/* Modern CSS Variables & Reset */
:root {
    --primary: #10b981;
    --primary-hover: #059669;
    --primary-glow: rgba(16, 185, 129, 0.35);
    
    --bg-dark: #0b0f19;
    --card-bg: rgba(23, 31, 48, 0.7);
    --card-border: rgba(255, 255, 255, 0.08);
    --card-hover-border: rgba(16, 185, 129, 0.4);
    
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-dim: #6b7280;
    
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --font-heading: 'Outfit', -apple-system, sans-serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

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

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

/* App Container */
.app-container {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
}

.brand { display: flex; align-items: center; gap: 12px; }
.badge {
    background: var(--primary);
    color: #fff;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    box-shadow: 0 0 12px var(--primary-glow);
}

.logo-text { font-family: var(--font-heading); font-size: 1.3rem; font-weight: 700; }
.accent-text { color: var(--primary); }

.nav-controls { display: flex; align-items: center; gap: 12px; }

.status-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    padding: 6px 14px;
    border-radius: 50px;
    border: 1px solid var(--card-border);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.status-dot { width: 8px; height: 8px; border-radius: 50%; }
.status-dot.green { background: var(--success); box-shadow: 0 0 8px var(--success); }
.status-dot.yellow { background: var(--warning); box-shadow: 0 0 8px var(--warning); }
.status-dot.red { background: var(--danger); box-shadow: 0 0 8px var(--danger); }

.tz-pill {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--primary);
    background: rgba(16, 185, 129, 0.1);
    padding: 6px 12px;
    border-radius: 50px;
    border: 1px solid var(--primary-glow);
}

.btn-icon {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
}

.btn-icon:hover { background: rgba(255, 255, 255, 0.15); border-color: var(--primary); }

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.7) 0%, rgba(15, 23, 42, 0.85) 100%);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 36px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.3);
}

.hero-badge {
    font-size: 0.85rem;
    color: var(--primary);
    background: rgba(16, 185, 129, 0.1);
    padding: 4px 12px;
    border-radius: 50px;
    border: 1px solid var(--primary-glow);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.hero-subtitle { color: var(--text-muted); font-size: 0.98rem; max-width: 600px; }

.code-tag {
    font-family: var(--font-mono);
    color: var(--primary);
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 6px;
    border-radius: 4px;
}

.hero-actions { display: flex; gap: 14px; margin-top: 8px; }

/* Grid Layout */
.content-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 24px;
    align-items: start;
}

@media (max-width: 880px) {
    .content-grid { grid-template-columns: 1fr; }
}

/* Glass Card */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }

.card-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-main);
}

.card-desc { color: var(--text-muted); font-size: 0.88rem; }

/* Form */
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); }

input[type="text"] {
    width: 100%;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}

input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 12px var(--primary-glow);
}

/* Buttons */
.btn {
    font-family: var(--font-body);
    font-size: 0.92rem;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-primary { background: var(--primary); color: #ffffff; box-shadow: 0 4px 16px var(--primary-glow); }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 6px 20px var(--primary-glow); }

.btn-secondary { background: rgba(255, 255, 255, 0.08); color: var(--text-main); border: 1px solid var(--card-border); }
.btn-secondary:hover { background: rgba(255, 255, 255, 0.18); }

.btn-outline { background: transparent; border: 1px solid var(--card-border); color: var(--text-main); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-block { width: 100%; }

.btn-sm {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 4px 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}
.btn-sm:hover { color: var(--text-main); background: rgba(255, 255, 255, 0.12); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }

/* Status Terminal Output */
.status-box {
    background: #070a12;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    padding: 14px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    max-height: 200px;
    overflow-y: auto;
    color: #e5e7eb;
    white-space: pre-wrap;
    line-height: 1.5;
}

.empty-status { color: var(--text-dim); text-align: center; padding: 20px 0; }

/* Timeline List */
.timeline-list { display: flex; flex-direction: column; gap: 16px; margin-top: 8px; }

.timeline-item {
    position: relative;
    padding-left: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-left: 2px solid rgba(255, 255, 255, 0.1);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -7px;
    top: 4px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 8px var(--primary);
}

.commit-card {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    transition: var(--transition);
}

.commit-card:hover {
    border-color: var(--primary);
    background: rgba(15, 23, 42, 0.8);
}

.commit-info { display: flex; flex-direction: column; gap: 4px; }

.commit-msg { font-weight: 700; font-size: 0.95rem; color: var(--text-main); }

.commit-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 10px;
}

.hash-badge {
    font-family: var(--font-mono);
    color: var(--primary);
    background: rgba(16, 185, 129, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.78rem;
    cursor: pointer;
}

.hash-badge:hover { background: rgba(16, 185, 129, 0.25); }

/* Modal */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.7); backdrop-filter: blur(8px);
    display: flex; align-items: center; justify-content: center;
    z-index: 100; opacity: 0; pointer-events: none; transition: var(--transition);
}

.modal-overlay.active { opacity: 1; pointer-events: auto; }

.modal-content { max-width: 440px; width: 90%; display: flex; flex-direction: column; gap: 14px; }

.modal-warn { font-size: 0.85rem; color: var(--warning); background: rgba(245, 158, 11, 0.1); padding: 8px 12px; border-radius: 6px; }

.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 6px; }

.loading-placeholder { text-align: center; padding: 40px; color: var(--text-muted); }

.spinner {
    width: 32px; height: 32px; border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--primary); border-radius: 50%;
    animation: spin 0.8s linear infinite; margin: 0 auto 12px auto;
}

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

/* Footer */
.footer { text-align: center; padding: 20px 0; color: var(--text-dim); font-size: 0.85rem; border-top: 1px solid var(--card-border); }