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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

/* Particle Canvas */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--purple-600);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--purple-500);
}

/* Links */
a {
    color: var(--blue-400);
    text-decoration: none;
    transition: color var(--transition-fast);
}
a:hover {
    color: var(--cyan-400);
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* Title Gradient */
.title-gradient {
    background: linear-gradient(135deg, var(--blue-400), var(--purple-400), var(--purple-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 3px;
}

/* Glass Panel */
.glass-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}
.glass-panel:hover {
    border-color: var(--blue-400);
    box-shadow: var(--shadow-blue);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--blue-500), var(--purple-500));
    color: #fff;
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--blue-400), var(--purple-400));
    transform: translateY(-2px);
}

.btn-glow {
    box-shadow: 0 0 15px var(--blue-glow), 0 0 30px var(--purple-glow);
}
.btn-glow:hover {
    box-shadow: 0 0 25px var(--blue-glow), 0 0 50px var(--purple-glow);
}

.btn-danger {
    background: linear-gradient(135deg, var(--red-600), var(--red-500));
    color: #fff;
}
.btn-danger:hover {
    background: linear-gradient(135deg, var(--red-500), var(--red-400));
    transform: translateY(-2px);
    box-shadow: var(--shadow-red);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
}
.btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--blue-400);
    background: rgba(74, 158, 255, 0.1);
}

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 4px;
    transition: transform var(--transition-fast);
}
.btn-icon:hover {
    transform: scale(1.2);
}

/* Form Elements */
.form-group {
    margin-bottom: 16px;
}
.form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue-400);
    box-shadow: 0 0 0 3px var(--blue-glow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

/* Highlight Colors */
.highlight-red { color: var(--red-400); font-weight: 600; }
.highlight-blue { color: var(--blue-400); font-weight: 600; }
.highlight-gold {
    color: var(--gold-400);
    font-weight: 600;
    background: rgba(251, 191, 36, 0.15);
    padding: 2px 8px;
    border-radius: 4px;
}
.highlight-green { color: var(--green-400); font-weight: 600; }
.highlight-purple { color: var(--purple-400); font-weight: 600; }
.highlight-orange { color: var(--orange-400); font-weight: 600; }

/* Tabs */
.tab-btn {
    padding: 8px 20px;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}
.tab-btn:hover {
    color: var(--text-primary);
    border-color: var(--blue-400);
}
.tab-btn.active {
    background: linear-gradient(135deg, var(--blue-500), var(--purple-500));
    color: #fff;
    border-color: transparent;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    animation: fadeIn 0.3s ease;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-xl);
    padding: 32px;
    max-width: 480px;
    width: 90%;
    box-shadow: var(--shadow-blue);
    animation: scaleIn 0.3s ease;
    text-align: center;
}

.modal h2 {
    font-size: 1.4rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.modal p {
    color: var(--text-secondary);
    margin-bottom: 12px;
}

/* Sync Modal */
.sync-modal .sync-icon {
    font-size: 3rem;
    margin-bottom: 12px;
}
.sync-modal .sync-question {
    font-size: 1.1rem;
    color: var(--gold-400);
    margin: 20px 0;
}
.sync-modal .btn-primary {
    width: 100%;
    padding: 14px;
    font-size: 1.1rem;
    margin-bottom: 8px;
}

/* Level Up Modal */
.levelup-modal {
    border-color: var(--gold-400);
    box-shadow: var(--shadow-gold), 0 0 60px rgba(251, 191, 36, 0.2);
}
.levelup-modal .levelup-icon {
    font-size: 4rem;
    animation: pulse 1s ease infinite;
}
.levelup-modal h2 {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--gold-300), var(--gold-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.rank-up-text {
    font-size: 1.2rem;
    color: var(--purple-400) !important;
    font-weight: 700;
}

/* Reward Modal */
.reward-details, .penalty-details {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin: 20px 0;
}
.reward-item, .penalty-item {
    padding: 16px 24px;
    border-radius: var(--radius-md);
    text-align: center;
}
.xp-reward { background: rgba(74, 158, 255, 0.15); border: 1px solid var(--border-glow); }
.gold-reward { background: rgba(251, 191, 36, 0.15); border: 1px solid var(--border-gold); }
.penalty-item { background: rgba(239, 68, 68, 0.15); border: 1px solid var(--border-red); }

.reward-label, .penalty-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}
.reward-value { font-size: 1.5rem; font-weight: 700; color: var(--green-400); }
.penalty-value { font-size: 1.5rem; font-weight: 700; color: var(--red-400); }

/* Penalty Modal */
.penalty-modal {
    border-color: var(--red-500);
    box-shadow: var(--shadow-red);
}
.penalty-modal .penalty-icon {
    font-size: 3rem;
    animation: shake 0.5s ease;
}
.penalty-modal h2 {
    color: var(--red-400);
}

/* Toast */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.toast {
    padding: 14px 24px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    animation: slideInRight 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
    box-shadow: var(--shadow-card);
    max-width: 350px;
}
.toast-success {
    background: rgba(34, 197, 94, 0.2);
    border: 1px solid var(--green-500);
    color: var(--green-400);
}
.toast-error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid var(--red-500);
    color: var(--red-400);
}
.toast-info {
    background: rgba(74, 158, 255, 0.2);
    border: 1px solid var(--blue-500);
    color: var(--blue-400);
}
.toast-gold {
    background: rgba(251, 191, 36, 0.2);
    border: 1px solid var(--gold-500);
    color: var(--gold-400);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}
@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}
@keyframes glow-pulse {
    0%, 100% { box-shadow: 0 0 5px var(--blue-glow); }
    50% { box-shadow: 0 0 20px var(--blue-glow), 0 0 40px var(--purple-glow); }
}
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
@keyframes energyFlow {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}