:root {
    --primary-color: #ffffff;
    --secondary-color: #E5E7EB;
    --third-color: #000000;
    --text-color: #111827;
    --accent-color: #1e40af;
    --bg-color: #e6edf5;
}

[data-theme="dark"] {
    --primary-color: #1a1d2e;
    --secondary-color: #2d3148;
    --third-color: #ffffff;
    --text-color: #e5e7eb;
    --accent-color: #3b82f6;
    --bg-color: #0f111a;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

/* ─── Skeleton loading (shared) ─── */
@keyframes skeleton-shimmer {
    0%   { background-position: -400px 0; }
    100% { background-position:  400px 0; }
}
.skeleton-block {
    border-radius: 6px;
    background: linear-gradient(90deg, var(--secondary-color) 25%, var(--bg-color) 50%, var(--secondary-color) 75%);
    background-size: 800px 100%;
    animation: skeleton-shimmer 1.4s infinite linear;
}

body {
    font-family: Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
}
/*
1a2433 für dunklen, aber nicht ganz schwarz
f3f4f6 als extrem helles grau
e6edf5 als extrem helles blau (eher cremiger)
0b1220 als dunkle Version
eef4ff als sehr helles blau 
*/
header {
    background-color: var(--primary-color);
    border-bottom: 2px solid var(--secondary-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-color);
    line-height: 1.2;
}

nav > a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 1.5rem;
    font-weight: bold;
    transition: color 0.3s;
}

nav > a:hover {
    color: var(--accent-color);
}

.nav-hamburger-placeholder {
    width: 40px;
    flex-shrink: 0;
    visibility: hidden;
    pointer-events: none;
}

.hamburger {
    position: fixed;
    top: 1.9rem;
    right: 2rem;
    z-index: 100000;
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 30px;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s;
}

.hamburger:hover span {
    background-color: var(--accent-color);
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background-color: var(--primary-color);
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    transition: right 0.3s ease;
    padding: 5rem 2rem;
    z-index: 99999;
    will-change: right;
}

.sidebar.active {
    right: 0;
}

.sidebar a {
    display: block;
    padding: 1rem 0;
    text-decoration: none;
    color: var(--text-color);
    font-size: 1.2rem;
    border-bottom: 1px solid var(--secondary-color);
    transition: color 0.3s;
}

.sidebar a:hover {
    color: var(--accent-color);
}

.sidebar .sidebar-nav-link {
    display: none;
}

/* ─── Category Badge ─── */
.category-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: bold;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    margin-bottom: 0.4rem;
    background: #f3f4f6;
    color: #6b7280;
}
.category-badge.category-strength  { background: #dc2626; color: #fff; }
.category-badge.category-endurance { background: #0284c7; color: #fff; }
.category-badge.category-speed     { background: #d97706; color: #fff; }
.category-badge.category-learning  { background: #7c3aed; color: #fff; }
.category-badge.category-recovery  { background: #16a34a; color: #fff; }
.category-badge.category-other     { background: #6b7280; color: #fff; }

/* ─── Completion Animation ─── */
@keyframes completion-flash-anim {
    0%   { opacity: 0.7; }
    100% { opacity: 0; }
}

@keyframes particle-burst {
    0%   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    100% { opacity: 0; transform: translate(calc(-50% + var(--tx)), calc(-50% + var(--ty))) scale(0.2); }
}

@keyframes levelup-pop {
    0%   { opacity: 0; transform: scale(0.5) translateY(30px); }
    60%  { opacity: 1; transform: scale(1.08) translateY(-6px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes levelup-hide {
    0%   { opacity: 1; transform: scale(1); }
    100% { opacity: 0; transform: scale(1.1); }
}

@keyframes levelup-shine {
    0%   { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.completion-flash {
    position: fixed;
    inset: 0;
    background: rgba(34, 197, 94, 0.25);
    pointer-events: none;
    z-index: 99990;
    animation: completion-flash-anim 0.7s ease-out forwards;
}

.completion-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    z-index: 99992;
    gap: 0.9rem;
    background: radial-gradient(ellipse at center, rgba(0,0,0,0.5) 0%, transparent 72%);
}

.completion-checkmark {
    font-size: 8rem;
    color: #22c55e;
    font-weight: bold;
    opacity: 0;
    transform: scale(0.2);
    transition: opacity 0.35s ease, transform 0.45s cubic-bezier(0.175, 0.885, 0.32, 1.4);
    filter: drop-shadow(0 0 40px rgba(34, 197, 94, 0.9));
    line-height: 1;
}

.completion-overlay.active .completion-checkmark {
    opacity: 1;
    transform: scale(1);
}

.completion-overlay.hiding .completion-checkmark {
    opacity: 0;
    transform: scale(1.6);
    transition: opacity 0.45s ease, transform 0.45s ease;
}

.completion-label {
    font-size: 1.6rem;
    font-weight: 700;
    color: #fbbf24;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease 0.15s, transform 0.3s ease 0.15s;
    text-shadow: 0 2px 12px rgba(251,191,36,0.5);
}

.completion-overlay.active .completion-label {
    opacity: 1;
    transform: translateY(0);
}

.completion-overlay.hiding .completion-label {
    opacity: 0;
    transition: opacity 0.4s ease;
}

.completion-pts {
    font-size: 2.8rem;
    font-weight: bold;
    color: #4ade80;
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.3s ease 0.2s, transform 0.3s ease 0.2s;
    text-shadow: 0 2px 16px rgba(74,222,128,0.5);
}

.completion-overlay.active .completion-pts {
    opacity: 1;
    transform: translateY(0);
}

.completion-overlay.hiding .completion-pts {
    opacity: 0;
    transition: opacity 0.4s ease;
}


.completion-xp-detail {
    font-size: 1.5rem;
    font-weight: 700;
    color: #f59e0b;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease 0.32s, transform 0.3s ease 0.32s;
    letter-spacing: 0.02em;
    text-shadow: 0 2px 10px rgba(245,158,11,0.5);
}

.completion-overlay.active .completion-xp-detail {
    opacity: 1;
    transform: translateY(0);
}

.completion-overlay.hiding .completion-xp-detail {
    opacity: 0;
    transition: opacity 0.4s ease;
}

/* Mini XP progress bar inside completion overlay */
.completion-xp-bar-wrap {
    width: min(280px, 85vw);
    opacity: 0;
    transition: opacity 0.3s ease 0.55s;
}

.completion-overlay.active .completion-xp-bar-wrap {
    opacity: 1;
}

.completion-overlay.hiding .completion-xp-bar-wrap {
    opacity: 0;
    transition: opacity 0.4s ease;
}

.completion-xp-bar-track {
    height: 9px;
    background: rgba(0,0,0,0.1);
    border-radius: 999px;
    overflow: hidden;
    border: 1px solid rgba(37,99,235,0.2);
}

.completion-xp-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #3b82f6, #60a5fa);
    border-radius: 999px;
    width: var(--from);
    transition: none;
}

.completion-xp-bar-fill.animated {
    width: var(--to);
    transition: width 1s ease 0.1s;
}

.completion-xp-bar-label {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    font-size: 0.75rem;
    color: #3b82f6;
    margin-top: 0.3rem;
    font-weight: 600;
    gap: 0.15rem 0.5rem;
}

/* Level-up overlay */
.levelup-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    z-index: 99995;
    background: rgba(0,0,0,0.55);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.levelup-overlay.active {
    opacity: 1;
}

.levelup-overlay.hiding {
    animation: levelup-hide 0.6s ease forwards;
}

.levelup-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    animation: levelup-pop 0.55s cubic-bezier(0.175, 0.885, 0.32, 1.4) forwards;
}

.levelup-icon {
    font-size: 4rem;
    filter: drop-shadow(0 0 20px rgba(250,204,21,0.8));
    animation: levelup-pop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.4) 0.1s both;
}

.levelup-title {
    font-size: 3rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    background: linear-gradient(90deg, #facc15, #fbbf24, #f59e0b, #facc15);
    background-size: 300% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: levelup-shine 1.8s linear infinite;
    text-shadow: none;
    filter: drop-shadow(0 4px 16px rgba(250,204,21,0.5));
}

.levelup-names {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.4rem;
    font-weight: bold;
    color: white;
}

.levelup-from {
    opacity: 0.6;
    text-decoration: line-through;
}

.levelup-arrow {
    color: #facc15;
    font-size: 1.6rem;
}

.levelup-to {
    color: #4ade80;
    font-size: 1.7rem;
    text-shadow: 0 0 20px rgba(74,222,128,0.6);
}

.completion-particle {
    position: fixed;
    pointer-events: none;
    z-index: 99991;
    animation: particle-burst 0.75s ease-out forwards;
}

/* ── Level-up tier scaling ── */

/* Tier 2 (Levels 4–6) */
.levelup-overlay[data-tier="2"] { background: rgba(0,0,0,0.65); }
.levelup-overlay[data-tier="2"] .levelup-content {
    background: rgba(0,0,0,0.45);
    border: 1px solid rgba(250,204,21,0.55);
    border-radius: 1.5rem;
    padding: 2.5rem 3.5rem;
    box-shadow: 0 0 60px rgba(250,204,21,0.2);
}
.levelup-overlay[data-tier="2"] .levelup-icon  { font-size: 5.5rem; }
.levelup-overlay[data-tier="2"] .levelup-title { font-size: 4rem; }
.levelup-overlay[data-tier="2"] .levelup-names { font-size: 1.7rem; }
.levelup-overlay[data-tier="2"] .levelup-to    { font-size: 2.2rem; }

/* Tier 3 (Levels 7–9) */
.levelup-overlay[data-tier="3"] { background: rgba(0,0,0,0.78); }
.levelup-overlay[data-tier="3"] .levelup-content {
    background: rgba(0,0,0,0.55);
    border: 2px solid rgba(250,204,21,0.7);
    border-radius: 2rem;
    padding: 3.5rem 5rem;
    box-shadow: 0 0 90px rgba(250,204,21,0.35), 0 0 180px rgba(250,204,21,0.1);
}
.levelup-overlay[data-tier="3"] .levelup-icon  { font-size: 7.5rem; }
.levelup-overlay[data-tier="3"] .levelup-title { font-size: 5.5rem; }
.levelup-overlay[data-tier="3"] .levelup-names { font-size: 2rem; }
.levelup-overlay[data-tier="3"] .levelup-to    { font-size: 2.8rem; text-shadow: 0 0 40px rgba(74,222,128,0.85); }

/* Tier 4 (Level 10 — Legend) */
@keyframes levelup-border-pulse {
    0%,100% { box-shadow: 0 0 70px rgba(250,204,21,0.55), 0 0 140px rgba(250,204,21,0.15); border-color: rgba(250,204,21,0.85); }
    33%     { box-shadow: 0 0 90px rgba(250,80,40,0.6),   0 0 180px rgba(250,80,40,0.15);  border-color: rgba(250,130,50,0.9); }
    66%     { box-shadow: 0 0 90px rgba(80,190,255,0.55), 0 0 180px rgba(80,190,255,0.15); border-color: rgba(80,190,255,0.85); }
}

.levelup-overlay[data-tier="4"] { background: rgba(0,0,0,0.88); }
.levelup-overlay[data-tier="4"] .levelup-content {
    background: rgba(5,0,20,0.7);
    border: 3px solid rgba(250,204,21,0.85);
    border-radius: 2.5rem;
    padding: 3.5rem 5rem;
    animation: levelup-pop 0.55s cubic-bezier(0.175, 0.885, 0.32, 1.4) forwards,
               levelup-border-pulse 3s ease 0.6s infinite;
}
.levelup-overlay[data-tier="4"] .levelup-icon  { font-size: 7.5rem; }
.levelup-overlay[data-tier="4"] .levelup-title { font-size: 5.5rem; }
.levelup-overlay[data-tier="4"] .levelup-names { font-size: 2rem; }
.levelup-overlay[data-tier="4"] .levelup-to    {
    font-size: 3rem;
    text-shadow: 0 0 40px rgba(74,222,128,1), 0 0 80px rgba(74,222,128,0.5);
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
    header {
        padding: 0.75rem 1rem;
    }

    .hamburger {
        top: 1.6rem;
        right: 1rem;
    }

    nav > a {
        display: none;
    }

    .sidebar {
        width: min(300px, 88vw);
        right: min(-300px, -88vw);
    }

    .sidebar.active {
        right: 0;
    }

    .sidebar .sidebar-nav-link {
        display: block;
        font-weight: bold;
    }

    .sidebar .sidebar-nav-link:last-of-type {
        border-bottom: 2px solid var(--secondary-color);
        margin-bottom: 0.5rem;
        padding-bottom: 1.5rem;
    }
}

/* ── Code of Honor modal ─────────────────────────────────────────── */
.coh-modal {
    text-align: center;
    max-width: 380px;
    padding: 2.5rem 2rem 2rem;
}

.coh-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    margin-bottom: 1.6rem;
    color: var(--text-color);
}

.coh-lines {
    margin-bottom: 2rem;
}

.coh-lines p {
    font-size: 1.05rem;
    line-height: 2;
    color: #374151;
    font-style: italic;
}

.coh-begin-btn {
    width: 100%;
    padding: 0.85rem;
    font-size: 1rem;
    font-weight: 600;
    background: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.coh-begin-btn:hover {
    background: #1e3a8a;
}

/* ─── Dark Mode overrides ─── */
[data-theme="dark"] .category-badge {
    background: #374151;
    color: #d1d5db;
}
[data-theme="dark"] .category-badge.category-strength  { background: #dc2626; color: #fff; }
[data-theme="dark"] .category-badge.category-endurance { background: #0284c7; color: #fff; }
[data-theme="dark"] .category-badge.category-speed     { background: #d97706; color: #fff; }
[data-theme="dark"] .category-badge.category-learning  { background: #7c3aed; color: #fff; }
[data-theme="dark"] .category-badge.category-recovery  { background: #16a34a; color: #fff; }
[data-theme="dark"] .category-badge.category-other     { background: #6b7280; color: #fff; }

[data-theme="dark"] .coh-lines p {
    color: #9ca3af;
}

[data-theme="dark"] .coh-begin-btn:hover {
    background: #2563eb;
}

[data-theme="dark"] .levelup-icon {
    filter: saturate(1.4) brightness(1.2) drop-shadow(0 0 20px rgba(250,204,21,0.9));
}

/* ─── App Footer ─── */
.app-footer {
    background: var(--primary-color);
    border-top: 1px solid var(--secondary-color);
    padding: 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    margin-top: 3rem;
}

.app-footer-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.app-footer-links a {
    text-decoration: none;
    color: var(--text-color);
    opacity: 0.55;
    font-size: 0.85rem;
    transition: opacity 0.2s;
}

.app-footer-links a:hover {
    opacity: 1;
}

.app-footer-copy {
    font-size: 0.75rem;
    color: var(--text-color);
    opacity: 0.4;
}

/* ─── Cookie Banner ─── */
#cookie-banner {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: min(480px, calc(100vw - 2rem));
    background: var(--primary-color);
    border: 1px solid var(--secondary-color);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    z-index: 9999;
    color: var(--text-color);
}
#cookie-banner-inner {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
#cookie-banner-top {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
#cookie-banner-icon {
    font-size: 1.5rem;
    line-height: 1;
}
#cookie-banner-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-color);
}
#cookie-banner-text {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.75;
    line-height: 1.6;
    margin: 0;
}
#cookie-banner-text a {
    color: var(--accent-color);
    text-decoration: underline;
}
#cookie-banner-btn {
    background: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 10px;
    padding: 0.7rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    width: 100%;
    margin-top: 0.25rem;
}