/* ------------------- */
/* 1. Root & Variables */
/* ------------------- */
:root {
    --font-primary: 'Poppins', sans-serif;
    --font-headings: 'Montserrat', sans-serif;

    /* Light Theme Colors */
    --bg-light: #fdfcff;
    --text-light: #333;
    --card-bg-light: #FFFFFF;
    --border-light: #E4E4E7;
    --accent-light: #4f46e5; /* A richer indigo */
    --accent-hover-light: #4338ca;
    --secondary-accent-light: #14b8a6; /* Teal */
    --tertiary-accent-light: #f97316; /* Coral/Orange */
    --shadow-light: rgba(79, 70, 229, 0.1);

    /* Dark Theme Colors */
    --bg-dark: #111827;
    --text-dark: #E5E7EB;
    --card-bg-dark: #1F2937;
    --border-dark: #374151;
    --accent-dark: #818cf8; /* A lighter indigo for contrast */
    --accent-hover-dark: #a5b4fc;
    --secondary-accent-dark: #2dd4bf; /* Teal for dark */
    --tertiary-accent-dark: #fb923c; /* Coral for dark */
    --shadow-dark: rgba(0, 0, 0, 0.4);
}

html[data-theme='light'] {
    --bg-color: var(--bg-light);
    --text-color: var(--text-light);
    --card-bg-color: var(--card-bg-light);
    --border-color: var(--border-light);
    --accent-color: var(--accent-light);
    --accent-hover-color: var(--accent-hover-light);
    --secondary-accent: var(--secondary-accent-light);
    --box-shadow-color: var(--shadow-light);
    --header-bg: linear-gradient(to right, #ffffff, #f8fafc);
    --footer-bg: #f8fafc;
}

html[data-theme='dark'] {
    --bg-color: var(--bg-dark);
    --text-color: var(--text-dark);
    --card-bg-color: var(--card-bg-dark);
    --border-color: var(--border-dark);
    --accent-color: var(--accent-dark);
    --accent-hover-color: var(--accent-hover-dark);
    --secondary-accent: var(--secondary-accent-dark);
    --box-shadow-color: var(--shadow-dark);
    --header-bg: linear-gradient(to right, #111827, #1f2937);
    --footer-bg: #111827;
}

/* Dark mode button fixes */
html[data-theme='dark'] .btn-primary {
    background-color: #6366f1;
    color: #fff;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}
html[data-theme='dark'] .btn-primary:hover {
    background-color: #818cf8;
    box-shadow: 0 10px 25px rgba(129, 140, 248, 0.4);
}
html[data-theme='dark'] .btn-secondary {
    border-color: #818cf8;
    color: #818cf8;
}
html[data-theme='dark'] .btn-secondary:hover {
    background-color: #818cf8;
    color: #111827;
}
html[data-theme='dark'] .header-cta {
    background-color: #6366f1;
    color: #fff;
}
html[data-theme='dark'] #scroll-to-top {
    background-color: #a78bfa;
    color: #1e1b4b;
}
html[data-theme='dark'] #scroll-to-top:hover {
    background-color: #c4b5fd;
}

/* ------------------- */
/* 2. Reset & Globals  */
/* ------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body {
    font-family: var(--font-primary);
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
    cursor: none;
    line-height: 1.7;
}
.container { max-width: 1400px; margin: 0 auto; padding: 0 4rem; }
img { max-width: 100%; display: block; height: auto; }
a, button { color: var(--accent-color); text-decoration: none; transition: all 0.3s ease; }
section { padding: 6rem 0; overflow: hidden; position: relative; }
h1, h2, h3, h4 { font-family: var(--font-headings); color: var(--text-color); font-weight: 700; }

/* ------------------- */
/* 3. Custom Cursor    */
/* ------------------- */
.cursor-dot, .cursor-outline { pointer-events: none; position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); border-radius: 50%; z-index: 9999; opacity: 0; }
.cursor-dot { width: 8px; height: 8px; background-color: var(--accent-color); transition: transform 0.1s ease-out; }
.cursor-outline { width: 40px; height: 40px; border: 2px solid var(--accent-color); transition: all 0.2s ease-out; }
body:hover .cursor-dot, body:hover .cursor-outline { opacity: 1; }
.cursor-interact { transform: scale(1.5); border: none; background-color: rgba(79, 70, 229, 0.3); }
.cursor-on-dark .cursor-dot { background-color: #fff; }
.cursor-on-dark .cursor-outline { border-color: #fff; }

/* ------------------- */
/* 4. Header & Nav     */
/* ------------------- */
.header-top-bar {
    height: 2px;
    background: linear-gradient(90deg, transparent, #4f46e5, #818cf8, #a78bfa, transparent);
}
.header {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
    padding: 0.75rem 0;
    background: var(--header-bg);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}
.header.scrolled {
    box-shadow: 0 4px 20px var(--box-shadow-color);
    padding: 0.7rem 0;
}
.header-container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.85rem; font-weight: 700; color: var(--accent-color); }
.main-nav { display: none; }
.header-actions { display: flex; align-items: center; gap: 0.6rem; }
.social-links-header { display: none; align-items: center; gap: 0.5rem; }
.header-cta {
    display: none;
    padding: 6px 16px !important;
    font-size: 0.78rem !important;
    border-radius: 50px !important;
    box-shadow: none !important;
    letter-spacing: 0;
}

.social-icon {
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}
.social-icon:hover {
    background-color: var(--accent-color);
    color: #fff;
}
html[data-theme='dark'] .social-icon:hover {
    color: var(--bg-dark);
}

.icon-btn {
    background: none; border: none; color: var(--text-color);
    cursor: none; padding: 0.6rem; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.3s ease;
}
#mobile-menu-button i {
    font-size: 1.4rem;
}
.icon-btn:hover { background-color: var(--border-color); transform: translateY(-2px); }
.icon-btn:hover i { color: var(--accent-color); }

#theme-toggle .moon-icon, html[data-theme='light'] #theme-toggle .sun-icon { display: none; }
html[data-theme='light'] #theme-toggle .moon-icon { display: block; }

.mobile-nav { 
    display: none; position: fixed; top: 75px; left: 0; width: 100%; 
    background-color: var(--card-bg-color); 
    border-bottom: 1px solid var(--border-color); 
    z-index: 90;
    flex-direction: column;
    transform: translateY(-100%);
    transition: transform 0.3s ease-out;
}
.mobile-nav.active { 
    display: flex; 
    transform: translateY(0);
}
.mobile-nav a {
    padding: 1rem 1.5rem;
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    transition: all 0.3s ease;
}
.mobile-nav a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: linear-gradient(180deg, var(--accent-color), var(--secondary-accent));
    transform: scaleY(0);
    transition: transform 0.3s ease;
}
.mobile-nav a:hover {
    color: var(--accent-color);
    background-color: rgba(79, 70, 229, 0.05);
    padding-left: 2rem;
}
.mobile-nav a.active {
    color: #fff;
    background: linear-gradient(90deg, var(--accent-color), var(--secondary-accent));
    font-weight: 600;
    padding-left: 2rem;
}
.mobile-nav a.active::before {
    transform: scaleY(1);
    background: #fff;
}

/* ------------------- */
/* 5. Hero Section     */
/* ------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--bg-color);
    position: relative;
    overflow: hidden;
}
.hero-bg-elements {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}
/* Bold blobs */
.hero-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
}
.hero-blob-1 {
    width: 600px; height: 600px;
    background: rgba(79, 70, 229, 0.22);
    top: -200px; left: -150px;
    animation: blobFloat 10s ease-in-out infinite;
}
.hero-blob-2 {
    width: 500px; height: 500px;
    background: rgba(167, 139, 250, 0.18);
    bottom: -150px; right: -50px;
    animation: blobFloat 13s ease-in-out infinite reverse;
}
.hero-blob-3 {
    width: 350px; height: 350px;
    background: rgba(129, 140, 248, 0.15);
    top: 30%; left: 35%;
    animation: blobFloat 9s ease-in-out infinite 1.5s;
}
@keyframes blobFloat {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(25px, -25px); }
    66% { transform: translate(-20px, 20px); }
}
/* Rings */
.hero-ring {
    position: absolute;
    border-radius: 50%;
}
.hero-ring-1 {
    width: 600px; height: 600px;
    border: 2px solid rgba(79, 70, 229, 0.12);
    top: 50%; left: -180px;
    transform: translateY(-50%);
    box-shadow: inset 0 0 60px rgba(79, 70, 229, 0.05);
    animation: spin 30s linear infinite;
}
.hero-ring-2 {
    width: 380px; height: 380px;
    border: 2px dashed rgba(167, 139, 250, 0.2);
    top: 5%; right: 2%;
    animation: spin 20s linear infinite reverse;
}
@keyframes spin {
    from { transform: translateY(-50%) rotate(0deg); }
    to { transform: translateY(-50%) rotate(360deg); }
}
/* Dot grid */
.hero-dot-grid {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(79, 70, 229, 0.2) 1.5px, transparent 1.5px);
    background-size: 35px 35px;
    -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}
/* Floating skill cards */
.hero-float {
    position: absolute;
    padding: 10px 16px;
    width: auto;
    height: auto;
    background: rgba(255, 255, 255, 0.92);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(79, 70, 229, 0.25);
    border-radius: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.15), 0 1px 0 rgba(255,255,255,0.8) inset;
    font-size: 0.78rem;
    font-weight: 600;
    color: #4f46e5;
    white-space: nowrap;
}
html[data-theme='dark'] .hero-float {
    background: rgba(20, 18, 60, 0.85);
    border-color: rgba(129, 140, 248, 0.3);
    color: #a78bfa;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}
.hero-float i { font-size: 1rem; }
.hero-float-1 { top: 20%; left: 3%; animation: floatUp 6s ease-in-out infinite; }
.hero-float-2 { bottom: 28%; left: 2%; animation: floatUp 7s ease-in-out infinite 1s; }
.hero-float-3 { top: 12%; right: 1%; animation: floatUp 5s ease-in-out infinite 0.5s; }
.hero-float-4 { bottom: 18%; right: 1%; animation: floatUp 8s ease-in-out infinite 2s; }
@keyframes floatUp {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-14px); }
}
.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background:
        linear-gradient(135deg, rgba(79,70,229,0.05) 0%, transparent 60%),
        linear-gradient(225deg, rgba(167,139,250,0.05) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}
.hero-container {
    position: relative;
    z-index: 1;
}
@keyframes heroGlow {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(10%, 10%); }
    50% { transform: translate(5%, -5%); }
    75% { transform: translate(-10%, 5%); }
}
.hero-container {
    display: flex; align-items: center; justify-content: space-between;
    gap: 5rem;
}
.hero-content {
    max-width: 600px;
}
.subtitle { 
    color: var(--accent-color); font-size: 1.1rem; font-weight: 500; 
    margin-bottom: 1rem; 
    letter-spacing: 1px;
    text-transform: uppercase;
}
.hero-title { 
    font-size: clamp(3rem, 6vw, 4.2rem); 
    line-height: 1.1; margin-bottom: 1.5rem;
}
.hero-text { 
    font-size: 1.1rem; 
    line-height: 1.8;
    margin-bottom: 2.5rem;
    opacity: 0.8;
}
.hero-buttons { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.btn { 
    display: inline-block; padding: 0.9rem 2.2rem; border-radius: 50px; 
    font-weight: 600; transition: all 0.3s ease; border: 2px solid transparent; 
    letter-spacing: 0.5px;
    font-family: var(--font-primary);
}
.btn-primary { 
    background-color: var(--accent-color); color: #fff;
    box-shadow: 0 8px 20px var(--box-shadow-color);
}
.btn-primary:hover { 
    background-color: var(--accent-hover-color); 
    transform: translateY(-3px) scale(1.02); 
    box-shadow: 0 10px 25px var(--box-shadow-color);
}
.btn-secondary { 
    background-color: transparent; border-color: var(--accent-color); 
    color: var(--accent-color); 
}
.btn-secondary:hover { 
    background-color: var(--accent-color);
    color: #fff;
    transform: translateY(-3px) scale(1.02); 
}

.hero-image img {
    max-width: 480px;
    border-radius: 16px;
    animation: fadeInScale 1s ease-out forwards;
}

@keyframes fadeInScale {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

/* ------------------- */
/* 6. General Sections */
/* ------------------- */
.section-title { 
    font-size: clamp(2rem, 5vw, 2.8rem); 
    text-align: center; margin-bottom: 3rem; 
    position: relative;
    padding-bottom: 1rem;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-accent), var(--accent-color));
    border-radius: 2px;
}
.section-intro {
    font-size: 1.1rem;
    color: var(--text-color);
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto 40px auto;
}

/* About Section */
.about-section {
    background-color: var(--bg-color);
}
.about-content-grid {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    align-items: center;
    text-align: center;
}
.about-image img {
    max-width: 300px;
    border-radius: 50%;
    box-shadow: 0 8px 25px var(--box-shadow-color);
    border: 5px solid var(--accent-color);
}
.about-text {
    max-width: 700px;
    text-align: left;
}
.about-text p {
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-color);
    opacity: 0.9;
}
.about-text .btn {
    margin-top: 1.5rem;
}

/* Services Section */
.services {
    position: relative;
    overflow: hidden;
    background: linear-gradient(160deg, #f5f3ff 0%, #ede9fe 40%, #f0f9ff 100%);
}
html[data-theme='dark'] .services {
    background: linear-gradient(160deg, #13111f 0%, #1a1535 40%, #111827 100%);
}
.services::before {
    content: '';
    position: absolute;
    top: -80px;
    left: -80px;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.25), rgba(167, 139, 250, 0.15));
    filter: blur(50px);
    pointer-events: none;
}
.services::after {
    content: '';
    position: absolute;
    bottom: -80px;
    right: -60px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(129, 140, 248, 0.2), rgba(79, 70, 229, 0.1));
    filter: blur(50px);
    pointer-events: none;
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.8rem;
}
.service-card {
    background-color: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--box-shadow-color);
}
.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: 0 12px 30px var(--box-shadow-color);
}
.service-card i {
    color: var(--accent-color);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    background: linear-gradient(135deg, var(--secondary-accent), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.6rem;
    font-family: var(--font-primary);
    font-weight: 600;
}

/* Projects Section */
.project-grid { display: grid; gap: 2rem; }
.project-card {
    background-color: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px var(--box-shadow-color);
    text-align: left;
    display: flex;
    flex-direction: column;
}
.project-card:hover { 
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: 0 12px 30px var(--box-shadow-color); 
}
.project-image img { 
    transition: transform 0.4s ease; 
    height: 220px;
    width: 100%;
    object-fit: cover;
}
.project-card:hover .project-image img { transform: scale(1.05); }
.project-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
}
.project-tags span {
    background: linear-gradient(135deg, var(--accent-color), #8b5cf6);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 500;
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}
html[data-theme='dark'] .project-tags span {
    background: #e9d5ff;
    color: #581c87;
    font-weight: 600;
}
.project-title { font-size: 1.6rem; margin-bottom: 0.5rem; }
.project-description {
    font-size: 1.05rem;
    opacity: 0.8;
    margin-bottom: 1rem;
}
.project-links {
    justify-content: flex-start;
}
.btn-link { 
    display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 600;
    background: none; border: none; padding: 0; cursor: none;
    font-size: 1rem; font-family: var(--font-primary);
}
.btn-link:hover { text-decoration: underline; color: var(--accent-hover-color); }

/* Skills Section */
#skills {
    background-color: #f8f9fa; /* Light grey for light theme */
}
html[data-theme='dark'] #skills {
    background-color: #1F2937; /* A slightly lighter dark background */
}
.skills-subtitle {
    font-size: 1.8em;
    margin-top: 40px;
    margin-bottom: 20px;
    color: var(--text-color);
    text-align: center;
}
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 20px;
}
.skill-card {
    background-color: var(--card-bg-color);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 10px var(--box-shadow-color);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
}
.skill-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 20px var(--box-shadow-color);
}
.skill-card i {
    font-size: 3em;
    color: var(--accent-color);
}
.skill-card p {
    margin-top: 10px;
    font-weight: bold;
    color: var(--text-color);
}

/* Experience Section (Compact 2-Column Layout) */
.experience-container {
    display: flex;
    flex-direction: column; /* Stacks columns on mobile by default */
    gap: 40px;
    text-align: left;
}
.experience-column {
    flex: 1; /* Each column will take up equal space */
}
.experience-subheading {
    font-size: 1.8em;
    color: var(--text-color);
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--accent-color);
    display: inline-block;
}
.experience-item {
    position: relative;
    padding-left: 30px; /* Space for the decorative line */
    margin-bottom: 30px;
    border-left: 4px solid var(--border-color);
}
.experience-item::before { /* The circle on the line */
    content: '';
    position: absolute;
    left: -11px; /* Position over the border */
    top: 5px;
    width: 20px;
    height: 20px;
    background-color: var(--bg-color);
    border: 4px solid var(--accent-color);
    border-radius: 50%;
}
.experience-date {
    display: inline-block;
    padding: 4px 12px;
    font-size: 0.8em;
    font-weight: 600;
    background-color: var(--accent-color);
    color: #fff;
    border-radius: 50px;
    margin-bottom: 8px;
}
html[data-theme='dark'] .experience-date {
    color: var(--bg-dark);
}
.experience-title {
    font-size: 1.25em;
    margin-bottom: 5px;
    color: var(--text-color);
}
.experience-company {
    font-style: italic;
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 8px;
}
.experience-description {
    line-height: 1.6;
    opacity: 0.8;
}

/* Testimonials Section */
.testimonial-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; max-width: 800px; margin: 0 auto; }
.testimonial-card {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    background-color: var(--card-bg-color);
}
.testimonial-card::before { content: '“'; position: absolute; top: -10px; left: 15px; font-size: 5rem; font-family: var(--font-headings); color: var(--accent-color); opacity: 0.2; z-index: 0; }
.testimonial-text { font-style: italic; font-size: 1.1rem; margin-bottom: 1.5rem; position: relative; z-index: 1; }
.testimonial-author { display: flex; align-items: center; gap: 1rem; }
.testimonial-author img { width: 60px; height: 60px; border-radius: 50%; border: 2px solid var(--accent-color); }
.author-name { font-size: 1.1rem; margin: 0; font-family: var(--font-primary); font-weight: 600; }
.author-title { opacity: 0.7; margin: 0; }

/* Contact Section */
.contact p { max-width: 650px; margin: 0 auto 2.5rem; font-size: 1.1rem; }
.email-btn { display: inline-flex; align-items: center; gap: 0.6rem; }

/* Footer */
.footer {
    position: relative;
    background: linear-gradient(135deg, #111827 0%, #1e1b4b 100%);
    color: #fff;
    overflow: hidden;
}
.footer-wave {
    position: absolute;
    top: -1px;
    left: 0;
    width: 100%;
    color: var(--bg-color);
    line-height: 0;
}
.footer-wave svg {
    width: 100%;
    height: 60px;
}
.footer-content {
    padding: 5rem 0 2rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.footer-brand .footer-logo {
    font-size: 2.5rem;
    font-weight: 700;
    color: #fff;
    font-family: var(--font-headings);
}
.footer-brand .footer-logo span {
    color: var(--accent-color-light);
}
.footer-brand p {
    margin: 1rem 0 1.5rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    font-size: 0.95rem;
}
.footer-social {
    display: flex;
    gap: 0.75rem;
}
.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1rem;
    transition: all 0.3s ease;
}
.footer-social a:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}
.footer-social a[aria-label="LinkedIn"]:hover { background: #0077B5; }
.footer-social a[aria-label="GitHub"]:hover { background: #333; }
.footer-social a[aria-label="Twitter"]:hover { background: #1DA1F2; }
.footer-social a[aria-label="WhatsApp"]:hover { background: #25D366; }
.footer-links h4,
.footer-contact h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #fff;
    position: relative;
    padding-bottom: 0.75rem;
}
.footer-links h4::after,
.footer-contact h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-color-light));
    border-radius: 2px;
}
.footer-links ul {
    list-style: none;
}
.footer-links li {
    margin-bottom: 0.75rem;
}
.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
    font-size: 0.95rem;
}
.footer-links a:hover {
    color: #93c5fd;
    transform: translateX(5px);
}
.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.footer-contact i {
    color: var(--accent-color-light);
    width: 16px;
}
.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}
.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}
.footer-made .heart {
    color: #ef4444;
    animation: heartbeat 1.5s ease infinite;
}
@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}
@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}
@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
    .footer-brand {
        grid-column: 1 / -1;
        text-align: center;
        margin-bottom: 1rem;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .footer-links h4,
    .footer-contact h4 {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }
    .footer-links h4::after,
    .footer-contact h4::after {
        display: none;
    }
    .footer-links a,
    .footer-contact p {
        font-size: 0.75rem;
        word-break: break-all;
        overflow-wrap: anywhere;
    }
    .footer-social {
        justify-content: center;
    }
    .footer-contact p {
        flex-direction: row;
        align-items: center;
        gap: 0.6rem;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ------------------- */
/* 7. Preloader        */
/* ------------------- */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}
#preloader.hidden {
    opacity: 0;
    visibility: hidden;
}
.preloader-content {
    text-align: center;
}
.preloader-logo {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-color);
    display: block;
    margin-bottom: 1rem;
    animation: pulse 1.5s ease-in-out infinite;
}
.preloader-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    margin: 0 auto;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ------------------- */
/* 8. Typing Animation */
/* ------------------- */
.typed-text {
    color: var(--accent-color);
}
.cursor-blink {
    color: var(--secondary-accent);
    animation: blink 0.7s infinite;
}
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* ------------------- */
/* 9. Stats Section    */
/* ------------------- */
.stats-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-accent));
}
html[data-theme='dark'] .stats-section {
    background: linear-gradient(135deg, #6366f1, #14b8a6);
}
html[data-theme='dark'] .stat-item {
    color: #fff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}
html[data-theme='dark'] .stat-number,
html[data-theme='dark'] .stat-suffix {
    color: #fff;
    font-weight: 800;
}
html[data-theme='dark'] .contact {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.08) 0%, rgba(129, 140, 248, 0.05) 100%);
}
html[data-theme='dark'] .contact-card {
    background: rgba(30, 30, 40, 0.6);
    border-color: rgba(129, 140, 248, 0.2);
}
html[data-theme='dark'] .contact-form {
    background: rgba(30, 30, 40, 0.6);
    border-color: rgba(129, 140, 248, 0.2);
}
html[data-theme='dark'] .form-group input,
html[data-theme='dark'] .form-group select,
html[data-theme='dark'] .form-group textarea {
    background: rgba(20, 20, 30, 0.8);
    border-color: rgba(129, 140, 248, 0.3);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    text-align: center;
}
.stat-item {
    color: #fff;
}
.stat-number {
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-headings);
}
.stat-suffix {
    font-size: 2rem;
    font-weight: 700;
}
.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    margin-top: 0.5rem;
}

/* ------------------- */
/* 10. Tools Section   */
/* ------------------- */
.tools-section {
    background-color: var(--card-bg-color);
}
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}
.tool-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 1rem;
    background: var(--bg-color);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}
.tool-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 30px var(--box-shadow-color);
}
.tool-item i {
    font-size: 2rem;
    color: var(--accent-color);
}
.tool-item span {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-color);
}

/* ------------------- */
/* 11. FAQ Section     */
/* ------------------- */
.faq-section {
    background-color: var(--bg-color);
}
.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    background: var(--card-bg-color);
}
.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    text-align: left;
    transition: all 0.3s ease;
}
.faq-question:hover {
    color: var(--accent-color);
}
.faq-question i {
    transition: transform 0.3s ease;
    color: var(--accent-color);
}
.faq-item.active .faq-question i {
    transform: rotate(45deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 1.5rem 1.25rem;
}
.faq-answer p {
    color: var(--text-color);
    opacity: 0.8;
    line-height: 1.7;
}

/* ------------------- */
/* 12. Contact Form    */
/* ------------------- */
.contact {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.03) 0%, rgba(129, 140, 248, 0.05) 100%);
}
.contact-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}
.contact-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.5;
}
.contact-shape-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(129, 140, 248, 0.05));
    top: -100px;
    right: -50px;
}
.contact-shape-2 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, rgba(129, 140, 248, 0.1), rgba(79, 70, 229, 0.05));
    bottom: 50px;
    left: -80px;
}
.contact-shape-3 {
    width: 150px;
    height: 150px;
    border: 2px solid rgba(79, 70, 229, 0.1);
    top: 40%;
    right: 10%;
}
.contact-intro {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
}
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    max-width: 1100px;
    margin: 0 auto;
}
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}
.contact-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.5rem;
    background: var(--card-bg-color);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.contact-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: linear-gradient(180deg, var(--accent-color), var(--accent-color-light));
    opacity: 0;
    transition: opacity 0.3s ease;
}
.contact-card:hover {
    transform: translateX(5px);
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.1);
}
.contact-card:hover::before {
    opacity: 1;
}
.contact-card-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-color-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.contact-card-icon i {
    color: #fff;
    width: 22px;
    height: 22px;
}
.contact-card-content h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.35rem;
    color: var(--accent-color);
    font-weight: 600;
}
.contact-card-content a, .contact-card-content p {
    color: var(--text-color);
    font-size: 0.95rem;
    font-weight: 500;
}
.contact-card-content a:hover {
    color: var(--accent-color);
}
.contact-social {
    margin-top: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-color-light));
    border-radius: 16px;
    text-align: center;
}
.contact-social h4 {
    color: #fff;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-weight: 500;
}
.contact-social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
}
.contact-social-links a {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: all 0.3s ease;
}
.contact-social-links a:hover {
    background: #fff;
    color: var(--accent-color);
    transform: translateY(-3px);
}
.contact-social-links a i {
    font-size: 18px;
}
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: var(--card-bg-color);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
    background: var(--card-bg-color);
}
.form-group textarea {
    resize: vertical;
    min-height: 130px;
}
.contact-form .btn {
    align-self: stretch;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    font-size: 1rem;
}

/* ------------------- */
/* 13. WhatsApp Button */
/* ------------------- */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 55px;
    height: 55px;
    background: #25d366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 50;
    transition: all 0.3s ease;
}
.whatsapp-float:hover {
    transform: scale(1.1) translateY(-3px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
    color: #fff;
}

/* ------------------- */
/* 14. Project Overlay */
/* ------------------- */
.project-card .project-image {
    position: relative;
    overflow: hidden;
}
.project-card .project-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.9), rgba(20, 184, 166, 0.9));
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.project-card:hover .project-image::after {
    opacity: 0.85;
}

/* ------------------- */
/* 15. Modal & Helpers */
/* ------------------- */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    display: none; align-items: center; justify-content: center;
    z-index: 1000; padding: 1rem;
}
.modal-overlay.active { display: flex; }
.modal-content {
    background-color: var(--card-bg-color);
    border-radius: 16px; padding: 2rem;
    width: 90%; max-width: 800px; max-height: 90vh;
    overflow-y: auto; position: relative;
    animation: slideInUp 0.4s ease-out;
}
@keyframes slideInUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}
.modal-close-btn {
    position: absolute; top: 1rem; right: 1rem;
    background: none; border: none; cursor: none;
    padding: 0.5rem; color: var(--text-color);
}
.modal-title { font-size: 1.8rem; margin-bottom: 1.5rem; text-align: center; }
.modal-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}
.modal-gallery img { border-radius: 8px; width: 100%; }
#scroll-to-top { 
    position: fixed; bottom: 2rem; right: 2rem; z-index: 50; 
    background-color: var(--accent-color); color: #fff;
    border: none; width: 50px; height: 50px; border-radius: 50%; 
    display: flex; justify-content: center; align-items: center; 
    opacity: 0; visibility: hidden; transition: all 0.3s ease; cursor: none; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
#scroll-to-top.visible { opacity: 1; visibility: visible; }
#scroll-to-top:hover { transform: translateY(-3px); background-color: var(--accent-hover-color); }

/* ------------------- */
/* 16. Media Queries   */
/* ------------------- */
@media (max-width: 768px) {
    .container { padding: 0 1.5rem; }
    .hero-container { flex-direction: column-reverse; text-align: center; }
    .hero-image img { max-width: 280px; }
    .hero-buttons { justify-content: center; }
    .main-nav { display: none; }
    .mobile-menu-toggle { display: flex; }
    .social-links-header { display: none; }
    .header-cta { display: inline-block !important; padding: 5px 14px !important; font-size: 0.75rem !important; }

    .about-content-grid {
        flex-direction: column;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    .stat-number {
        font-size: 2rem;
    }

    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .whatsapp-float {
        bottom: 1.5rem;
        left: 1.5rem;
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
}
@media (min-width: 768px) and (max-width: 1024px) {
    /* Tablet: Hide main nav, show mobile menu + social icons + CTA */
    .main-nav { display: none; }
    .mobile-menu-toggle { display: flex; }
    .social-links-header { display: flex; }
    .header-cta { display: inline-block; }
}
@media (min-width: 1025px) {
    .main-nav { display: flex; gap: 2.5rem; align-items: center; }
    .nav-link {
        font-weight: 500;
        position: relative;
        padding: 0.5rem 0;
        font-size: 0.95rem;
        transition: all 0.3s ease;
        color: var(--text-color);
    }
    .nav-link::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 2px;
        background: linear-gradient(90deg, var(--accent-color), var(--secondary-accent));
        transition: width 0.3s ease;
    }
    /* Hover: just color and lift */
    .nav-link:hover {
        color: var(--accent-color);
        transform: translateY(-2px);
    }
    /* Active: gradient underline */
    .nav-link.active {
        color: var(--accent-color);
    }
    .nav-link.active::after {
        width: 100%;
    }
    html[data-theme='dark'] .nav-link {
        color: var(--text-dark);
    }
    html[data-theme='dark'] .nav-link:hover,
    html[data-theme='dark'] .nav-link.active {
        color: var(--accent-color);
    }
    .mobile-menu-toggle { display: none; }
    .social-links-header { display: flex; }
    .header-cta { display: inline-block; }
    .project-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
    
    .about-content-grid {
        flex-direction: row;
        text-align: left;
    }
    .about-image {
        flex-shrink: 0;
        width: 300px;
    }
    .about-text {
        flex-grow: 1;
    }

    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .contact-grid {
        grid-template-columns: 1fr 1.5fr;
    }

    .experience-container {
        flex-direction: row;
        gap: 60px;
    }
}
@media (min-width: 1024px) {
    .project-grid { grid-template-columns: repeat(3, 1fr); }
}