:root {
    --bg-color: #0d1117;
    --card-bg: rgba(22, 27, 34, 0.6);
    --border-color: rgba(48, 54, 61, 0.8);
    --text-main: #c9d1d9;
    --text-muted: #8b949e;
    --primary: #58a6ff;
    --primary-hover: #3182ce;
    --danger: #f85149;
    --warning: #d29922;
    --success: #2ea043;
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: radial-gradient(circle at top right, rgba(88, 166, 255, 0.1), transparent 40%),
                      radial-gradient(circle at bottom left, rgba(248, 81, 73, 0.05), transparent 40%);
}

.container {
    width: 100%;
    max-width: 800px;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s ease-out;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(90deg, #58a6ff, #a371f7);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-muted);
}

code {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: monospace;
}

/* Upload Zone */
.upload-zone {
    background: var(--card-bg);
    border: 2px dashed var(--border-color);
    border-radius: 16px;
    padding: 4rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.8s ease-out;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--primary);
    background: rgba(88, 166, 255, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(88, 166, 255, 0.1);
}

.upload-content svg {
    color: var(--primary);
    margin-bottom: 1rem;
}

.upload-content h3 {
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.upload-content p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

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

.btn-primary:active {
    transform: scale(0.98);
}

/* Utilities */
.hidden {
    display: none !important;
}

/* Loading */
#loading {
    text-align: center;
    padding: 3rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255,255,255,0.1);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

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

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

/* Results */
.summary-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.vulnerability-item {
    background: rgba(22, 27, 34, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: transform 0.2s;
}

.vulnerability-item:hover {
    transform: translateX(4px);
    border-color: rgba(255, 255, 255, 0.2);
}

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

.vuln-title {
    font-weight: 600;
    font-size: 1.1rem;
    color: #fff;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge.critical { background-color: rgba(248, 81, 73, 0.2); color: var(--danger); }
.badge.high { background-color: rgba(248, 81, 73, 0.15); color: #ff7b72; }
.badge.medium { background-color: rgba(210, 153, 34, 0.2); color: var(--warning); }
.badge.low { background-color: rgba(46, 160, 67, 0.2); color: var(--success); }

.vuln-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.vuln-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.vuln-meta strong {
    color: var(--text-main);
}

/* Ad Space & Paste Zone */
.ad-container {
    margin-bottom: 2rem;
    text-align: center;
    background: rgba(0, 0, 0, 0.2);
    border: 1px dashed rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 1rem;
    min-height: 90px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.ad-placeholder {
    color: var(--text-muted);
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.divider {
    text-align: center;
    margin: 2rem 0;
    position: relative;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color);
    z-index: 1;
}

.divider span {
    background: var(--bg-color);
    padding: 0 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 600;
    position: relative;
    z-index: 2;
}

.paste-zone textarea {
    width: 100%;
    height: 150px;
    background: rgba(22, 27, 34, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    color: var(--text-main);
    font-family: monospace;
    font-size: 0.9rem;
    resize: vertical;
    margin-bottom: 1rem;
    transition: border-color 0.2s;
}

.paste-zone textarea:focus {
    outline: none;
    border-color: var(--primary);
}

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    background: rgba(22, 27, 34, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.form-group input,
.form-group textarea,
.custom-select {
    background: rgba(13, 17, 23, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.75rem;
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s;
    width: 100%;
}

.form-group input:focus,
.form-group textarea:focus,
.custom-select:focus {
    outline: none;
    border-color: var(--primary);
}

/* Bundle Size Bars */
.bundle-bar-container {
    margin-bottom: 1rem;
    background: rgba(22, 27, 34, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    position: relative;
    overflow: hidden;
}

.bundle-bar-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 2;
}

.bundle-bar-name {
    font-weight: 600;
    color: var(--primary);
}

.bundle-bar-size {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.bundle-bar-fill {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), #a371f7);
    width: 0%;
    transition: width 1s ease-out;
}

/* Tabs Navigation */
.tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    background: rgba(22, 27, 34, 0.5);
    padding: 0.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.tab-category {
    width: 100%;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    margin: 1rem 0 0.5rem 0;
    padding-bottom: 0.3rem;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-weight: 700;
}

.tab-btn {
    background: transparent;
    color: var(--text-muted);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    font-size: 0.9rem;
}

.tab-btn:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    background: var(--primary) !important;
    color: #fff !important;
    box-shadow: 0 4px 12px rgba(88, 166, 255, 0.2);
    border-color: var(--primary);
}

/* Tab Button Category Overrides */
.tab-btn-danger { color: var(--danger); }
.tab-btn-danger.active {
    background: var(--danger) !important;
    color: #fff !important;
    box-shadow: 0 4px 12px rgba(248, 81, 73, 0.3);
}

.tab-btn-info { color: #4da6ff; }
.tab-btn-info.active {
    background: #4da6ff !important;
    color: #fff !important;
    box-shadow: 0 4px 12px rgba(77, 166, 255, 0.3);
}

.tab-btn-bold { font-weight: 700; }

.tab-btn-special {
    background: rgba(163, 113, 247, 0.1);
    border: 1px solid rgba(163, 113, 247, 0.3);
    color: #a371f7;
}
.tab-btn-special:hover {
    background: rgba(163, 113, 247, 0.2);
    color: #b38cf9;
}
.tab-btn-special.active {
    background: #a371f7 !important;
    color: #fff !important;
    box-shadow: 0 4px 12px rgba(163, 113, 247, 0.3);
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Disclaimers */
.disclaimer {
    background: rgba(210, 153, 34, 0.1);
    border-left: 4px solid var(--warning);
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-radius: 0 8px 8px 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.disclaimer strong {
    color: var(--warning);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: var(--border-color);
}
button:disabled:hover {
    background-color: var(--border-color);
    transform: none;

}

/* Cooldown & Notification Styles */
.cooldown-badge {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(163, 113, 247, 0.15);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(163, 113, 247, 0.3);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    color: #a371f7;
    font-weight: 600;
    font-size: 0.9rem;
    z-index: 9999;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    gap: 8px;
    animation: pulse-border 2s infinite;
}

.cooldown-badge::before {
    content: "";
    width: 8px;
    height: 8px;
    background: #a371f7;
    border-radius: 50%;
}

@keyframes pulse-border {
    0% { border-color: rgba(163, 113, 247, 0.3); }
    50% { border-color: rgba(163, 113, 247, 0.8); }
    100% { border-color: rgba(163, 113, 247, 0.3); }
}

#toast-container {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.toast-notification {
    background: rgba(13, 17, 23, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    color: white;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    animation: slide-up 0.3s ease-out;
}

.toast-notification.error {
    border-left: 4px solid #ff5f56;
}

.toast-notification.success {
    border-left: 4px solid #27c93f;
}

@keyframes slide-up {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.hidden { display: none !important; }