --text-main: #ffffff; --text-muted: #9ca3af; }
[data-theme="ocean"] { --accent-glow: #00f0ff; --accent-solid: #0088ff; --accent-shadow: rgba(0, 136, 255, 0.35); --glass: rgba(0, 30, 50, 0.5); --text-main: #e0f2fe; --text-muted: #7dd3fc; }
[data-theme="forest"] { --accent-glow: #88ff00; --accent-solid: #22cc00; --accent-shadow: rgba(34, 204, 0, 0.35); --glass: rgba(0, 40, 20, 0.5); --text-main: #dcfce7; --text-muted: #86efac; }
[data-theme="purple"] { --accent-glow: #f000ff; --accent-solid: #8800ff; --accent-shadow: rgba(136, 0, 255, 0.35); --glass: rgba(30, 0, 50, 0.5); --text-main: #f3e8ff; --text-muted: #d8b4fe; }
[data-theme="light"] { --accent-glow: #ff4500; --accent-solid: #ff6b3d; --accent-shadow: rgba(255, 107, 61, 0.2); --glass: rgba(255, 255, 255, 0.6); --glass-border: rgba(0, 0, 0, 0.1); --text-main: #111111; --text-muted: #4b5563; }

[data-theme="light"] .bg-black\/40 { background: rgba(255,255,255,0.7) !important; border-color: rgba(0,0,0,0.1); }
[data-theme="light"] .bg-white\/5 { background: rgba(0,0,0,0.05) !important; border-color: rgba(0,0,0,0.05); }

#main-content h1, #main-content h2, #main-content h3, #main-content .text-white { color: var(--text-main) !important; transition: color 0.5s ease; }
#main-content p.text-gray-400, #main-content span.text-gray-400, #main-content .text-gray-500 { color: var(--text-muted) !important; transition: color 0.5s ease; }

input[type="range"] { accent-color: var(--accent-solid); }
input[type="checkbox"] { accent-color: var(--accent-solid); }

.action-btn { 
    background: var(--accent-solid); color: #000; font-weight: 900;
    box-shadow: 0 4px 20px var(--accent-shadow); border: none; cursor: pointer; transition: all 0.3s ease; 
}
.action-btn:hover { transform: scale(1.03); box-shadow: 0 6px 25px var(--accent-shadow); }

/* ─── ENVIRONMENTAL BACKGROUND LAYERING ─── */
#env-bg {
    position: fixed; inset: 0; z-index: 1; pointer-events: none;
    background-color: #020104; transition: background-color 0.5s ease-in-out;
    background-size: cover; background-position: center; background-attachment: fixed;
}

[data-theme="default"] #env-bg { background: radial-gradient(circle at center, #11081f 0%, #020104 100%); }
[data-theme="amoled"] #env-bg { background: #000000; }
[data-theme="purple"] #env-bg { background: linear-gradient(to bottom, #1d0738 0%, #0a0014 100%); }
[data-theme="ocean"] #env-bg { background-image: linear-gradient(rgba(0, 18, 32, 0.7), rgba(0, 18, 32, 0.7)), url('https://images.unsplash.com/photo-1551244072-5d12893278ab?auto=format&fit=crop&w=1920&q=80'); }
[data-theme="forest"] #env-bg { background-image: linear-gradient(rgba(1, 26, 16, 0.7), rgba(1, 26, 16, 0.7)), url('https://images.unsplash.com/photo-1448375240586-882707db888b?auto=format&fit=crop&w=1920&q=80'); }
[data-theme="light"] #env-bg { background: #f0f0f5; }

#bg-canvas { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; z-index: 3; pointer-events: none; }

#env-moon { position: fixed; top: 5%; right: 10%; width: 150px; height: 150px; border-radius: 50%; background: radial-gradient(circle at 30% 30%, #fff, #ddd 60%, #555); box-shadow: 0 0 80px rgba(255,255,255,0.3), inset -10px -10px 20px rgba(0,0,0,0.5); z-index: 2; opacity: 0; transition: opacity 1s ease; pointer-events: none; }
[data-theme="amoled"] #env-moon { opacity: 1; }

#env-clouds { position: fixed; inset: 0; z-index: 2; pointer-events: none; overflow: hidden; opacity: 0; transition: opacity 1s ease; }
[data-theme="light"] #env-clouds { opacity: 1; }
.cloud-layer { position: absolute; background: url('https://upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Cloud_1.png/800px-Cloud_1.png') no-repeat center; background-size: contain; opacity: 0.8; animation: floatClouds linear infinite; }
@keyframes floatClouds { from { transform: translateX(-100%); } to { transform: translateX(100vw); } }

.glass-panel { background: var(--glass); backdrop-filter: blur(35px); -webkit-backdrop-filter: blur(35px); border: 1px solid var(--glass-border); transition: all 0.5s; position: relative; z-index: 10; }

.chip-group { display: flex; flex-wrap: wrap; gap: 8px; width: 100%; align-items: center; padding-bottom: 4px; }
.chip-btn { flex-shrink: 0; padding: 12px 20px; border-radius: 16px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); color: #8a8a9a; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.1em; transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1); cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 6px; }
.chip-btn:hover { background: rgba(255,255,255,0.1); color: var(--text-main); transform: translateY(-1px); }
.chip-btn.active-chip { background: linear-gradient(135deg, var(--accent-glow), var(--accent-solid)) !important; color: #000 !important; border-color: transparent !important; box-shadow: 0 4px 15px var(--accent-shadow) !important; transform: translateY(-2px) !important; }

nav { transition: opacity 0.5s, transform 0.5s; z-index: 100 !important; }
.nav-glass { background: rgba(4, 3, 8, 0.2); backdrop-filter: blur(40px) saturate(180%); border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
.nav-wrapper { position: relative; display: flex; align-items: center; gap: 8px; overflow-x: auto; padding: 4px 0; scrollbar-width: none; }
.nav-btn { flex-shrink: 0; padding: 14px 28px; font-size: 15px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #8a8a9a; border-radius: var(--squircle-radius); cursor: pointer; transition: all 0.4s ease; z-index: 2; min-height: 56px; display: flex; align-items: center; justify-content: center; background: transparent; border: none; font-family: 'Inter', sans-serif; }
.nav-btn.active-tab { color: #000 !important; background: linear-gradient(135deg, var(--accent-glow), var(--accent-solid)); box-shadow: 0 0 40px var(--accent-shadow); transform: scale(1.02); }

.nav-inner { position: relative; display: flex; align-items: center; gap: 4px; flex-wrap: nowrap; white-space: nowrap; }

#mobile-menu-btn.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); width: 26px; }
#mobile-menu-btn.open span:nth-child(2) { opacity: 0; transform: translateX(-8px); }
#mobile-menu-btn.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); width: 26px; }
#mobile-menu.open { opacity: 1; pointer-events: auto; transform: translateY(0); }
.mobile-nav-btn { border: 1px solid transparent; background: transparent; }
.mobile-nav-btn.active .active-indicator { opacity: 1; transform: scale(1); }
.mobile-nav-btn:not(.active) .active-indicator { opacity: 0; transform: scale(0.5); }

.view-transition { transition: filter 0.7s cubic-bezier(0.23, 1, 0.32, 1), transform 0.7s cubic-bezier(0.23, 1, 0.32, 1), opacity 0.6s ease; }
.blur-motion { filter: blur(25px); transform: translateY(60px) scale(0.98); opacity: 0; pointer-events: none; }
.app-view { transition: opacity 0.5s ease, transform 0.5s; }
.app-view.hidden { display: none; opacity: 0; transform: translateY(16px); }
.app-view:not(.hidden) { display: block; opacity: 1; transform: translateY(0); }

.flip-card { width: 90px; height: 130px; background: #0d0c18; border-radius: 18px; font-size: 5.5rem; line-height: 130px; text-align: center; box-shadow: 0 25px 50px rgba(0,0,0,1); border: 1px solid rgba(255,255,255,0.08); color: var(--accent-glow); transition: all 0.2s ease; font-family: 'JetBrains Mono', monospace; }
.timer-pulse { animation: pulse 1s infinite; }
@keyframes pulse { 0% { transform: scale(1); color: var(--accent-glow); } 50% { transform: scale(1.05); color: #ff3333; } 100% { transform: scale(1); color: var(--accent-glow); } }

.level-badge { background: linear-gradient(135deg, #f7971e, #ffd200); color: #000; font-weight: 900; padding: 2px 14px; border-radius: 40px; font-size: 14px; box-shadow: 0 0 30px rgba(255, 215, 0, 0.3); }

.heatmap-container { display: grid; grid-template-rows: repeat(7, 1fr); grid-auto-flow: column; gap: 4px; overflow-x: auto; padding-bottom: 10px; }
.heatmap-cell { width: 12px; height: 12px; border-radius: 3px; background: rgba(255,255,255,0.05); transition: transform 0.2s; }
.heatmap-cell:hover { transform: scale(1.2); border: 1px solid var(--text-main); }

.mode-toggle { display: inline-flex; background: rgba(255, 255, 255, 0.05); padding: 4px; border-radius: var(--squircle-radius); gap: 4px; }
.mode-toggle button { border-radius: calc(var(--squircle-radius) - 4px); font-weight: 700; text-transform: uppercase; transition: all 0.3s ease; }
.mode-toggle button.active-mode { background: linear-gradient(135deg, var(--accent-glow), var(--accent-solid)); color: #000; box-shadow: 0 0 30px var(--accent-shadow); }

.xp-toast { position: fixed; top: 100px; left: 50%; transform: translateX(-50%) translateY(-20px); background: rgba(0,0,0,0.85); backdrop-filter: blur(12px); border: 1px solid rgba(255,215,0,0.2); padding: 12px 28px; border-radius: 60px; color: #ffd700; font-weight: 700; font-size: 16px; z-index: 9999; pointer-events: none; transition: all 0.5s ease; opacity: 0; box-shadow: 0 10px 40px rgba(0,0,0,0.8); }
.xp-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.8); backdrop-filter: blur(5px); z-index: 1000; display: none; align-items: center; justify-content: center; }
.modal-overlay.active { display: flex; }

@media (max-width: 768px) {
    .flip-card { width: 60px; height: 88px; font-size: 3.4rem; line-height: 88px; }
    #app-viewport { padding-top: 8rem !important; padding-bottom: 4rem !important; padding-left: 1rem !important; padding-right: 1rem !important; }
    .glass-panel { padding: 1.5rem !important; border-radius: 1.5rem !important; }
    .text-6xl, .text-7xl { font-size: 3.5rem !important; line-height: 1 !important; }
}

/* ─── ORBIT AI BLACKHOLE & STYLES ─── */
.orbit-blackhole {
    border-radius: 50%; background: #000;
    box-shadow: 0 0 10px var(--accent-glow), 0 0 20px var(--accent-solid), inset 0 0 5px rgba(255,255,255,0.5);
    position: relative; animation: pulseHole 2s ease-in-out infinite alternate;
}
.orbit-blackhole::before {
    content: ''; position: absolute; inset: -4px; border-radius: 50%;
    border: 2px dashed var(--accent-glow); animation: spinHole 3s linear infinite;
}
.orbit-blackhole::after {
    content: ''; position: absolute; inset: -8px; border-radius: 50%;
    border: 1px dotted var(--accent-solid); animation: spinHoleReverse 5s linear infinite; opacity: 0.7;
}
.fab-blackhole { width: 22px; height: 22px; margin-left: 1px; margin-top: 1px;}
@keyframes spinHole { 100% { transform: rotate(360deg); } }
@keyframes spinHoleReverse { 100% { transform: rotate(-360deg); } }
@keyframes pulseHole { 100% { box-shadow: 0 0 15px var(--accent-glow), 0 0 30px var(--accent-solid), inset 0 0 8px rgba(255,255,255,0.8); } }

#orbit-ai-fab { position: fixed; bottom: 24px; right: 24px; z-index: 9999; width: 56px; height: 56px; background: #000; border: 1px solid var(--accent-solid); border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: transform 0.3s; outline: none; box-shadow: 0 0 20px var(--accent-shadow); }
#orbit-ai-fab:hover { transform: scale(1.1); box-shadow: 0 0 30px var(--accent-shadow); }
#orbit-ai-panel { position: fixed; bottom: 90px; right: 24px; z-index: 9998; width: 350px; max-width: calc(100vw - 48px); height: 480px; max-height: calc(100vh - 120px); background: rgba(10, 8, 15, 0.95); backdrop-filter: blur(20px); border: 1px solid var(--accent-solid); border-radius: 24px; display: flex; flex-direction: column; overflow: hidden; transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1); opacity: 0; pointer-events: none; transform: translateY(20px); box-shadow: 0 20px 50px rgba(0,0,0,0.8); }
#orbit-ai-panel.open { opacity: 1; pointer-events: auto; transform: translateY(0); }
.ai-msg-box { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px; scrollbar-width: none; }
.ai-msg-box::-webkit-scrollbar { display: none; }
.ai-bubble { padding: 10px 14px; font-size: 13px; line-height: 1.5; max-width: 85%; word-wrap: break-word; }
.ai-bubble.bot { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); color: var(--text-main); border-radius: 16px; border-top-left-radius: 4px; align-self: flex-start; }
.ai-bubble.user { background: rgba(255, 107, 61, 0.2); border: 1px solid rgba(255, 107, 61, 0.3); color: #fff; border-radius: 16px; border-top-right-radius: 4px; align-self: flex-end; }
.ai-bubble strong { color: var(--accent-glow); }

/* ─── PURE METEOR SCROLLBAR FIX ─── */
html { scrollbar-width: thin; scrollbar-color: var(--accent-solid) transparent; scroll-behavior: smooth; }
::-webkit-scrollbar { width: 6px; background: transparent; }
::-webkit-scrollbar-track { background: transparent !important; border: none; } 
::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, transparent 0%, var(--accent-glow) 50%, var(--accent-solid) 100%);
    border-radius: 10px; border: none;
}
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, transparent 0%, var(--accent-solid) 50%, var(--accent-solid) 100%);
}

.glass-panel::-webkit-scrollbar { width: 6px; }
.glass-panel::-webkit-scrollbar-track { background: rgba(0,0,0,0.3) !important; border-radius: 10px; }
.glass-panel::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2) !important; border-radius: 10px; }

/* ─── NEW LOGIN SCREEN ANIMATIONS ─── */
.orbit-logo-box { position: relative; display: inline-flex; align-items: center; justify-content: center; width: 220px; height: 120px; margin: 0 auto; }
@media (min-width: 640px) { .orbit-logo-box { width: 300px; height: 160px; } }

/* 3D Orbit Rings Fixed - Slowed Down */
.orbit-ring-3d {
    position: absolute; top: 50%; left: 50%; 
    width: 240px; height: 240px; 
    border-radius: 50%; border: 2px solid transparent; 
    transform-style: preserve-3d; pointer-events: none;
}
@media (min-width: 640px) { .orbit-ring-3d { width: 340px; height: 340px; } }

.orbit-ring-1 { animation: spinRing1 12s linear infinite, ringColorShift 10s linear infinite; }
.orbit-ring-2 { animation: spinRing2 15s linear infinite, ringColorShift 10s linear infinite; }

@keyframes spinRing1 {
    0% { transform: translate(-50%, -50%) rotateX(75deg) rotateY(-15deg) rotateZ(0deg); }
    100% { transform: translate(-50%, -50%) rotateX(75deg) rotateY(-15deg) rotateZ(360deg); }
}
@keyframes spinRing2 {
    0% { transform: translate(-50%, -50%) rotateX(70deg) rotateY(25deg) rotateZ(0deg); }
    100% { transform: translate(-50%, -50%) rotateX(70deg) rotateY(25deg) rotateZ(-360deg); }
}

@keyframes ringColorShift {
    0%, 100% { border-color: #ff6b3d; }
    25% { border-color: #f000ff; }
    50% { border-color: #0088ff; }
    75% { border-color: #88ff00; }
}

.orbit-satellite {
    position: absolute; width: 8px; height: 8px; background: #fff; border-radius: 50%; left: calc(50% - 4px);
}
.sat-primary { animation: satColorShift 10s linear infinite; }
.sat-glow { animation: satColorShift 10s linear infinite; }
.pos-top { top: -4px; }
.pos-bottom { bottom: -4px; }

@keyframes satColorShift {
    0%, 100% { box-shadow: 0 0 20px 4px #ff6b3d; }
    25% { box-shadow: 0 0 20px 4px #f000ff; }
    50% { box-shadow: 0 0 20px 4px #0088ff; }
    75% { box-shadow: 0 0 20px 4px #88ff00; }
}

.roll-container-words { display: block; overflow: hidden; height: 1.2em; text-align: center; }
.roll-track-words { display: flex; flex-direction: column; animation: rollWords 10s cubic-bezier(0.75, 0, 0.25, 1) infinite; }
.roll-track-words span { height: 1.2em; line-height: 1.2em; display: flex; align-items: center; justify-content: center; }
@keyframes rollWords {
    0%, 15% { transform: translateY(0); }
    20%, 35% { transform: translateY(-16.666%); }
    40%, 55% { transform: translateY(-33.333%); }
    60%, 75% { transform: translateY(-50%); }
    80%, 95% { transform: translateY(-66.666%); }
    100% { transform: translateY(-83.333%); }
}

/* Floating Study Background Animation */
.floating-math {
    position: absolute;
    bottom: -20%;
    color: var(--accent-solid);
    font-family: 'JetBrains Mono', monospace;
    opacity: 0;
    animation: floatUp linear infinite;
    white-space: nowrap;
    text-shadow: 0 0 10px var(--accent-glow);
}
@keyframes floatUp {
    0% { transform: translateY(0) rotate(-10deg) scale(0.8); opacity: 0; }
    10% { opacity: 0.3; }
    50% { opacity: 0.5; }
    90% { opacity: 0.3; }
    100% { transform: translateY(-130vh) rotate(15deg) scale(1.2); opacity: 0; }
}

@keyframes loadingDots { 
    0% { content: ''; } 
    25% { content: '.'; } 
    50% { content: '..'; } 
    75% { content: '...'; } 
    100% { content: ''; } 
}
.loading-dots::after { 
    content: ''; 
    animation: loadingDots 1.5s infinite steps(1); 
    display: inline-block; 
    width: 1.5em; 
    text-align: left; 
}

/* ─── SCROLL REVEAL ANIMATIONS ─── */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1), transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}
.reveal-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}