:root {
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    --text-color: #f8fafc;
    --primary: #8b5cf6;
    --primary-hover: #7c3aed;
    --card-bg: rgba(30, 41, 59, 0.6);
    --card-border: rgba(148, 163, 184, 0.15);
    --win-color: #10b981;
    --win-bg: rgba(16, 185, 129, 0.15);
    --lose-color: #64748b;
    --font: 'Outfit', sans-serif;
}

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

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

h1, h2, h3 {
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.main-header h1 {
    font-size: 3rem;
    background: linear-gradient(to right, #a855f7, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.main-header p {
    color: #cbd5e1;
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

button {
    background: linear-gradient(135deg, var(--primary), #a855f7);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
}

button:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
}

button:active {
    transform: translateY(1px);
}

button.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    box-shadow: none;
    border: 1px solid var(--card-border);
}

button.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

input, select {
    background-color: rgba(15, 23, 42, 0.8);
    color: white;
    border: 1px solid var(--card-border);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-family: var(--font);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus, select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.3);
}

.hidden {
    display: none !important;
}

.view {
    padding: 2rem 4rem;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.glass-panel {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Dashboard */
.controls {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    align-items: center;
}

#new-bracket-name {
    flex-grow: 1;
    min-width: 250px;
}

.grid-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    overflow-y: auto;
    padding-bottom: 2rem;
}

.bracket-card {
    background: var(--card-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.5rem;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s, border-color 0.3s;
    position: relative;
    overflow: hidden;
}

.bracket-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 4px;
    background: linear-gradient(90deg, #8b5cf6, #ec4899);
    opacity: 0;
    transition: opacity 0.3s;
}

.bracket-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    border-color: rgba(139, 92, 246, 0.5);
}

.bracket-card:hover::before {
    opacity: 1;
}

.bracket-card .delete-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: transparent;
    color: #ef4444;
    padding: 0.4rem;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: none;
    opacity: 0.6;
}

.bracket-card .delete-btn:hover {
    background: rgba(239, 68, 68, 0.15);
    opacity: 1;
}

/* Bracket View */
.bracket-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
    padding: 1rem 1.5rem;
}

.bracket-header h1 {
    margin: 0;
    font-size: 1.8rem;
}

.spacer {
    flex-grow: 1;
}

#bracket-container {
    flex-grow: 1;
    overflow: auto;
    padding: 2rem;
    /* Custom scrollbar */
}

.bracket-scroll-area {
    display: flex;
    gap: 3.5rem;
    align-items: stretch;
}

#bracket-container::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
#bracket-container::-webkit-scrollbar-track {
    background: rgba(0,0,0,0.1); 
    border-radius: 4px;
}
#bracket-container::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.3); 
    border-radius: 4px;
}
#bracket-container::-webkit-scrollbar-thumb:hover {
    background: rgba(148, 163, 184, 0.5); 
}

.round {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    gap: 1.5rem;
    min-width: 240px;
    position: relative;
}

.match {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    transition: transform 0.2s, box-shadow 0.2s;
    flex-shrink: 0;
}

.match:hover {
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

.match-player {
    padding: 0.8rem 1rem;
    display: flex;
    align-items: center;
    cursor: pointer;
    border-bottom: 1px solid var(--card-border);
    transition: background-color 0.2s, color 0.2s;
    font-weight: 500;
    min-height: 3.5rem;
}

.match-player:last-child {
    border-bottom: none;
}

.match-player:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

.match-player input {
    background: transparent;
    border: none;
    padding: 0;
    margin: 0;
    width: 100%;
    font-size: 1rem;
    font-weight: inherit;
    color: inherit;
    box-shadow: none;
}

.match-player input::placeholder {
    color: rgba(255,255,255,0.3);
    font-weight: 300;
}

.match-player input:focus {
    box-shadow: none;
    outline: none;
}

.match-player.winner {
    background-color: var(--win-bg);
    color: var(--win-color);
    font-weight: 700;
    border-left: 4px solid var(--win-color);
}

.match-player.loser {
    opacity: 0.4;
    text-decoration: line-through;
}

.empty-slot {
    color: rgba(255,255,255,0.2);
    font-style: italic;
}

/* Connection Lines */
.round:not(:last-child) .match::after {
    content: '';
    position: absolute;
    right: -1.75rem;
    top: 50%;
    width: 1.75rem;
    height: 2px;
    background-color: var(--card-border);
    z-index: -1;
}

.win-btn {
    background: rgba(255,255,255,0.1);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0.2;
    transition: opacity 0.2s, background 0.2s, transform 0.1s;
    padding: 0;
    margin-left: 0.5rem;
    flex-shrink: 0;
    box-shadow: none;
    font-size: 1rem;
}
.match-player:hover .win-btn {
    opacity: 1;
}
.win-btn:hover {
    background: var(--primary);
    transform: scale(1.1);
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.5);
}
.match-player.winner .win-btn {
    opacity: 1;
    background: var(--win-color);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}
.match-player.loser .win-btn {
    display: none;
}

/* Animation Overlay */
#animation-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

#animation-text {
    font-size: 6rem;
    font-weight: 900;
    background: linear-gradient(to bottom right, #facc15, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-align: center;
    text-shadow: 0 10px 30px rgba(245, 158, 11, 0.3);
    transform: scale(0);
}

.animate-pop {
    animation: popIn 1.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes popIn {
    0% { transform: scale(0) rotate(-10deg); opacity: 0; }
    40% { transform: scale(1.1) rotate(5deg); opacity: 1; }
    60% { transform: scale(0.95) rotate(-2deg); opacity: 1; }
    80% { transform: scale(1) rotate(0deg); opacity: 1; }
    100% { transform: scale(1) rotate(0deg); opacity: 0; }
}