/* Theme: Princess + Chess + Rainbows */
:root {
    --bg-gradient: linear-gradient(135deg, #fef6ff 0%, #f0f4ff 100%);
    --primary: #d946ef;
    --primary-light: #f0abfc;
    --accent: #ec4899;
    --gold: #fbbf24;
    --gold-dark: #d97706;
    --chess-piece: #8b5cf6;
    --text: #1f2937;
    --text-light: #6b7280;
    --border: #e5e7eb;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-lg: rgba(0, 0, 0, 0.15);

    /* Rainbow gradient */
    --rainbow: linear-gradient(90deg,
        #ef4444 0%,
        #f97316 16.67%,
        #eab308 33.33%,
        #22c55e 50%,
        #3b82f6 66.67%,
        #a855f7 83.33%,
        #ec4899 100%);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-gradient);
    color: var(--text);
    min-height: 100vh;
    padding: 1rem;
    -webkit-font-smoothing: antialiased;
    touch-action: manipulation;
}

/* Connection Banner */
.banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--rainbow);
    color: white;
    text-align: center;
    padding: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    z-index: 1000;
    box-shadow: 0 2px 8px var(--shadow);
}

.banner.hidden {
    display: none;
}

/* Container */
.container {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    border-radius: 24px;
    padding: 1.5rem;
    box-shadow: 0 8px 32px var(--shadow-lg);
    border: 3px solid transparent;
    background-clip: padding-box;
    position: relative;
}

.container::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 24px;
    padding: 3px;
    background: var(--rainbow);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.header h1 {
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.3;
}

.crown-icon, .chess-icon {
    flex-shrink: 0;
}

/* Progress Section */
.progress-section {
    margin-bottom: 2rem;
}

.progress-text {
    text-align: center;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text);
}

#progress-count {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.5rem;
}

.progress-bar-container {
    position: relative;
    height: 24px;
    background: #f3f4f6;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: 12px;
    transition: width 0.5s ease;
    position: relative;
    z-index: 1;
}

.progress-rainbow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--rainbow);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.progress-bar-container.complete .progress-rainbow {
    opacity: 0.3;
}

/* Today Section */
.today-section {
    margin-bottom: 2rem;
}

.today-section h2 {
    font-size: 1.25rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text);
}

.toggle-buttons {
    display: flex;
    gap: 1rem;
}

.toggle-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem;
    background: white;
    border: 3px solid var(--border);
    border-radius: 16px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 88px;
    touch-action: manipulation;
}

.toggle-btn:active {
    transform: scale(0.95);
}

.toggle-btn .toggle-label {
    color: var(--text);
}

.toggle-btn .toggle-star {
    font-size: 2rem;
    opacity: 0.3;
    transition: all 0.3s ease;
}

.toggle-btn.active {
    border-color: var(--primary);
    background: linear-gradient(135deg, #fdf4ff 0%, #fae8ff 100%);
}

.toggle-btn.active .toggle-star {
    opacity: 1;
    transform: scale(1.2);
}

.toggle-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Star Grid */
.grid-section {
    margin-bottom: 2rem;
}

.star-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 8px;
}

.star-slot {
    aspect-ratio: 1;
    border: 2px dashed var(--border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fafafa;
    transition: all 0.3s ease;
    position: relative;
    min-height: 48px;
    touch-action: manipulation;
}

.star-slot.filled {
    background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
    border: 2px solid var(--gold);
    cursor: pointer;
}

.star-slot.filled:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(251, 191, 36, 0.3);
}

.star-slot.filled:active {
    transform: scale(0.95);
}

.star-icon {
    font-size: 1.75rem;
    animation: starAppear 0.5s ease;
}

@keyframes starAppear {
    0% {
        transform: scale(0) rotate(0deg);
        opacity: 0;
    }
    50% {
        transform: scale(1.3) rotate(180deg);
    }
    100% {
        transform: scale(1) rotate(360deg);
        opacity: 1;
    }
}

.star-slot.animate .star-icon {
    animation: starPulse 0.6s ease;
}

@keyframes starPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.4); }
}

/* Row Labels (optional, subtle) */
.star-slot:nth-child(6n + 1)::before {
    content: attr(data-row);
    position: absolute;
    left: -24px;
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 600;
}

/* Reset Section */
.reset-section {
    text-align: center;
}

.reset-btn {
    padding: 0.75rem 1.5rem;
    background: white;
    border: 2px solid var(--border);
    border-radius: 12px;
    color: var(--text-light);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.reset-btn:hover {
    border-color: #ef4444;
    color: #ef4444;
}

/* Modals */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
    backdrop-filter: blur(4px);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    max-width: 400px;
    width: 100%;
    box-shadow: 0 20px 60px var(--shadow-lg);
    animation: modalAppear 0.3s ease;
}

@keyframes modalAppear {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--text);
}

.modal-content p {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.modal-content input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 600;
}

.modal-content input:focus {
    outline: none;
    border-color: var(--primary);
}

.modal-buttons {
    display: flex;
    gap: 1rem;
}

.btn-primary, .btn-secondary, .btn-danger {
    flex: 1;
    padding: 0.875rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    touch-action: manipulation;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(217, 70, 239, 0.3);
}

.btn-secondary {
    background: #f3f4f6;
    color: var(--text);
}

.btn-secondary:hover {
    background: #e5e7eb;
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-danger:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Celebration Modal */
.modal-content.celebration {
    text-align: center;
    background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
    border: 4px solid var(--gold);
}

.modal-content.celebration h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    background: var(--rainbow);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-content.celebration p {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 1.5rem;
}

.sparkles {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    animation: sparkle 1.5s ease infinite;
}

@keyframes sparkle {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

/* Confetti Canvas */
#confetti-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
}

/* Responsive - Desktop */
@media (min-width: 768px) {
    body {
        padding: 2rem;
    }

    .container {
        padding: 2.5rem;
    }

    .header h1 {
        font-size: 2.5rem;
    }

    .star-grid {
        gap: 12px;
    }

    .star-slot {
        min-height: 64px;
    }

    .star-icon {
        font-size: 2.25rem;
    }

    .star-slot:nth-child(6n + 1)::before {
        left: -32px;
        font-size: 0.875rem;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}