:root {
    --bg-dark: #06070a;
    --bg-deep: #0b0e14;
    --bg-card: rgba(20, 24, 33, 0.72);
    --bg-card-hi: rgba(32, 38, 51, 0.55);
    --bg-input: rgba(0, 0, 0, 0.35);
    --border-color: rgba(255, 255, 255, 0.10);
    --border-hover: rgba(0, 255, 120, 0.45);

    /* Neon Colors */
    --neon-green: #00ff66;
    --neon-blue: #22d3ee;
    --neon-purple: #a855f7;
    --accent-gradient: linear-gradient(135deg, #00ff88 0%, #22d3ee 58%, #4f8bff 100%);
    --glow-green: rgba(0, 255, 120, 0.35);
    
    /* Text */
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'Fira Code', monospace;
    
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    background-color: var(--bg-dark);
    background-image:
        radial-gradient(1100px 720px at 10% -12%, rgba(0, 255, 136, 0.12), transparent 58%),
        radial-gradient(1000px 820px at 112% 8%, rgba(34, 211, 238, 0.11), transparent 55%),
        radial-gradient(1000px 900px at 50% 118%, rgba(124, 58, 237, 0.12), transparent 60%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
    padding: 2rem;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Stunning Background Effects */
.background-effects {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: -1;
    overflow: hidden;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(110px);
    opacity: 0.22;
    animation: float 20s infinite ease-in-out alternate;
    transform: translateZ(0);
    will-change: transform;
}

.orb-1 { width: 600px; height: 600px; background: var(--neon-green); top: -200px; left: -100px; animation-delay: 0s; }
.orb-2 { width: 500px; height: 500px; background: var(--neon-blue); bottom: -100px; right: -200px; animation-delay: -5s; }
.orb-3 { width: 420px; height: 420px; background: var(--neon-purple); top: 40%; left: 40%; opacity: 0.16; animation-delay: -10s; }

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 30px) scale(1.1); }
}

/* Container & Typography */
.container {
    width: 100%;
    max-width: 900px;
    z-index: 10;
    position: relative;
}

.app-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo-text {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, var(--neon-green), var(--neon-blue));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.logo-icon {
    font-size: 2.8rem;
    color: var(--neon-green);
    text-shadow: 0 0 20px rgba(0, 255, 65, 0.4);
}

.subtitle {
    color: var(--text-secondary);
    font-weight: 300;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
    transition: var(--transition);
    transform: translateZ(0); /* Hardware accelerate */
    will-change: transform, box-shadow;
}

.glass-panel:hover {
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.6), 0 0 40px rgba(0, 255, 65, 0.05);
}

.hidden { display: none !important; }

/* Form Elements */
.scan-form { display: flex; flex-direction: column; gap: 2rem; }

.input-group {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
}

.target-input-group {
    transform: scale(1);
    transition: var(--transition);
}
.target-input-group:focus-within {
    transform: scale(1.02);
}

.input-icon {
    position: absolute;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.2rem;
    transition: var(--transition);
    z-index: 2;
}

.cyber-input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    padding: 1.2rem 1.5rem 1.2rem 3.5rem;
    border-radius: 16px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 1.1rem;
    outline: none;
    transition: var(--transition);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

.cyber-input::placeholder { color: var(--text-muted); }

.cyber-input:focus {
    border-color: var(--neon-green);
    background: rgba(0, 255, 65, 0.02);
}

.cyber-input:focus ~ .input-icon {
    color: var(--neon-green);
    text-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
}

.input-glow {
    position: absolute;
    inset: 0;
    border-radius: 16px;
    box-shadow: 0 0 20px rgba(0, 255, 65, 0);
    pointer-events: none;
    transition: var(--transition);
}
.cyber-input:focus ~ .input-glow {
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.15);
}

/* Sections */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.8rem;
    margin-bottom: 1.2rem;
}
.section-header.borderless { border-bottom: none; padding-bottom: 0; }

.section-header h2 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.module-count {
    font-size: 0.8rem;
    background: rgba(255,255,255,0.05);
    padding: 0.2rem 0.6rem;
    border-radius: 10px;
    color: var(--neon-blue);
}

/* Modules Grid */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.cyber-checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    group: module-label;
    padding: 10px;
    border-radius: 10px;
    background: rgba(255,255,255,0.02);
    border: 1px solid transparent;
    transition: var(--transition);
}

.cyber-checkbox-label:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.1);
}

.cyber-checkbox { display: none; }

.checkbox-box {
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-muted);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.checkbox-box::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--bg-dark);
    font-size: 10px;
    opacity: 0;
    transform: scale(0);
    transition: var(--transition);
}

.cyber-checkbox:checked + .checkbox-box {
    background: var(--neon-green);
    border-color: var(--neon-green);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.4);
}

.cyber-checkbox:checked + .checkbox-box::after {
    opacity: 1;
    transform: scale(1);
}

.checkbox-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.cyber-checkbox:checked ~ .checkbox-text {
    color: var(--text-primary);
    font-weight: 600;
}

/* Tooltip & Time Estimate */
.time-estimate-container {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    cursor: help;
    transition: var(--transition);
}
.time-estimate-container:hover { border-color: rgba(255,255,255,0.15); }

.eta-content { display: flex; align-items: center; gap: 10px; }
.eta-icon { color: var(--neon-blue); }
.eta-label { color: var(--text-secondary); font-size: 0.9rem; }
.eta-value { font-family: var(--font-mono); font-weight: bold; color: var(--neon-green); letter-spacing: 1px; }
.info-icon { color: var(--text-muted); transition: var(--transition); }
.time-estimate-container:hover .info-icon { color: var(--text-primary); }

.tooltip-content {
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: 12px;
    width: 250px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    z-index: 100;
}

.time-estimate-container:hover .tooltip-content {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.tooltip-content h4 { font-size: 0.8rem; text-transform: uppercase; color: var(--text-secondary); border-bottom: 1px solid var(--border-color); padding-bottom: 5px; margin-bottom: 10px; }
.phase-list { list-style: none; font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-muted); display:flex; flex-direction:column; gap:5px; }

/* Notifications */
.notif-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.small-input { padding: 0.9rem 1rem 0.9rem 2.8rem; font-size: 0.9rem; border-radius: 10px; }
.input-group.small .input-icon { left: 1rem; font-size: 1rem; }

/* Buttons & Actions */
.actions-section { margin-top: 1rem; display: flex; flex-direction: column; gap: 1.5rem; align-items: center; }

.inline-auth { background: transparent; padding: 0; border: none; }
.inline-auth:hover { background: transparent; }
.inline-auth .checkbox-box { border-color: var(--neon-blue); }
.inline-auth .cyber-checkbox:checked + .checkbox-box { background: var(--neon-blue); box-shadow: 0 0 10px rgba(0, 225, 255, 0.4); }

.cyber-button {
    background: rgba(0, 255, 65, 0.1);
    border: 1px solid var(--neon-green);
    color: var(--neon-green);
    font-family: var(--font-main);
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: 2px;
    padding: 1.2rem 3rem;
    border-radius: 16px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.1);
    width: 100%;
    max-width: 400px;
}

.cyber-button:hover {
    background: var(--neon-green);
    color: var(--bg-dark);
    box-shadow: 0 0 30px rgba(0, 255, 65, 0.4);
    transform: translateY(-2px);
}

.btn-content { position: relative; z-index: 2; display: flex; align-items: center; justify-content: center; gap: 10px; }

.btn-glare {
    position: absolute;
    top: 0; left: -100%; width: 50%; height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.3), transparent);
    transform: skewX(-25deg);
    animation: btn-glare 4s infinite;
}

@keyframes btn-glare {
    0% { left: -100%; }
    20% { left: 200%; }
    100% { left: 200%; }
}

/* Terminal & Progress Area */
.progress-area {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

.progress-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; font-family: var(--font-mono); font-size: 0.9rem; color: var(--text-secondary); }

.status-indicator { display: flex; align-items: center; gap: 10px; color: var(--neon-green); }
.spinner { width: 14px; height: 14px; border: 2px solid rgba(0,255,65,0.3); border-top-color: var(--neon-green); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.progress-track { width: 100%; height: 10px; background: rgba(0,0,0,0.5); border-radius: 5px; position: relative; overflow: hidden; margin-bottom: 1.5rem; border: 1px solid var(--border-color); }
.progress-fill { position: absolute; top: 0; left: 0; height: 100%; width: 0%; background: linear-gradient(90deg, var(--neon-blue), var(--neon-green)); border-radius: 5px; transition: width 0.3s ease; }
.progress-glow { position: absolute; top: 0; left: 0; height: 100%; width: 0%; box-shadow: 0 0 15px var(--neon-green); transition: width 0.3s ease; }

.terminal-container {
    background: #000;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.8);
}

.terminal-header { background: rgba(255,255,255,0.05); padding: 8px 15px; display: flex; align-items: center; gap: 15px; border-bottom: 1px solid var(--border-color); }
.term-dots { display: flex; gap: 6px; }
.term-dots span { width: 10px; height: 10px; border-radius: 50%; opacity: 0.7; }
.term-dots span:nth-child(1) { background: #ff5f56; }
.term-dots span:nth-child(2) { background: #ffbd2e; }
.term-dots span:nth-child(3) { background: #27c93f; }
.term-title { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }

.terminal-body { height: 160px; padding: 15px; overflow-y: auto; font-family: var(--font-mono); font-size: 0.85rem; display: flex; flex-direction: column; gap: 6px; }
.term-line { color: var(--text-muted); opacity: 0; animation: typeIn 0.3s forwards; }
.term-line.info { color: var(--neon-blue); }
.term-line.success { color: var(--neon-green); }
.term-line.warning { color: #ffbd2e; }
.term-line.error { color: #ff5f56; }
.timestamp::before { content: '[' attr(data-time) '] '; color: rgba(255,255,255,0.3); }

@keyframes typeIn { from { opacity: 0; transform: translateX(-5px); } to { opacity: 1; transform: translateX(0); } }

.app-footer { text-align: center; margin-top: 2rem; color: var(--text-muted); font-size: 0.85rem; }
.version { font-family: var(--font-mono); opacity: 0.5; margin-left: 10px; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,0.1); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

@media (max-width: 768px) {
    .modules-grid { grid-template-columns: 1fr 1fr; }
    .notif-grid { grid-template-columns: 1fr; }
}

/* ───────────────────────────────────────────────────────────
   UI refresh — richer depth & gradient accents (dark theme kept)
   ─────────────────────────────────────────────────────────── */

.subtitle { color: #b6c2d6; }

/* Logo: tri-colour gradient + soft glow */
.logo-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 2px 22px rgba(0, 255, 136, 0.25));
}

/* Glass panel: gentle top highlight, glowing accent edge, deeper shadow */
.glass-panel {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0) 140px),
        var(--bg-card);
    box-shadow:
        0 25px 60px -20px rgba(0, 0, 0, 0.75),
        0 1px 0 rgba(255, 255, 255, 0.06) inset,
        0 0 0 1px rgba(255, 255, 255, 0.04) inset;
}
.glass-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    border-radius: 24px 24px 0 0;
    background: var(--accent-gradient);
    opacity: 0.85;
}
.glass-panel:hover {
    border-color: rgba(255, 255, 255, 0.14);
    box-shadow:
        0 30px 70px -20px rgba(0, 0, 0, 0.8),
        0 0 55px -12px var(--glow-green);
}

/* Inputs: a touch lighter, clear focus glow */
.cyber-input {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.09);
}
.cyber-input:focus {
    background: rgba(0, 255, 120, 0.04);
    box-shadow: 0 0 0 1px rgba(0, 255, 120, 0.35), 0 0 26px -6px var(--glow-green);
}

/* Module cards: subtle surface, lift on hover, accent when selected */
.cyber-checkbox-label {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
    border: 1px solid rgba(255, 255, 255, 0.06);
}
.cyber-checkbox-label:hover {
    transform: translateY(-2px);
    border-color: rgba(0, 255, 120, 0.28);
    box-shadow: 0 10px 22px -12px rgba(0, 0, 0, 0.7);
}
label.cyber-checkbox-label:has(.cyber-checkbox:checked) {
    border-color: rgba(0, 255, 120, 0.35);
    background: linear-gradient(180deg, rgba(0, 255, 120, 0.09), rgba(0, 255, 120, 0.02));
}
.cyber-checkbox:checked ~ .checkbox-text { color: #eafff2; }

.module-count {
    background: rgba(34, 211, 238, 0.12);
    border: 1px solid rgba(34, 211, 238, 0.25);
    color: var(--neon-blue);
}

/* Primary action button: gradient fill with glow */
.cyber-button {
    background: var(--accent-gradient);
    border: none;
    color: #04120b;
    box-shadow: 0 12px 32px -10px var(--glow-green), 0 0 0 1px rgba(255, 255, 255, 0.08) inset;
}
.cyber-button:hover {
    color: #04120b;
    filter: brightness(1.08);
    transform: translateY(-3px);
    box-shadow: 0 18px 44px -10px var(--glow-green), 0 0 0 1px rgba(255, 255, 255, 0.12) inset;
}

/* Progress bar: brighter track fill */
.progress-fill { background: var(--accent-gradient); }