/* ========================================
   KIZITO NGONYE PORTFOLIO
   Modern CSS Architecture - Written from Scratch
   Full-Stack Web Developer & IT Support Professional
   ======================================== */

/* ========================================
   CSS VARIABLES (DESIGN TOKENS)
   ======================================== */
:root {
    /* Primary Colors */
    --primary-color: #6c3bdb;
    --primary-dark: #5528c4;
    --primary-light: #8358e6;
    --secondary-color: #2c3e50;
    
    /* Accent Colors */
    --accent-color: #e74c3c;
    --accent-light: #ff6b5b;
    
    /* Neutral Colors */
    --white: #ffffff;
    --off-white: #f8f9fa;
    --light-gray: #e9ecef;
    --gray: #6c757d;
    --dark-gray: #495057;
    --dark: #212529;
    --black: #000000;
    
    /* Text Colors */
    --text-primary: #2c3e50;
    --text-secondary: #2e2e2e;
    --text-light: #8a8fa3;
     
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-dark: #2c3e50;
    
    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: 'Poppins', sans-serif;
    --font-code: 'Courier New', monospace;
    
    /* Font Sizes */
    --font-xs: 0.75rem;      /* 12px */
    --font-sm: 0.875rem;     /* 14px */
    --font-base: 1rem;       /* 16px */
    --font-lg: 1.125rem;     /* 18px */
    --font-xl: 1.25rem;      /* 20px */
    --font-2xl: 1.5rem;      /* 24px */
    --font-3xl: 2rem;        /* 32px */
    --font-4xl: 2.5rem;      /* 40px */
    --font-5xl: 3rem;        /* 48px */
    
    /* Spacing */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    --spacing-2xl: 3rem;     /* 48px */
    --spacing-3xl: 4rem;     /* 64px */
    --spacing-4xl: 6rem;     /* 96px */
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-base: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Container */
    --container-max-width: 1200px;
    --container-padding: 20px;
}

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

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

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

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 { font-size: var(--font-5xl); }
h2 { font-size: var(--font-4xl); }
h3 { font-size: var(--font-3xl); }
h4 { font-size: var(--font-2xl); }
h5 { font-size: var(--font-xl); }
h6 { font-size: var(--font-lg); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

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

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

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

ul, ol {
    list-style: none;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-block;
    padding: 12px 32px;
    font-size: var(--font-base);
    font-weight: 600;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 2px solid transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

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

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

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

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

.btn-light {
    background-color: var(--white);
    color: var(--primary-color);
    border-color: var(--white);
}

.btn-light:hover {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

/* ========================================
   PRELOADER
   ======================================== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 99999;
    transition: opacity 0.5s ease-out;
}

.preloader.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--light-gray);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav-wrapper {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: var(--spacing-md) 0;
    gap: var(--spacing-2xl);
}

.logo img {
    height: 32px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    margin: 0 auto;
}

.nav-link {
    text-transform: uppercase;
    font-size: 16px;
    color: #333333;
    font-weight: 500;
    position: relative;
    padding: 1px var(--spacing-sm);
    transition: color var(--transition-base);
    border: 1px solid transparent;
}

.nav-link::after {
    content: '';
    position: absolute;
    top: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--primary-color);
    transition: width var(--transition-base);
}

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

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

.nav-link.active {
    border: 1px solid var(--primary-color);
    padding: 1px var(--spacing-sm);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    transition: all var(--transition-base);
    border-radius: 2px;
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-wrapper {
        gap: var(--spacing-lg);
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: fit-content;
        height: auto;
        background-color: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-md) var(--spacing-lg);
        gap: var(--spacing-sm);
        transition: right var(--transition-base);
        box-shadow: var(--shadow-lg);
        margin: 0;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
        position: absolute;
        right: var(--spacing-md);
        top: 50%;
        transform: translateY(-50%);
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    overflow: hidden;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: var(--primary-color);
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: var(--accent-color);
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: var(--primary-light);
    bottom: 15%;
    left: 15%;
    animation-delay: 4s;
}

.shape-4 {
    width: 250px;
    height: 250px;
    background: var(--primary-dark);
    top: 30%;
    right: 5%;
    animation-delay: 6s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    25% {
        transform: translateY(-30px) translateX(20px);
    }
    50% {
        transform: translateY(0) translateX(-20px);
    }
    75% {
        transform: translateY(30px) translateX(10px);
    }
}

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

.hero-text {
    animation: fadeInUp 1s ease-out;
    
}

.hero-greeting {
    font-size: var(--font-xl);
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-name {
    font-size: var(--font-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    text-transform: capitalize;
}

.hero-title {
    font-size: var(--font-2xl);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

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

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

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

.hero-social a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    color: var(--primary-color);
    font-size: var(--font-xl);
    transition: all var(--transition-base);
}

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

.hero-image {
    animation: fadeInRight 1s ease-out;
}

.image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    width: 100%;
}
 
.image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ========================================
   SECTIONS
   ======================================== */
section {
    padding: var(--spacing-4xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: var(--font-4xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.section-subtitle {
    font-size: var(--font-lg);
    color: var(--text-secondary);
    line-height: 1.8;
    text-align: left;
}

/* Alternate background colors for sections */
.about,
.skills,
.portfolio,
.contact {
    background-color: var(--bg-secondary);
}

.services,
.it-support {
    background-color: var(--white);
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-top: var(--spacing-3xl);
}

.info-title {
    font-size: var(--font-2xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    text-decoration: underline;
    text-decoration-color: var(--primary-color);
    text-underline-offset: 8px;
}

.info-grid {
    display: grid;
    gap: var(--spacing-md);
}

.info-item {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
    padding: var(--spacing-lg);
    background-color: var(--white);
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-base);
}

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

.info-item i {
    font-size: var(--font-2xl);
    color: var(--primary-color);
    min-width: 30px;
}

.info-item h4 {
    font-size: var(--font-base);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.info-item p {
    font-size: var(--font-base);
    color: var(--text-secondary);
    margin: 0;
}

.info-item a {
    color: var(--text-light);
    transition: color var(--transition-base);
}

.info-item a:hover {
    color: var(--primary-color);
}

/* Skill Bars */
.skill-bars {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.skill-bar {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.skill-info span {
    font-size: var(--font-base);
    font-weight: 600;
    color: var(--text-primary);
}

.skill-percentage {
    color: var(--primary-color);
}

.progress {
    width: 100%;
    height: 10px;
    background-color: var(--light-gray);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-full);
    transition: width 1.5s ease-out;
    width: 0;
}

/* ========================================
   SKILLS SECTION
   ======================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.skill-category {
    background-color: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.skill-category h3 {
    font-size: var(--font-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.skill-category h3 i {
    color: var(--primary-color);
    font-size: var(--font-2xl);
}

.skill-category ul {
    list-style: none;
}

.skill-category ul li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    font-size: var(--font-base);
    position: relative;
    padding-left: var(--spacing-lg);
}

.skill-category ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* ========================================
   SERVICES SECTION
   ======================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.service-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    color: var(--white);
    font-size: var(--font-3xl);
    transition: all var(--transition-base);
}

.service-icon:hover {
    transform: scale(1.15) rotate(180deg);
    transition: all var(--transition-base);
    box-shadow: 0 10px 25px rgba(108, 59, 219, 0.3);
}

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

.service-card p {
    font-size: var(--font-base);
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ========================================
   IT SUPPORT SECTION
   ======================================== */
.it-support {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: var(--white);
}

.it-support .section-header {
    margin-bottom: var(--spacing-3xl);
}

.it-support-content h2 {
    font-size: var(--font-4xl);
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.it-support-content > p {
    font-size: var(--font-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-2xl);
}

.it-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.it-feature {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
    padding: var(--spacing-lg);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.it-feature:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateX(5px);
}

.it-feature i {
    font-size: var(--font-2xl);
    color: var(--white);
    min-width: 30px;
}

.it-feature h4 {
    font-size: var(--font-lg);
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.it-feature p {
    font-size: var(--font-base);
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
}

/* ========================================
   CALL TO ACTION
   ======================================== */
.cta {
    background: linear-gradient(135deg, rgba(44, 62, 80, 0.95), rgba(108, 59, 219, 0.95)), 
                url('assets/images/call-to-action.jpg') center/cover no-repeat;
    background-attachment: fixed;
    color: var(--white);
    text-align: center;
    padding: var(--spacing-4xl) 0;
}

.cta-content h2 {
    font-size: var(--font-4xl);
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.cta-content p {
    font-size: var(--font-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   PORTFOLIO SECTION
   ======================================== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
    animation: fadeIn var(--transition-base);
}

/* Filter Buttons */
.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-3xl);
}

.filter-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--white);
    color: var(--text-primary);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-weight: 600;
    font-size: var(--font-sm);
    transition: all var(--transition-base);
}

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

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

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

.portfolio-item {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    opacity: 1;
    transform: scale(1);
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

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

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(108, 59, 219, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.portfolio-link,
.doc-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--white);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: all var(--transition-base);
}

.portfolio-link:hover,
.doc-link:hover {
    background-color: var(--primary-dark);
    color: var(--white);
    transform: scale(1.05);
}

.portfolio-info {
    padding: var(--spacing-xl);
}

.portfolio-category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--primary-light);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: var(--font-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.portfolio-info h3 {
    font-size: var(--font-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.portfolio-info p {
    font-size: var(--font-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

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

.portfolio-tags span {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--light-gray);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: var(--font-sm);
}

.portfolio-cta {
    text-align: center;
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact-info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.contact-card {
    background-color: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.contact-card i {
    font-size: var(--font-3xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.contact-card h3 {
    font-size: var(--font-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.contact-card p {
    font-size: var(--font-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.contact-card a {
    color: var(--text-light);
}

.contact-card a:hover {
    color: var(--primary-color);
}

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

.contact-form-wrapper {
    background-color: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-form-wrapper h3 {
    font-size: var(--font-2xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
}

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-size: var(--font-base);
    font-family: var(--font-primary);
    transition: border-color var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

.form-message {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.form-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.contact-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    height: 450px;
}

.contact-map iframe {
    width: 100%;
    height: 100%;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background-color: var(--dark);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.footer-logo img {
    height: 50px;
    margin: 0 auto var(--spacing-lg);
}

.footer-text {
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-base);
    line-height: 1.8;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.footer-social a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: var(--white);
    font-size: var(--font-xl);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-sm);
    margin: 0;
}

/* ========================================
   BACK TO TOP BUTTON
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: var(--font-xl);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.visible {
    display: flex;
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
}

/* ========================================
   WHATSAPP FLOAT BUTTON
   ======================================== */
.whatsapp-float {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: var(--white);
    border-radius: 50%;
    font-size: var(--font-3xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    z-index: 999;
}

.whatsapp-float:hover {
    background-color: #128c7e;
    transform: scale(1.1);
    color: var(--white);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
    :root {
        --font-5xl: 2.5rem;
        --font-4xl: 2rem;
        --font-3xl: 1.75rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --font-5xl: 2rem;
        --font-4xl: 1.75rem;
        --font-3xl: 1.5rem;
        --spacing-4xl: 3rem;
    }
    
    section {
        padding: var(--spacing-3xl) 0;
    }
    
    .hero {
        padding-top: 80px;
        min-height: auto;
    }
    
    .hero-content {
        gap: var(--spacing-2xl);
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .it-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 15px;
    }
    
    .hero-name {
        font-size: var(--font-4xl);
    }
    
    .hero-title {
        font-size: var(--font-xl);
    }
    
    .section-title {
        font-size: var(--font-3xl);
    }
}