/* ==========================================
   MODERN WEB DEVELOPER PORTFOLIO - CSS
   ========================================== */

/* ==========================================
   CSS VARIABLES & ROOT SETTINGS
   ========================================== */
:root {
    /* Color Palette - Modern Professional */
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    --color-secondary: #0f172a;
    --color-accent: #06b6d4;
    
    /* Neutral Colors */
    --color-bg: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary: #f1f5f9;
    --color-surface: #ffffff;
    --color-text: #0f172a;
    --color-text-secondary: #475569;
    --color-text-light: #64748b;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    
    /* Gradient Backgrounds */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
    --gradient-surface: linear-gradient(to bottom, #ffffff 0%, #f8fafc 100%);
    --gradient-hero: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
    
    /* Typography */
    --font-primary: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Instrument Serif', Georgia, serif;
    
    /* Spacing Scale */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* ==========================================
   TYPOGRAPHY
   ========================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-secondary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

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

/* ==========================================
   LAYOUT UTILITIES
   ========================================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.section-number {
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
}

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

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

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn-text {
    position: relative;
    z-index: 1;
}

/* ==========================================
   NAVIGATION
   ========================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-base);
}

.nav.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-secondary);
}

.logo-bracket {
    color: var(--color-primary);
    font-weight: 700;
}

.logo-text {
    margin: 0 0.25rem;
}

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

.nav-link {
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: 0.5rem 0;
    position: relative;
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 0.375rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-secondary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero-background::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

.hero-content {
    max-width: 900px;
    margin-bottom: var(--space-3xl);
}

.hero-label {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.hero-title {
    margin-bottom: var(--space-lg);
    line-height: 1.1;
}

.title-line {
    display: block;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin-bottom: var(--space-xl);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-xl);
    max-width: 900px;
}

.stat-item {
    text-align: center;
    padding: var(--space-lg);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 400;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==========================================
   ABOUT SECTION
   ========================================== */
.about {
    padding: var(--space-3xl) 0;
    background: var(--color-bg);
}

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

.about-text {
    max-width: 600px;
}

.lead-text {
    font-size: 1.25rem;
    color: var(--color-text);
    font-weight: 500;
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.about-text p {
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
    line-height: 1.8;
}

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

.highlight-card {
    padding: var(--space-xl);
    background: var(--gradient-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.highlight-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--transition-base);
}

.highlight-card:hover::before {
    transform: scaleY(1);
}

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

.highlight-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
    color: var(--color-secondary);
}

.highlight-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ==========================================
   EXPERTISE SECTION
   ========================================== */
.expertise {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-secondary);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.expertise-card {
    padding: var(--space-xl);
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.expertise-card:hover::before {
    transform: scaleX(1);
}

.expertise-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.card-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    color: var(--color-primary);
    transition: all var(--transition-base);
}

.expertise-card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
}

.expertise-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
    color: var(--color-secondary);
}

.expertise-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ==========================================
   SERVICES SECTION
   ========================================== */
.services {
    padding: var(--space-3xl) 0;
    background: var(--color-bg);
}

.services-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.service-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-xl);
    padding: var(--space-xl);
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

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

.service-featured {
    background: var(--gradient-surface);
    border: 2px solid var(--color-primary);
    position: relative;
    overflow: hidden;
}

.service-featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(6, 182, 212, 0.03) 100%);
    pointer-events: none;
}

.service-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 400;
    color: var(--color-primary);
    opacity: 0.3;
    line-height: 1;
}

.service-title {
    font-size: 1.75rem;
    margin-bottom: var(--space-md);
    color: var(--color-secondary);
}

.service-description {
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.service-features {
    display: grid;
    gap: var(--space-sm);
}

.service-features li {
    padding-left: 1.75rem;
    position: relative;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.service-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-md);
}

.feature-column h4 {
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
    color: var(--color-primary);
    font-weight: 600;
}

.feature-column ul {
    display: grid;
    gap: var(--space-sm);
}

.feature-column li {
    padding-left: 1.75rem;
    position: relative;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.feature-column li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

/* ==========================================
   APPROACH SECTION
   ========================================== */
.approach {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-secondary);
}

.approach-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.approach-item {
    padding: var(--space-xl);
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    text-align: center;
}

.approach-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.approach-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.3);
    transition: all var(--transition-base);
}

.approach-item:hover .approach-icon {
    transform: scale(1.15) rotate(360deg);
}

.approach-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
    color: var(--color-secondary);
}

.approach-item p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ==========================================
   CLIENTS SECTION
   ========================================== */
.clients {
    padding: var(--space-3xl) 0;
    background: var(--color-bg);
}

.clients-content {
    text-align: center;
}

.clients-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-2xl);
    color: var(--color-secondary);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.client-type {
    padding: var(--space-xl);
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.client-type:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.client-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: var(--space-md);
}

.client-type h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
    color: var(--color-secondary);
}

.client-type p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ==========================================
   WHY ME SECTION
   ========================================== */
.why-me {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-secondary);
}

.why-title {
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: var(--space-2xl);
    color: var(--color-secondary);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.why-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.why-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
}

.why-marker {
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    margin-top: 0.5rem;
    background: var(--gradient-primary);
    border-radius: 50%;
}

.why-item h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
    color: var(--color-secondary);
}

.why-item p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ==========================================
   CONTACT SECTION
   ========================================== */
.contact {
    padding: var(--space-3xl) 0;
    background: var(--color-bg);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: var(--space-md);
    color: var(--color-secondary);
}

.contact-description {
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.contact-item:hover {
    background: var(--color-bg-tertiary);
    transform: translateX(5px);
}

.contact-item svg {
    flex-shrink: 0;
    color: var(--color-primary);
}

.contact-form-wrapper {
    position: relative;
}

.contact-form {
    padding: var(--space-xl);
    background: var(--gradient-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 500;
    color: var(--color-text);
    font-size: 0.9375rem;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-message {
    margin-top: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background: var(--color-secondary);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-xl);
}

.footer-brand p {
    margin-top: var(--space-md);
    line-height: 1.7;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--space-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
}

.footer-column h4 {
    color: white;
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
    font-weight: 600;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-base);
}

.footer-column a:hover {
    color: white;
    padding-left: 0.5rem;
}

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --space-3xl: 4rem;
        --space-2xl: 3rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: var(--space-xl);
        gap: var(--space-md);
        align-items: flex-start;
        transition: left var(--transition-slow);
        box-shadow: var(--shadow-xl);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .service-item {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .service-number {
        font-size: 2rem;
    }
    
    .service-features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }
}

/* ==========================================
   ACCESSIBILITY
   ========================================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}