/* ============================================================
   WORDNIKUNJA - MAIN STYLESHEET
   ============================================================ */

/* ============================================================
   CSS VARIABLES
   ============================================================ */

:root {
    /* Primary Colors */
    --color-cream: #F4F0E4;
    --color-sky-blue: #7AAACE;
    --color-steel-blue: #537D96;
    --color-dark-blue: #355872;
    
    /* Derived Colors */
    --color-dark-bg: #1A2A35;
    --color-dark-card: #243442;
    --color-dark-border: #2D4050;
    
    /* Semantic Colors */
    --color-success: #28a745;
    --color-danger: #dc3545;
    --color-warning: #ffc107;
    --color-info: #17a2b8;
    
    /* Light Theme (default) */
    --bg-primary: var(--color-cream);
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --text-primary: var(--color-dark-blue);
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --border-color: #dee2e6;
    --shadow-color: rgba(53, 88, 114, 0.1);
    
    --accent-primary: var(--color-steel-blue);
    --accent-secondary: var(--color-dark-blue);
    --accent-highlight: var(--color-sky-blue);
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-mono: 'Roboto Mono', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Z-index layers */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-toast: 400;
    --z-loading: 500;
    
    /* Header height */
    --header-height: 60px;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: var(--color-dark-bg);
    --bg-secondary: var(--color-dark-card);
    --bg-card: var(--color-dark-card);
    --text-primary: var(--color-cream);
    --text-secondary: #b0bec5;
    --text-muted: #78909c;
    --border-color: var(--color-dark-border);
    --shadow-color: rgba(0, 0, 0, 0.3);
    
    --accent-primary: var(--color-sky-blue);
    --accent-secondary: var(--color-steel-blue);
    --accent-highlight: var(--color-cream);
}

/* ============================================================
   RESET & BASE
   ============================================================ */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

ul,
ol {
    list-style: none;
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--accent-secondary);
    transform: translateY(-1px);
}

.btn-outline-primary {
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--accent-primary);
    color: white;
}

.btn-outline-secondary {
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    background: transparent;
}

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

.btn-danger {
    background: var(--color-danger);
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-outline-danger {
    border: 2px solid var(--color-danger);
    color: var(--color-danger);
    background: transparent;
}

.btn-outline-danger:hover {
    background: var(--color-danger);
    color: white;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ============================================================
   FORMS
   ============================================================ */

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(122, 170, 206, 0.2);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

@media (max-width: 576px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

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

.form-error {
    color: var(--color-danger);
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
    display: none;
}

.form-error:not(:empty) {
    display: block;
}

.form-success {
    color: var(--color-success);
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
    display: none;
}

.form-success:not(:empty) {
    display: block;
}

.password-input {
    position: relative;
}

.password-input .form-control {
    padding-right: 45px;
}

.password-toggle {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    padding: 5px;
}

.password-toggle:hover {
    color: var(--text-primary);
}

.input-with-prefix {
    position: relative;
}

.input-with-prefix .input-prefix {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-weight: 500;
}

.input-with-prefix .form-control {
    padding-left: 30px;
}

.password-strength {
    margin-top: var(--spacing-xs);
}

.password-strength .strength-bar {
    height: 4px;
    background: var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.password-strength .strength-bar::after {
    content: '';
    display: block;
    height: 100%;
    width: 0%;
    transition: all var(--transition-fast);
}

.password-strength.weak .strength-bar::after {
    width: 25%;
    background: var(--color-danger);
}

.password-strength.medium .strength-bar::after {
    width: 50%;
    background: var(--color-warning);
}

.password-strength.strong .strength-bar::after {
    width: 75%;
    background: var(--color-info);
}

.password-strength.very-strong .strength-bar::after {
    width: 100%;
    background: var(--color-success);
}

.password-strength .strength-text {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.password-requirements {
    background: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.password-requirements p {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.password-requirements ul {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xs);
}

.password-requirements li {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.password-requirements li i {
    font-size: 0.5rem;
}

.password-requirements li.valid {
    color: var(--color-success);
}

.password-requirements li.valid i::before {
    content: '\f00c';
}

/* ============================================================
   HEADER
   ============================================================ */

.main-header {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    z-index: var(--z-sticky);
    transition: all var(--transition-normal);
}

.header-content {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.logo-icon {
    color: var(--accent-primary);
    font-size: 1.5rem;
}

.logo-highlight {
    color: var(--accent-primary);
}

.main-nav {
    display: flex;
    gap: var(--spacing-xs);
}

.nav-tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-tab i {
    font-size: 1.1rem;
}

.nav-tab:hover {
    color: var(--accent-primary);
    background: rgba(122, 170, 206, 0.1);
}

.nav-tab.active {
    color: var(--accent-primary);
    background: rgba(122, 170, 206, 0.15);
}

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

.user-avatar-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 2px solid var(--accent-primary);
    padding: 0;
}

.user-avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Mobile Header */
@media (max-width: 576px) {
    .logo-text {
        display: none;
    }
    
    .nav-tab span {
        display: none;
    }
    
    .nav-tab {
        padding: var(--spacing-sm);
    }
    
    .nav-tab i {
        font-size: 1.25rem;
    }
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */

.main-content {
    min-height: calc(100vh - var(--header-height) - 200px);
    padding: var(--spacing-lg) 0;
}

.tab-content {
    display: none;
    animation: fadeIn var(--transition-normal);
}

.tab-content.active {
    display: block;
}

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

/* ============================================================
   GAME TAB
   ============================================================ */

.score-bar {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 2px 10px var(--shadow-color);
}

.score-item {
    text-align: center;
}

.score-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.score-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    font-family: var(--font-mono);
}

.streak-item {
    position: relative;
}

.streak-fire {
    position: absolute;
    top: -5px;
    right: -10px;
    color: #ff6b35;
    font-size: 0.875rem;
    opacity: 0;
    transition: all var(--transition-fast);
}

.streak-item.on-fire .streak-fire {
    opacity: 1;
    animation: flicker 0.5s infinite alternate;
}

@keyframes flicker {
    from { transform: scale(1); }
    to { transform: scale(1.2); }
}

.round-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--accent-primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    margin: 0 auto var(--spacing-lg);
    width: fit-content;
}

.round-badge.bonus {
    background: linear-gradient(135deg, #9b59b6, #8e44ad);
}

.round-badge.extra {
    background: linear-gradient(135deg, #f39c12, #e67e22);
}

.game-area {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: 0 4px 20px var(--shadow-color);
    max-width: 500px;
    margin: 0 auto;
}

/* Timer */
.timer-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.timer-bar {
    flex: 1;
    height: 8px;
    background: var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.timer-fill {
    height: 100%;
    background: var(--accent-primary);
    border-radius: var(--radius-full);
    transition: width 1s linear;
    width: 100%;
}

.timer-fill.warning {
    background: var(--color-warning);
}

.timer-fill.danger {
    background: var(--color-danger);
}

.timer-text {
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
    min-width: 30px;
    text-align: center;
}

.timer-text.warning {
    color: var(--color-warning);
}

.timer-text.danger {
    color: var(--color-danger);
    animation: pulse 0.5s infinite;
}

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

/* Word Display */
.word-display {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.word-letters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.letter-box {
    width: 50px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-mono);
    text-transform: uppercase;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.letter-box.missing {
    border-color: var(--accent-primary);
    background: rgba(122, 170, 206, 0.1);
    color: var(--accent-primary);
}

.letter-box.revealed {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
    animation: popIn 0.3s ease;
}

@keyframes popIn {
    0% { transform: scale(0.8); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* Hint */
.hint-container {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.hint-container i {
    color: var(--color-warning);
    margin-top: 2px;
}

.hint-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    flex: 1;
}

/* Tries */
.tries-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.tries-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.tries-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.try-dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background: var(--border-color);
    transition: all var(--transition-fast);
}

.try-dot.used {
    background: var(--color-danger);
}

/* Letter Input */
.input-container {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.letter-input {
    width: 80px;
    height: 80px;
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    text-align: center;
    text-transform: uppercase;
    border: 3px solid var(--accent-primary);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.letter-input:focus {
    outline: none;
    border-color: var(--accent-secondary);
    box-shadow: 0 0 0 4px rgba(122, 170, 206, 0.2);
}

.input-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

/* Guessed Letters */
.guessed-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.guessed-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.guessed-letters {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.guessed-letter {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    background: var(--border-color);
    color: var(--text-secondary);
}

.guessed-letter.correct {
    background: var(--color-success);
    color: white;
}

.guessed-letter.wrong {
    background: var(--color-danger);
    color: white;
}

/* Game Actions */
.game-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* ============================================================
   LEADERBOARD TAB
   ============================================================ */

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.section-header h2 i {
    color: var(--accent-primary);
}

.section-header p {
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

.user-rank-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--radius-lg);
    color: white;
    margin-bottom: var(--spacing-lg);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.rank-badge {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.rank-number {
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.rank-info {
    flex: 1;
}

.rank-label {
    display: block;
    font-size: 0.8rem;
    opacity: 0.8;
}

.rank-score {
    font-size: 1.25rem;
    font-weight: 700;
}

.leaderboard-container {
    max-width: 600px;
    margin: 0 auto;
}

.leaderboard-list {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 10px var(--shadow-color);
}

.leaderboard-entry {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.leaderboard-entry:last-child {
    border-bottom: none;
}

.leaderboard-entry:hover {
    background: var(--bg-primary);
}

.leaderboard-entry.top-1 {
    background: linear-gradient(90deg, rgba(255, 215, 0, 0.1), transparent);
}

.leaderboard-entry.top-2 {
    background: linear-gradient(90deg, rgba(192, 192, 192, 0.1), transparent);
}

.leaderboard-entry.top-3 {
    background: linear-gradient(90deg, rgba(205, 127, 50, 0.1), transparent);
}

.entry-rank {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.entry-rank.top-1 {
    color: #ffd700;
}

.entry-rank.top-2 {
    color: #c0c0c0;
}

.entry-rank.top-3 {
    color: #cd7f32;
}

.entry-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.entry-info {
    flex: 1;
    min-width: 0;
}

.entry-name {
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

.entry-score {
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--accent-primary);
}

.leaderboard-loading {
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--text-secondary);
}

.guest-message {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-lg);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.guest-message i {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
}

.guest-message p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* ============================================================
   PROFILE TAB
   ============================================================ */

.login-required {
    text-align: center;
    padding: var(--spacing-xxl);
}

.login-required-content i {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.login-required-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.login-required-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.login-required-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.profile-content {
    max-width: 600px;
    margin: 0 auto;
}

.profile-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 2px 10px var(--shadow-color);
}

.profile-avatar-container {
    position: relative;
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid var(--accent-primary);
}

.avatar-edit-btn {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 28px;
    height: 28px;
    background: var(--accent-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    transition: all var(--transition-fast);
}

.avatar-edit-btn:hover {
    background: var(--accent-secondary);
    transform: scale(1.1);
}

.profile-info {
    flex: 1;
}

.profile-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.profile-username {
    color: var(--accent-primary);
    font-size: 0.9rem;
}

.profile-email {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.email-badge {
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    background: var(--border-color);
    color: var(--text-muted);
}

.email-badge.verified {
    background: rgba(40, 167, 69, 0.1);
    color: var(--color-success);
}

/* Stats Section */
.stats-section,
.achievements-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 2px 10px var(--shadow-color);
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-title i {
    color: var(--accent-primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

@media (max-width: 576px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.stat-card {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    font-family: var(--font-mono);
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* Achievements Section */
.achievements-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.achievements-count {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.achievements-progress {
    margin-bottom: var(--spacing-md);
}

.progress {
    height: 8px;
    background: var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-highlight));
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.achievement-badge {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    font-size: 1.5rem;
    color: var(--text-muted);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.achievement-badge.unlocked {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-color: var(--accent-primary);
    color: white;
}

.achievement-badge:hover {
    transform: scale(1.1);
}

/* Profile Actions */
.profile-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}

/* ============================================================
   MODALS
   ============================================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    z-index: var(--z-modal);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 400px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn var(--transition-normal);
}

.modal-container.modal-lg {
    max-width: 500px;
}

.modal-container.modal-full-height {
    max-height: 85vh;
}

.modal-container.modal-danger .modal-header {
    background: var(--color-danger);
    color: white;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.modal-footer-links {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.modal-footer-links .divider {
    margin: 0 var(--spacing-sm);
    color: var(--text-muted);
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.guest-option {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/* Result Modal */
.modal-result .modal-body {
    text-align: center;
    padding: var(--spacing-xl);
}

.result-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.result-icon.success {
    background: rgba(40, 167, 69, 0.1);
    color: var(--color-success);
}

.result-icon.failure {
    background: rgba(220, 53, 69, 0.1);
    color: var(--color-danger);
}

.result-icon.timeout {
    background: rgba(255, 193, 7, 0.1);
    color: var(--color-warning);
}

.result-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.result-title.success {
    color: var(--color-success);
}

.result-title.failure {
    color: var(--color-danger);
}

.result-word-container {
    margin-bottom: var(--spacing-md);
}

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

.result-word {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 4px;
}

.result-meaning {
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: var(--spacing-lg);
}

.result-points {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-lg);
}

.points-value {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.result-ad {
    margin-bottom: var(--spacing-lg);
}

/* Achievement Modal */
.modal-achievement .modal-body {
    text-align: center;
    padding: var(--spacing-xl);
}

.achievement-unlock-animation {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-lg);
}

.achievement-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.3) 0%, transparent 70%);
    animation: glowPulse 2s infinite;
}

@keyframes glowPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
}

.achievement-badge-large {
    width: 100px;
    height: 100px;
    margin: 0 auto;
    background: linear-gradient(135deg, #ffd700, #ffb700);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    position: relative;
    z-index: 1;
    animation: badgePop 0.5s ease;
}

@keyframes badgePop {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.achievement-unlock-title {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.achievement-name {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.achievement-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.achievement-points {
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

/* Delete Account Warning */
.delete-warning {
    text-align: center;
    padding: var(--spacing-lg);
    background: rgba(220, 53, 69, 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.delete-warning i {
    font-size: 2.5rem;
    color: var(--color-danger);
    margin-bottom: var(--spacing-sm);
}

.delete-warning h4 {
    color: var(--color-danger);
    margin-bottom: var(--spacing-sm);
}

.delete-warning p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.delete-warning ul {
    text-align: left;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.delete-warning li {
    padding: var(--spacing-xs) 0;
}

.delete-warning li::before {
    content: '•';
    color: var(--color-danger);
    margin-right: var(--spacing-sm);
}

/* Guest Benefits */
.benefits-list {
    text-align: left;
    margin: var(--spacing-md) 0;
}

.benefits-list li {
    padding: var(--spacing-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.benefits-list li i {
    color: var(--color-success);
}

/* Avatar Modal */
.avatar-preview-container {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.avatar-preview {
    width: 150px;
    height: 150px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid var(--accent-primary);
    margin: 0 auto;
}

.avatar-upload {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.upload-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

/* Filter Buttons */
.achievements-filter {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.filter-btn.active {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.achievements-full-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--spacing-md);
}

.achievement-card {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
    transition: all var(--transition-fast);
    cursor: pointer;
}

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

.achievement-card.unlocked {
    border-color: var(--color-success);
    background: rgba(40, 167, 69, 0.05);
}

.achievement-card .badge-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto var(--spacing-sm);
    background: var(--border-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--text-muted);
}

.achievement-card.unlocked .badge-icon {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
}

.achievement-card .badge-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ============================================================
   FOOTER
   ============================================================ */

.main-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-brand {
    text-align: center;
}

.footer-logo {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-logo span {
    color: var(--accent-primary);
}

.footer-brand p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--accent-primary);
}

@media (max-width: 576px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* ============================================================
   ADS
   ============================================================ */

.ad-container {
    max-width: 728px;
    margin: 0 auto;
    padding: var(--spacing-sm);
}

.ad-placeholder {
    background: var(--bg-secondary);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* ============================================================
   LOADING & OFFLINE
   ============================================================ */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-loading);
}

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

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-content p {
    color: var(--text-secondary);
}

.offline-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-loading);
}

.offline-content {
    text-align: center;
    padding: var(--spacing-xl);
}

.offline-icon {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.offline-content h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.offline-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* ============================================================
   TOAST NOTIFICATIONS
   ============================================================ */

.toast-container {
    position: fixed;
    top: calc(var(--header-height) + var(--spacing-md));
    right: var(--spacing-md);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: 0 4px 20px var(--shadow-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 280px;
    max-width: 400px;
    animation: toastSlideIn var(--transition-normal);
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast.toast-success {
    border-left: 4px solid var(--color-success);
}

.toast.toast-error {
    border-left: 4px solid var(--color-danger);
}

.toast.toast-warning {
    border-left: 4px solid var(--color-warning);
}

.toast.toast-info {
    border-left: 4px solid var(--color-info);
}

.toast-icon {
    font-size: 1.25rem;
}

.toast-success .toast-icon {
    color: var(--color-success);
}

.toast-error .toast-icon {
    color: var(--color-danger);
}

.toast-warning .toast-icon {
    color: var(--color-warning);
}

.toast-info .toast-icon {
    color: var(--color-info);
}

.toast-message {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.toast-close {
    color: var(--text-muted);
    padding: var(--spacing-xs);
}

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

/* ============================================================
   CONFETTI CANVAS
   ============================================================ */

#confetti-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: var(--z-modal);
}

/* ============================================================
   TURNSTILE
   ============================================================ */

.cf-turnstile {
    margin: var(--spacing-md) 0;
}

/* ============================================================
   RESPONSIVE ADJUSTMENTS
   ============================================================ */

@media (max-width: 768px) {
    :root {
        --header-height: 56px;
    }
    
    .game-area {
        padding: var(--spacing-md);
    }
    
    .letter-box {
        width: 40px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .letter-input {
        width: 70px;
        height: 70px;
        font-size: 2rem;
    }
    
    .score-bar {
        gap: var(--spacing-md);
    }
    
    .score-value {
        font-size: 1.25rem;
    }
    
    .profile-header {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .main-content {
        padding: var(--spacing-md) 0;
    }
    
    .modal-container {
        margin: var(--spacing-sm);
        max-height: calc(100vh - var(--spacing-md));
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .password-requirements ul {
        grid-template-columns: 1fr;
    }
    
    .toast {
        min-width: auto;
        max-width: calc(100vw - var(--spacing-lg));
    }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */

@media print {
    .main-header,
    .main-footer,
    .ad-container,
    .modal-overlay,
    .toast-container,
    #confetti-canvas {
        display: none !important;
    }
}