:root {
    --bg-color: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.5);
    --card-bg: rgba(30, 41, 59, 0.7);
    --card-border: rgba(255, 255, 255, 0.1);
    
    --survivor-color: #06b6d4; /* Teal */
    --survivor-glow: rgba(6, 182, 212, 0.35);
    --killer-color: #f43f5e; /* Rose / Red */
    --killer-glow: rgba(244, 63, 94, 0.35);
}

body {
    margin: 0;
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(168, 85, 247, 0.15) 0px, transparent 50%);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1.5rem;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    display: flex;
    justify-content: center;
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
    width: 100%;
    max-width: 600px;
}

.tabs-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: nowrap;
}

.app-version {
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    padding: 0.3rem 0.7rem;
    border-radius: 12px;
    font-weight: 600;
    opacity: 0.6;
    white-space: nowrap;
}

.game-version {
    font-size: 0.8rem;
    color: var(--accent);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    padding: 0.3rem 0.7rem;
    border-radius: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.tabs {
    display: flex;
    background: rgba(255, 255, 255, 0.03);
    padding: 0.3rem;
    border-radius: 30px;
    border: 1px solid var(--card-border);
    flex-wrap: nowrap;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.6rem 1.1rem;
    border-radius: 20px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.25s ease;
    white-space: nowrap;
}

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

.tab-btn.active {
    background: var(--accent);
    color: var(--text-primary);
    box-shadow: 0 0 12px var(--accent-glow);
}

.search-container {
    position: relative;
    width: 100%;
}

.search-container input {
    width: 100%;
    padding: 1rem 3rem 1rem 1.5rem;
    border-radius: 50px;
    border: 1px solid var(--card-border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 1.1rem;
    font-family: inherit;
    outline: none;
    transition: all 0.3s ease;
    box-sizing: border-box;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.search-container input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow);
    background: rgba(255, 255, 255, 0.1);
}

.search-container input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.clear-search {
    position: absolute;
    right: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    opacity: 0.5;
    transition: opacity 0.2s ease, color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.clear-search.hidden {
    display: none;
}

.clear-search:hover {
    opacity: 1;
    color: #ef4444;
}

main {
    width: 100%;
    max-width: 100%;
    margin: 2rem auto;
    padding: 0 1.5rem 4rem 1.5rem;
    box-sizing: border-box;
}

.view-content {
    width: 100%;
    box-sizing: border-box;
    animation: fadeIn 0.4s ease forwards;
}

.view-content.hidden {
    display: none;
}

.list-container {
    width: 100%;
    display: block;
    column-width: 340px;
    column-gap: 1.5rem;
    box-sizing: border-box;
}

.perk-item {
    break-inside: avoid;
    display: inline-block;
    width: 100%;
    margin-bottom: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    animation: fadeIn 0.4s ease forwards;
    opacity: 0;
    box-sizing: border-box;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.perk-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.2);
}

.perk-item h2 {
    margin: 0 0 1rem 0;
    font-size: 1.4rem;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.perk-item h2::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    margin-right: 12px;
    box-shadow: 0 0 8px var(--accent);
}

.returns-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.returns-list li {
    padding: 0.6rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.returns-list li:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    transform: translateX(4px);
}

.returns-list li::before {
    content: '↳';
    margin-right: 10px;
    color: var(--accent);
    opacity: 0.7;
    font-weight: 600;
}

.empty-returns {
    color: var(--text-secondary);
    font-style: italic;
    margin: 0;
    font-size: 0.95rem;
    opacity: 0.5;
}

/* About Section */
.about-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
}

.about-card h1 {
    font-size: 2rem;
    margin-top: 0;
    font-weight: 600;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-card h2 {
    font-size: 1.4rem;
    margin-top: 2rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 0.5rem;
}

.about-card p {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.about-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.about-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent);
    border: 1px solid rgba(59, 130, 246, 0.2);
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    min-width: 38px;
    box-sizing: border-box;
}

.step-desc {
    color: var(--text-secondary);
}

.step-desc strong {
    color: var(--text-primary);
}

.patch-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--card-border);
    flex-wrap: wrap;
    gap: 1rem;
}

.patch-badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.steam-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease, text-shadow 0.2s ease;
    display: flex;
    align-items: center;
}

.steam-link::after {
    content: ' ↗';
}

.steam-link:hover {
    color: var(--text-primary);
    text-shadow: 0 0 8px var(--accent-glow);
}

.error {
    color: #ef4444;
    text-align: center;
    padding: 2rem;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

footer {
    margin-top: auto;
    padding: 2rem 1.5rem;
    border-top: 1px solid var(--card-border);
    background: rgba(15, 23, 42, 0.4);
    display: flex;
    justify-content: center;
}

.footer-content {
    max-width: 800px;
    width: 100%;
    text-align: center;
}

.disclaimer {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
    opacity: 0.7;
}

.disclaimer a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.25s ease;
}

.disclaimer a:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

/* Build Planner */
.build-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

.build-container h1 {
    font-size: 2rem;
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.build-slots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.2rem;
    margin-bottom: 2rem;
}

.perk-slot {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    position: relative;
    transition: all 0.3s ease;
}

.perk-slot:hover {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.04);
}

.slot-number {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.slot-select-wrapper {
    position: relative;
    width: 100%;
}

.slot-search {
    width: 100%;
    padding: 0.6rem 0.8rem;
    border-radius: 8px;
    border: 1px solid var(--card-border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.slot-search:focus {
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 10px var(--accent-glow);
}

.slot-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    max-height: 200px;
    overflow-y: auto;
    background: #1e293b;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    z-index: 50;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
}

.slot-dropdown.hidden {
    display: none;
}

.dropdown-item {
    padding: 0.6rem 0.8rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: all 0.15s ease;
}

.dropdown-item:hover {
    background: var(--accent);
    color: var(--text-primary);
}

.clear-slot {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    opacity: 0.5;
    transition: opacity 0.2s ease, color 0.2s ease;
}

.clear-slot.hidden {
    display: none;
}

.clear-slot:hover {
    opacity: 1;
    color: #ef4444;
}

.build-analysis {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.build-analysis.empty {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
}

.build-analysis.success {
    border-color: #10b981;
    background: rgba(16, 185, 129, 0.05);
}

.build-analysis.warning {
    border-color: #f59e0b;
    background: rgba(245, 158, 11, 0.05);
}

.analysis-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-top: 0;
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.analysis-title.success {
    color: #10b981;
}

.analysis-title.warning {
    color: #f59e0b;
}

.analysis-details {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.analysis-details li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.analysis-details li::before {
    content: '•';
    color: var(--accent);
}

.analysis-details.warning li::before {
    color: #f59e0b;
}

.perk-name-badge {
    display: inline-block;
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.3);
    padding: 0.15rem 0.45rem;
    border-radius: 6px;
    font-weight: 600;
    white-space: nowrap;
    font-size: 0.9rem;
}

/* DR Details Info Grid */
.dr-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-top: 1.5rem;
    margin-bottom: 2.5rem;
}

.dr-info-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 1.25rem;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.dr-info-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(59, 130, 246, 0.4);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px -6px rgba(59, 130, 246, 0.15);
}

.dr-info-card h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: 0.025em;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.dr-info-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Role-Specific Styles */
.perk-item.survivor-perk {
    border-left: 4px solid var(--survivor-color);
}
.perk-item.survivor-perk:hover {
    border-color: var(--survivor-color);
    box-shadow: 0 10px 25px -5px var(--survivor-glow);
}
.perk-item.survivor-perk h2::before {
    background: var(--survivor-color);
    box-shadow: 0 0 8px var(--survivor-color);
}

.perk-item.killer-perk {
    border-left: 4px solid var(--killer-color);
}
.perk-item.killer-perk:hover {
    border-color: var(--killer-color);
    box-shadow: 0 10px 25px -5px var(--killer-glow);
}
.perk-item.killer-perk h2::before {
    background: var(--killer-color);
    box-shadow: 0 0 8px var(--killer-color);
}

.perk-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.perk-header h2 {
    margin: 0;
}

.role-badge {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.25rem 0.6rem;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.role-badge.survivor {
    background: rgba(6, 182, 212, 0.1);
    color: var(--survivor-color);
    border: 1px solid rgba(6, 182, 212, 0.2);
}
.role-badge.killer {
    background: rgba(244, 63, 94, 0.1);
    color: var(--killer-color);
    border: 1px solid rgba(244, 63, 94, 0.2);
}

.dropdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}
.dropdown-item.survivor-item:hover {
    background: rgba(6, 182, 212, 0.15);
    color: var(--survivor-color);
}
.dropdown-item.killer-item:hover {
    background: rgba(244, 63, 94, 0.15);
    color: var(--killer-color);
}

.role-badge-mini {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
}
.role-badge-mini.survivor {
    background: rgba(6, 182, 212, 0.2);
    color: var(--survivor-color);
}
.role-badge-mini.killer {
    background: rgba(244, 63, 94, 0.2);
    color: var(--killer-color);
}

.perk-slot.survivor-slot {
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: inset 0 0 12px rgba(6, 182, 212, 0.05);
}
.perk-slot.survivor-slot .slot-number {
    color: var(--survivor-color);
}
.perk-slot.survivor-slot .slot-search {
    border-color: rgba(6, 182, 212, 0.3);
}
.perk-slot.survivor-slot .slot-search:focus {
    border-color: var(--survivor-color);
    box-shadow: 0 0 10px var(--survivor-glow);
}

.perk-slot.killer-slot {
    border-color: rgba(244, 63, 94, 0.3);
    box-shadow: inset 0 0 12px rgba(244, 63, 94, 0.05);
}
.perk-slot.killer-slot .slot-number {
    color: var(--killer-color);
}
.perk-slot.killer-slot .slot-search {
    border-color: rgba(244, 63, 94, 0.3);
}
.perk-slot.killer-slot .slot-search:focus {
    border-color: var(--killer-color);
    box-shadow: 0 0 10px var(--killer-glow);
}

.perk-name-badge.survivor {
    background: rgba(6, 182, 212, 0.15);
    color: var(--survivor-color);
    border: 1px solid rgba(6, 182, 212, 0.3);
}
.perk-name-badge.killer {
    background: rgba(244, 63, 94, 0.15);
    color: var(--killer-color);
    border: 1px solid rgba(244, 63, 94, 0.3);
}