/* ========================================
   PORTFOLIO WEBSITE - STYLESHEET
   Color Scheme: Warm Sand Yellow (#D4A574) + Warm Pastel Orange (#E8B4A8)
   ======================================== */

/* ========== ROOT & VARIABLES ========== */
:root {
    --primary: #D4A574;
    --primary-dark: #B8905A;
    --primary-light: #E8B4A8;
    --secondary: #E8B4A8;
    --accent: #F4A582;
    --success: #51cf66;
    --warning: #ffc107;
    --danger: #ff6b6b;
    
    --bg-primary: #ffffff;
    --bg-secondary: #fffbf7;
    --bg-tertiary: #fef5f0;
    
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-light: #999999;
    
    --border-color: #f0e0d0;
    --shadow: 0 2px 8px rgba(212, 165, 116, 0.1);
    --shadow-lg: 0 8px 24px rgba(212, 165, 116, 0.15);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
}

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

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

/* ========== CONTAINER ========== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== NAVIGATION ========== */
.navbar {
    background: var(--bg-primary);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
}

.logo {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-menu a {
    font-weight: 500;
    transition: var(--transition);
}

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

.language-selector select {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
}

.language-selector select:hover {
    border-color: var(--primary);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
    background: none;
    border: none;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========== HERO SECTION ========== */
.hero {
    margin-top: 0;
    padding: 120px 0;
    background: linear-gradient(135deg, #fffbf7 0%, #fef5f0 100%);
    text-align: center;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 12px;
    font-weight: 600;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== BUTTONS ========== */
.btn {
    padding: 12px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    display: inline-block;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(212, 165, 116, 0.3);
}

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

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

.link-btn {
    display: inline-block;
    padding: 8px 16px;
    background: var(--bg-secondary);
    color: var(--primary);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

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

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

.about h2 {
    font-size: 36px;
    margin-bottom: 48px;
    text-align: center;
    color: var(--text-primary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-text p {
    font-size: 16px;
    margin-bottom: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 8px;
    font-weight: 500;
}

.highlight-item i {
    font-size: 24px;
    color: var(--primary);
}

/* ========== PROJECTS SECTION ========== */
.projects {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.projects h2 {
    font-size: 36px;
    margin-bottom: 48px;
    text-align: center;
    color: var(--text-primary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.project-card {
    background: var(--bg-primary);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.project-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--bg-tertiary);
}

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

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-info {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-info h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.project-info p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 16px;
    flex: 1;
}

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

.tag {
    background: var(--bg-secondary);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.project-links {
    display: flex;
    gap: 8px;
}

.project-links .link-btn {
    flex: 1;
    text-align: center;
}

/* ========== SKILLS SECTION ========== */
.skills {
    padding: 100px 0;
    background: var(--bg-primary);
}

.skills h2 {
    font-size: 36px;
    margin-bottom: 48px;
    text-align: center;
    color: var(--text-primary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.skill-category {
    background: var(--bg-secondary);
    padding: 24px;
    border-radius: 12px;
    border-left: 4px solid var(--primary);
}

.skill-category h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--primary);
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skill-item span {
    font-weight: 500;
    font-size: 14px;
    color: var(--text-primary);
}

.skill-bar {
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 4px;
    transition: width 1s ease-out;
}

/* ========== CONTACT SECTION ========== */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    text-align: center;
}

.contact h2 {
    font-size: 36px;
    margin-bottom: 16px;
}

.contact-subtitle {
    font-size: 18px;
    margin-bottom: 48px;
    opacity: 0.9;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
    text-align: left;
}

.info-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.info-item i {
    font-size: 24px;
    margin-top: 4px;
}

.info-item h4 {
    margin-bottom: 4px;
}

.info-item a {
    color: white;
    text-decoration: underline;
}

.info-item p {
    margin: 0;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.social-btn {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    transition: var(--transition);
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-4px);
}

/* ========== FOOTER ========== */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 32px 0;
    text-align: center;
}

.footer p {
    margin: 8px 0;
    font-size: 14px;
}

.footer i {
    color: var(--primary-light);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-primary);
        gap: 0;
        padding: 16px;
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        padding: 12px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu li:last-child {
        border-bottom: none;
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-description {
        font-size: 16px;
    }

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

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

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

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

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

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .navbar-content {
        padding: 12px 0;
    }

    .hero {
        padding: 80px 0;
    }

    .hero-content h1 {
        font-size: 24px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-buttons {
        gap: 12px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }

    .projects h2,
    .skills h2,
    .about h2,
    .contact h2 {
        font-size: 28px;
    }

    .skill-category {
        padding: 16px;
    }
}