/* ===========================================
   CSS Variables & Theme Configuration
   =========================================== */
:root {
    /* Day Mode Colors (Default) */
    --primary: #4A90D9;
    --primary-dark: #3A7BC8;
    --secondary: #6C5CE7;
    --background: #F8F9FA;
    --surface: #FFFFFF;
    --surface-elevated: #FFFFFF;
    --text: #2D3436;
    --text-secondary: #636E72;
    --accent: #00B894;
    --accent-hover: #00A884;
    --error: #E74C3C;
    --error-light: #FDE8E6;
    --border: #DFE6E9;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-strong: rgba(0, 0, 0, 0.2);

    /* Cat Colors */
    --cat-body: #FF9F43;
    --cat-body-dark: #F39C12;
    --cat-inner-ear: #FDA7DF;
    --cat-nose: #E17055;
    --cat-mouth: #E17055;

    /* Dog Colors */
    --dog-body: #A0522D;
    --dog-body-dark: #8B4513;
    --dog-inner-ear: #DEB887;
    --dog-nose: #2D3436;

    /* Hamster Colors */
    --hamster-body: #FFB6C1;
    --hamster-body-dark: #FF69B4;
    --hamster-cheek: #FFA07A;
    --hamster-nose: #FF6B6B;

    /* Common Colors */
    --eye-white: #FFFFFF;
    --pupil-dark: #2D3436;
    --blush-color: rgba(255, 182, 193, 0.6);
    --sweat-color: #87CEEB;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Font */
    --font-family: 'Noto Sans JP', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
}

/* Night Mode */
[data-theme="dark"] {
    --primary: #74B9FF;
    --primary-dark: #5AA0E0;
    --secondary: #A29BFE;
    --background: #1A1A2E;
    --surface: #16213E;
    --surface-elevated: #1E2A4A;
    --text: #EAEAEA;
    --text-secondary: #B2BEC3;
    --accent: #55EFC4;
    --accent-hover: #4AE0B5;
    --error: #FF7675;
    --error-light: #4A2C2C;
    --border: #2D3A5C;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-strong: rgba(0, 0, 0, 0.5);
}

/* ===========================================
   Reset & Base Styles
   =========================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
    transition: background-color var(--transition-slow), color var(--transition-slow);
    min-height: 100vh;
    overflow-x: hidden;
}

.hidden { display: none !important; }
.page { min-height: 100vh; }

/* ===========================================
   Login Page Styles
   =========================================== */
#login-page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Mascot Container - Top 1/3 */
.mascot-container {
    height: 33.333vh;
    min-height: 280px;
    max-height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    position: relative;
    overflow: hidden;
}

/* Background Stars */
.bg-stars {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(2px 2px at 20px 30px, white, transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.8), transparent),
        radial-gradient(1px 1px at 90px 40px, white, transparent),
        radial-gradient(2px 2px at 130px 80px, rgba(255,255,255,0.6), transparent),
        radial-gradient(1px 1px at 160px 20px, white, transparent);
    background-size: 200px 100px;
    animation: twinkle 3s ease-in-out infinite;
    opacity: 0.5;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

/* Background Clouds */
.bg-clouds {
    position: absolute;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse 80px 40px at 10% 80%, rgba(255,255,255,0.3), transparent),
        radial-gradient(ellipse 100px 50px at 30% 70%, rgba(255,255,255,0.2), transparent),
        radial-gradient(ellipse 60px 30px at 70% 85%, rgba(255,255,255,0.25), transparent),
        radial-gradient(ellipse 90px 45px at 90% 75%, rgba(255,255,255,0.2), transparent);
    animation: float-clouds 20s linear infinite;
}

@keyframes float-clouds {
    0% { transform: translateX(0); }
    100% { transform: translateX(-100px); }
}

/* ===========================================
   Mascot Stage - Container for all mascots
   =========================================== */
.mascot-stage {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 20px;
    z-index: 10;
    padding-bottom: 20px;
}

/* ===========================================
   Individual Mascot Wrapper
   =========================================== */
.mascot-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.3s ease;
}

.mascot-wrapper.center {
    transform: scale(1.1);
    z-index: 20;
}

.mascot-wrapper:hover {
    transform: translateY(-10px) scale(1.05);
}

.mascot-wrapper.center:hover {
    transform: translateY(-15px) scale(1.15);
}

/* Shadow under mascots */
.mascot-shadow {
    position: absolute;
    bottom: -10px;
    width: 80px;
    height: 20px;
    background: radial-gradient(ellipse, rgba(0,0,0,0.3) 0%, transparent 70%);
    border-radius: 50%;
    animation: shadow-pulse 2s ease-in-out infinite;
}

@keyframes shadow-pulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(0.8); opacity: 0.5; }
}

/* ===========================================
   Base Mascot Styles
   =========================================== */
.mascot {
    position: relative;
    cursor: pointer;
    transition: transform 0.3s ease;
}

/* Body */
.animal-body {
    position: relative;
    border-radius: 50% 50% 45% 45%;
    box-shadow:
        0 10px 30px rgba(0,0,0,0.3),
        inset 0 -15px 30px rgba(0,0,0,0.2),
        inset 0 15px 30px rgba(255,255,255,0.3);
    animation: body-float 3s ease-in-out infinite;
}

/* Cat Body */
.cat .animal-body {
    width: 100px;
    height: 90px;
    background: linear-gradient(145deg, var(--cat-body) 0%, var(--cat-body-dark) 100%);
}

/* Dog Body */
.dog .animal-body {
    width: 110px;
    height: 100px;
    background: linear-gradient(145deg, var(--dog-body) 0%, var(--dog-body-dark) 100%);
}

/* Hamster Body */
.hamster .animal-body {
    width: 85px;
    height: 75px;
    background: linear-gradient(145deg, var(--hamster-body) 0%, var(--hamster-body-dark) 100%);
}

@keyframes body-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ===========================================
   Animal Ears
   =========================================== */
.animal-ear {
    position: absolute;
    top: -20px;
    width: 35px;
    height: 45px;
    background: inherit;
    border-radius: 50% 50% 0 0;
    z-index: -1;
}

.animal-ear::before {
    content: '';
    position: absolute;
    width: 55%;
    height: 55%;
    background: var(--cat-inner-ear);
    top: 30%;
    left: 22%;
    border-radius: 50% 50% 0 0;
}

/* Cat ears - pointed */
.cat .animal-ear.left { left: 8px; transform: rotate(-20deg); }
.cat .animal-ear.right { right: 8px; transform: rotate(20deg); }

/* Dog ears - floppy */
.dog .animal-ear {
    width: 45px;
    height: 60px;
    border-radius: 0 0 50% 50%;
    top: -10px;
}
.dog .animal-ear::before { display: none; }
.dog .animal-ear.left { left: -15px; transform: rotate(-30deg); animation: ear-flop-left 2s ease-in-out infinite; }
.dog .animal-ear.right { right: -15px; transform: rotate(30deg); animation: ear-flop-right 2s ease-in-out infinite; }

@keyframes ear-flop-left {
    0%, 100% { transform: rotate(-30deg); }
    50% { transform: rotate(-25deg); }
}

@keyframes ear-flop-right {
    0%, 100% { transform: rotate(30deg); }
    50% { transform: rotate(25deg); }
}

/* Hamster ears - round */
.hamster .animal-ear {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    top: -12px;
}
.hamster .animal-ear::before {
    width: 50%;
    height: 50%;
    border-radius: 50%;
}
.hamster .animal-ear.left { left: 10px; }
.hamster .animal-ear.right { right: 10px; }

/* ===========================================
   Animal Face
   =========================================== */
.animal-face {
    position: absolute;
    top: 25%;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 70%;
}

/* Head Container (for tilting) */
.head-container {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.3s ease;
}

/* Eyes Row */
.eyes-row {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 5px;
}

.eyes-row.small-gap {
    gap: 10px;
}

/* Eye Group (for blinking) */
.eye-group {
    position: relative;
}

.eye-group .eyelid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: inherit;
    border-radius: inherit;
    transition: height 0.1s ease;
    z-index: 5;
}

.eye-group .eyelid.top {
    transform-origin: top center;
}

/* Eye */
.eye {
    width: 32px;
    height: 32px;
    background: var(--eye-white);
    border-radius: 50%;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
    overflow: visible;
}

.eye.small {
    width: 24px;
    height: 24px;
}

/* Pupil */
.pupil {
    width: 14px;
    height: 14px;
    background: var(--pupil-dark);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: transform 0.1s ease-out;
    z-index: 2;
}

.eye.small .pupil {
    width: 10px;
    height: 10px;
}

/* Pupil highlight */
.pupil::before {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: white;
    border-radius: 50%;
    top: 2px;
    right: 2px;
}

.eye.small .pupil::before {
    width: 3px;
    height: 3px;
}

/* ===========================================
   Nose
   =========================================== */
.nose {
    width: 12px;
    height: 10px;
    background: var(--cat-nose);
    border-radius: 50% 50% 50% 50% / 30% 30% 70% 70%;
    margin: 8px auto 0;
}

.nose.small {
    width: 8px;
    height: 6px;
}

.nose.pink {
    background: var(--hamster-nose);
}

.dog-nose {
    width: 16px;
    height: 12px;
    background: var(--dog-nose);
    border-radius: 50% 50% 50% 50% / 40% 40% 60% 60%;
}

/* ===========================================
   Mouth Styles
   =========================================== */
.mouth {
    width: 25px;
    height: 12px;
    margin: 3px auto 0;
    position: relative;
}

/* Cat mouth - :3 */
.cat-mouth::before,
.cat-mouth::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 10px;
    border: 2px solid var(--cat-mouth);
    border-top: none;
    border-radius: 0 0 50% 50%;
    top: 0;
}
.cat-mouth::before { left: 0; border-right: none; }
.cat-mouth::after { right: 0; border-left: none; }

/* Dog mouth - elongated */
.dog-mouth {
    width: 30px;
    height: 8px;
    border-bottom: 3px solid var(--dog-nose);
    border-radius: 0 0 50% 50%;
}

/* Hamster mouth - tiny smile */
.hamster-mouth {
    width: 12px;
    height: 6px;
    border-bottom: 2px solid var(--hamster-nose);
    border-radius: 0 0 50% 50%;
}

/* ===========================================
   Whiskers
   =========================================== */
.whiskers-group {
    position: absolute;
    top: 55%;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.whiskers-group.left { left: -18px; }
.whiskers-group.right { right: -18px; }

.whiskers-group .whisker {
    width: 20px;
    height: 2px;
    background: #888;
    border-radius: 2px;
}

.whiskers-group.tiny .whisker {
    width: 12px;
    height: 1px;
}

.whiskers-group.left .whisker:nth-child(1) { transform: rotate(-15deg); }
.whiskers-group.left .whisker:nth-child(2) { transform: rotate(5deg); }
.whiskers-group.right .whisker:nth-child(1) { transform: rotate(15deg); }
.whiskers-group.right .whisker:nth-child(2) { transform: rotate(-5deg); }

/* ===========================================
   Cheeks (Hamster)
   =========================================== */
.cheek {
    position: absolute;
    width: 30px;
    height: 25px;
    background: var(--hamster-cheek);
    border-radius: 50%;
    top: 40%;
    opacity: 0.8;
}

.cheek.left { left: -10px; }
.cheek.right { right: -10px; }

/* ===========================================
   Snout (Dog)
   =========================================== */
.snout {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 5px;
}

/* ===========================================
   Blush
   =========================================== */
.blush {
    position: absolute;
    width: 15px;
    height: 8px;
    background: var(--blush-color);
    border-radius: 50%;
    top: 50%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.blush.left { left: 5%; }
.blush.right { right: 5%; }

/* Show blush when active */
.mascot-wrapper.active .blush,
.mascot-wrapper.sneaky .blush,
.mascot-wrapper.guilty .blush,
.mascot-wrapper.happy .blush {
    opacity: 1;
}

/* ===========================================
   Sweat Drop
   =========================================== */
.sweat-drop {
    position: absolute;
    top: 15%;
    right: 10%;
    width: 8px;
    height: 12px;
    background: var(--sweat-color);
    border-radius: 50% 50% 50% 50% / 30% 30% 70% 70%;
    opacity: 0;
    transform: translateY(-5px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.sweat-drop.visible {
    opacity: 1;
    animation: sweat-drip 1.5s ease-in-out infinite;
}

@keyframes sweat-drip {
    0% { transform: translateY(-5px); }
    50% { transform: translateY(5px); }
    100% { transform: translateY(-5px); }
}

/* ===========================================
   Tongue (Dog)
   =========================================== */
.tongue {
    position: absolute;
    bottom: 15%;
    left: 50%;
    transform: translateX(-50%);
    width: 15px;
    height: 20px;
    background: #FF6B6B;
    border-radius: 0 0 50% 50%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tongue.visible {
    opacity: 1;
    animation: tongue-pant 0.5s ease-in-out infinite;
}

@keyframes tongue-pant {
    0%, 100% { height: 20px; }
    50% { height: 25px; }
}

/* ===========================================
   Tail (Dog)
   =========================================== */
.tail {
    position: absolute;
    bottom: 30%;
    right: -20px;
    width: 15px;
    height: 50px;
    background: linear-gradient(90deg, var(--dog-body) 0%, var(--dog-body-dark) 100%);
    border-radius: 10px;
    transform-origin: bottom center;
    animation: tail-wag 0.4s ease-in-out infinite;
}

@keyframes tail-wag {
    0%, 100% { transform: rotate(-20deg); }
    50% { transform: rotate(20deg); }
}

/* ===========================================
   Expression Arms
   =========================================== */
.expression-arms {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 90px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.expression-arms.visible {
    opacity: 1;
}

.expression-arms.tiny {
    gap: 70px;
}

.expr-arm {
    width: 15px;
    height: 35px;
    background: inherit;
    border-radius: 10px;
    transform-origin: bottom center;
}

.expr-arm.tiny {
    width: 10px;
    height: 20px;
}

/* ===========================================
   Speech Bubble
   =========================================== */
.speech-bubble {
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: bold;
    color: #333;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
}

.speech-bubble::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: white;
    border-bottom: 0;
}

.speech-bubble.visible {
    opacity: 1;
    animation: bubble-bounce 0.5s ease-out;
}

@keyframes bubble-bounce {
    0% { transform: translateX(-50%) scale(0); }
    50% { transform: translateX(-50%) scale(1.1); }
    100% { transform: translateX(-50%) scale(1); }
}

/* ===========================================
   Emotion Indicator
   =========================================== */
.emotion-indicator {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.6);
    padding: 5px 15px;
    border-radius: 20px;
    z-index: 100;
}

.emotion-text {
    color: white;
    font-size: 12px;
    font-weight: 500;
}

/* ===========================================
   State-Based Animations - ENHANCED
   =========================================== */

/* --- Idle State --- */
.mascot-wrapper.idle .head-container {
    animation: idle-nod 4s ease-in-out infinite;
}

@keyframes idle-nod {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-3deg); }
    75% { transform: rotate(3deg); }
}

/* --- Idle body float --- */
.mascot-wrapper.idle .animal-body {
    animation: body-float-idle 3s ease-in-out infinite;
}

@keyframes body-float-idle {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-10px) scale(1.02); }
}

/* --- Sneaky Peek State (when typing) - ENHANCED --- */
.mascot-wrapper.sneaky .head-container {
    animation: sneaky-peek 0.8s ease-in-out infinite;
}

@keyframes sneaky-peek {
    0%, 100% { transform: rotate(-8deg) translateX(-5px) scale(1.05); }
    50% { transform: rotate(8deg) translateX(5px) scale(1.05); }
}

/* Enlarged eyes when sneaky */
.mascot-wrapper.sneaky .eye {
    animation: eye-enlarge 0.5s ease-out forwards;
}

@keyframes eye-enlarge {
    0% { transform: scale(1); }
    100% { transform: scale(1.3); }
}

.mascot-wrapper.sneaky .pupil {
    animation: sneaky-eyes 0.4s ease-in-out infinite;
}

@keyframes sneaky-eyes {
    0%, 100% { transform: translate(-50%, 30%) !important; }
    50% { transform: translate(-50%, 20%) !important; }
}

/* Body bending when sneaky - enhanced */
.mascot-wrapper.sneaky .animal-body {
    animation: sneaky-body 0.8s ease-in-out infinite;
}

@keyframes sneaky-body {
    0%, 100% { transform: translateY(0) rotate(-3deg); }
    50% { transform: translateY(5px) rotate(3deg); }
}

/* Left mascot (cat) bends more */
#mascot-cat.sneaky .animal-body {
    animation: sneaky-body-cat 0.6s ease-in-out infinite;
}

@keyframes sneaky-body-cat {
    0%, 100% { transform: translateY(3px) rotate(-12deg) scale(0.95); }
    50% { transform: translateY(8px) rotate(-8deg) scale(0.98); }
}

/* Middle mascot (dog) bends the most */
#mascot-dog.sneaky .animal-body {
    animation: sneaky-body-dog 0.5s ease-in-out infinite;
}

@keyframes sneaky-body-dog {
    0%, 100% { transform: translateY(5px) rotate(15deg) scale(1.1); }
    50% { transform: translateY(10px) rotate(18deg) scale(1.15); }
}

/* Right mascot (hamster) bends */
#mascot-hamster.sneaky .animal-body {
    animation: sneaky-body-hamster 0.6s ease-in-out infinite;
}

@keyframes sneaky-body-hamster {
    0%, 100% { transform: translateY(3px) rotate(12deg) scale(0.95); }
    50% { transform: translateY(8px) rotate(8deg) scale(0.98); }
}

.mascot-wrapper.sneaky .sweat-drop {
    opacity: 1;
    animation: sweat-drip 0.8s ease-in-out infinite;
}

/* Arms wave when sneaky */
.mascot-wrapper.sneaky .expression-arms {
    opacity: 1;
}

.mascot-wrapper.sneaky .expr-arm {
    animation: sneaky-arm 0.4s ease-in-out infinite;
}

@keyframes sneaky-arm {
    0%, 100% { transform: rotate(-30deg) translateY(-5px); }
    50% { transform: rotate(-50deg) translateY(-10px); }
}

/* --- Guilty State (password visible) - ENHANCED --- */
/* Left mascot (cat) looks left */
.mascot-wrapper.guilty #mascot-cat .head-container {
    animation: guilty-shake-left 0.4s ease-in-out infinite;
}

@keyframes guilty-shake-left {
    0%, 100% { transform: rotate(-15deg) translateX(-10px); }
    50% { transform: rotate(-18deg) translateX(-15px); }
}

/* Right mascot (hamster) looks right */
.mascot-wrapper.guilty #mascot-hamster .head-container {
    animation: guilty-shake-right 0.4s ease-in-out infinite;
}

@keyframes guilty-shake-right {
    0%, 100% { transform: rotate(15deg) translateX(10px); }
    50% { transform: rotate(18deg) translateX(15px); }
}

/* Middle mascot (dog) looks up */
.mascot-wrapper.guilty #mascot-dog .head-container {
    animation: guilty-shake-up 0.4s ease-in-out infinite;
}

@keyframes guilty-shake-up {
    0%, 100% { transform: translateY(-15px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(3deg); }
}

.mascot-wrapper.guilty .pupil {
    animation: look-away-guilty 0.5s ease-out forwards;
}

@keyframes look-away-guilty {
    0% { transform: translate(-50%, -50%); }
    100% { transform: translate(100%, -150%); }
}

/* Different pupil directions for guilty state */
.mascot-wrapper.guilty #mascot-cat .pupil {
    animation: look-left-hard 0.3s ease-out forwards;
}

@keyframes look-left-hard {
    0% { transform: translate(-50%, -50%); }
    100% { transform: translate(-150%, -50%); }
}

.mascot-wrapper.guilty #mascot-hamster .pupil {
    animation: look-right-hard 0.3s ease-out forwards;
}

@keyframes look-right-hard {
    0% { transform: translate(-50%, -50%); }
    100% { transform: translate(50%, -50%); }
}

.mascot-wrapper.guilty #mascot-dog .pupil {
    animation: look-up-hard 0.3s ease-out forwards;
}

@keyframes look-up-hard {
    0% { transform: translate(-50%, -50%); }
    100% { transform: translate(-50%, -150%); }
}

.mascot-wrapper.guilty .blush {
    opacity: 1;
    animation: blush-pulse 0.4s ease-in-out infinite;
}

@keyframes blush-pulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.3); }
}

.mascot-wrapper.guilty .sweat-drop {
    opacity: 1;
    animation: sweat-drip 0.6s ease-in-out infinite;
}

/* Body shake for guilty */
.mascot-wrapper.guilty .animal-body {
    animation: guilty-body-shake 0.3s ease-in-out infinite;
}

@keyframes guilty-body-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-3px); }
    75% { transform: translateX(3px); }
}

/* Dog specific guilty - panting */
.mascot-wrapper.guilty.dog .tongue {
    opacity: 1;
    animation: tongue-pant 0.25s ease-in-out infinite;
}

/* Guilty arms waving nervously */
.mascot-wrapper.guilty .expression-arms {
    opacity: 1;
}

.mascot-wrapper.guilty .expr-arm.left {
    animation: guilty-arm-left 0.3s ease-in-out infinite;
}

.mascot-wrapper.guilty .expr-arm.right {
    animation: guilty-arm-right 0.3s ease-in-out infinite;
}

@keyframes guilty-arm-left {
    0%, 100% { transform: rotate(-45deg); }
    50% { transform: rotate(-60deg); }
}

@keyframes guilty-arm-right {
    0%, 100% { transform: rotate(45deg); }
    50% { transform: rotate(60deg); }
}

/* --- Happy/Cheer State - ENHANCED --- */
.mascot-wrapper.happy .animal-body {
    animation: happy-bounce 0.3s ease-in-out infinite;
}

@keyframes happy-bounce {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-25px) scale(1.15); }
}

.mascot-wrapper.happy .head-container {
    animation: happy-shake 0.2s ease-in-out infinite;
}

@keyframes happy-shake {
    0%, 100% { transform: rotate(-10deg); }
    50% { transform: rotate(10deg); }
}

/* Happy spinning animation */
.mascot-wrapper.happy {
    animation: happy-spin 0.6s ease-in-out infinite;
}

@keyframes happy-spin {
    0%, 100% { transform: rotate(-5deg) scale(1.05); }
    50% { transform: rotate(5deg) scale(1.1); }
}

/* Happy eyes - ^_^ style */
.mascot-wrapper.happy .eye {
    height: 8px !important;
    border-radius: 20px 20px 0 0;
    background: var(--pupil-dark);
}

.mascot-wrapper.happy .pupil {
    display: none;
}

/* Happy mouth */
.mascot-wrapper.happy .cat-mouth,
.mascot-wrapper.happy .dog-mouth,
.mascot-wrapper.happy .hamster-mouth {
    width: 30px;
    height: 15px;
    background: #FF6B6B;
    border-radius: 0 0 50% 50%;
    border: none;
}

.mascot-wrapper.happy .blush {
    opacity: 1;
}

.mascot-wrapper.happy .expression-arms {
    opacity: 1;
}

.mascot-wrapper.happy .expr-arm.left {
    animation: arm-wave-up-left 0.3s ease-in-out infinite;
}

.mascot-wrapper.happy .expr-arm.right {
    animation: arm-wave-up-right 0.3s ease-in-out infinite;
}

@keyframes arm-wave-up-left {
    0%, 100% { transform: rotate(-60deg); }
    50% { transform: rotate(-80deg); }
}

@keyframes arm-wave-up-right {
    0%, 100% { transform: rotate(60deg); }
    50% { transform: rotate(80deg); }
}

/* Dog tail wags faster when happy */
.mascot-wrapper.happy.dog .tail {
    animation: tail-wag-fast 0.2s ease-in-out infinite;
}

@keyframes tail-wag-fast {
    0%, 100% { transform: rotate(-40deg); }
    50% { transform: rotate(40deg); }
}

/* Dog tongue out when happy */
.mascot-wrapper.happy.dog .tongue {
    opacity: 1;
}

/* --- Error State - ENHANCED --- */
.mascot-wrapper.error {
    animation: error-shake-wrapper 0.4s ease-in-out infinite;
}

@keyframes error-shake-wrapper {
    0%, 100% { transform: rotate(-8deg); }
    50% { transform: rotate(8deg); }
}

.mascot-wrapper.error .head-container {
    animation: error-shake 0.3s ease-in-out infinite;
}

@keyframes error-shake {
    0%, 100% { transform: translateX(0) rotate(0deg); }
    20%, 60% { transform: translateX(-8px) rotate(-10deg); }
    40%, 80% { transform: translateX(8px) rotate(10deg); }
}

/* Error body shake */
.mascot-wrapper.error .animal-body {
    animation: error-body-shake 0.3s ease-in-out infinite;
}

@keyframes error-body-shake {
    0%, 100% { transform: translateY(0); }
    25% { transform: translateY(-5px); }
    50% { transform: translateY(0); }
    75% { transform: translateY(-5px); }
}

/* Eyelids cover eyes when error */
.mascot-wrapper.error .eyelid.top {
    height: 100% !important;
    background: inherit;
    border-radius: 50%;
    animation: blink-覆盖 0.8s ease-in-out infinite;
}

@keyframes blink-覆盖 {
    0%, 40%, 100% { height: 100%; }
    20% { height: 50%; }
}

/* ===========================================
   Login Container
   =========================================== */
.login-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--background);
}

.login-box {
    width: 100%;
    max-width: 400px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 10px 40px var(--shadow);
    animation: slide-up 0.5s ease-out;
}

@keyframes slide-up {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--primary);
}

.input-group {
    margin-bottom: var(--spacing-md);
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.input-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    background: var(--surface);
    color: var(--text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.2);
}

/* Password Input */
.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper input {
    padding-right: 3rem;
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.password-toggle:hover { color: var(--primary); }
.password-toggle svg { width: 20px; height: 20px; }

/* Error Message */
.error-message {
    background: var(--error-light);
    color: var(--error);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    text-align: center;
    animation: shake 0.5s ease-out;
}

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

/* Login Button */
.login-btn {
    width: 100%;
    padding: 0.875rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(74, 144, 217, 0.4);
}

.login-hint {
    margin-top: var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: center;
}

/* ===========================================
   Dashboard Page Styles (unchanged)
   =========================================== */
#dashboard-page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--surface);
    box-shadow: 0 2px 10px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left { display: flex; align-items: center; gap: var(--spacing-md); }
.dashboard-title { font-size: 1.25rem; font-weight: 700; color: var(--primary); }
.header-right { display: flex; align-items: center; gap: var(--spacing-md); }

.language-selector select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    color: var(--text);
    font-size: 0.875rem;
    font-family: inherit;
    cursor: pointer;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--surface-elevated);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--primary);
    transform: rotate(30deg);
}

.theme-toggle:hover svg { color: white; }
.theme-toggle svg { width: 20px; height: 20px; color: var(--text); }

.logout-btn {
    padding: 0.5rem 1rem;
    background: var(--error);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
}

.logout-btn:hover { background: #C0392B; transform: translateY(-1px); }

.dashboard-main {
    flex: 1;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

@media (max-width: 768px) {
    .dashboard-main { grid-template-columns: 1fr; }
}

.categories-section, .tasks-section {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 20px var(--shadow);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border);
}

.section-header h2 { font-size: 1.125rem; font-weight: 600; color: var(--text); }

.add-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: var(--accent);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.add-btn:hover { background: var(--accent-hover); transform: scale(1.1); }
.add-btn svg { width: 18px; height: 18px; }

.category-list { list-style: none; margin-top: var(--spacing-sm); }

.category-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 0.5rem;
    background: var(--surface-elevated);
    transition: background-color var(--transition-fast);
}

.category-item:hover { background: var(--border); }
.category-item.active { background: var(--primary); color: white; }
.category-item.active .category-actions { color: white; }

.category-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    flex: 1;
}

.category-icon {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--secondary);
}

.category-name { font-size: 0.9rem; font-weight: 500; }

.category-count {
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: var(--border);
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-full);
}

.category-item.active .category-count {
    background: rgba(255,255,255,0.2);
    color: white;
}

.category-actions {
    display: flex;
    gap: 0.25rem;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.category-item:hover .category-actions { opacity: 1; }

.category-action-btn {
    width: 28px;
    height: 28px;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-action-btn:hover { background: var(--border); color: var(--text); }
.category-action-btn.delete:hover { background: var(--error); color: white; }
.category-action-btn svg { width: 16px; height: 16px; }

.task-controls { display: flex; align-items: center; gap: var(--spacing-sm); }

.category-filter {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    color: var(--text);
    font-size: 0.875rem;
    font-family: inherit;
    cursor: pointer;
}

.add-task-form {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.add-task-form input[type="text"] {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-family: inherit;
    background: var(--surface);
    color: var(--text);
}

.add-task-form input[type="text"]:focus { outline: none; border-color: var(--primary); }

.task-category-select {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-family: inherit;
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    min-width: 120px;
}

.add-task-btn {
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
}

.add-task-btn:hover { background: var(--accent-hover); }

.task-list { list-style: none; }

.task-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 0.5rem;
    background: var(--surface-elevated);
    animation: task-enter 0.3s ease-out;
}

@keyframes task-enter {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

.task-item.completed { opacity: 0.6; }
.task-item.completed .task-title { text-decoration: line-through; color: var(--text-secondary); }

.task-checkbox {
    width: 22px;
    height: 22px;
    border: 2px solid var(--border);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.task-checkbox:hover { border-color: var(--accent); }
.task-checkbox.checked { background: var(--accent); border-color: var(--accent); }
.task-checkbox.checked::after {
    content: '';
    width: 8px;
    height: 5px;
    border-left: 2px solid white;
    border-bottom: 2px solid white;
    transform: rotate(-45deg);
    margin-top: -2px;
}

.task-content { flex: 1; min-width: 0; }
.task-title { font-size: 0.95rem; font-weight: 500; color: var(--text); word-break: break-word; }

.task-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: 0.25rem;
}

.task-category-tag {
    font-size: 0.75rem;
    padding: 0.125rem 0.5rem;
    background: var(--primary);
    color: white;
    border-radius: var(--radius-full);
}

.task-date { font-size: 0.75rem; color: var(--text-secondary); }
.task-actions { display: flex; gap: 0.25rem; }

.task-action-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.task-action-btn:hover { background: var(--border); color: var(--text); }
.task-action-btn.delete:hover { background: var(--error); color: white; }
.task-action-btn svg { width: 18px; height: 18px; }

.empty-state { text-align: center; padding: var(--spacing-xl); color: var(--text-secondary); }
.empty-state svg { width: 64px; height: 64px; margin-bottom: var(--spacing-md); opacity: 0.5; }
.empty-state p { font-size: 0.9rem; }

/* Modal Styles */
.modal {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fade-in 0.2s ease-out;
}

@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

.modal-content {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    width: 90%;
    max-width: 400px;
    animation: modal-enter 0.3s ease-out;
}

@keyframes modal-enter {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.modal-header h3 { font-size: 1.125rem; font-weight: 600; color: var(--text); }

.modal-close {
    width: 32px; height: 32px;
    border: none; border-radius: 50%;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover { background: var(--border); }
.modal-actions { display: flex; justify-content: flex-end; gap: var(--spacing-sm); margin-top: var(--spacing-lg); }

.cancel-btn, .save-btn, .delete-btn {
    padding: 0.625rem 1.25rem;
    border: none; border-radius: var(--radius-md);
    font-size: 0.875rem; font-weight: 500;
    font-family: inherit;
    cursor: pointer;
}

.cancel-btn { background: var(--border); color: var(--text); }
.cancel-btn:hover { background: var(--text-secondary); color: white; }
.save-btn { background: var(--primary); color: white; }
.save-btn:hover { background: var(--primary-dark); }
.delete-btn { background: var(--error); color: white; }
.delete-btn:hover { background: #C0392B; }

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text);
    color: var(--background);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: 0 4px 20px var(--shadow-strong);
    z-index: 1100;
    animation: toast-enter 0.3s ease-out;
}

@keyframes toast-enter {
    from { opacity: 0; transform: translateX(-50%) translateY(20px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Responsive */
@media (max-width: 480px) {
    .login-box { padding: var(--spacing-lg); }
    .add-task-form { flex-wrap: wrap; }
    .add-task-form input[type="text"] { width: 100%; }
    .task-category-select { flex: 1; }
    .dashboard-header { flex-wrap: wrap; gap: var(--spacing-sm); }
    .header-right { width: 100%; justify-content: flex-end; }
    .mascot-stage { gap: 5px; }
    .mascot-wrapper.center { transform: scale(1); }
}