:root {
    --primary: #D9A066; /* Quokka Brown */
    --primary-light: #F2D0A7;
    --secondary: #8D6E63;
    --secondary-light: #A68B83;
    --accent-gold: #FFD93D;
    --bg-start: #FFFBF5;
    --bg-end: #F5E8D6;
    --card-bg: rgba(255,255,255,0.85);
    --text-main: #4A3728;
    --text-muted: #8D7B6D;
    --text-light: #B5A699;
    --glass: rgba(255,251,245,0.8);
    --shadow: 0 10px 30px rgba(141, 110, 99, 0.1);
    --shadow-sm: 0 4px 12px rgba(141, 110, 99, 0.05);
    --border: 1px solid rgba(217, 160, 102, 0.15);
    --radius: 28px;
    --radius-sm: 16px;
    --success: #6AB04C;
    --danger: #FF6B6B;
    --warning: #FFD93D;
}

* { margin:0; padding:0; box-sizing:border-box; -webkit-tap-highlight-color:transparent; }

svg[data-lucide], [data-lucide] {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    display: inline-block;
    vertical-align: middle;
}

body {
    font-family:'Outfit','Noto Sans KR','Noto Sans JP',sans-serif;
    background: var(--bg-start);
    background-image: 
        radial-gradient(var(--primary-light) 0.5px, transparent 0.5px),
        radial-gradient(var(--primary-light) 0.5px, var(--bg-start) 0.5px);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
    min-height:100vh;
    color:var(--text-main);
    overflow-x:hidden;
}

#app {
    max-width:480px;
    margin:0 auto;
    position:relative;
    min-height:100vh;
    padding-bottom:80px;
}

/* ===== AUTH OVERLAY ===== */
.auth-overlay {
    position:fixed; inset:0; z-index:2000;
    background:linear-gradient(135deg,#D9A066 0%,#8D6E63 100%);
    display:flex; align-items:center; justify-content:center;
    padding:1.5rem;
}
.auth-box {
    background:white; border-radius:24px; padding:2.5rem 2rem;
    width:100%; max-width:400px; box-shadow:0 20px 60px rgba(0,0,0,0.3);
    animation:slideUp .5s ease;
}
.auth-box h1 { text-align:center; font-size:1.8rem; margin-bottom:.3rem; }
.auth-box .subtitle { text-align:center; color:var(--text-muted); margin-bottom:2rem; font-size:.9rem; }
.auth-box .logo-jp { text-align:center; font-size:3rem; margin-bottom:.5rem; }
.form-group { margin-bottom:1.2rem; }
.form-group label { display:block; font-size:.8rem; font-weight:600; color:var(--text-muted); margin-bottom:.4rem; }
.form-group input {
    width:100%; padding:12px 16px; border:2px solid #eee; border-radius:12px;
    font-size:1rem; font-family:inherit; outline:none; transition:border .2s;
}
.form-group input:focus { border-color:var(--secondary); }
.btn {
    width:100%; padding:14px; border:none; border-radius:14px; font-size:1rem;
    font-weight:700; cursor:pointer; transition:all .2s; font-family:inherit;
}
.btn-primary { background:linear-gradient(135deg,var(--primary),var(--secondary)); color:white; }
.btn-primary:active { transform:scale(.97); }
.btn-ghost { background:transparent; color:var(--secondary); margin-top:.8rem; }
.auth-error { color:var(--danger); font-size:.85rem; text-align:center; margin-bottom:1rem; min-height:1.2rem; }

/* ===== HEADER ===== */
.glass-header {
    position:sticky; top:0; width:100%; padding:1rem 1.5rem;
    background:var(--glass); backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
    border-bottom:var(--border); display:flex; justify-content:space-between;
    align-items:center; z-index:100;
}
.glass-header h1 {
    font-size:1.3rem; font-weight:700;
    background:linear-gradient(45deg,var(--primary),var(--secondary));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent;
}
.header-right { display:flex; align-items:center; gap:6px; }
.streak-badge {
    display:flex; align-items:center; gap:4px; background:linear-gradient(135deg,#FFF9C4,#FFD54F);
    padding:6px 12px; border-radius:20px; font-weight:700; font-size:.8rem; color:#8D6E63;
    box-shadow: var(--shadow-sm);
}

/* ===== BOTTOM NAV ===== */
.bottom-nav {
    position:fixed; bottom:0; left:50%; transform:translateX(-50%);
    width:100%; max-width:480px; height:68px;
    background:var(--glass); backdrop-filter:blur(15px); -webkit-backdrop-filter:blur(15px);
    border-top:var(--border); display:flex; justify-content:space-around;
    align-items:center; z-index:1000; padding-bottom:env(safe-area-inset-bottom,0);
}
.nav-item {
    background:none; border:none; display:flex; flex-direction:column;
    align-items:center; gap:3px; color:var(--text-light); cursor:pointer;
    transition:all .25s; padding:8px 12px; position:relative;
}
.nav-item i { width:22px; height:22px; }
.nav-item span { font-size:.65rem; font-weight:600; }
.nav-item.active { color:var(--primary); }
.nav-item.active::before {
    content:''; position:absolute; top:-1px; left:50%; transform:translateX(-50%);
    width:24px; height:3px; background:var(--primary); border-radius:0 0 3px 3px;
}

/* ===== MAIN ===== */
main { padding:1.2rem; animation:fadeIn .4s ease; }
@keyframes fadeIn { from{opacity:0;transform:translateY(8px)} to{opacity:1;transform:translateY(0)} }
@keyframes slideUp { from{opacity:0;transform:translateY(30px)} to{opacity:1;transform:translateY(0)} }
@keyframes pulse { 0%,100%{transform:scale(1)} 50%{transform:scale(1.05)} }

/* ===== CARDS ===== */
.card {
    background:var(--card-bg); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
    border-radius:var(--radius); padding:1.5rem; margin-bottom:1.5rem;
    box-shadow:var(--shadow); border:var(--border); transition:all .3s cubic-bezier(0.4, 0, 0.2, 1);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card:active { transform:scale(.97); }
.card-title {
    font-size:1.15rem; font-weight:800; margin-bottom:1rem;
    display:flex; align-items:center; gap:.6rem;
    color: var(--secondary);
}

/* ===== ATTENDANCE ===== */
.checkin-btn {
    width:100%; padding:16px; border:none; border-radius:14px;
    font-size:1.1rem; font-weight:700; cursor:pointer; font-family:inherit;
    background:linear-gradient(135deg,var(--success),#00cec9); color:white;
    box-shadow:0 4px 15px rgba(0,184,148,.3); transition:all .2s;
}
.checkin-btn:active { transform:scale(.96); }
.checkin-btn:disabled {
    background:#f0ebe4; color:#B5A699; box-shadow:none; cursor:default;
}
.checkin-done { background:var(--success)!important; opacity:.8; }

/* ===== XP BAR ===== */
.xp-bar-wrap { background:#eee; height:8px; border-radius:4px; overflow:hidden; margin:6px 0; }
.xp-bar-fill { height:100%; border-radius:4px; background:linear-gradient(90deg,var(--primary),var(--secondary)); transition:width .6s ease; }

/* ===== CARD PROGRESS ===== */
.card-progress { position:absolute; top:0; left:0; right:0; height:4px; background:rgba(0,0,0,0.05); border-radius:var(--radius) var(--radius) 0 0; overflow:hidden; }
.card-progress-fill { height:100%; background:var(--primary); transition:width .4s ease; }

/* ===== KANA GRID ===== */
.kana-grid { display:grid; grid-template-columns:repeat(5,1fr); gap:8px; }
.kana-item {
    aspect-ratio:1; background:white; border-radius:var(--radius-sm);
    display:flex; flex-direction:column; justify-content:center; align-items:center;
    box-shadow:var(--shadow-sm); cursor:pointer; transition:all .15s; position:relative;
}
.kana-item:active { transform:scale(.92); }
.kana-item.mastered { background:linear-gradient(135deg,#dfe6e9,#b2bec3); }
.kana-item.mastered::after {
    content:'✓'; position:absolute; top:2px; right:4px; font-size:.5rem; color:var(--success);
}
.kana-jp { font-size:1.4rem; font-weight:700; font-family:'Noto Sans JP',sans-serif; line-height:1.2; }
.kana-ro { font-size:.6rem; color:var(--text-muted); }

/* ===== TOGGLE GROUP ===== */
.toggle-group { display:flex; background:rgba(0,0,0,.05); padding:3px; border-radius:var(--radius-sm); margin-bottom:1rem; }
.toggle-btn {
    flex:1; border:none; padding:8px 4px; border-radius:8px; background:transparent;
    font-weight:600; font-size:.85rem; cursor:pointer; transition:all .25s; font-family:inherit;
}
.toggle-btn.active { background:white; box-shadow:var(--shadow-sm); color:var(--primary); }

/* ===== CANVAS WRITING ===== */
.canvas-area { text-align:center; }
.canvas-target {
    font-size:4rem; font-family:'Noto Sans JP',sans-serif; font-weight:700;
    color:var(--text-muted); opacity:.3; margin-bottom:.5rem;
}
.canvas-wrap {
    position:relative; display:inline-block; border-radius:var(--radius);
    overflow:hidden; box-shadow:var(--shadow); border:3px solid #eee;
    touch-action:none; background:white;
}
#draw-canvas { display:block; position:relative; z-index:2; background:transparent; }
.canvas-guide-text {
    position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
    font-size:10rem; font-family:'Noto Sans JP',sans-serif; color:#f0f0f0;
    z-index:1; pointer-events:none; user-select:none;
}
.canvas-btns { display:flex; gap:8px; margin-top:.8rem; justify-content:center; }
.canvas-btns button {
    padding:10px 20px; border:none; border-radius:var(--radius-sm);
    font-weight:600; font-size:.85rem; cursor:pointer; font-family:inherit; transition:all .15s;
}
.btn-clear { background:#dfe6e9; color:var(--text-main); }
.btn-correct { background:var(--success); color:white; }
.btn-wrong { background:var(--danger); color:white; }
.btn-next { background:var(--secondary); color:white; }

/* ===== QUIZ ===== */
.quiz-char { font-size:5rem; font-family:'Noto Sans JP',sans-serif; text-align:center; margin:1rem 0; }
.quiz-options { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.quiz-opt {
    padding:16px; border:2px solid #eee; border-radius:var(--radius-sm); background:white;
    font-size:1.1rem; font-weight:600; cursor:pointer; transition:all .15s; text-align:center;
}
.quiz-opt:active { transform:scale(.95); }
.quiz-opt.correct { border-color:var(--success); background:#d5f5e3; }
.quiz-opt.wrong { border-color:var(--danger); background:#fadbd8; }
.quiz-score { text-align:center; color:var(--text-muted); font-size:.9rem; margin-bottom:1rem; }

/* ===== VOCAB ===== */
.search-wrap {
    display:flex; align-items:center; background:#f5f5f5; padding:10px 14px;
    border-radius:var(--radius-sm); gap:8px;
}
.search-wrap i { width:18px; color:#aaa; flex-shrink:0; }
.search-wrap input { border:none; background:transparent; outline:none; width:100%; font-family:inherit; font-size:.95rem; }
.category-pills { display:flex; gap:6px; overflow-x:auto; padding:8px 0; scrollbar-width:none; }
.category-pills::-webkit-scrollbar { display:none; }
.pill {
    flex-shrink:0; padding:6px 14px; border-radius:20px; border:1.5px solid #ddd;
    font-size:.8rem; font-weight:600; cursor:pointer; transition:all .2s; background:white;
}
.pill.active { background:var(--primary); color:white; border-color:var(--primary); }
.vocab-list { display:flex; flex-direction:column; gap:10px; }
.vocab-item {
    display:flex; justify-content:space-between; align-items:center;
    padding:14px; background:white; border-radius:var(--radius-sm);
    box-shadow:var(--shadow-sm); transition:all .15s;
}
.vocab-item:active { transform:scale(.98); }
.vocab-jp { font-size:1.1rem; font-weight:600; font-family:'Noto Sans JP',sans-serif; }
.vocab-ro { font-size:.75rem; color:var(--text-light); }
.vocab-ko { font-size:.85rem; color:var(--text-muted); margin-top:2px; }
.vocab-right { display:flex; align-items:center; gap:8px; }
.vocab-learned { color:var(--success); }

/* ===== MY PAGE ===== */
.profile-card { text-align:center; padding:2rem 1rem; }
.avatar {
    width:80px; height:80px; border-radius:50%; margin:0 auto 1rem;
    background:linear-gradient(135deg,var(--primary-light),var(--secondary-light));
    display:flex; align-items:center; justify-content:center; font-size:2rem; color:white;
}
.stat-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin-top:1rem; }
.stat-item { text-align:center; }
.stat-num { font-size:1.4rem; font-weight:700; color:var(--secondary); }
.stat-label { font-size:.7rem; color:var(--text-muted); }
.menu-list { padding:0; }
.menu-item {
    padding:14px 16px; border-bottom:1px solid #f0f0f0;
    display:flex; justify-content:space-between; align-items:center; cursor:pointer;
}
.menu-item:last-child { border-bottom:none; }

/* ===== TOAST ===== */
.toast {
    position:fixed; top:20px; left:50%; transform:translateX(-50%) translateY(-100px);
    background:white; padding:12px 24px; border-radius:var(--radius-sm);
    box-shadow:0 10px 40px rgba(0,0,0,0.15); font-weight:600; font-size:.9rem;
    z-index:3000; transition:transform .3s ease; max-width:90%;
}
.toast.show { transform:translateX(-50%) translateY(0); }
.toast-success { border-left:4px solid var(--success); }
.toast-error { border-left:4px solid var(--danger); }
.toast-info { border-left:4px solid var(--secondary); }

/* ===== QUICK GRID ===== */
.quick-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.quick-card {
    background:var(--card-bg); border-radius:var(--radius); padding:1.2rem;
    text-align:center; box-shadow:var(--shadow-sm); border:var(--border);
    cursor:pointer; transition:all .15s;
}
.quick-card:active { transform:scale(.96); }
.quick-card i { margin-bottom:6px; }
.quick-card .label { font-weight:600; font-size:.9rem; }

/* Help & Hint buttons */
.help-btn {
    background: none; border: none; color: var(--secondary);
    font-size: 0.7rem; font-weight: 600; cursor: pointer;
    padding: 2px 6px; border: 1px solid var(--secondary-light);
    border-radius: 4px; margin-top: 6px; display: inline-flex;
    align-items: center; gap: 2px; transition: all 0.2s;
}
.help-btn:active { background: var(--secondary-light); color: white; }

.hint-wrap { margin-bottom: 12px; animation: slideDown 0.3s ease; }
@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

.hint-trigger-btn {
    background: rgba(255,217,61,0.1); border: 1.5px dashed var(--warning);
    color: var(--secondary); font-size: 0.85rem; font-weight: 700;
    padding: 12px; border-radius: 16px; margin-bottom: 12px;
    width: 100%; display: flex; align-items: center; justify-content: center; gap: 8px;
    transition: all 0.2s;
}
.hint-trigger-btn:hover { background: rgba(255,217,61,0.2); }

/* ===== MISC ===== */
.text-center { text-align:center; }
.mb-1 { margin-bottom:.8rem; }
.mb-2 { margin-bottom:1.2rem; }
.text-muted { color:var(--text-muted); }
.text-sm { font-size:.85rem; }
.hidden { display:none!important; }

/* ===== SPINNER ===== */
.spinner {
    display: inline-block;
    width: 14px; height: 14px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

button:disabled { cursor: not-allowed; opacity: 0.7; }

/* ===== DAILY POSTS ===== */
.daily-input-wrap { display: flex; gap: 8px; margin-bottom: 16px; }
.daily-input-wrap input {
    flex: 1; padding: 10px 14px; border: 1.5px solid #eee;
    border-radius: 12px; font-size: 0.9rem; outline: none; transition: border 0.2s;
}
.daily-input-wrap input:focus { border-color: var(--primary); }

.daily-posts-list { display: flex; flex-direction: column; gap: 12px; max-height: 400px; overflow-y: auto; padding-right: 4px; }
.daily-posts-list::-webkit-scrollbar { width: 4px; }
.daily-posts-list::-webkit-scrollbar-thumb { background: #eee; border-radius: 2px; }

.daily-post-item {
    background: white; padding: 12px; border-radius: 14px;
    box-shadow: var(--shadow-sm); border: 1px solid #f8f9fa;
}
.dp-header { display: flex; align-items: center; gap: 6px; margin-bottom: 6px; }
.dp-name { font-weight: 700; font-size: 0.85rem; color: var(--text-main); }
.dp-level { font-size: 0.7rem; font-weight: 600; color: var(--secondary); background: rgba(108, 92, 231, 0.1); padding: 2px 6px; border-radius: 4px; }
.dp-date { font-size: 0.65rem; color: var(--text-light); margin-left: auto; }
.dp-content { font-size: 0.9rem; line-height: 1.4; color: var(--text-main); word-break: break-all; }
.dp-actions { display: flex; gap: 8px; margin-top: 8px; border-top: 1px solid #f8f9fa; padding-top: 8px; }
.dp-actions button {
    background: none; border: none; font-size: 0.7rem; color: var(--text-muted);
    cursor: pointer; padding: 2px 4px;
}
.dp-actions button:hover { color: var(--primary); }

.py-2 { padding-top: 1rem; padding-bottom: 1rem; }

/* ===== CHAT MESSENGER ===== */
.chat-list { display: flex; flex-direction: column; gap: 12px; }
.chat-scenario-card {
    background: var(--card-bg); border-radius: var(--radius); padding: 16px;
    display: flex; align-items: center; gap: 14px; cursor: pointer;
    box-shadow: var(--shadow-sm); border: var(--border); transition: all 0.2s;
}
.chat-scenario-card:active { transform: scale(0.98); }
.chat-scenario-card.completed { background: rgba(0, 184, 148, 0.05); border-color: var(--success); }
.chat-scen-icon {
    width: 44px; height: 44px; background: var(--secondary-light);
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    color: white; flex-shrink: 0;
}
.chat-scen-info { flex: 1; }
.chat-scen-title { font-weight: 700; font-size: 1rem; color: var(--text-main); margin-bottom: 2px; }
.chat-scen-desc { font-size: 0.8rem; color: var(--text-muted); }

/* CHAT ROOM */
.chat-room-container {
    display: flex; flex-direction: column; height: calc(100vh - 160px);
}
.chat-messages-area {
    flex: 1; overflow-y: auto; padding: 10px 0;
    display: flex; flex-direction: column; gap: 12px;
    scrollbar-width: none;
}
.chat-messages-area::-webkit-scrollbar { display: none; }
.chat-bubble {
    max-width: 80%; padding: 12px 16px; border-radius: 18px;
    font-size: 0.95rem; line-height: 1.4; position: relative;
    animation: bubbleIn 0.3s ease;
}
@keyframes bubbleIn { from { opacity: 0; transform: translateY(10px) scale(0.95); } to { opacity: 1; transform: translateY(0) scale(1); } }

.bot-bubble {
    align-self: flex-start; background: white; color: var(--text-main);
    border-bottom-left-radius: 4px; box-shadow: var(--shadow-sm);
}
.user-bubble {
    align-self: flex-end; background: var(--secondary); color: white;
    border-bottom-right-radius: 4px; box-shadow: 0 4px 12px rgba(108, 92, 231, 0.2);
}
.bubble-sub { font-size: 0.75rem; opacity: 0.7; margin-top: 4px; border-top: 1px solid rgba(0,0,0,0.05); padding-top: 4px; }

.chat-options-area {
    padding-top: 15px; display: flex; flex-direction: column; gap: 8px;
}
.chat-opt-btn {
    width: 100%; padding: 12px 16px; border: 2px solid #eee;
    border-radius: 14px; background: white; text-align: left;
    font-weight: 600; font-size: 0.9rem; cursor: pointer;
    transition: all 0.2s; display: flex; flex-direction: column;
}
.chat-opt-btn:active { background: #f8f9fa; transform: translateY(-2px); border-color: var(--secondary-light); }
.chat-opt-btn small { display: none; } /* Hidden by default */

/* Global Loading Dim */
.loading-dim {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(255, 251, 245, 0.85);
    backdrop-filter: blur(6px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.loading-dim:not(.hidden) {
    opacity: 1;
    pointer-events: all;
}

.loading-content {
    text-align: center;
}

.loading-quokka {
    width: 140px;
    height: 140px;
    margin-bottom: 1rem;
    animation: bounce 1s infinite ease-in-out;
}

.loading-content p {
    color: var(--secondary);
    font-weight: 700;
    font-size: 1.2rem;
    font-family: 'Outfit', sans-serif;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

/* Notice Dialog */
.notice-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    padding: 20px;
}

.notice-card {
    background: white;
    width: 100%;
    max-width: 400px;
    border-radius: 24px;
    padding: 24px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    animation: slideUp 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes slideUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.notice-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--secondary);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.notice-body {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-main);
    margin-bottom: 24px;
}

.notice-footer {
    display: flex;
    gap: 12px;
}

.notice-footer .btn {
    flex: 1;
}

/* AD Banner (Strip) */
.ad-banner {
    width: 100%;
    max-width: 340px;
    margin: 16px auto;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #fdfdfd;
    border-radius: 12px;
    padding: 8px;
    border: 1px solid #f0f0f0;
    overflow: hidden;
}