/* 
=========================================
   GT TOOLS - PREMIUM STYLESHEET
   Developed by Gupta Traders
=========================================
*/

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Theme Tokens - Dark Theme (Default) */
    --bg-gradient: linear-gradient(135deg, #060913 0%, #0c1020 50%, #171d37 100%);
    --bg-solid: #090d16;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Brand Gradients & Accents */
    --accent-primary: #a855f7;
    --accent-secondary: #06b6d4;
    --accent-gradient: linear-gradient(135deg, #a855f7 0%, #06b6d4 100%);
    --accent-glow: rgba(168, 85, 247, 0.4);
    
    /* Card Styles (Glassmorphism + Neumorphism Inset Hybrid) */
    --card-bg: rgba(13, 19, 33, 0.45);
    --card-border: 1px solid rgba(255, 255, 255, 0.05);
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --card-hover-shadow: 0 12px 40px 0 rgba(6, 182, 212, 0.25), 0 0 20px 0 rgba(168, 85, 247, 0.25);
    
    /* Nav & Sidebar Styles */
    --nav-bg: rgba(9, 13, 22, 0.7);
    --nav-border: 1px solid rgba(255, 255, 255, 0.05);
    --sidebar-bg: rgba(7, 10, 18, 0.9);
    
    /* Modal Styles */
    --modal-bg: rgba(10, 15, 28, 0.95);
    --modal-border: 1px solid rgba(255, 255, 255, 0.08);
    --modal-input-bg: rgba(255, 255, 255, 0.03);
    --modal-input-border: rgba(255, 255, 255, 0.1);
    
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables overrides */
body.light-theme {
    --bg-gradient: linear-gradient(135deg, #f4f6fa 0%, #e2e8f0 50%, #cbd5e1 100%);
    --bg-solid: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    /* Brand Gradients & Accents */
    --accent-primary: #4f46e5;
    --accent-secondary: #0ea5e9;
    --accent-gradient: linear-gradient(135deg, #4f46e5 0%, #0ea5e9 100%);
    --accent-glow: rgba(79, 70, 229, 0.25);
    
    /* Card Styles (Neumorphism Focus) */
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-border: 1px solid rgba(255, 255, 255, 0.7);
    --card-shadow: 6px 6px 20px rgba(148, 163, 184, 0.12), -6px -6px 20px rgba(255, 255, 255, 0.95);
    --card-hover-shadow: 10px 10px 30px rgba(79, 70, 229, 0.15), -10px -10px 30px rgba(255, 255, 255, 0.95);
    
    /* Nav & Sidebar Styles */
    --nav-bg: rgba(255, 255, 255, 0.75);
    --nav-border: 1px solid rgba(15, 23, 42, 0.05);
    --sidebar-bg: rgba(255, 255, 255, 0.95);
    
    /* Modal Styles */
    --modal-bg: rgba(255, 255, 255, 0.98);
    --modal-border: 1px solid rgba(15, 23, 42, 0.08);
    --modal-input-bg: rgba(15, 23, 42, 0.03);
    --modal-input-border: rgba(15, 23, 42, 0.08);
}

/* =========================================
   Reset and Global Styles
   ========================================= */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 13px; /* Reduced from 14.5px to shrink all layouts and text */
}

body {
    font-family: var(--font-body);
    background: var(--bg-solid);
    background-image: var(--bg-gradient);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    transition: background var(--transition-normal), color var(--transition-normal);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-solid);
}
::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* =========================================
   Dynamic Particle Canvas
   ========================================= */
#particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: var(--accent-gradient);
    opacity: 0.12;
    filter: blur(4px);
    animation: floatParticle 25s infinite linear;
}

@keyframes floatParticle {
    0% {
        transform: translateY(105vh) translateX(0) scale(1);
    }
    100% {
        transform: translateY(-5vh) translateX(50px) scale(1.3);
    }
}

/* =========================================
   Glassmorphism Sticky Header & Navbar
   ========================================= */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.25rem 2rem;
    transition: padding var(--transition-normal);
}

header.scrolled {
    padding: 0.75rem 2rem;
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--nav-bg);
    backdrop-filter: blur(24px); /* Increased blur for premium feel */
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(6, 182, 212, 0.15); /* Subtly cyan glowing border */
    border-radius: 50px;
    padding: 0.5rem 1.8rem; /* Reduced padding for compact desktop size */
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 8px 32px rgba(6, 182, 212, 0.08), 0 0 15px rgba(168, 85, 247, 0.08); /* Cyber glowing shadows */
    transition: background var(--transition-normal), border var(--transition-normal);
}

.logo-link {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 1.8rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: pulseGlow 3s infinite ease-in-out;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.15rem; /* Reduced logo size */
    letter-spacing: 0.5px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width var(--transition-normal);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Theme Toggle Button */
.theme-toggle-btn {
    background: var(--card-bg);
    border: var(--card-border);
    color: var(--text-primary);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.theme-toggle-btn:hover {
    transform: rotate(45deg) scale(1.08);
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 0 15px var(--accent-glow);
}

/* Mobile Toggle Hamburger */
.hamburger-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 25px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 101;
}

.hamburger-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

/* =========================================
   Sidebar / Drawer Menu
   ========================================= */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 98;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

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

.sidebar-menu {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100%;
    background: var(--sidebar-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: var(--nav-border);
    z-index: 99;
    padding: 6.5rem 2rem 2rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: -10px 0 35px rgba(0, 0, 0, 0.4);
    transition: right var(--transition-normal);
}

.sidebar-menu.active {
    right: 0;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.sidebar-link i {
    font-size: 1.25rem;
    width: 25px;
    color: var(--accent-secondary);
}

.sidebar-link:hover, .sidebar-link.active {
    color: var(--text-primary);
    background: var(--card-bg);
    transform: translateX(5px);
}

.sidebar-stats {
    background: var(--card-bg);
    border: var(--card-border);
    border-radius: 16px;
    padding: 1.2rem;
}

.sidebar-stats h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin-bottom: 0.75rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-item span:last-child {
    font-weight: bold;
    color: var(--text-primary);
}

/* =========================================
   Layout & Dashboard Container
   ========================================= */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 5.5rem 1.5rem 2rem 1.5rem; /* Reduced top padding for less scroll */
    position: relative;
    z-index: 1;
}

/* Dashboard Section Banner */
.dashboard-hero {
    position: relative;
    border-radius: 16px;
    padding: 1rem 1.8rem; /* Reduced padding */
    overflow: hidden;
    margin-bottom: 1.5rem; /* Reduced margin */
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: var(--card-shadow);
    border: var(--card-border);
}

.dashboard-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.12) 0%, rgba(6, 182, 212, 0.12) 100%);
    z-index: -2;
}

/* Background animated gradient card effect */
.dashboard-hero::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.15) 0%, transparent 50%),
                radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 50%);
    background-position: 20% 30%, 80% 70%;
    background-size: 50% 50%;
    z-index: -1;
    animation: gradientMove 15s infinite alternate ease-in-out;
}

@keyframes gradientMove {
    0% {
        transform: rotate(0deg) scale(1);
    }
    100% {
        transform: rotate(360deg) scale(1.15);
    }
}

.hero-content {
    max-width: 900px;
    width: 100%;
}

.hero-subtitle {
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent-secondary);
    font-size: 0.7rem;
    margin-bottom: 0.2rem;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.hero-description {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    line-height: 1.5;
    max-width: 600px;
}

.hero-stats-row {
    display: flex;
    gap: 2rem;
    margin-top: 0.5rem;
    align-items: center;
}

.hero-stat {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
    background: var(--card-bg);
    border: var(--card-border);
    border-radius: 10px;
    padding: 0.4rem 0.9rem;
}

.hero-stat .stat-value {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-stat .stat-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* =========================================
   Tools Section Header & Search
   ========================================= */
.tools-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.2rem; /* Reduced spacing */
    gap: 1.5rem;
    flex-wrap: wrap;
}

.section-title-wrap h2 {
    font-family: var(--font-heading);
    font-size: 1.35rem; /* Reduced h2 size */
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.20rem;
}

.section-title-wrap p {
    color: var(--text-secondary);
    font-size: 0.82rem;
}

.search-bar-container {
    position: relative;
    width: 550px; /* Made the search bar bigger */
    max-width: 100%;
}

.search-input {
    width: 100%;
    padding: 0.95rem 1.25rem 0.95rem 3.4rem; /* Prominent large input style */
    background: var(--card-bg);
    border: 1px solid rgba(6, 182, 212, 0.25); /* Glowing outline border */
    border-radius: 40px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1.05rem; /* Large text input */
    outline: none;
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.08);
    transition: all var(--transition-normal);
}

.search-input:focus {
    border-color: var(--accent-secondary);
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.35);
    transform: translateY(-2px);
}

.search-icon {
    position: absolute;
    left: 1.35rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent-secondary); /* Glowing accent cyan */
    font-size: 1.2rem;
    pointer-events: none;
}

/* =========================================
   Responsive Grid & Tool Cards
   ========================================= */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem; /* Reduced gap */
}

.tool-card {
    background: var(--card-bg);
    border: var(--card-border);
    border-radius: 16px; /* Tighter borders */
    padding: 1.1rem 0.9rem; /* Reduced padding for compact spacing */
    box-shadow: var(--card-shadow);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    z-index: 1;
}

/* Hover glow gradient background */
.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
    opacity: 0;
    z-index: -1;
    transition: opacity var(--transition-normal);
}

.tool-card:hover {
    transform: translateY(-4px) scale(1.02); /* Tighter hover motion */
    box-shadow: var(--card-hover-shadow);
    border-color: rgba(6, 182, 212, 0.3);
}

.tool-card:hover::before {
    opacity: 1;
}

.tool-icon-wrap {
    width: 44px; /* Reduced from 60px */
    height: 44px; /* Reduced from 60px */
    border-radius: 12px;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.8rem; /* Reduced spacing */
    box-shadow: 0 4px 10px var(--accent-glow);
    transition: transform var(--transition-normal);
}

.tool-icon-wrap i {
    font-size: 1.3rem; /* Reduced icon size */
    color: #fff;
}

.tool-card:hover .tool-icon-wrap {
    transform: rotate(10deg) scale(1.06);
}

.tool-title {
    font-family: var(--font-heading);
    font-size: 0.98rem; /* Reduced card title */
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.tool-desc {
    font-size: 0.76rem; /* Tighter card description text */
    color: var(--text-secondary);
    line-height: 1.4;
    margin-bottom: 0.8rem;
    flex-grow: 1;
}

.btn-open-tool {
    width: 100%;
    padding: 0.6rem; /* Tighter buttons */
    border: none;
    border-radius: 10px;
    background: var(--bg-solid);
    border: var(--card-border);
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    transition: all var(--transition-normal);
}

.btn-open-tool i {
    font-size: 0.8rem;
    transition: transform var(--transition-fast);
}

.tool-card:hover .btn-open-tool {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 5px 15px var(--accent-glow);
}

.tool-card:hover .btn-open-tool i {
    transform: translateX(4px);
}

/* Card exit animation for filters */
.tool-card.filtered-out {
    display: none;
}

/* =========================================
   Interactive Modals Layer
   ========================================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(4, 7, 15, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
    padding: 1.5rem;
}

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

.modal-card {
    background: var(--modal-bg);
    border: var(--modal-border);
    border-radius: 28px;
    width: 100%;
    max-width: 650px;
    max-height: calc(100vh - 3rem);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.modal-overlay.active .modal-card {
    transform: scale(1);
}

.modal-header {
    padding: 1.75rem 2.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: var(--modal-border);
}

.modal-title-wrap {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.modal-title-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2rem;
}

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

.modal-close-btn {
    background: var(--modal-input-bg);
    border: var(--modal-border);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.modal-close-btn:hover {
    background: #ef4444;
    color: #fff;
    border-color: transparent;
}

.modal-body {
    padding: 2.2rem;
    overflow-y: auto;
    flex-grow: 1;
}

/* Standard Modal Utility UI Classes */
.tool-group {
    margin-bottom: 1.5rem;
}

.tool-label {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.tool-input, .tool-textarea, .tool-select {
    width: 100%;
    background: var(--modal-input-bg);
    border: 1px solid var(--modal-input-border);
    border-radius: 12px;
    padding: 0.85rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.88rem;
    outline: none;
    transition: border-color var(--transition-normal);
}

.tool-textarea {
    resize: vertical;
    min-height: 120px;
}

.tool-input:focus, .tool-textarea:focus, .tool-select:focus {
    border-color: var(--accent-primary);
}

.tool-checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    cursor: pointer;
    font-size: 0.95rem;
}

.tool-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
}

.tool-btn-row {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.tool-btn {
    flex: 1;
    padding: 0.85rem 1rem;
    border-radius: 12px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: none;
    transition: all var(--transition-normal);
}

.tool-btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.tool-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.tool-btn-secondary {
    background: var(--modal-input-bg);
    border: 1px solid var(--modal-input-border);
    color: var(--text-primary);
}

.tool-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
}

.tool-result-box {
    background: var(--bg-solid);
    border: var(--card-border);
    border-radius: 14px;
    padding: 1.25rem;
    position: relative;
    margin-top: 1.5rem;
    min-height: 50px;
    word-break: break-all;
    font-family: monospace;
    font-size: 0.88rem;
}

.tool-result-copy {
    position: absolute;
    right: 0.75rem;
    top: 0.75rem;
    background: var(--card-bg);
    border: var(--card-border);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}

.tool-result-copy:hover {
    color: var(--accent-secondary);
    border-color: var(--accent-secondary);
}

/* =========================================
   MODALS UTILITY SPECIFIC DESIGN
   ========================================= */

/* Palette Tool */
.palette-container {
    display: flex;
    gap: 0.75rem;
    margin: 1.5rem 0;
}
.palette-color {
    flex: 1;
    height: 100px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    padding-bottom: 0.75rem;
    font-weight: 700;
    font-size: 0.85rem;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
    cursor: pointer;
    transition: transform 0.2s;
    border: var(--card-border);
}
.palette-color:hover {
    transform: scale(1.05);
}

/* Calculator Grid */
.calc-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-top: 1rem;
}
.calc-btn {
    padding: 1.1rem;
    border-radius: 12px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
    cursor: pointer;
    border: 1px solid var(--modal-input-border);
    background: var(--modal-input-bg);
    color: var(--text-primary);
    transition: all 0.2s;
}
.calc-btn:hover {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
}
.calc-btn.op-btn {
    color: var(--accent-secondary);
}
.calc-btn.eq-btn {
    grid-column: span 2;
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
}

/* Glassmorphism live preview */
.glass-live-wrapper {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    position: relative;
}
.glass-circle {
    position: absolute;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: #00f2fe;
    animation: moveCircle 6s infinite alternate ease-in-out;
}
.glass-circle.circle2 {
    background: #f107a3;
    width: 60px;
    height: 60px;
    animation-delay: -3s;
}
@keyframes moveCircle {
    0% { transform: translate(-40px, -20px); }
    100% { transform: translate(40px, 20px); }
}
.glass-live-preview {
    width: 250px;
    height: 100px;
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

/* QR Code centering */
.qr-result-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}
.qr-image-frame {
    background: #fff;
    padding: 1rem;
    border-radius: 16px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    display: none;
}
.qr-image-frame img {
    display: block;
    width: 150px;
    height: 150px;
}

/* Markdown preview output box */
.markdown-preview-pane {
    background: var(--bg-solid);
    border: var(--card-border);
    border-radius: 12px;
    padding: 1.25rem;
    min-height: 120px;
    overflow-y: auto;
    font-size: 0.95rem;
    line-height: 1.6;
}
.markdown-preview-pane h1 { font-size: 1.5rem; border-bottom: 1px solid var(--text-muted); padding-bottom: 0.3rem; margin-bottom: 0.5rem; }
.markdown-preview-pane h2 { font-size: 1.3rem; margin-top: 0.8rem; margin-bottom: 0.4rem; }
.markdown-preview-pane h3 { font-size: 1.1rem; margin-top: 0.6rem; }
.markdown-preview-pane p { margin-bottom: 0.5rem; }
.markdown-preview-pane ul { margin-left: 1.5rem; margin-bottom: 0.5rem; }

/* Contact Section CSS (Optional standard anchor element page target styling) */
#contact {
    scroll-margin-top: 120px;
}
.contact-card {
    background: var(--card-bg);
    border: var(--card-border);
    border-radius: 30px;
    padding: 3.5rem;
    box-shadow: var(--card-shadow);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}
.contact-info h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.contact-info p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
}
.contact-detail {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}
.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    background: var(--accent-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: 0 5px 15px var(--accent-glow);
}
.contact-detail-text h5 {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.contact-detail-text p {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0;
}
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

/* =========================================
   Modern and Responsive Footer
   ========================================= */
footer {
    border-top: var(--nav-border);
    background: rgba(5, 8, 17, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 2.5rem 2rem;
    position: relative;
    z-index: 1;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-left {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.footer-left span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

.footer-right {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.footer-right span {
    color: var(--text-primary);
    font-weight: 600;
}

/* Pulse Glow Animation */
@keyframes pulseGlow {
    0%, 100% {
        filter: drop-shadow(0 0 2px rgba(6, 182, 212, 0.4));
    }
    50% {
        filter: drop-shadow(0 0 12px rgba(168, 85, 247, 0.8));
    }
}

/* =========================================
   Responsive Breakpoints
   ========================================= */

@media (max-width: 992px) {
    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.75rem;
    }
    .tool-card {
        padding: 1rem 0.6rem;
        border-radius: 14px;
        text-align: center;
        align-items: center;
    }
    .tool-icon-wrap {
        width: 42px;
        height: 42px;
        border-radius: 10px;
        margin-bottom: 0.5rem;
        box-shadow: 0 4px 10px var(--accent-glow);
    }
    .tool-icon-wrap i {
        font-size: 1.1rem;
    }
    .tool-title {
        font-size: 0.95rem;
        margin-bottom: 0.3rem;
    }
    .tool-desc {
        font-size: 0.7rem;
        margin-bottom: 0.75rem;
        line-height: 1.3;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .btn-open-tool {
        padding: 0.5rem 0.5rem;
        font-size: 0.75rem;
        border-radius: 10px;
    }
    .btn-open-tool i {
        display: none;
    }
    .contact-card {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        padding: 2.5rem;
    }
    .hero-title {
        font-size: 1.3rem;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 11px; /* Scaled down root font dynamically for mobile screens */
    }
    header {
        padding: 0.6rem 0.6rem;
    }
    header.scrolled {
        padding: 0.4rem 0.6rem;
    }
    .navbar-container {
        padding: 0.45rem 1rem;
        border-radius: 30px;
    }
    .nav-menu {
        display: none; /* Mobile Sidebar used instead */
    }
    .hamburger-toggle {
        display: flex;
    }
    main {
        padding: 4.8rem 0.6rem 2rem 0.6rem; /* Tighter main margins */
    }
    .dashboard-hero {
        padding: 0.85rem 1rem;
        margin-bottom: 1rem;
    }
    .hero-title {
        font-size: 1.15rem;
    }
    .tools-section-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 0.8rem;
        margin-bottom: 1rem;
    }
    .search-bar-container {
        width: 100%;
    }
    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: 0.8rem;
    }
}

@media (max-width: 576px) {
    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }
    .tool-card {
        padding: 0.85rem 0.4rem;
        border-radius: 12px;
        text-align: center;
        align-items: center;
    }
    .tool-icon-wrap {
        width: 34px;
        height: 34px;
        border-radius: 8px;
        margin-bottom: 0.5rem;
        box-shadow: 0 4px 10px var(--accent-glow);
    }
    .tool-icon-wrap i {
        font-size: 0.95rem;
    }
    .tool-title {
        font-size: 0.8rem;
        margin-bottom: 0.2rem;
    }
    .tool-desc {
        font-size: 0.62rem;
        margin-bottom: 0.6rem;
        line-height: 1.3;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .btn-open-tool {
        padding: 0.4rem 0.2rem;
        font-size: 0.68rem;
        border-radius: 8px;
    }
    .btn-open-tool i {
        display: none;
    }
    
    .dashboard-hero {
        padding: 1rem 1rem;
        margin-bottom: 1.5rem;
    }
    .hero-title {
        font-size: 1.1rem;
    }
    .hero-stats-row {
        gap: 0.4rem;
        flex-wrap: wrap;
    }
    .modal-card {
        max-height: calc(100vh - 2rem);
    }
    .modal-header {
        padding: 1.25rem 1.5rem;
    }
    .modal-body {
        padding: 1.5rem;
    }
}

/* =========================================
   100 Tools Category Filters
   ========================================= */
.category-filters-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1.4rem; /* Reduced margin */
    width: 100%;
}

.category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem; /* Reduced gap */
    justify-content: center;
    background: var(--card-bg);
    border: var(--card-border);
    border-radius: 40px;
    padding: 0.4rem 0.8rem; /* Reduced padding */
    backdrop-filter: blur(20px);
    box-shadow: var(--card-shadow);
}

.filter-btn {
    background: transparent;
    border: none;
    padding: 0.45rem 1rem; /* Compact filters */
    border-radius: 30px;
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.82rem; /* Reduced font size */
    cursor: pointer;
    transition: all var(--transition-normal);
}

.filter-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.filter-btn.active {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 12px var(--accent-glow);
}

/* Dynamic Tools Workspace Styling in Homepage */
.detail-panel {
    background: var(--card-bg);
    border: var(--card-border);
    border-radius: 24px;
    padding: 2.5rem;
    backdrop-filter: blur(16px);
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
}

.detail-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--modal-input-border);
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}

.detail-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.detail-title i {
    color: var(--accent-secondary);
}

.dynamic-tool-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 2.5rem;
    align-items: start;
}

@media (max-width: 768px) {
    .dynamic-tool-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

/* =========================================
   Custom Interactive Components Styles
   ========================================= */
.synth-piano-key-white {
    width: 38px;
    height: 100%;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 0 0 6px 6px;
    cursor: pointer;
    z-index: 1;
    transition: background var(--transition-fast);
}
.synth-piano-key-white:active, .synth-piano-key-white.active {
    background: #cbd5e1;
}
.synth-piano-key-black {
    width: 22px;
    height: 60%;
    background: #0f172a;
    margin-left: -11px;
    margin-right: -11px;
    border-radius: 0 0 4px 4px;
    cursor: pointer;
    z-index: 2;
    position: relative;
    transition: background var(--transition-fast);
}
.synth-piano-key-black:active, .synth-piano-key-black.active {
    background: #475569;
}
.diff-col {
    padding: 0.8rem;
    border-radius: 10px;
    font-family: monospace;
    font-size: 0.8rem;
    max-height: 250px;
    overflow-y: auto;
    white-space: pre-wrap;
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--modal-input-border);
}
.todo-item-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--modal-input-border);
    padding: 0.6rem 0.8rem;
    border-radius: 10px;
    margin-bottom: 0.5rem;
}
.todo-item-row.completed span {
    text-decoration: line-through;
    color: var(--text-muted);
}
.switch-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    width: 100%;
}
.switch-tog {
    width: 42px;
    height: 22px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    position: relative;
    transition: background var(--transition-fast);
}
.switch-tog::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    left: 2px;
    top: 2px;
    transition: left var(--transition-fast);
}
.switch-tog.on {
    background: var(--accent-secondary);
}
.switch-tog.on::before {
    left: 22px;
}