/* ======================================
   Kalsi Tech Solutions - Services Website
   Custom CSS Stylesheet
   ====================================== */

/* ----------------
   CSS Variables
   ---------------- */
:root {
    /* Colors */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #10b981;
    --secondary-dark: #059669;

    /* Neutrals */
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray-900: #1e293b;
    --gray-800: #334155;
    --gray-700: #475569;
    --gray-600: #64748b;
    --gray-500: #94a3b8;
    --gray-400: #cbd5e1;
    --gray-300: #e2e8f0;
    --gray-200: #f1f5f9;
    --gray-100: #f8fafc;
    --white: #ffffff;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --gradient-hero: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;

    /* Theme-specific (Light Mode - Default) */
    --bg-primary: var(--white);
    --bg-secondary: var(--gray-100);
    --bg-card: var(--white);
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-700);
    --text-muted: var(--gray-600);
    --border-color: var(--gray-200);
}

/* ----------------
   Dark Theme
   ---------------- */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #e2e8f0;
    --text-muted: #94a3b8;
    --border-color: #334155;

    /* Adjusted colors for dark mode */
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --secondary: #34d399;

    /* Dark mode shadows (more subtle) */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.3);

    /* Dark mode gradients */
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

/* Theme Transition */
body,
body * {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* ----------------
   Reset & Base
   ---------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-secondary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* Focus Visible for Keyboard Accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}

/* Skip to Content Link (Accessibility) */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    z-index: var(--z-modal);
    font-weight: 600;
}

.skip-link:focus {
    top: var(--spacing-md);
    color: var(--white);
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ----------------
   Utility Classes
   ---------------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-3xl) 0;
}

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

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--white);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--gray-500);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--dark);
    border-color: var(--white);
}

.btn-block {
    width: 100%;
}

/* ----------------
   Navigation
   ---------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--spacing-md) 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-sm) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
}

.nav-logo:hover {
    color: var(--white);
}

/* Logo Icon Image */
.logo-icon {
    height: 50px;
    width: auto;
    border-radius: var(--radius-md);
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.nav-toggle {
    display: none;
    color: var(--white);
    font-size: var(--font-size-xl);
    padding: var(--spacing-sm);
}

/* Theme Toggle Button */
.theme-toggle {
    background: transparent;
    border: 2px solid var(--gray-600);
    color: var(--gray-300);
    font-size: var(--font-size-lg);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    margin-left: auto;
    margin-right: var(--spacing-lg);
}

.theme-toggle:hover {
    background: var(--gray-700);
    border-color: var(--primary);
    color: var(--white);
    transform: rotate(15deg);
}

[data-theme="dark"] .theme-toggle {
    border-color: var(--primary-light);
    color: var(--primary-light);
}

[data-theme="dark"] .theme-toggle:hover {
    background: var(--primary);
    color: var(--white);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--gray-300);
    font-weight: 500;
    padding: var(--spacing-sm) 0;
    position: relative;
}

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

.nav-link:hover {
    color: var(--white);
}

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

.nav-cta {
    background: var(--gradient-primary);
    color: var(--white) !important;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ----------------
   Hero Section
   ---------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    overflow: visible;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
    animation: heroBgShift 8s ease-in-out infinite alternate;
}

@keyframes heroBgShift {
    0% {
        background-image:
            radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
            radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
    }
    50% {
        background-image:
            radial-gradient(circle at 40% 60%, rgba(37, 99, 235, 0.2) 0%, transparent 50%),
            radial-gradient(circle at 60% 40%, rgba(16, 185, 129, 0.15) 0%, transparent 50%);
    }
    100% {
        background-image:
            radial-gradient(circle at 60% 70%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
            radial-gradient(circle at 30% 30%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
    }
}

.hero-content {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    padding: var(--spacing-3xl) 0;
}

.hero-greeting {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-400);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.hero-greeting i {
    color: #fbbf24;
    animation: wave 2s ease-in-out infinite;
}

@keyframes wave {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(20deg); }
    75% { transform: rotate(-10deg); }
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    font-weight: 500;
    color: var(--gray-300);
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--gray-400);
    max-width: 500px;
    margin-bottom: var(--spacing-xl);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
}

.stat {
    text-align: center;
}

.stat-number {
    display: inline;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--white);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image {
    position: relative;
    width: 350px;
    height: 350px;
}

.hero-avatar {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 50%;
    font-size: 8rem;
    color: var(--white);
    box-shadow: var(--shadow-xl);
}

.floating-icon {
    position: absolute;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-2xl);
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
}

.icon-1 {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    color: #ff9900;
    animation-delay: 0s;
}

.icon-2 {
    top: 50%;
    right: -20px;
    transform: translateY(-50%);
    color: #3776ab;
    animation-delay: 0.5s;
}

.icon-3 {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    color: #2496ed;
    animation-delay: 1s;
}

.icon-4 {
    top: 50%;
    left: -20px;
    transform: translateY(-50%);
    color: #f7df1e;
    animation-delay: 1.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) translateX(-50%); }
    50% { transform: translateY(-15px) translateX(-50%); }
}

.icon-2, .icon-4 {
    animation-name: float-side;
}

@keyframes float-side {
    0%, 100% { transform: translateY(-50%) translateX(0); }
    50% { transform: translateY(-50%) translateX(-10px); }
}

.scroll-down {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    color: var(--gray-500);
    font-size: var(--font-size-xl);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ----------------
   Section Headers
   ---------------- */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--gray-100);
    color: var(--primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--dark);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ----------------
   About Section
   ---------------- */
.about {
    background: var(--gray-100);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.about-text p {
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-lg);
    color: var(--gray-700);
}

.about-skills {
    margin-top: var(--spacing-xl);
}

.about-skills h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    color: var(--dark);
    margin-bottom: var(--spacing-md);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--white);
    color: var(--gray-700);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.skill-tag:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--primary);
}

.about-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.about-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.about-card-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.about-card h4 {
    font-size: var(--font-size-lg);
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
}

.about-card p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

/* ----------------
   Services Section
   ---------------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.service-card {
    position: relative;
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    transition: all var(--transition-base);
    border: 1px solid var(--gray-200);
}

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

.service-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.service-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.service-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
    color: var(--primary);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    background: var(--gradient-primary);
    color: var(--white);
    transform: scale(1.1);
}

.service-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--dark);
    margin-bottom: var(--spacing-md);
}

.service-card > p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.service-features {
    margin-bottom: var(--spacing-lg);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-700);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.service-features li i {
    color: var(--secondary);
    font-size: var(--font-size-xs);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.service-link i {
    transition: transform var(--transition-fast);
}

.service-link:hover i {
    transform: translateX(5px);
}

/* ----------------
   Why Me Section
   ---------------- */
.why-me {
    background: var(--gradient-hero);
}

.why-me .section-tag {
    background: rgba(255, 255, 255, 0.1);
    color: var(--primary-light);
}

.why-me .section-title {
    color: var(--white);
}

.why-me .section-subtitle {
    color: var(--gray-400);
}

.why-me-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.why-card {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    transition: all var(--transition-base);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
    border-color: var(--primary);
}

.why-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    font-size: var(--font-size-2xl);
    margin: 0 auto var(--spacing-lg);
}

.why-card h3 {
    font-size: var(--font-size-lg);
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.why-card p {
    color: var(--gray-400);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

[data-theme="dark"] .author-info h4 {
    color: var(--text-primary);
}

[data-theme="dark"] .author-info p {
    color: var(--text-muted);
}

[data-theme="dark"] .testimonial-author {
    border-top-color: var(--border-color);
}

/* ----------------
   Contact Section
   ---------------- */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-3xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--gray-100);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.contact-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xl);
}

.contact-details h4 {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin-bottom: var(--spacing-xs);
}

.contact-details a,
.contact-details p {
    color: var(--dark);
    font-weight: 500;
}

.social-links {
    margin-top: var(--spacing-lg);
}

.social-links h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
    color: var(--dark);
    margin-bottom: var(--spacing-md);
}

.social-icons {
    display: flex;
    gap: var(--spacing-md);
}

.social-icon {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-lg);
    transition: all var(--transition-base);
}

.social-icon:hover {
    background: var(--gradient-primary);
    color: var(--white);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    color: var(--dark);
    background: var(--gray-100);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-500);
}

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

/* ----------------
   Footer
   ---------------- */
.footer {
    background: var(--dark);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-logo .logo-icon {
    height: 50px;
    width: auto;
}

.footer-brand p {
    color: var(--gray-500);
    max-width: 300px;
}

.footer-links h4,
.footer-social h4 {
    font-size: var(--font-size-base);
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-links a {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-social .social-icons {
    gap: var(--spacing-sm);
}

.footer-social .social-icons a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-800);
    color: var(--gray-400);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
}

.footer-social .social-icons a:hover {
    background: var(--primary);
    color: var(--white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--gray-800);
}

.footer-bottom p {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

.footer-bottom i {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* ----------------
   Back to Top
   ---------------- */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
}

/* ----------------
   Responsive
   ---------------- */
@media (max-width: 1024px) {
    .hero {
        min-height: auto;
        padding-top: 100px;
        padding-bottom: var(--spacing-3xl);
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-visual {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
        order: -1;
        margin-bottom: var(--spacing-xl);
    }

    .hero-image {
        width: 280px;
        height: 280px;
        margin: 0 auto;
        position: relative;
    }

    .hero-avatar {
        font-size: 6rem;
    }

    .floating-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-xl);
    }

    .icon-2 {
        right: -10px;
    }

    .icon-4 {
        left: -10px;
    }

    .hero-description {
        margin: 0 auto var(--spacing-xl);
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

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

    .why-me-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .logo-icon {
        height: 40px;
        width: auto;
    }

    .logo-text {
        font-size: var(--font-size-lg);
    }

    .theme-toggle {
        margin-left: 0;
        margin-right: var(--spacing-sm);
        width: 36px;
        height: 36px;
        font-size: var(--font-size-base);
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        flex-direction: column;
        background: var(--dark);
        padding: var(--spacing-3xl) var(--spacing-xl);
        gap: var(--spacing-lg);
        transition: right var(--transition-base);
        box-shadow: var(--shadow-xl);
    }

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

    .hero-visual {
        display: flex !important;
    }

    .hero-image {
        width: 250px;
        height: 250px;
    }

    .hero-avatar {
        font-size: 5rem;
    }

    .floating-icon {
        width: 45px;
        height: 45px;
        font-size: var(--font-size-lg);
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-xl);
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: var(--spacing-lg);
    }

    .stat {
        flex: 0 0 calc(50% - var(--spacing-md));
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

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

    .why-me-grid {
        grid-template-columns: 1fr;
    }

    .rating {
        margin-left: 0;
        margin-top: var(--spacing-sm);
        width: 100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        margin: 0 auto;
    }

    .footer-brand p {
        margin: 0 auto;
    }

    .footer-social .social-icons {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-visual {
        display: flex !important;
    }

    .hero-image {
        width: 200px;
        height: 200px;
    }

    .hero-avatar {
        font-size: 4rem;
    }

    .floating-icon {
        width: 36px;
        height: 36px;
        font-size: var(--font-size-base);
    }

    .icon-2 {
        right: -5px;
    }

    .icon-4 {
        left: -5px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn-outline {
        border-color: var(--white);
        color: var(--dark);
        background: var(--white);
    }

    .contact-form {
        padding: var(--spacing-lg);
    }
}

/* ======================================
   Dark Mode Overrides
   ====================================== */

/* Section backgrounds */
[data-theme="dark"] .about {
    background: var(--bg-secondary);
}

[data-theme="dark"] .services {
    background: var(--bg-primary);
}

[data-theme="dark"] .why-me {
    background: var(--bg-secondary);
}

[data-theme="dark"] .contact {
    background: var(--bg-primary);
}

/* Cards */
[data-theme="dark"] .about-card,
[data-theme="dark"] .service-card,
[data-theme="dark"] .why-card,
[data-theme="dark"] .contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .skill-tag {
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

/* Text colors */
[data-theme="dark"] .section-title,
[data-theme="dark"] .about-card h4,
[data-theme="dark"] .service-card h3,
[data-theme="dark"] .why-card h3,
[data-theme="dark"] .about-skills h3 {
    color: var(--text-primary);
}

[data-theme="dark"] .section-subtitle,
[data-theme="dark"] .about-text p,
[data-theme="dark"] .service-card p,
[data-theme="dark"] .about-card p,
[data-theme="dark"] .why-card p {
    color: var(--text-secondary);
}

[data-theme="dark"] .section-tag {
    background: rgba(59, 130, 246, 0.2);
    color: var(--primary-light);
}

/* Contact section */
[data-theme="dark"] .contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .form-group input::placeholder,
[data-theme="dark"] .form-group textarea::placeholder {
    color: var(--text-muted);
}

[data-theme="dark"] .form-group label {
    color: var(--text-secondary);
}

/* Footer */
[data-theme="dark"] .footer {
    background: var(--bg-secondary);
}

[data-theme="dark"] .footer-links a,
[data-theme="dark"] .footer-bottom p {
    color: var(--text-muted);
}

[data-theme="dark"] .footer-links a:hover {
    color: var(--primary-light);
}

/* Back to top button */
[data-theme="dark"] .back-to-top {
    background: var(--primary);
    color: var(--white);
}

/* Service card featured badge */
[data-theme="dark"] .service-card.featured {
    border-color: var(--primary);
}

/* Contact info cards */
[data-theme="dark"] .contact-details h4 {
    color: var(--text-primary);
}

[data-theme="dark"] .contact-details p,
[data-theme="dark"] .contact-details a {
    color: var(--text-secondary);
}

/* Social links in dark mode */
[data-theme="dark"] .social-links h4 {
    color: var(--text-primary);
}

[data-theme="dark"] .social-icon {
    background: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-secondary);
}

[data-theme="dark"] .social-icon:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

/* ======================================
   Animations & Visual Enhancements
   ====================================== */

/* --- Animated Gradient Border on Featured Card --- */
.service-card.featured {
    border: 2px solid transparent;
    background-clip: padding-box;
    position: relative;
}

.service-card.featured::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: calc(var(--radius-xl) + 2px);
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary-light), var(--primary));
    background-size: 300% 100%;
    z-index: -1;
    animation: gradientBorder 4s ease infinite;
}

@keyframes gradientBorder {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* --- Button Shimmer Effect --- */
.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -100%;
    width: 50%;
    height: 200%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: skewX(-25deg);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 200%; }
}

/* --- Button Ripple Effect --- */
.btn {
    position: relative;
    overflow: hidden;
}

.btn .ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* --- Hero Avatar Rotating Glow Ring --- */
.hero-avatar::before {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, var(--primary), var(--secondary), var(--primary-light), var(--primary));
    animation: rotateGlow 4s linear infinite;
    z-index: -1;
}

@keyframes rotateGlow {
    to { transform: rotate(360deg); }
}

/* --- Floating Particles (Hero Background) --- */
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(2px 2px at 10% 20%, rgba(255, 255, 255, 0.15) 50%, transparent 50%),
        radial-gradient(2px 2px at 30% 60%, rgba(255, 255, 255, 0.1) 50%, transparent 50%),
        radial-gradient(2px 2px at 50% 30%, rgba(255, 255, 255, 0.12) 50%, transparent 50%),
        radial-gradient(2px 2px at 70% 70%, rgba(255, 255, 255, 0.08) 50%, transparent 50%),
        radial-gradient(2px 2px at 90% 40%, rgba(255, 255, 255, 0.1) 50%, transparent 50%),
        radial-gradient(3px 3px at 15% 85%, rgba(59, 130, 246, 0.2) 50%, transparent 50%),
        radial-gradient(3px 3px at 85% 15%, rgba(16, 185, 129, 0.2) 50%, transparent 50%),
        radial-gradient(2px 2px at 45% 90%, rgba(255, 255, 255, 0.1) 50%, transparent 50%),
        radial-gradient(2px 2px at 65% 10%, rgba(255, 255, 255, 0.08) 50%, transparent 50%),
        radial-gradient(2px 2px at 25% 45%, rgba(255, 255, 255, 0.12) 50%, transparent 50%);
    animation: particleFloat 20s linear infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes particleFloat {
    0% { transform: translateY(0); }
    100% { transform: translateY(-30px); }
}

/* Ensure hero content stays above particles */
.hero-content {
    z-index: 1;
}

/* --- Typed Text Effect --- */
.typed-text-wrapper {
    display: inline;
}

.typed-text {
    color: var(--primary-light);
    font-weight: 600;
}

.typed-cursor {
    color: var(--primary-light);
    animation: blink 0.7s step-end infinite;
    font-weight: 300;
}

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

/* --- Stat Counter Styles --- */
.stat-number {
    display: inline;
}

.stat-suffix {
    display: inline;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--white);
}

/* --- Enhanced Scroll Animations --- */
[data-animate] {
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-animate="fade-up"] {
    transform: translateY(40px);
}

[data-animate="fade-down"] {
    transform: translateY(-40px);
}

[data-animate="fade-left"] {
    transform: translateX(60px);
}

[data-animate="fade-right"] {
    transform: translateX(-60px);
}

[data-animate="zoom-in"] {
    transform: scale(0.8);
}

[data-animate="zoom-out"] {
    transform: scale(1.1);
}

[data-animate].animated {
    opacity: 1;
    transform: translate(0) scale(1);
}

/* --- Section Tag Scale-In --- */
.section-tag {
    animation: scaleIn 0.6s ease backwards;
}

@keyframes scaleIn {
    from {
        transform: scale(0.5);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* --- Section Title Animated Underline --- */
.section-title {
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.8s ease;
}

.section-header.animate-title .section-title::after {
    width: 80px;
}

/* --- Service Card Icon Glow --- */
.service-card:hover .service-icon {
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.4), 0 0 40px rgba(37, 99, 235, 0.2);
}

/* --- Card 3D Tilt on Hover --- */
.service-card {
    transform-style: preserve-3d;
    perspective: 1000px;
}

.service-card:hover {
    transform: translateY(-5px) rotateX(2deg) rotateY(-2deg);
}

/* --- Why Card Icon Spin on Hover --- */
.why-card:hover .why-icon {
    animation: iconPop 0.4s ease;
}

@keyframes iconPop {
    0% { transform: scale(1); }
    50% { transform: scale(1.2) rotate(10deg); }
    100% { transform: scale(1); }
}

/* --- Skill Tag Bounce-In --- */
.skill-tag {
    animation: none;
    transition: all var(--transition-fast), transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.skill-tag:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-md);
    color: var(--primary);
}

/* --- Contact Card Slide-In --- */
.contact-card {
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 0;
    background: var(--gradient-primary);
    transition: height 0.3s ease;
}

.contact-card:hover::before {
    height: 100%;
}

/* --- Floating Icon Enhanced --- */
.floating-icon {
    transition: box-shadow 0.3s ease;
}

.floating-icon:hover {
    box-shadow: var(--shadow-xl), 0 0 20px rgba(37, 99, 235, 0.3);
}

/* ======================================
   WhatsApp Floating Button
   ====================================== */
.whatsapp-float {
    position: fixed;
    bottom: var(--spacing-xl);
    left: var(--spacing-xl);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: var(--white);
    border-radius: 50%;
    font-size: 2rem;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
    animation: whatsappPulse 2s ease-in-out infinite;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
    color: var(--white);
    animation: none;
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.whatsapp-tooltip {
    position: absolute;
    left: 70px;
    background: var(--dark);
    color: var(--white);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: all var(--transition-base);
    pointer-events: none;
}

.whatsapp-tooltip::before {
    content: '';
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-right-color: var(--dark);
}

@keyframes whatsappPulse {
    0% { box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4), 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4); }
}

/* ======================================
   Service Areas Section
   ====================================== */
.service-areas {
    background: var(--bg-secondary);
}

.areas-content {
    max-width: 1000px;
    margin: 0 auto;
}

.areas-description {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.8;
}

.areas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.area-group {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.area-group:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.area-group h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--primary);
}

.area-group h3 i {
    color: var(--primary);
}

.area-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.area-list li {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    padding: var(--spacing-xs) 0;
    position: relative;
    padding-left: var(--spacing-md);
}

.area-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: 700;
    font-size: var(--font-size-xs);
}

.areas-cta-text {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.areas-cta-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary);
    font-weight: 600;
    margin-top: var(--spacing-sm);
    transition: gap var(--transition-fast);
}

.areas-cta-link:hover {
    gap: var(--spacing-md);
}

/* --- Service Areas Responsive --- */
@media (max-width: 1024px) {
    .areas-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .areas-grid {
        grid-template-columns: 1fr;
    }

    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: var(--spacing-lg);
        left: var(--spacing-lg);
    }

    .whatsapp-tooltip {
        display: none;
    }
}

/* --- Dark Mode for Service Areas --- */
[data-theme="dark"] .service-areas {
    background: var(--bg-secondary);
}

[data-theme="dark"] .area-group {
    background: var(--bg-card);
    border-color: var(--border-color);
}

[data-theme="dark"] .areas-cta-text {
    background: var(--bg-card);
    border-color: var(--border-color);
}

/* --- Dark Mode for WhatsApp --- */
[data-theme="dark"] .whatsapp-tooltip {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .whatsapp-tooltip::before {
    border-right-color: var(--bg-card);
}