/* =========================================
   Portfolio CSS - Emman
   Author: Emman
   Version: 1.0
   ========================================= */

/* =========================================
   1. CSS Variables & Theme Setup
   ========================================= */
:root {
    /* Dark Theme (Default) */
    --bg-primary: #1A1A1A;
    --bg-secondary: #242424;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #808080;
    --accent-primary: #3b82f6;
    --accent-secondary: #60a5fa;
    --accent-gradient: linear-gradient(135deg, #3b82f6, #60a5fa);
    --border-color: #333333;
    --card-bg: #242424;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --navbar-bg: rgba(26, 26, 26, 0.95);
    --grid-color: rgba(255, 255, 255, 0.03);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-brand: 'Pacifico', cursive;
    
    /* Spacing */
    --section-padding: 100px 0;
    --section-padding-mobile: 60px 0;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e8e8e8;
    --text-primary: #1A1A1A;
    --text-secondary: #4a4a4a;
    --text-muted: #6b6b6b;
    --border-color: #e0e0e0;
    --card-bg: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --navbar-bg: rgba(255, 255, 255, 0.95);
    --grid-color: rgba(0, 0, 0, 0.03);
}

/* =========================================
   2. Base Styles
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
}

/* =========================================
   3. Typography
   ========================================= */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.section-subtitle .highlight {
    color: var(--accent-primary);
}

/* =========================================
   4. Navbar Styles
   ========================================= */
.navbar {
    background-color: var(--navbar-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1rem 0;
    transition: all var(--transition-normal);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 20px var(--shadow-color);
}

.navbar-brand {
    font-family: var(--font-brand);
    font-size: 1.75rem;
    color: var(--text-primary) !important;
    font-weight: 400;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    margin: 0 0.25rem;
    border-radius: 8px;
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary) !important;
    background-color: var(--bg-secondary);
}

.navbar-toggler {
    border: none;
    padding: 0.5rem;
    background-color: var(--bg-secondary);
    border-radius: 8px;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-theme="light"] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0, 0, 0, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Theme Toggle Button */
.theme-toggle {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background-color: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    transition: var(--transition-fast);
}

.theme-toggle:hover {
    border-color: var(--accent-primary);
    background-color: var(--bg-secondary);
}

.theme-toggle i {
    font-size: 1.1rem;
    position: absolute;
    transition: var(--transition-normal);
}

.sun-icon {
    color: #fbbf24;
    opacity: 1;
    transform: translateY(0);
}

.moon-icon {
    color: #60a5fa;
    opacity: 0;
    transform: translateY(20px);
}

[data-theme="light"] .sun-icon {
    opacity: 0;
    transform: translateY(-20px);
}

[data-theme="light"] .moon-icon {
    opacity: 1;
    transform: translateY(0);
}

/* Contact Button */
.btn-contact {
    padding: 0.6rem 1.5rem;
    font-weight: 500;
    border-radius: 50px;
}

/* =========================================
   5. Hero Section
   ========================================= */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
    padding: 0 1rem;
}

.hero-avatar {
    width: 180px;
    height: 180px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--accent-primary);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.3);
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-subtitle .emoji {
    font-size: 1.5rem;
}

.hero-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
    font-style: italic;
}

.hero-btn {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
}

/* =========================================
   6. About Section
   ========================================= */
.about-section {
    padding: var(--section-padding);
    background-color: var(--bg-secondary);
}

.about-content {
    max-width: 800px;
}

.about-text {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    text-align: left;
}

.about-cta {
    margin-top: 2.5rem;
}

/* Hacking Terminal Styles */
.terminal-link {
    display: block;
    text-decoration: none;
    transition: transform var(--transition-normal);
}

.terminal-link:hover {
    transform: scale(1.02);
}

.hacking-terminal {
    background: linear-gradient(145deg, #1a1128, #2d1f4a);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 
        0 25px 50px -12px rgba(0, 0, 0, 0.5),
        0 0 40px rgba(138, 43, 226, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(138, 43, 226, 0.3);
    font-family: 'Fira Code', 'Monaco', 'Cascadia Code', 'Roboto Mono', monospace;
    max-width: 520px;
    margin-left: auto;
}

.terminal-header {
    background: linear-gradient(90deg, #2d1f4a, #1a1128);
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid rgba(138, 43, 226, 0.2);
}

.terminal-buttons {
    display: flex;
    gap: 6px;
}

.terminal-buttons span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.btn-close-terminal {
    background: #ff5f57;
}

.btn-minimize {
    background: #febc2e;
}

.btn-maximize {
    background: #28c840;
}

.terminal-title {
    color: #a78bfa;
    font-size: 0.75rem;
    flex: 1;
    text-align: center;
}

.terminal-body {
    padding: 15px;
    min-height: 280px;
    font-size: 0.85rem;
}

.terminal-line {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 3px;
}

.prompt {
    color: #22c55e;
    font-weight: bold;
}

.command {
    color: #60a5fa;
    animation: typeIn 0.5s ease-out;
}

.terminal-output {
    color: #e2e8f0;
    margin-left: 18px;
    margin-bottom: 10px;
    padding-left: 5px;
    animation: fadeIn 0.3s ease-out;
}

.terminal-output.success {
    color: #22c55e;
}

.terminal-output.warning {
    color: #fbbf24;
}

.terminal-output.skills {
    color: #a78bfa;
}

.cursor {
    display: inline-block;
    width: 10px;
    height: 18px;
    background: #22c55e;
    animation: blink 1s step-end infinite;
    margin-left: 5px;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Terminal Responsive */
@media (max-width: 991px) {
    .hacking-terminal {
        margin-top: 3rem;
    }
}

@media (max-width: 576px) {
    .terminal-body {
        padding: 15px;
        min-height: 300px;
        font-size: 0.85rem;
    }
    
    .terminal-title {
        font-size: 0.75rem;
    }
}

/* =========================================
   6.4 Skills Section
   ========================================= */
.skills-section {
    padding: var(--section-padding);
    background-color: var(--bg-primary);
}

.skills-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 3px;
    margin-bottom: 0.5rem;
}

.skills-title .highlight {
    color: #a855f7;
}

.skills-row {
    margin-bottom: 4rem;
}

.skills-category {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.skill-item {
    margin-bottom: 1.25rem;
}

.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.skill-name {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.skill-percent {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.skill-bar {
    width: 100%;
    height: 8px;
    background-color: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, #a855f7, #6366f1);
    border-radius: 4px;
    transition: width 1s ease-in-out;
}

/* Tools & Technologies */
.tools-section {
    margin-bottom: 4rem;
}

.tools-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 2rem;
    letter-spacing: 2px;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(9, 1fr);
    gap: 1rem;
}

.tool-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 0.5rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition-normal);
}

.tool-item:hover {
    border-color: var(--accent-primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-color);
}

.tool-item img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.tool-item span {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Stats Section */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 2rem 1rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-color);
}

.stat-card i {
    font-size: 2.5rem;
    color: var(--accent-primary);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

/* Skills Responsive */
@media (max-width: 991px) {
    .tools-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-card {
        padding: 1.5rem 1rem;
    }
    
    .stat-card i {
        font-size: 2rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
}

/* =========================================
   6.5 Badges Section
   ========================================= */
.badges-section {
    padding: 80px 0;
    background-color: var(--bg-primary);
    overflow: hidden;
}

.badges-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: #ffffff;
    letter-spacing: 3px;
    margin-bottom: 0.5rem;
}

.badges-title .highlight {
    color: #a855f7;
}

.title-underline {
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #a855f7, #6366f1);
    margin-bottom: 3rem;
}

.badges-scroll-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.badges-row {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.badges-row::before,
.badges-row::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100px;
    z-index: 2;
    pointer-events: none;
}

.badges-row::before {
    left: 0;
    background: linear-gradient(90deg, var(--bg-primary), transparent);
}

.badges-row::after {
    right: 0;
    background: linear-gradient(-90deg, var(--bg-primary), transparent);
}

.badges-track {
    display: flex;
    gap: 1.5rem;
    width: max-content;
}

.scroll-left .badges-track {
    animation: scrollLeft 30s linear infinite;
}

.scroll-right .badges-track {
    animation: scrollRight 30s linear infinite;
}

.scroll-left-slow .badges-track {
    animation: scrollLeft 40s linear infinite;
}

.badge-item {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.badge-item:hover {
    transform: scale(1.1);
    border-color: var(--accent-primary);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.badge-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 50%;
}

@keyframes scrollLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

@keyframes scrollRight {
    0% {
        transform: translateX(-50%);
    }
    100% {
        transform: translateX(0);
    }
}

/* Badges Responsive */
@media (max-width: 768px) {
    .badges-section {
        padding: 60px 0;
    }
    
    .badge-item {
        width: 90px;
        height: 90px;
    }
    
    .badges-scroll-container {
        gap: 1rem;
    }
}

@media (max-width: 576px) {
    .badge-item {
        width: 70px;
        height: 70px;
        padding: 8px;
    }
    
    .title-underline {
        margin-bottom: 2rem;
    }
}

/* =========================================
   6.6 Certifications Section
   ========================================= */
.certifications-section {
    padding: var(--section-padding);
    background-color: var(--bg-secondary);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.certification-card {
    background-color: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.certification-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 20px 40px var(--shadow-color);
}

.cert-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    background-color: #ffffff;
}

.cert-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: var(--transition-slow);
}

.certification-card:hover .cert-image img {
    transform: scale(1.05);
}

.cert-info {
    padding: 1.5rem;
    text-align: center;
}

.cert-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.cert-issuer {
    font-size: 0.9rem;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.cert-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.cert-date i {
    margin-right: 5px;
}

.cert-verify {
    border-radius: 50px;
    padding: 0.4rem 1.2rem;
    font-size: 0.85rem;
}

/* Certifications Responsive */
@media (max-width: 991px) {
    .certifications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .certifications-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-image {
        height: 150px;
    }
}

/* =========================================
   7. Projects Section
   ========================================= */
.projects-section {
    padding: var(--section-padding);
    background-color: var(--bg-primary);
}

/* Project Filters */
.project-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.filter-btn {
    padding: 0.6rem 1.5rem;
    border: 1px solid var(--border-color);
    background-color: transparent;
    color: var(--text-secondary);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.filter-btn.active {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #ffffff;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

/* Project Card */
.project-card {
    background-color: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px var(--shadow-color);
}

.project-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(59, 130, 246, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link {
    width: 50px;
    height: 50px;
    background-color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    font-size: 1.25rem;
    transform: translateY(20px);
    transition: var(--transition-normal);
}

.project-card:hover .project-link {
    transform: translateY(0);
}

.project-link:hover {
    background-color: var(--bg-primary);
    color: #ffffff;
}

.project-info {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.project-tech {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* =========================================
   8. Services Section
   ========================================= */
.services-section {
    padding: var(--section-padding);
    background-color: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.service-card {
    background-color: var(--card-bg);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 20px 40px var(--shadow-color);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--accent-gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.service-icon i {
    font-size: 2rem;
    color: #ffffff;
}

.service-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.service-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* =========================================
   9. Contact Section
   ========================================= */
.contact-section {
    padding: var(--section-padding);
    background-color: var(--bg-primary);
}

.contact-form .form-control {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 1rem 1.25rem;
    border-radius: 12px;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.contact-form .form-control::placeholder {
    color: var(--text-muted);
}

.contact-form .form-control:focus {
    background-color: var(--bg-secondary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
    color: var(--text-primary);
}

.contact-form textarea.form-control {
    resize: none;
}

/* Social Links */
.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 3rem;
}

.social-link {
    width: 50px;
    height: 50px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.social-link:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #ffffff;
    transform: translateY(-3px);
}

/* =========================================
   10. Footer
   ========================================= */
.footer {
    background-color: var(--bg-secondary);
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
}

.footer-text {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

/* =========================================
   11. Buttons
   ========================================= */
.btn-primary {
    background: var(--accent-gradient);
    border: none;
    color: #ffffff;
    font-weight: 600;
    transition: var(--transition-fast);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
    background: linear-gradient(135deg, #2563eb, #3b82f6);
}

.btn-outline-primary {
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    background-color: transparent;
    font-weight: 600;
    transition: var(--transition-fast);
}

.btn-outline-primary:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #ffffff;
    transform: translateY(-2px);
}

/* =========================================
   12. Scrollbar Styles
   ========================================= */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

/* =========================================
   13. Selection Styles
   ========================================= */
::selection {
    background-color: var(--accent-primary);
    color: #ffffff;
}

/* =========================================
   14. Responsive Styles
   ========================================= */

/* Large devices (desktops, less than 1200px) */
@media (max-width: 1199.98px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Medium devices (tablets, less than 992px) */
@media (max-width: 991.98px) {
    :root {
        --section-padding: 80px 0;
    }
    
    .navbar-collapse {
        background-color: var(--bg-secondary);
        padding: 1rem;
        border-radius: 12px;
        margin-top: 1rem;
        border: 1px solid var(--border-color);
    }
    
    .navbar-nav {
        margin-bottom: 1rem;
    }
    
    .nav-actions {
        flex-direction: row;
        justify-content: space-between;
        padding-top: 1rem;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-actions .btn-contact {
        display: block !important;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-avatar {
        width: 150px;
        height: 150px;
    }
}

/* Small devices (landscape phones, less than 768px) */
@media (max-width: 767.98px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-description {
        font-size: 0.95rem;
    }
    
    .hero-avatar {
        width: 130px;
        height: 130px;
    }
    
    .project-filters {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card {
        padding: 2rem 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .contact-form .form-control {
        padding: 0.875rem 1rem;
    }
}

/* Extra small devices (portrait phones, less than 576px) */
@media (max-width: 575.98px) {
    .navbar-brand {
        font-size: 1.5rem;
    }
    
    .hero-section {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-avatar {
        width: 120px;
        height: 120px;
    }
    
    .hero-btn {
        padding: 0.875rem 2rem;
        font-size: 0.95rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .project-image {
        height: 180px;
    }
    
    .filter-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
    }
    
    .social-link {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
    
    .about-text {
        font-size: 0.95rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
    }
}

/* =========================================
   15. Animation Classes
   ========================================= */
.fade-in {
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

.slide-up {
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.5s ease forwards;
}

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

/* Project card hover glow effect */
.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 16px;
    background: var(--accent-gradient);
    opacity: 0;
    z-index: -1;
    transition: var(--transition-normal);
    filter: blur(20px);
}

.project-card:hover::before {
    opacity: 0.2;
}

/* =========================================
   16. Utility Classes
   ========================================= */
.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient {
    background: var(--accent-gradient);
}

/* Hide project cards during filter animation */
.project-card.hidden {
    display: none;
}

.project-card.show {
    animation: fadeInUp 0.5s ease forwards;
}

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

/* =========================================
   17. Page Header Styles
   ========================================= */
.page-header {
    padding: 150px 0 80px;
    background-color: var(--bg-secondary);
    position: relative;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}

/* =========================================
   18. About Page Styles
   ========================================= */
.about-page-section {
    padding: var(--section-padding);
    background-color: var(--bg-primary);
}

.about-image-wrapper {
    position: relative;
}

.about-page-img {
    width: 100%;
    max-width: 400px;
    border-radius: 20px;
    border: 4px solid var(--accent-primary);
    box-shadow: 0 20px 50px var(--shadow-color);
}

.about-page-content h2 {
    font-size: 2rem;
    font-weight: 700;
}

.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    transition: var(--transition-fast);
}

.skill-tag:hover {
    background-color: var(--accent-primary);
    color: #ffffff;
    border-color: var(--accent-primary);
}

/* Experience Timeline */
.experience-section {
    padding: var(--section-padding);
    background-color: var(--bg-secondary);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--accent-gradient);
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding: 0 2rem 2rem 0;
    position: relative;
    width: 50%;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    margin-left: 50%;
    padding: 0 0 2rem 2rem;
}

.timeline-marker {
    position: absolute;
    right: -10px;
    width: 20px;
    height: 20px;
    background: var(--accent-gradient);
    border-radius: 50%;
    border: 4px solid var(--bg-secondary);
}

.timeline-item:nth-child(even) .timeline-marker {
    left: -10px;
    right: auto;
}

.timeline-content {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    max-width: 300px;
}

.timeline-date {
    color: var(--accent-primary);
    font-size: 0.875rem;
    font-weight: 600;
}

.timeline-content h4 {
    margin: 0.5rem 0;
    font-size: 1.1rem;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* =========================================
   19. Projects Page Styles
   ========================================= */
.projects-page-section {
    padding: var(--section-padding);
    background-color: var(--bg-primary);
}

/* =========================================
   20. Services Page Styles
   ========================================= */
.services-page-section {
    padding: var(--section-padding);
    background-color: var(--bg-primary);
}

.services-grid-page {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card-large {
    background-color: var(--card-bg);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.service-card-large:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 20px 50px var(--shadow-color);
}

.service-icon-large {
    width: 80px;
    height: 80px;
    background: var(--accent-gradient);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon-large i {
    font-size: 2.5rem;
    color: #ffffff;
}

.service-card-large .service-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.service-card-large .service-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.service-features li i {
    color: var(--accent-primary);
}

/* CTA Section */
.cta-section {
    padding: var(--section-padding);
    background: var(--accent-gradient);
}

.cta-content h2 {
    color: #ffffff;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.cta-section .btn-primary {
    background: #ffffff;
    color: var(--accent-primary);
}

.cta-section .btn-primary:hover {
    background: var(--bg-primary);
    color: #ffffff;
}

/* =========================================
   21. Contact Page Styles
   ========================================= */
.contact-page-section {
    padding: var(--section-padding);
    background-color: var(--bg-primary);
}

.contact-info {
    padding-right: 2rem;
}

.contact-info h3 {
    font-size: 1.75rem;
    font-weight: 700;
}

.contact-info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.25rem;
    color: #ffffff;
}

.contact-text h5 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-text p {
    color: var(--text-secondary);
    margin: 0;
}

.contact-form-wrapper {
    background-color: var(--card-bg);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.contact-form .form-label {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.contact-form .form-select {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 1rem 1.25rem;
    border-radius: 12px;
}

.contact-form .form-select:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* =========================================
   22. Additional Responsive Styles
   ========================================= */
@media (max-width: 991.98px) {
    .services-grid-page {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 50px;
        padding-right: 0;
    }
    
    .timeline-item:nth-child(even) {
        margin-left: 0;
        padding-left: 50px;
    }
    
    .timeline-marker {
        left: 10px;
        right: auto;
    }
    
    .timeline-item:nth-child(even) .timeline-marker {
        left: 10px;
    }
    
    .timeline-content {
        max-width: 100%;
    }
    
    .contact-info {
        padding-right: 0;
    }
}

@media (max-width: 767.98px) {
    .services-grid-page {
        grid-template-columns: 1fr;
    }
    
    .service-card-large {
        padding: 2rem;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
    
    .cta-content h2 {
        font-size: 1.75rem;
    }
    
    .about-page-img {
        max-width: 300px;
        margin: 0 auto;
        display: block;
    }
}

@media (max-width: 575.98px) {
    .page-header {
        padding: 120px 0 60px;
    }
    
    .timeline-content {
        padding: 1rem;
    }
    
    .contact-info-item {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-icon {
        margin: 0 auto;
    }
}