/* ============================================
   PORTFOLIO WEBSITE - STYLES
   Professional CSS with modern design patterns
   ============================================ */

/* ============================================
   CSS VARIABLES - COLOR PALETTE
   ============================================ */
:root {
    --primary: #A4C639;
    --primary-dark: #8AAD2E;
    --secondary: #2C3E50;
    --secondary-dark: #1A252F;
    --accent: #5DADE2;
    --light: #F8F9FA;
    --white: #FFFFFF;
    --dark: #2C3E50;
    --gray: #7F8C8D;
    --success: #27AE60;
    --error: #E74C3C;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   ACCESSIBILITY - FOCUS STYLES
   ============================================ */
*:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}

.btn:focus-visible,
.nav-menu a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(164, 198, 57, 0.2);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-circle {
    width: 50px;
    height: 50px;
    background: var(--white);
    border: 2px solid var(--primary);
    padding: 0px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-weight: 800;
    font-size: 20px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
}

.nav-menu {
    display: flex;
    gap: 40px;
    list-style: none;
    align-items: center;
}

.nav-menu a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s;
}

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

.hire-btn {
    background: var(--secondary);
    color: var(--white);
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hire-btn:hover {
    background: var(--secondary-dark);
    transform: translateY(-2px);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--dark);
    z-index: 1001;
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 77px;
    right: -100%;
    width: 280px;
    height: calc(100vh - 77px);
    background: var(--white);
    box-shadow: -2px 0 10px rgba(0,0,0,0.1);
    padding: 40px 24px;
    transition: right 0.3s ease;
    z-index: 999;
    flex-direction: column;
    gap: 24px;
}

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

.mobile-nav a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    padding: 12px 0;
    border-bottom: 1px solid var(--light);
    transition: color 0.3s;
}

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

.mobile-nav .hire-btn {
    margin-top: 20px;
    justify-content: center;
}

.overlay {
    display: none;
    position: fixed;
    top: 77px;
    left: 0;
    width: 100%;
    height: calc(100vh - 77px);
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.overlay.active {
    pointer-events: auto;
    opacity: 1;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    margin-top: 80px;
    padding: 100px 0;
    background: linear-gradient(135deg, #FBF8F3 0%, #F5F1E8 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(164, 198, 57, 0.1), transparent);
    border-radius: 50%;
    transform: translateZ(0);
    will-change: transform;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text {
    max-width: 550px;
}

.hero-label {
    display: inline-block;
    background: var(--white);
    border: 2px solid var(--dark);
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
}

.hero h1 span {
    color: var(--primary);
}

.hero-subtitle {
    font-size: 18px;
    color: var(--gray);
    margin-bottom: 32px;
    line-height: 1.8;
}

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

.btn {
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    cursor: pointer;
}

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

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

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

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

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-circle {
    width: 400px;
    height: 400px;
    background: var(--primary);
    border-radius: 50%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    color: white;
    will-change: transform;
    transform: translateZ(0);
}

.hero-badge {
    position: absolute;
    background: var(--white);
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 8px;
    will-change: transform;
    backface-visibility: hidden;
}

.badge-1 {
    top: 20%;
    right: -20px;
}

.badge-2 {
    bottom: 15%;
    left: -20px;
    background: var(--secondary);
    color: var(--white);
}

.badge-icon {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 16px;
}

/* ============================================
   SKILLS BAR
   ============================================ */
.skills-bar {
    background: var(--primary);
    padding: 20px 0;
    overflow: hidden;
    border-top: 3px solid var(--dark);
    border-bottom: 3px solid var(--dark);
}

.skills-scroll {
    display: flex;
    gap: 60px;
    animation: scroll 20s linear infinite;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    white-space: nowrap;
    color: var(--dark);
}

.skill-star {
    color: var(--dark);
    font-size: 20px;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    padding: 100px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
}

.section-title span {
    color: var(--primary);
}

.section-subtitle {
    font-size: 16px;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.service-card {
    background: var(--light);
    padding: 32px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s;
    will-change: transform;
    backface-visibility: hidden;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--white);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    color: var(--primary);
}

.service-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--gray);
    font-size: 14px;
    line-height: 1.8;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: 100px 0;
    background: var(--secondary);
    color: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-circle {
    width: 400px;
    height: 400px;
    background: var(--primary);
    border-radius: 50%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 120px;
    color: var(--white);
    will-change: transform;
    transform: translateZ(0);
}

.about-text h2 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 24px;
}

.about-text h2 span {
    color: var(--primary);
}

.about-text p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 32px;
    opacity: 0.95;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 40px;
}

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

.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    display: block;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
}

/* ============================================
   PORTFOLIO SECTION
   ============================================ */
.portfolio {
    padding: 100px 0;
    background: var(--white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.portfolio-item {
    background: var(--light);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s;
    will-change: transform;
    backface-visibility: hidden;
    cursor: default;
}

.portfolio-item:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 4px;
    transform: translateY(-8px);
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

.portfolio-image {
    width: 100%;
    height: 350px;
    background-size: cover;
    background-position: center;
    transform: translateZ(0);
}

.portfolio-info {
    padding: 24px;
}

.portfolio-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.tag {
    background: var(--primary);
    color: var(--dark);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.portfolio-item h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
}

.portfolio-item p {
    color: var(--gray);
    font-size: 14px;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: 100px 0;
    background: var(--light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
}

.contact-info h3 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 24px;
}

.contact-info h3 span {
    color: var(--primary);
}

.contact-info p {
    color: var(--gray);
    margin-bottom: 32px;
}

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

.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dark);
    font-size: 20px;
}

.contact-details a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 600;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    font-family: 'Poppins', sans-serif;
    transition: all 0.3s;
    background: var(--white);
}

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

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

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--error);
}

.error-message {
    color: var(--error);
    font-size: 12px;
    margin-top: 4px;
    display: none;
}

.error-message.show {
    display: block;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background: var(--secondary);
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.submit-btn:hover:not(:disabled) {
    background: var(--secondary-dark);
    transform: translateY(-2px);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-status {
    margin-top: 16px;
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    display: none;
}

.form-status.success {
    background: #D1FAE5;
    color: #065F46;
    display: block;
}

.form-status.error {
    background: #FEE2E2;
    color: #991B1B;
    display: block;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--primary);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    font-size: 14px;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s;
    font-size: 18px;
}

.social-link:hover {
    background: var(--primary);
    color: var(--dark);
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    display: block;
    margin-bottom: 12px;
    font-size: 14px;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

/* ============================================
   WHATSAPP FLOAT BUTTON
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 64px;
    height: 64px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
    text-decoration: none;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all 0.3s;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 28px rgba(37, 211, 102, 0.6);
}

/* ============================================
   LOADING SPINNER
   ============================================ */
.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   PERFORMANCE OPTIMIZATIONS
   ============================================ */
.service-card,
.portfolio-item,
.hero-badge {
    perspective: 1000px;
}

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

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 968px) {
    .nav-menu {
        display: none;
    }

    .hire-btn {
        display: none;
    }

    .mobile-toggle {
        display: block;
    }

    .mobile-nav {
        display: flex;
    }

    .overlay {
        display: block;
    }

    .hero-content,
    .about-content,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 36px;
    }

    .section-title {
        font-size: 32px;
    }

    .hero-circle,
    .about-circle {
        width: 300px;
        height: 300px;
    }

    .hero-circle {
        font-size: 60px;
    }

    .about-circle {
        font-size: 90px;
    }

    .hero-badge {
        font-size: 13px;
        padding: 10px 18px;
    }

    .badge-icon {
        width: 28px;
        height: 28px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px;
    }
}