:root {
    --bg-light: #FFFFFF;
    --bg-subtle: #FAFAFA;
    --primary: #FFCC00;
    /* Sophisticated Gold */
    --primary-dark: #E6B800;
    --primary-glow: rgba(255, 204, 0, 0.4);
    --secondary: #121212;
    /* Deep Black */
    --text-main: #0B0B0B;
    --text-muted: #626262;
    --card-bg: #FFFFFF;
    --card-border: rgba(0, 0, 0, 0.04);
    --transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --shadow-sm: 0 4px 10px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 20px 40px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 30px 60px rgba(0, 0, 0, 0.1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-light);
    color: var(--text-main);
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Luxury Grain Effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.02;
    pointer-events: none;
    z-index: 9999;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Cursor Glow Refinement */
.cursor-glow {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 204, 0, 0.12), transparent 70%);
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    filter: blur(20px);
}

/* Header */
header {
    height: 80px;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(25px);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
}

.logo {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -2px;
    color: var(--secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-v {
    background: var(--primary);
    color: var(--secondary);
    width: 45px;
    height: 45px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 12px;
    font-size: 1.8rem;
    box-shadow: 0 8px 20px var(--primary-glow);
}

nav.container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.nav-container {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 3.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--secondary);
}

.nav-links a:hover::after {
    width: 100%;
}

.btn-primary {
    background: var(--secondary);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 14px;
    border: none;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
    background: var(--primary);
    color: var(--secondary);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 30px var(--primary-glow);
}

/* Hero Section */
.hero {
    padding: 80px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, var(--primary-glow), transparent 70%);
    transform: translateX(-50%);
    z-index: -1;
    opacity: 0.5;
}

.badge {
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.05);
    color: var(--secondary);
    padding: 0.7rem 1.5rem;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 2.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
}

.badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 var(--primary-glow);
    }

    70% {
        transform: scale(1.1);
        box-shadow: 0 0 0 10px transparent;
    }

    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 transparent;
    }
}

.hero h1 {
    font-size: 6rem;
    font-weight: 900;
    line-height: 0.95;
    margin-bottom: 2.5rem;
    letter-spacing: -4px;
    color: var(--secondary);
}

.gradient-text {
    color: var(--primary);
    text-shadow: 2px 2px 0px var(--secondary);
    -webkit-text-stroke: 1px var(--secondary);
}

.hero p {
    font-size: 1.5rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 4rem;
    font-weight: 500;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.btn-outline {
    background: transparent;
    border: 2.5px solid var(--secondary);
    color: var(--secondary);
    padding: 1.2rem 3rem;
    border-radius: 14px;
    font-weight: 800;
    cursor: pointer;
    transition: var(--transition);
}

.btn-outline:hover {
    background: var(--secondary);
    color: white;
    transform: translateY(-3px);
}

/* Features Section */
.features-section {
    padding: 60px 0 100px;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
}

.feature-item {
    position: relative;
    padding: 3rem 2rem;
    border-radius: 32px;
    background: var(--bg-subtle);
    border: 1px solid var(--card-border);
    transition: var(--transition);
    overflow: hidden;
    opacity: 0;
    transform: translateY(40px);
}

.feature-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-item:hover {
    transform: translateY(-10px);
    background: white;
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.feature-num {
    font-size: 5rem;
    font-weight: 950;
    color: var(--secondary);
    opacity: 0.04;
    position: absolute;
    top: -10px;
    right: 10px;
    letter-spacing: -5px;
    pointer-events: none;
    transition: var(--transition);
}

.feature-item:hover .feature-num {
    opacity: 0.08;
    color: var(--primary);
}

.feature-item h3 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--secondary);
    margin-bottom: 1rem;
    position: relative;
}

.feature-item p {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 500;
    line-height: 1.6;
}

/* Tools Section */
.tools-section {
    padding: 140px 0;
    background: var(--bg-subtle);
    border-radius: 80px 80px 0 0;
    box-shadow: 0 -40px 100px rgba(0, 0, 0, 0.03);
}

.section-header h2 {
    font-size: 4rem;
    font-weight: 900;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
}

.search-bar {
    max-width: 600px;
    margin: 3rem auto 0;
    background: white;
    padding: 1rem 2rem;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 1.2rem;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.search-bar:focus-within {
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.search-bar i {
    color: var(--text-muted);
    font-size: 1.2rem;
}

.search-bar input {
    border: none;
    outline: none;
    width: 100%;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    background: transparent;
}

.mobile-toggle {
    display: none;
    background: var(--secondary);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1.3rem;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 3rem;
}

.tool-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 4rem 3rem;
    border-radius: 48px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: translateY(40px);
}

.tool-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.tool-card:hover {
    transform: translateY(-20px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.tool-icon {
    width: 90px;
    height: 90px;
    background: var(--secondary);
    color: var(--primary);
    border-radius: 28px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
    margin-bottom: 2.5rem;
    transition: var(--transition);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.tool-card:hover .tool-icon {
    background: var(--primary);
    color: var(--secondary);
    transform: rotate(-10deg) scale(1.1);
}

.tool-card h3 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--secondary);
}

.tool-card p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    font-weight: 500;
}

.btn-tool {
    background: #F4F4F4;
    color: var(--secondary);
    border: none;
    padding: 1rem 2rem;
    border-radius: 16px;
    font-weight: 800;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.tool-card:hover .btn-tool {
    background: var(--secondary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Modal Overlay */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(12px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    padding: 20px;
}

.close-modal {
    position: absolute;
    top: 2.5rem;
    right: 2.5rem;
    font-size: 2.5rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    z-index: 10;
    transition: var(--transition);
}

.close-modal:hover {
    color: var(--secondary);
    transform: rotate(90deg);
}

/* Modal Styling */
.modal {
    background: white;
    padding: 5rem 4rem;
    border-radius: 40px;
    border: none;
    box-shadow: 0 50px 150px rgba(0, 0, 0, 0.3);
    position: relative;
    width: 100%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.tool-ui h3 {
    font-size: 3rem;
    letter-spacing: -2px;
    margin-bottom: 3rem;
}

.input-group label {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--secondary);
    margin-bottom: 1rem;
}

.input-group input,
.input-group textarea,
.input-group select {
    background: #F9F9F9;
    border: 2px solid #F0F0F0;
    padding: 1.5rem;
    border-radius: 20px;
    font-weight: 600;
}

.input-group input:focus {
    border-color: var(--primary);
    background: white;
}

.result-area {
    background: var(--secondary);
    color: white;
    border: none;
    padding: 2.5rem;
    border-radius: 24px;
    font-family: 'Space Mono', monospace;
}

.copy-btn {
    background: var(--primary);
    color: var(--secondary);
    border: none;
    font-weight: 900;
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
}

/* Footer Re-design */
footer {
    background: var(--secondary);
    color: white;
    padding: 120px 0 60px;
}

footer .logo {
    color: white;
}

footer .nav-links a {
    color: #999;
}

footer .nav-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #666;
}

/* Standalone Tool Workspace Styling */
.tool-intro h3 {
    letter-spacing: -3px;
    font-weight: 900;
    line-height: 1;
}

.workspace-layout {
    margin-top: 2rem;
}

.metric-card {
    transition: var(--transition);
}

.metric-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.result-area code {
    display: block;
    word-break: break-all;
    font-size: 1.2rem;
    line-height: 1.5;
}

.copy-btn {
    margin-top: 2rem;
    width: 100%;
}

@media (max-width: 768px) {
    .workspace-layout {
        grid-template-columns: 1fr !important;
        gap: 2rem !important;
    }

    .tool-intro h3 {
        font-size: 2.5rem !important;
    }

    .standalone-tool-card {
        padding: 3rem 1.5rem !important;
        border-radius: 30px !important;
    }

    .input-side textarea,
    .input-block textarea {
        height: 200px !important;
    }

    .data-side {
        grid-template-columns: 1fr 1fr !important;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 3.5rem;
        letter-spacing: -2px;
    }

    .mobile-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .hero-btns {
        flex-direction: column;
        gap: 1rem;
    }

    .hero-btns .btn-primary,
    .hero-btns .btn-outline {
        width: 100%;
        padding: 1rem;
    }

    .nav-container {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 4rem 2rem;
        gap: 3rem;
        border-bottom: 1px solid var(--card-border);
        transform: translateY(-150%);
        transition: var(--transition);
        z-index: 999;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    }

    .nav-container.active {
        transform: translateY(0);
    }

    .logo {
        font-size: 1.5rem;
    }

    .nav-links {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .tool-card {
        padding: 2rem 1.5rem;
        border-radius: 24px;
        align-items: center;
        text-align: center;
    }

    .tool-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
        border-radius: 18px;
    }

    .tool-card h3 {
        font-size: 1.1rem;
        margin-bottom: 0.5rem;
    }

    .tool-card p {
        font-size: 0.85rem;
        margin-bottom: 1.5rem;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .btn-tool {
        padding: 0.7rem 1rem;
        font-size: 0.85rem;
        border-radius: 12px;
    }

    .section-header h2 {
        font-size: 2.5rem;
    }

    .search-bar {
        padding: 0.8rem 1.2rem;
        margin-top: 2rem;
    }

    .hero {
        padding: 40px 0 60px;
    }
}

/* --- Ultimate Mobile Responsiveness for Tools --- */
@media (max-width: 768px) {

    /* Tool UI Headers */
    .tool-ui h3 {
        font-size: 2.2rem !important;
        line-height: 1.1 !important;
    }

    .tool-ui p {
        font-size: 0.9rem !important;
    }

    /* Column Stacking */
    .workspace-layout {
        display: flex !important;
        flex-direction: column !important;
        gap: 2rem !important;
    }

    /* Container Padding Adjustments */
    .security-box,
    .forge-container,
    .converter-box,
    .forge-box,
    .controls-side,
    .output-side,
    .input-block,
    .output-block {
        padding: 1.5rem !important;
        border-radius: 24px !important;
    }

    /* Specific Tool Box Adjustments */
    .converter-box {
        display: flex !important;
        flex-direction: column !important;
    }

    .output-side div[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }

    /* Input/Result Areas Scaling */
    .result-area {
        height: auto !important;
        min-height: 200px !important;
        padding: 1.2rem !important;
    }

    textarea,
    input[type="text"],
    input[type="password"] {
        font-size: 1rem !important;
        padding: 1rem !important;
    }

    /* Large Result Text Scaling */
    code[style*="font-size: 1.8rem"],
    code[style*="font-size: 1.5rem"],
    #md5-final,
    #b64-final,
    #entity-final {
        font-size: 1.2rem !important;
    }

    /* Entity Pro & Epoch Master Grid Fixing */
    .tool-ui>div[style*="display:grid"] {
        grid-template-columns: 1fr !important;
    }

    /* Glass Forge Preview Scaling */
    .preview-side {
        height: 300px !important;
    }

    #glass-preview {
        width: 100% !important;
        height: 100% !important;
        border-radius: 20px !important;
    }

    /* Entropy Pro Metrics Stacking */
    #strength-meter-box>div[style*="display:grid"] {
        grid-template-columns: 1fr !important;
    }

    /* Table/Lists within results */
    .result-area div[style*="display:grid"] {
        grid-template-columns: 1fr !important;
    }

    /* Hide cursor glow on mobile */
    .cursor-glow {
        display: none !important;
    }

    /* Standalone modal tweaks */
    #tool-overlay {
        padding: 10px !important;
    }

    #modal-content {
        padding: 1.5rem !important;
        border-radius: 25px !important;
    }
}

/* Extra Small Devices */
@media (max-width: 480px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 2rem;
    }

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