/* ==========================================================================
   DEVELOPER PORTFOLIO STYLESHEET (Waqas Ahmed)
   ========================================================================== */

/* Importing Reset & Fonts directly */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ==========================================
   CSS CUSTOM VARIABLES (Design System)
   ========================================== */
:root {
    /* Fonts */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Layout Constants */
    --navbar-height: 80px;
    --navbar-height-scrolled: 70px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --container-max: 1200px;
}

/* 1. DARK THEME PROPERTIES (Default) */
.dark-theme {
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-tertiary: #6b7280;
    
    --accent-primary: #6366f1; /* Indigo */
    --accent-secondary: #8b5cf6; /* Violet */
    --accent-glow: rgba(99, 102, 241, 0.15);
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    
    --border-color: rgba(255, 255, 255, 0.08);
    
    /* Glassmorphism settings */
    --glass-bg: rgba(17, 24, 39, 0.6);
    --glass-border: rgba(255, 255, 255, 0.06);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    
    /* Card/Visual settings */
    --card-bg: #1f2937;
    --visual-gradient-1: linear-gradient(135deg, #1e293b, #0f172a);
    --visual-gradient-2: linear-gradient(135deg, #311042, #11061f);
    --visual-gradient-3: linear-gradient(135deg, #09303d, #04141c);
    
    /* Glow Follower */
    --cursor-glow-color: rgba(99, 102, 241, 0.08);
}

/* 2. LIGHT THEME PROPERTIES */
.light-theme {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    
    --accent-primary: #4f46e5; /* Deeper Indigo */
    --accent-secondary: #7c3aed; /* Deeper Violet */
    --accent-glow: rgba(79, 70, 229, 0.08);
    --accent-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    
    --border-color: rgba(0, 0, 0, 0.08);
    
    /* Glassmorphism settings */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(0, 0, 0, 0.06);
    --glass-shadow: rgba(31, 41, 55, 0.06);
    
    /* Card/Visual settings */
    --card-bg: #ffffff;
    --visual-gradient-1: linear-gradient(135deg, #e2e8f0, #cbd5e1);
    --visual-gradient-2: linear-gradient(135deg, #f3e8ff, #e9d5ff);
    --visual-gradient-3: linear-gradient(135deg, #ecfeff, #cffafe);
    
    /* Glow Follower */
    --cursor-glow-color: rgba(79, 70, 229, 0.04);
}

/* ==========================================
   CSS CORE RESET
   ========================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

section {
    padding: 100px 0;
}

.section-container {
    width: 90%;
    max-width: var(--container-max);
    margin: 0 auto;
}

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

ul {
    list-style: none;
}

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

input, textarea, button {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

/* ==========================================
   COMPONENTS: Scroll Reveal Setup
   ========================================== */
.reveal-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal-item.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Custom delay utility for children */
.reveal-item:nth-child(2) { transition-delay: 0.1s; }
.reveal-item:nth-child(3) { transition-delay: 0.2s; }
.reveal-item:nth-child(4) { transition-delay: 0.3s; }
.reveal-item:nth-child(5) { transition-delay: 0.4s; }

/* ==========================================
   COMPONENTS: Buttons
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #ffffff !important;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
}

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

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

.btn-block {
    width: 100%;
}

.btn:active {
    transform: translateY(0);
}

/* ==========================================
   COMPONENTS: Glassmorphism Cards
   ========================================== */
.glass-card {
    background-color: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    padding: 30px;
    box-shadow: 0 10px 30px var(--glass-shadow);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
    transform: translateY(-6px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15), 0 5px 15px var(--accent-glow);
}

/* ==========================================
   NAVIGATION BAR
   ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--navbar-height);
    background-color: transparent;
    z-index: 1000;
    display: flex;
    align-items: center;
    border-bottom: 1px solid transparent;
    transition: height var(--transition-normal), background-color var(--transition-normal), border-color var(--transition-normal), backdrop-filter var(--transition-normal);
}

.navbar.scrolled {
    height: var(--navbar-height-scrolled);
    background-color: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 20px var(--glass-shadow);
}

.nav-container {
    width: 90%;
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.logo-accent {
    color: var(--accent-primary);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    position: relative;
    padding: 6px 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width var(--transition-fast) ease-in-out, left var(--transition-fast) ease-in-out;
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
    left: 0;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Toggle Button */
.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

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

.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.burger-menu .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Cursor Glow follow cursor style */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--cursor-glow-color) 0%, rgba(99, 102, 241, 0) 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.5s ease;
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: var(--bg-primary);
    overflow: hidden;
    padding-top: 120px;
}

/* Floating Blurred Shapes */
.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
    z-index: 1;
    animation: drift 20s infinite alternate ease-in-out;
}

.shape-1 {
    top: 15%;
    left: 10%;
    width: 300px;
    height: 300px;
    background-color: var(--accent-primary);
}

.shape-2 {
    bottom: 10%;
    right: 15%;
    width: 400px;
    height: 400px;
    background-color: var(--accent-secondary);
}

.shape-3 {
    top: 50%;
    left: 50%;
    width: 250px;
    height: 250px;
    background-color: #06b6d4; /* cyan glow */
    animation-delay: -5s;
}

@keyframes drift {
    0% { transform: translate(0, 0) rotate(0deg) scale(1); }
    100% { transform: translate(50px, 40px) rotate(180deg) scale(1.2); }
}

.hero-container {
    width: 90%;
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 5;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-greeting {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--accent-primary);
    margin-bottom: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-name {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 15px;
    color: var(--text-primary);
    letter-spacing: -1.5px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(1.4rem, 2.5vw, 2.2rem);
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 25px;
}

.typing-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.typed-cursor {
    color: var(--accent-secondary);
    animation: blink 0.8s infinite;
}

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

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 580px;
    margin-bottom: 35px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.hero-socials {
    display: flex;
    gap: 20px;
}

.social-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: transform var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.social-icon:hover {
    color: var(--text-primary);
    border-color: var(--accent-primary);
    background-color: var(--accent-glow);
    transform: translateY(-3px);
}

/* Hero Profile Frame */
.hero-image-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-border-gradient {
    position: relative;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    padding: 6px;
    background: var(--accent-gradient);
    animation: rotateGradient 8s infinite linear;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 40px var(--accent-glow);
}

@keyframes rotateGradient {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.image-inner-container {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--bg-primary);
    overflow: hidden;
    position: relative;
    /* Cancel the parent's rotate animation so the image stays upright */
    animation: rotateGradient 8s infinite linear reverse;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.5s ease;
}

.image-border-gradient:hover .profile-img {
    transform: scale(1.05);
}

/* ==========================================
   SECTION HEADER GENERAL
   ========================================== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header .subtitle {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--accent-primary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    display: block;
    margin-bottom: 8px;
}

.section-header .section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.title-underline {
    width: 60px;
    height: 4px;
    background: var(--accent-gradient);
    border-radius: 2px;
    margin: 12px auto 0;
}

/* ==========================================
   ABOUT ME SECTION
   ========================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
    align-items: center;
}

.about-bio {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

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

.about-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
}

.info-item i {
    font-size: 1.4rem;
    color: var(--accent-primary);
}

.info-item span {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-item p {
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-heading);
}

.about-cards-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.stat-card .card-icon {
    font-size: 1.8rem;
    color: var(--accent-primary);
    margin-bottom: 15px;
}

.stat-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.stat-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ==========================================
   TECHNICAL SKILLS SECTION
   ========================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

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

.skill-card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.skill-card-header .header-icon {
    font-size: 1.5rem;
    color: var(--accent-primary);
}

.skill-card-header h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

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

.skill-progress {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 4px;
    width: 0; /* Animated dynamically or directly in width */
    transition: width 1.5s ease-in-out;
}

/* ==========================================
   WORK EXPERIENCE TIMELINE
   ========================================== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 31px;
    top: 0;
    width: 2px;
    height: 100%;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: 50px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: 20px;
    top: 30px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--bg-primary);
    border: 4px solid var(--accent-primary);
    z-index: 5;
    box-shadow: 0 0 10px var(--accent-glow);
    transition: background-color var(--transition-fast);
}

.timeline-item:hover .timeline-dot {
    background-color: var(--accent-secondary);
}

.timeline-date {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 8px;
}

.timeline-content h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.company-name {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

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

/* ==========================================
   PROJECTS SECTION
   ========================================== */
.project-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 45px;
}

.filter-btn {
    padding: 8px 20px;
    border-radius: 20px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--accent-gradient);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.project-card {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-image-container {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.project-placeholder-img {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Curated visually rich gradients for placeholders instead of standard images */
.visual-frontend {
    background: var(--visual-gradient-1);
    color: var(--accent-primary);
}

.visual-fullstack-1 {
    background: var(--visual-gradient-2);
    color: #a855f7;
}

.visual-fullstack-2 {
    background: var(--visual-gradient-3);
    color: #06b6d4;
}

.visual-fullstack-3 {
    background: linear-gradient(135deg, #1e1b4b, #311042);
    color: #f43f5e;
}

.visual-cms-1 {
    background: linear-gradient(135deg, #0f172a, #0b2545);
    color: #38bdf8;
}

.visual-fullstack-4 {
    background: linear-gradient(135deg, #111827, #064e3b);
    color: #34d399;
}

.project-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.project-card:hover .project-card-img {
    transform: scale(1.06);
}

.project-icon {
    filter: drop-shadow(0 8px 12px rgba(0,0,0,0.15));
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.project-card:hover .project-icon {
    transform: scale(1.15) rotate(5deg);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast) ease;
    z-index: 10;
}

.project-image-container:hover .project-overlay {
    opacity: 1;
}

.project-link-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--accent-primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    transform: scale(0.8);
    transition: transform var(--transition-fast);
}

.project-overlay:hover .project-link-btn {
    transform: scale(1);
}

.project-info {
    padding: 25px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-tag {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.project-info h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.project-info p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.project-tech span {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 12px;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.project-links {
    margin-top: auto;
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
}

.project-action-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.project-action-link:hover {
    color: var(--accent-primary);
}

/* ==========================================
   CONTACT SECTION
   ========================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 50px;
    align-items: flex-start;
}

.contact-info-column h3 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    margin-bottom: 15px;
}

.contact-info-column > p {
    color: var(--text-secondary);
    margin-bottom: 35px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-detail-card {
    display: flex;
    align-items: center;
    gap: 20px;
    text-align: left;
}

.contact-detail-card .card-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--accent-glow);
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.contact-detail-card h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 3px;
}

.contact-detail-card p {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

.form-group label {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 14px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input.input-error, .form-group textarea.input-error {
    border-color: #ef4444;
}

.error-msg {
    color: #ef4444;
    font-size: 0.8rem;
    font-weight: 500;
    display: none;
}

/* ==========================================
   TOAST NOTIFICATION
   ========================================== */
.toast {
    position: fixed;
    bottom: -100px;
    right: 30px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--accent-primary);
    border-radius: var(--border-radius-md);
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
    z-index: 10000;
    opacity: 0;
    transition: bottom 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s ease;
}

.toast.show {
    bottom: 30px;
    opacity: 1;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
}

.toast-icon {
    font-size: 1.8rem;
    color: var(--accent-primary);
}

.toast-message h4 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    margin-bottom: 2px;
}

.toast-message p {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

/* ==========================================
   FOOTER SECTION
   ========================================== */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-container {
    width: 90%;
    max-width: var(--container-max);
    margin: 0 auto;
}

.footer-brand {
    text-align: center;
    margin-bottom: 30px;
}

.footer-brand p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    max-width: 400px;
    margin: 12px auto 0;
}

.footer-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 25px;
    margin-bottom: 30px;
}

.footer-nav a {
    font-family: var(--font-heading);
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.footer-divider {
    height: 1px;
    background-color: var(--border-color);
    margin-bottom: 30px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.copyright {
    font-size: 0.88rem;
    color: var(--text-tertiary);
}

.footer-socials {
    display: flex;
    gap: 15px;
}

.footer-socials a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.footer-socials a:hover {
    color: var(--text-primary);
    border-color: var(--accent-primary);
    background-color: var(--accent-glow);
}

/* ==========================================
   BACK TO TOP BUTTON
   ========================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px; /* position left to balance out right-hand side elements */
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #ffffff;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
}

/* ==========================================
   RESPONSIVE MEDIA QUERIES
   ========================================== */

/* 1. TABLET VIEWS (Under 992px) */
@media (max-width: 992px) {
    section {
        padding: 80px 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-cards-column {
        flex-direction: row;
    }
    
    .stat-card {
        flex: 1;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* 2. MOBILE LANDSCAPE VIEWS (Under 768px) */
@media (max-width: 768px) {
    /* Mobile Burger Menu & Slide navbar drawer */
    .burger-menu {
        display: flex;
    }
    
    /* Activating Burger Menu Cross Animation */
    .burger-menu.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .burger-menu.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .burger-menu.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav-menu {
        position: fixed;
        top: var(--navbar-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--navbar-height));
        background-color: var(--bg-secondary);
        border-right: 1px solid var(--border-color);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 40px;
        transition: left var(--transition-normal);
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        font-size: 1.3rem;
    }
    
    .about-cards-column {
        flex-direction: column;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        padding-left: 50px;
    }
    
    .timeline-dot {
        left: 9px;
        top: 25px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* 3. MOBILE PORTRAIT VIEWS (Under 480px) */
@media (max-width: 480px) {
    .hero-name {
        font-size: 2.2rem;
    }
    
    .hero-title {
        font-size: 1.25rem;
    }
    
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .image-border-gradient {
        width: 250px;
        height: 250px;
    }
    
    .section-header .section-title {
        font-size: 2rem;
    }
    
    .info-item {
        flex-direction: column;
        text-align: center;
    }
}