/* ===== HABITOLYZER — Dark Mode Design ===== */

:root {
    --bg-primary: #0f0f14;
    --bg-secondary: #1a1a24;
    --bg-card: #1e1e2e;
    --bg-card-hover: #252538;
    --text-primary: #e8e8f0;
    --text-secondary: #8888a0;
    --text-muted: #555570;
    --accent-green: #00d68f;
    --accent-green-dim: rgba(0, 214, 143, 0.15);
    --accent-red: #ff4d6a;
    --accent-red-dim: rgba(255, 77, 106, 0.15);
    --accent-gold: #ffd700;
    --accent-gold-dim: rgba(255, 215, 0, 0.15);
    --accent-blue: #4d8bff;
    --glass-bg: rgba(30, 30, 46, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
}

/* ===== NAVBAR ===== */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
}

.nav-logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--accent-green);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.nav-links a:hover { color: var(--text-primary); }
.nav-logout { color: var(--accent-red) !important; }

/* ===== CONTAINER ===== */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* ===== FLASH MESSAGES ===== */
.flash-messages { margin-bottom: 1.5rem; }

.flash {
    padding: 0.8rem 1.2rem;
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    animation: slideDown 0.3s ease;
}

.flash-error { background: var(--accent-red-dim); color: var(--accent-red); }
.flash-success { background: var(--accent-green-dim); color: var(--accent-green); }
.flash-info { background: rgba(77, 139, 255, 0.15); color: var(--accent-blue); }

/* ===== AUTH ===== */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 3rem 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow);
}

.auth-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-green);
    text-align: center;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.auth-switch {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.auth-switch a { color: var(--accent-green); text-decoration: none; }

/* ===== FORMS ===== */
.form-group { margin-bottom: 1rem; }

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--accent-green);
}

/* ===== BUTTONS ===== */
.btn {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: var(--accent-green);
    color: var(--bg-primary);
}

.btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); }

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-danger {
    background: var(--accent-red-dim);
    color: var(--accent-red);
}

.btn-full { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ===== AVATAR CHOICE ===== */
.avatar-choice {
    display: flex;
    gap: 1rem;
}

.avatar-option {
    flex: 1;
    cursor: pointer;
}

.avatar-option input { display: none; }

.avatar-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.2rem;
    background: var(--bg-primary);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.avatar-option input:checked + .avatar-preview {
    border-color: var(--accent-green);
    background: var(--accent-green-dim);
    color: var(--text-primary);
}

.avatar-icon { font-size: 2rem; }

/* ===== CATEGORY CHECKBOXES ===== */
.category-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.category-checkbox {
    cursor: pointer;
}

.category-checkbox input { display: none; }

.category-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.2rem;
    background: var(--bg-primary);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.category-checkbox input:checked + .category-label {
    border-color: var(--accent-green);
    background: var(--accent-green-dim);
    color: var(--text-primary);
}

.category-icon { font-size: 1.2rem; }

.form-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.8rem;
}

/* ===== OVERLAY (Check-In) ===== */
.overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.4s ease;
    padding: 1rem;
}

.overlay-content {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 2rem;
    width: 100%;
    max-width: 550px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow);
}

.overlay-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.3rem;
}

.overlay-header h2 {
    font-size: 1.5rem;
    color: var(--accent-green);
}

.overlay-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 0.3rem;
    transition: color 0.2s;
}

.overlay-close:hover { color: var(--text-primary); }

.overlay-content h2 {
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
    color: var(--accent-green);
}

.overlay-subtitle {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.overlay-closing { animation: fadeOut 0.5s ease forwards; }

.checkin-day {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.checkin-day h3 {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.checkin-cat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.checkin-cat-name {
    font-size: 1rem;
    min-width: 100px;
}

.checkin-buttons {
    display: flex;
    gap: 0.5rem;
}

.btn-check {
    padding: 0.5rem 1rem;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.btn-clean.active {
    background: var(--accent-green-dim);
    color: var(--accent-green);
    border-color: var(--accent-green);
}

.btn-used.active {
    background: var(--accent-red-dim);
    color: var(--accent-red);
    border-color: var(--accent-red);
}

/* ===== DASHBOARD ===== */
.welcome-section {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--bg-card);
    border: 3px solid var(--glass-border);
}

.avatar-legendary { border-color: var(--accent-gold); box-shadow: 0 0 20px var(--accent-gold-dim); }
.avatar-strong { border-color: var(--accent-green); box-shadow: 0 0 15px var(--accent-green-dim); }
.avatar-sweating { border-color: var(--accent-blue); }
.avatar-angry { border-color: var(--accent-red); }

.avatar-emoji { font-size: 2.5rem; }

.avatar-badge {
    position: absolute;
    bottom: -8px;
    background: var(--accent-gold);
    color: var(--bg-primary);
    font-size: 0.6rem;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 10px;
}

.welcome-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.welcome-text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== DAILY WISDOM ===== */
.wisdom-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-left: 3px solid var(--accent-green);
    border-radius: var(--radius-sm);
    padding: 1.2rem 1.5rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.3s;
}

.wisdom-text {
    font-size: 1rem;
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 0.4rem;
    position: relative;
    z-index: 1;
}

.wisdom-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

.wisdom-source {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.wisdom-votes {
    display: flex;
    gap: 0.4rem;
}

.vote-btn {
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 0.3rem 0.7rem;
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.vote-btn:hover { border-color: var(--text-secondary); }

.vote-up.vote-active {
    background: var(--accent-green-dim);
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.vote-down.vote-active {
    background: var(--accent-red-dim);
    border-color: var(--accent-red);
    color: var(--accent-red);
}

/* Partikel-Container */
.wisdom-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 2;
    overflow: hidden;
}

.wisdom-particle {
    position: absolute;
    bottom: 0;
    font-size: 1.2rem;
    animation: particleRise 2s ease-out forwards;
    pointer-events: none;
}

/* Shake-Effekt bei Downvote */
.wisdom-shake {
    animation: cardShake 0.5s ease;
    border-left-color: var(--accent-red) !important;
}

/* ===== STREAK CARDS ===== */
.streak-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.2rem;
}

.streak-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: transform 0.2s, box-shadow 0.2s;
}

.streak-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.streak-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1rem;
}

.streak-icon { font-size: 1.5rem; }
.streak-name { font-weight: 600; font-size: 1.1rem; }

/* Streak Pyramid */
.streak-pyramid {
    padding: 0.5rem 0;
}

.flame, .plant {
    font-size: 2rem;
    transition: all 0.3s;
    display: inline-block;
}

.flame-level-0 { font-size: 1.5rem; opacity: 0.3; filter: grayscale(1); }
.flame-level-1 { font-size: 2rem; }
.flame-level-2 { font-size: 2.5rem; }
.flame-level-3 { font-size: 3rem; animation: pulse 2s infinite; }
.flame-level-4 { font-size: 3.5rem; animation: pulse 1.5s infinite; }
.flame-level-5 { font-size: 4rem; animation: pulse 1s infinite, glow 2s infinite; }

.plant-level-0 { font-size: 1.5rem; }
.plant-level-1 { font-size: 2rem; }
.plant-level-2 { font-size: 2.5rem; }
.plant-level-3 { font-size: 3rem; animation: sway 3s infinite ease-in-out; }
.plant-level-4 { font-size: 3.5rem; animation: sway 3s infinite ease-in-out; }
.plant-level-5 { font-size: 4rem; animation: sway 3s infinite ease-in-out; }

.streak-top {
    text-align: center;
    padding-bottom: 0.6rem;
}

.streak-count {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent-green);
    line-height: 1;
    margin-top: 0.2rem;
}

.streak-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.1rem;
}

/* Widgets unter dem Streak */
.streak-widgets {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
    margin-top: 0.5rem;
}

.streak-widget {
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 0.7rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
}

.widget-icon {
    font-size: 1.3rem;
}

.widget-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.widget-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Widget Ring (30-Tage-Rate) */
.widget-ring {
    position: relative;
    width: 48px;
    height: 48px;
}

.widget-ring-svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.widget-ring-bg {
    fill: none;
    stroke: var(--bg-secondary);
    stroke-width: 3.5;
}

.widget-ring-fill {
    fill: none;
    stroke: var(--accent-green);
    stroke-width: 3.5;
    stroke-linecap: round;
    transition: stroke-dasharray 0.8s ease;
}

.widget-ring-text {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Stats für Activity-Cards (bleiben erhalten) */
.streak-stats {
    display: flex;
    justify-content: space-around;
    padding: 0.8rem 0;
    border-top: 1px solid var(--glass-border);
    margin-top: 0.8rem;
}

.stat { text-align: center; }

.stat-value {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== HEATMAP ===== */
.calendar-heatmap {
    margin-top: 1rem;
    padding-top: 0.8rem;
    border-top: 1px solid var(--glass-border);
}

.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(18, 1fr);
    gap: 2px;
}

.heatmap-cell {
    aspect-ratio: 1;
    border-radius: 3px;
    min-width: 0;
}

.heatmap-empty { background: var(--bg-primary); }
.heatmap-clean { background: var(--accent-green); }
.heatmap-used { background: var(--accent-red); }

/* ===== FRIENDS ===== */
.friends-container h2 {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.friend-code-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.friend-code-card-compact {
    margin-bottom: 1.5rem;
}

.friend-code-info h2 { margin-bottom: 0.3rem; }

.friend-code-display {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.friend-code-value {
    font-size: 1.8rem;
    font-weight: 800;
    font-family: 'Courier New', monospace;
    color: var(--accent-green);
    letter-spacing: 2px;
    background: var(--bg-primary);
    padding: 0.5rem 1.2rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.friend-add-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.friend-add-form {
    display: flex;
    gap: 0.8rem;
    margin-top: 0.8rem;
}

.friend-code-input {
    width: 140px;
    padding: 0.7rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1.1rem;
    font-family: 'Courier New', monospace;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.friend-code-input:focus {
    outline: none;
    border-color: var(--accent-green);
}

.friends-section { margin-top: 1.5rem; }

.friends-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.friend-entry {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.2rem;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
}

.friend-avatar {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 50%;
}

.friend-info { flex: 1; }
.friend-name { font-weight: 600; display: block; margin-bottom: 0.3rem; }

.friend-streaks {
    display: flex;
    gap: 0.5rem;
}

.friend-total { text-align: center; margin-right: 0.5rem; }

.friend-total-value {
    display: block;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--accent-green);
}

.friend-total-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* Einladungen */
.invites-section { margin-bottom: 1.5rem; }

.invites-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.invite-card {
    background: var(--accent-green-dim);
    border: 1px solid var(--accent-green);
    border-radius: var(--radius-sm);
    padding: 1rem 1.2rem;
}

.invite-info {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
}

.invite-icon { font-size: 1.3rem; }

.invite-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.invite-accept-form {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.invite-pw-input {
    width: 160px;
    padding: 0.4rem 0.8rem;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
}

.invite-pw-input:focus {
    outline: none;
    border-color: var(--accent-green);
}

/* Gruppen-Detail: Freunde einladen */
.invite-friends-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--glass-border);
}

.invite-friends-section h2 {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.invite-friends-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.invite-friend-entry {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.6rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
}

.invite-friend-name {
    font-weight: 600;
    font-size: 0.9rem;
}

/* ===== PROFILE PIC ===== */
.profile-pic-section {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.profile-pic-current {
    margin: 0.8rem 0;
    text-align: center;
}

.profile-pic-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--glass-border);
}

.profile-pic-placeholder {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 3px solid var(--glass-border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.profile-upload-form { margin-top: 1rem; }

.filter-option-form { flex: 1; }

.filter-btn {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: 0.8rem;
    background: var(--bg-primary);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover { border-color: var(--text-muted); }

.filter-active {
    border-color: var(--accent-green) !important;
    background: var(--accent-green-dim);
    color: var(--text-primary);
}

.profile-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    align-items: center;
}

.profile-reupload label {
    cursor: pointer;
}

.file-input {
    width: 100%;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.filter-choice {
    display: flex;
    gap: 0.6rem;
    margin-top: 0.5rem;
}

.filter-option { cursor: pointer; flex: 1; }
.filter-option input { display: none; }

.filter-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: 0.8rem;
    background: var(--bg-primary);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.filter-option input:checked + .filter-preview {
    border-color: var(--accent-green);
    background: var(--accent-green-dim);
    color: var(--text-primary);
}

.filter-icon { font-size: 1.5rem; }

/* Avatar mit Profilbild */
.avatar-pic-main {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.avatar-pic {
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--glass-border);
}

.avatar-pic-small { width: 40px; height: 40px; }
.avatar-pic-normal { width: 60px; height: 60px; }

/* ===== SETTINGS ===== */
.settings-container { max-width: 500px; }
.settings-container h1 { margin-bottom: 1.5rem; }
.settings-form { margin-top: 1rem; }

/* ===== GROUPS ===== */
.groups-container h1 { margin-bottom: 1.5rem; }

.groups-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.group-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.2s;
}

.group-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent-green);
}

.group-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.group-name { font-weight: 600; font-size: 1.1rem; }
.group-members { font-size: 0.85rem; color: var(--text-secondary); margin-top: 0.3rem; }

.empty-state {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem;
    font-size: 0.95rem;
}

.groups-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.2rem;
}

.action-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.action-card h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* ===== GROUP DETAIL ===== */
.group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.group-member-count {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.leaderboard h2 {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.leaderboard-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.leaderboard-entry {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.2rem;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.leader-gold { border-color: var(--accent-gold); background: rgba(255, 215, 0, 0.05); }
.leader-silver { border-color: #c0c0c0; }
.leader-bronze { border-color: #cd7f32; }

.leader-rank {
    font-size: 1.3rem;
    width: 35px;
    text-align: center;
    font-weight: 700;
    color: var(--text-muted);
}

.leader-avatar {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 50%;
}

.leader-info { flex: 1; }
.leader-name { font-weight: 600; display: block; margin-bottom: 0.3rem; }

.leader-streaks {
    display: flex;
    gap: 0.5rem;
}

.leader-streak-badge {
    font-size: 0.8rem;
    background: var(--bg-primary);
    padding: 2px 8px;
    border-radius: 12px;
    color: var(--text-secondary);
}

.leader-total {
    text-align: center;
}

.leader-total-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-green);
}

.leader-total-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.group-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--glass-border);
}

/* ===== SECTION HEADERS ===== */
.section-header {
    margin-bottom: 1rem;
    margin-top: 0.5rem;
}

.section-header-activity {
    margin-top: 2.5rem;
}

.section-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.section-title-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-title-row .section-title { margin-bottom: 0; }

.btn-checkin-open {
    background: none;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity 0.2s;
}

.btn-checkin-open:hover { opacity: 1; }

/* Training Fact */
.training-fact {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-left: 3px solid var(--accent-blue);
    border-radius: var(--radius-sm);
    padding: 0.8rem 1.2rem;
}

.training-fact-category {
    font-size: 0.7rem;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 0.3rem;
}

.training-fact-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ===== TRAINING PAGE ===== */
.training-page h1 { margin-bottom: 1.5rem; }

.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.2rem;
}

.tool-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: border-color 0.3s;
}

.tool-saved {
    border-color: var(--accent-green) !important;
}

.tool-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1rem;
}

.tool-name {
    font-weight: 700;
    font-size: 1.2rem;
}

/* Timer */
.tool-timer { text-align: center; }

.timer-display {
    font-size: 3rem;
    font-weight: 800;
    font-family: 'Courier New', monospace;
    color: var(--accent-blue);
    margin-bottom: 0.8rem;
    letter-spacing: 2px;
}

.timer-buttons {
    display: flex;
    gap: 0.4rem;
}

.btn-timer {
    flex: 1;
    padding: 0.7rem;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-timer-start { border-color: var(--accent-green); color: var(--accent-green); }
.btn-timer-start:hover { background: var(--accent-green); color: var(--bg-primary); }

.btn-timer-active {
    background: var(--accent-red) !important;
    color: var(--bg-primary) !important;
    border-color: var(--accent-red) !important;
    animation: timerPulse 1s infinite;
}

.btn-timer-reset:hover { border-color: var(--text-secondary); }

.btn-timer-save {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}
.btn-timer-save:hover { background: var(--accent-blue); color: var(--bg-primary); }

/* Counter */
.tool-counter { text-align: center; }

.counter-display {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
}

.counter-buttons {
    display: flex;
    gap: 0.3rem;
}

.btn-counter {
    flex: 1;
    padding: 0.6rem;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-counter:hover { border-color: var(--text-secondary); }
.btn-counter-plus { color: var(--accent-green); border-color: var(--accent-green); }
.btn-counter-plus:hover { background: var(--accent-green); color: var(--bg-primary); }
.btn-counter-big { font-size: 0.85rem; }

/* Tool Stats */
.tool-stats {
    display: flex;
    justify-content: space-around;
    margin-top: 1rem;
    padding-top: 0.8rem;
    border-top: 1px solid var(--glass-border);
}

.tool-stat { text-align: center; }

.tool-stat-value {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.tool-stat-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Mini Chart */
.tool-chart {
    display: flex;
    justify-content: space-around;
    align-items: flex-end;
    height: 60px;
    margin-top: 0.8rem;
    padding-top: 0.8rem;
    border-top: 1px solid var(--glass-border);
}

.tool-chart-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    height: 100%;
}

.tool-chart-bar-wrap {
    flex: 1;
    width: 100%;
    display: flex;
    align-items: flex-end;
    padding: 0 2px;
}

.tool-chart-bar {
    width: 100%;
    background: var(--accent-blue);
    border-radius: 3px 3px 0 0;
    min-height: 2px;
    transition: height 0.5s;
}

.tool-chart-val {
    font-size: 0.6rem;
    color: var(--text-secondary);
    font-weight: 600;
    min-height: 0.8rem;
}

.tool-chart-day {
    font-size: 0.6rem;
    color: var(--text-muted);
}

@keyframes timerPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ===== EXERCISE SVG ICONS ===== */
.exercise-icon {
    width: 50px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
}

.exercise-svg {
    width: 100%;
    height: 100%;
}

/* Liegestütz: auf/ab wippen */
.exercise-pushup {
    animation: pushupBob 2.5s ease-in-out infinite;
}

/* Plank: leichtes Zittern (Anstrengung) */
.exercise-plank {
    animation: plankShake 0.3s ease-in-out infinite;
}

/* Kniebeugen: hoch/runter */
.exercise-squat {
    animation: squatBob 2s ease-in-out infinite;
}

@keyframes pushupBob {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(2px) rotate(0.5deg); }
}

@keyframes plankShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(0.5px); }
    75% { transform: translateX(-0.5px); }
}

@keyframes squatBob {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(0.92); }
}

/* ===== ACTIVITY CARDS ===== */
.activity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.2rem;
}

.activity-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    backdrop-filter: blur(10px);
}

.activity-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1rem;
}

.activity-input-section {
    margin-bottom: 1rem;
}

.activity-quick-buttons {
    display: flex;
    gap: 0.4rem;
    margin-bottom: 0.5rem;
}

.btn-quick {
    flex: 1;
    padding: 0.6rem 0.3rem;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-quick:hover {
    background: var(--accent-blue);
    color: var(--bg-primary);
    border-color: var(--accent-blue);
}

.btn-quick:active {
    transform: scale(0.95);
}

.btn-quick.active {
    background: var(--accent-blue);
    color: var(--bg-primary);
    border-color: var(--accent-blue);
}

.activity-custom-input {
    display: flex;
    gap: 0.4rem;
}

.activity-custom-input input {
    flex: 1;
    padding: 0.5rem 0.8rem;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.activity-custom-input input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.activity-today {
    text-align: center;
    min-height: 1.5rem;
    margin-bottom: 0.5rem;
}

.activity-today-count {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.activity-flash {
    animation: activityFlash 0.5s ease;
}

/* Add activity card */
.activity-card-add {
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--glass-border);
    background: transparent;
}

.add-activity-form {
    text-align: center;
}

.add-activity-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.5rem;
}

.add-activity-form h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.add-activity-form input {
    width: 100%;
    padding: 0.6rem 0.8rem;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    text-align: center;
}

.add-activity-form input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

/* ===== SLEEP / WELLBEING ===== */
.sleep-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    backdrop-filter: blur(10px);
}

.sleep-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1rem;
}

.sleep-avg {
    margin-left: auto;
    font-size: 0.85rem;
    color: var(--accent-blue);
    font-weight: 600;
}

.sleep-chart {
    display: flex;
    justify-content: space-around;
    align-items: flex-end;
    gap: 0.4rem;
    height: 120px;
}

.sleep-bar-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    height: 100%;
}

.sleep-bar-wrap {
    flex: 1;
    width: 100%;
    display: flex;
    align-items: flex-end;
}

.sleep-bar {
    width: 100%;
    border-radius: 4px 4px 0 0;
    min-height: 4px;
    transition: height 0.5s ease;
}

.sleep-bar-good { background: var(--accent-green); }
.sleep-bar-ok { background: var(--accent-blue); }
.sleep-bar-bad { background: var(--accent-red); }

.sleep-bar-label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 0.2rem;
}

.sleep-bar-day {
    font-size: 0.65rem;
    color: var(--text-muted);
}

.sleep-bar-bed {
    font-size: 0.6rem;
    color: var(--text-muted);
}

/* Overlay Schlaf */
.checkin-sleep-item {
    padding: 0.5rem 0;
}

.sleep-bedtime, .sleep-hours {
    margin-bottom: 0.6rem;
}

.sleep-time-buttons, .sleep-hours-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-top: 0.3rem;
}

.sleep-time-btn.active, .sleep-hour-btn.active {
    background: var(--accent-blue) !important;
    color: var(--bg-primary) !important;
    border-color: var(--accent-blue) !important;
}

/* ===== MILESTONES (Segmentierter Balken) ===== */
.milestone-section {
    padding: 0.8rem 0;
    border-top: 1px solid var(--glass-border);
    margin-top: 0.5rem;
}

.seg-bar {
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.8rem 0.5rem;
    border: 1px solid var(--glass-border);
}

.seg-bar-done {
    border-color: var(--accent-gold);
    background: rgba(255, 215, 0, 0.05);
}

.seg-bar-title {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

.seg-bar-done .seg-bar-title {
    color: var(--accent-gold);
}

.seg-bar-track {
    position: relative;
    height: 14px;
    background: var(--bg-secondary);
    border-radius: 7px;
    margin-top: 1.2rem;
}

.seg-bar-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-green), #00f5a0);
    border-radius: 7px;
    transition: width 0.8s ease;
    overflow: visible;
}

.seg-bar-pin {
    position: absolute;
    right: -10px;
    top: -22px;
    width: 20px;
    height: 20px;
    background: var(--accent-green);
    color: var(--bg-primary);
    border-radius: 50%;
    font-size: 0.6rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.seg-bar-pin::after {
    content: '';
    position: absolute;
    bottom: -4px;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--accent-green);
}

.seg-bar-fill::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    width: 12px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4));
    border-radius: 0 7px 7px 0;
    animation: barPulse 2s ease-in-out infinite;
}

.seg-bar-fill-gold::after {
    display: none;
}

.seg-bar-fill-gold {
    background: linear-gradient(90deg, var(--accent-gold), #ffed4a);
    animation: milestoneGlow 2s ease infinite;
}

.seg-bar-marker {
    position: absolute;
    top: 0;
    width: 3px;
    height: 100%;
    background: rgba(255, 255, 255, 0.12);
    z-index: 1;
    border-radius: 1px;
}

.milestone-edit-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.8rem;
    opacity: 0.5;
    transition: opacity 0.2s;
}

.milestone-edit-btn:hover { opacity: 1; }

/* Streak unterbrochen */
.milestone-broken {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.8rem;
    background: var(--accent-red-dim);
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
}

.milestone-broken-icon { font-size: 1.1rem; }

.milestone-broken-text {
    font-size: 0.8rem;
    color: var(--accent-red);
}

/* Eigenes Ziel */
.custom-goal {
    margin-top: 0.5rem;
    padding: 0.5rem 0;
}

.custom-goal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.3rem;
}

.milestone-bar-small { height: 5px; }

.custom-goal-add {
    margin-top: 0.4rem;
}

.btn-add-goal {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.75rem;
    cursor: pointer;
    padding: 0.3rem 0;
    transition: color 0.2s;
}

.btn-add-goal:hover { color: var(--accent-green); }

.milestone-presets {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.milestone-presets .btn { flex: 1; min-width: 80px; }

.milestone-custom-input {
    width: 100%;
    padding: 0.7rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
}

.milestone-custom-input:focus {
    outline: none;
    border-color: var(--accent-green);
}

/* ===== PHASE INFO ===== */
.phase-info-block {
    margin-top: 0.5rem;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.phase-title-row {
    padding: 0.6rem 0.8rem;
    background: var(--bg-primary);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.phase-detail {
    padding: 0.8rem;
    background: var(--bg-primary);
    border-top: 1px solid var(--glass-border);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.phase-body {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    line-height: 1.5;
}

.phase-symptoms { margin-bottom: 0.8rem; }

.phase-symptoms-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 0.4rem;
}

.symptom-list {
    list-style: none;
    padding: 0;
}

.symptom-list li {
    font-size: 0.82rem;
    color: var(--text-secondary);
    padding: 0.2rem 0 0.2rem 1.2rem;
    position: relative;
    line-height: 1.4;
}

.symptom-list li::before {
    content: '•';
    position: absolute;
    left: 0.3rem;
    color: var(--accent-red);
}

.phase-tip {
    font-size: 0.8rem;
    color: var(--accent-green);
    font-style: italic;
}

/* ===== SPARKLE (Tag 0) ===== */
.phase-zero-sparkles {
    position: relative;
    height: 24px;
    overflow: hidden;
}

.sparkle {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent-green);
    opacity: 0;
    animation: sparkleFloat 3s ease-in-out infinite;
}

.sparkle:nth-child(1) { left: 10%; animation-delay: 0s; }
.sparkle:nth-child(2) { left: 30%; animation-delay: 0.6s; }
.sparkle:nth-child(3) { left: 50%; animation-delay: 1.2s; }
.sparkle:nth-child(4) { left: 70%; animation-delay: 1.8s; }
.sparkle:nth-child(5) { left: 90%; animation-delay: 2.4s; }

/* ===== CHECK-IN ACTIVITIES ===== */
.checkin-activities-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.checkin-activity-item {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
}

.checkin-activity-buttons {
    display: flex;
    gap: 0.3rem;
    align-items: center;
    margin-left: auto;
}

.btn-quick-sm {
    padding: 0.3rem 0.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-quick-sm:hover {
    background: var(--accent-blue);
    color: var(--bg-primary);
    border-color: var(--accent-blue);
}

.activity-overlay-input {
    width: 50px;
    padding: 0.3rem 0.4rem;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.8rem;
    text-align: center;
}

.activity-overlay-input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.activity-done-badge {
    background: var(--accent-green-dim);
    color: var(--accent-green);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* ===== CHECK-IN DAILY (Difficulty + Notes) ===== */
.checkin-daily {
    margin-top: 0.8rem;
    padding-top: 0.8rem;
    border-top: 1px solid var(--glass-border);
}

.checkin-difficulty-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 0.5rem;
}

.difficulty-buttons {
    display: flex;
    gap: 0.5rem;
}

.btn-diff {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s;
    text-align: center;
}

.btn-diff.active[data-diff="easy"] {
    background: var(--accent-green-dim);
    color: var(--accent-green);
    border-color: var(--accent-green);
}

.btn-diff.active[data-diff="ok"] {
    background: rgba(77, 139, 255, 0.15);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.btn-diff.active[data-diff="hard"] {
    background: var(--accent-red-dim);
    color: var(--accent-red);
    border-color: var(--accent-red);
}

.checkin-note { margin-top: 0.6rem; }

.note-input {
    width: 100%;
    padding: 0.6rem 0.8rem;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: inherit;
    resize: vertical;
    min-height: 50px;
}

.note-input:focus {
    outline: none;
    border-color: var(--accent-green);
}

/* ===== JOURNAL ===== */
.journal-preview {
    margin-top: 2rem;
}

.journal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.journal-header h2 {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.journal-link {
    color: var(--accent-green);
    text-decoration: none;
    font-size: 0.9rem;
}

.journal-entries, .journal-full-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.journal-entry {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
}

.journal-entry-full { padding: 1.2rem; }

.journal-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 45px;
}

.journal-day {
    font-size: 1.1rem;
    font-weight: 700;
}

.journal-day-big {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-green);
}

.journal-month {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.journal-weekday {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.journal-content { flex: 1; }

.difficulty-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    margin-bottom: 0.4rem;
}

.difficulty-easy {
    background: var(--accent-green-dim);
    color: var(--accent-green);
}

.difficulty-ok {
    background: rgba(77, 139, 255, 0.15);
    color: var(--accent-blue);
}

.difficulty-hard {
    background: var(--accent-red-dim);
    color: var(--accent-red);
}

.journal-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.journal-text-empty {
    font-style: italic;
    color: var(--text-muted);
}

.journal-container { max-width: 700px; }

.journal-page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes glow {
    0%, 100% { filter: drop-shadow(0 0 5px var(--accent-green)); }
    50% { filter: drop-shadow(0 0 20px var(--accent-green)); }
}

@keyframes sway {
    0%, 100% { transform: rotate(-3deg); }
    50% { transform: rotate(3deg); }
}

@keyframes particleRise {
    0% { opacity: 1; transform: translateY(0) scale(1) rotate(0deg); }
    100% { opacity: 0; transform: translateY(-120px) scale(0.5) rotate(20deg); }
}

@keyframes cardShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-5px); }
    40% { transform: translateX(5px); }
    60% { transform: translateX(-3px); }
    80% { transform: translateX(3px); }
}

@keyframes sparkleFloat {
    0% { opacity: 0; transform: translateY(20px) scale(0); }
    20% { opacity: 0.8; transform: translateY(5px) scale(1); }
    50% { opacity: 0.4; transform: translateY(-10px) scale(0.8); }
    80% { opacity: 0.6; transform: translateY(-20px) scale(1.2); }
    100% { opacity: 0; transform: translateY(-30px) scale(0); }
}

@keyframes activityFlash {
    0% { background: transparent; }
    30% { background: rgba(77, 139, 255, 0.2); }
    100% { background: transparent; }
}

@keyframes barPulse {
    0%, 100% { opacity: 0.3; width: 8px; }
    50% { opacity: 0.9; width: 16px; }
}

@keyframes milestoneGlow {
    0%, 100% { box-shadow: 0 0 5px var(--accent-gold-dim); }
    50% { box-shadow: 0 0 15px var(--accent-gold); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
    .navbar {
        flex-direction: column;
        gap: 0.8rem;
        padding: 0.8rem 1rem;
    }

    .nav-links {
        gap: 0.6rem 1rem;
        font-size: 0.85rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    .container { padding: 1rem; }
    .welcome-section { flex-direction: column; text-align: center; }

    .streak-grid {
        grid-template-columns: 1fr;
    }

    .checkin-cat {
        flex-direction: column;
        align-items: flex-start;
    }

    .heatmap-grid {
        grid-template-columns: repeat(15, 1fr);
    }
}