/* CSS Variables */
:root {
    
    /* Colors */
    --color-primary: #00ff88;
    --color-primary-dark: #00cc6a;
    --color-primary-light: #33ffaa;
    --color-accent: #00ffff;
    --color-secondary: #7c3aed;
    
    /* Backgrounds */
    --bg-primary: #0a0e14;
    --bg-secondary: #111827;
    --bg-tertiary: #1a1f2e;
    --bg-card: #151b28;
    --bg-hover: #1e2737;
    
    /* Text Colors */
    --text-primary: #e5e7eb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --text-inverse: #0a0e14;
    
    /* Borders */
    --border-primary: #1f2937;
    --border-accent: #00ff8844;
    --border-glow: #00ff8822;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(0, 255, 136, 0.3);
    --shadow-glow-strong: 0 0 40px rgba(0, 255, 136, 0.5);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    /* Fonts */
    --font-display: 'Orbitron', 'Rajdhani', monospace;
    /* --font-heading: 'Rajdhani', sans-serif; */
    /* --font-heading: 'Oswald', sans-serif; */
    --font-heading: 'Poppins', sans-serif; 
    /* --font-heading: 'Bebas Neue', sans-serif;*/
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    

    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Mode Theme */
[data-theme="light"] {
    /* Colors */
    --color-primary: #00cc6a;
    --color-primary-dark: #00994d;
    --color-primary-light: #00ff88;
    --color-accent: #00cccc;
    --color-secondary: #7c3aed;
    
    /* Backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-card: #f8f9fa;
    --bg-hover: #e5e7eb;
    
    /* Text Colors */
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-muted: #6b7280;
    --text-inverse: #ffffff;
    
    /* Borders */
    --border-primary: #e5e7eb;
    --border-accent: #00cc6a44;
    --border-glow: #00cc6a22;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 20px rgba(0, 204, 106, 0.3);
    --shadow-glow-strong: 0 0 40px rgba(0, 204, 106, 0.5);
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    zoom: 80%;
}

/* Background Effects */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 255, 136, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 255, 255, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--color-primary-light);
}

/* Header & Navigation */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(10, 14, 20, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-primary);
    box-shadow: var(--shadow-md);
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    gap: var(--spacing-md);
}

.logo {
    
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 900;
    font-family: var(--font-display);
    /* color: var(--color-primary); */
    color: #0fb900 !important;
    text-shadow: var(--shadow-glow);
    letter-spacing: 3px;
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    display: inline-block;
}
/* Theme Toggle Button */
#theme-toggle {
    background: var(--bg-card);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-full);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.3rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    order: 2;
}

#theme-toggle:hover {
    border-color: var(--color-primary);
    transform: scale(1.1) rotate(15deg);
    box-shadow: var(--shadow-glow);
}

#theme-toggle:active {
    transform: scale(0.95);
}
.logo::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

.logo:hover::after {
    width: 100%;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
    order: 3;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

nav ul {
    display: flex;
    list-style: none;
    gap: clamp(1rem, 3vw, 2.5rem);
    align-items: center;
    margin-left: auto;   /* Push to the right */
    margin-right: var(--spacing-md); /* Space from the right edge */
}

nav ul li a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    position: relative;
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-base);
}

nav ul li a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--color-primary);
}

nav ul li a:hover::before,
nav ul li a.active::before {
    width: 100%;
}

/* Responsive Navigation */
@media (max-width: 768px) {
    nav {
        gap: 0; 
    }
    
    .logo {
        margin-right: auto; 
    }
    
    #theme-toggle {
        margin-right: var(--spacing-sm); 
    }
    .menu-toggle {
        display: flex;
        order: 3; /* Move to the end */
    }
    
    nav ul {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 280px;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-lg);
        transition: right var(--transition-slow);
        border-left: 1px solid var(--border-primary);
        box-shadow: var(--shadow-lg);
        margin-left: 0;  
        margin-right: 0;
    }
    
    nav ul.active {
        right: 0;
    }
    
    nav ul li a {
        font-size: 1.25rem;
    }
}

/*  Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }
}

/* Hero Section  */
.hero {
    max-width: 1200px;
    margin: var(--spacing-2xl) auto;
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    position: relative;
}

.hero h1 {
    font-family: var(--font-heading);
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Page Header */
.page-header {
    max-width: 1200px;
    margin: var(--spacing-2xl) auto var(--spacing-xl);
    padding: 0 var(--spacing-lg);
    text-align: center;
}

.page-header h1 {
    font-family: var(--font-heading);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/*Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--border-accent);
    box-shadow: var(--shadow-glow);
}

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

/* Grid Layouts */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr));
}

@media (max-width: 768px) {
    .grid {
        gap: var(--spacing-md);
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-weight: 600;
    font-size: 0.95rem;
    text-align: center;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--text-inverse);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-strong);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

/* Forms */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--border-glow);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* Section Titles */
.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-md);
    border-left: 4px solid var(--color-primary);
    position: relative;
}

.section-title::before {
    content: '';
    position: absolute;
    left: -4px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
    filter: blur(4px);
}

/*  Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
    color: var(--text-muted);
}

.empty-state p {
    font-size: 1.1rem;
    font-style: italic;
}

/* Footer */
footer {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    text-align: center;
}

footer p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Animations */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-primary {
    color: var(--color-primary);
}

.text-secondary {
    color: var(--text-secondary);
}

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

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

/* Responsive Visibility */
.hide-mobile {
    display: block;
}

.show-mobile {
    display: none;
}

@media (max-width: 768px) {
    .hide-mobile {
        display: none;
    }
    
    .show-mobile {
        display: block;
    }
}
/* Hide Sidebar on Mobile/Tablet */
@media (max-width: 1024px) {
    .content-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
}
/* Dropdown Submenu Styles */
nav ul li {
    position: relative;
}

.nav-submenu {
    display: none;
    list-style: none;
    position: absolute;
    left: -200px;
    top: 0;
    width: 200px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
    z-index: 100;
}

.nav-submenu.active {
    display: block;
    animation: slideInLeft 0.3s ease-out;
}

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

.nav-submenu li {
    margin-bottom: var(--spacing-xs);
}

.nav-submenu li a {
    font-size: 0.9rem;
    color: var(--text-muted);
    padding: var(--spacing-xs) 0;
    display: block;
}

.nav-submenu li a:hover {
    color: var(--color-primary);
}

.dropdown-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    margin-left: 0.5rem;
    transition: transform var(--transition-base);
    vertical-align: middle;
}

.dropdown-toggle.active {
    transform: rotate(180deg);
}

/* Desktop: hide submenu */
@media (min-width: 769px) {
    .nav-submenu,
    .dropdown-toggle {
        display: none !important;
    }
}

/* Print Styles */
@media print {
    header,
    footer,
    .menu-toggle {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}
.lang-btn {
    padding: 0.3rem 0.5rem;
    font-size: 1rem;
    min-width: 30px;
}

.language-switcher {
    padding: 0.4rem var(--spacing-lg);
}
/*key words TAGS*/
.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    padding: 0.4rem 0.9rem;
    background: var(--bg-secondary);
    color: var(--color-primary);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
}

.tags-section {
    background: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
    margin-top: var(--spacing-xl);
}

.tags-section h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.blog-title {
    display: inline-flex;
    align-items: center;
    gap: 2rem; 
}

.rss-link {
    color: var(--color-primary);
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
}

.rss-link:hover {
    transform: scale(1.15);
    color: var(--color-accent);
}