/* ============================================
   AURELIA CLASSIC PRO - PORTFOLIO TEMPLATE
   Luxury Classic Design System
   ============================================ */

/* --------------------------------------------
   CSS VARIABLES
   -------------------------------------------- */
:root {
    /* Background Colors */
    --bg-main: #F8F5F0;
    --bg-alt: #FFFFFF;
    
    /* Text Colors */
    --text-primary: #1E1E1E;
    --text-secondary: #555555;
    
    /* Accent Colors */
    --accent-gold: #C6A75E;
    --accent-bronze: #A8842C;
    
    /* Border & Shadow */
    --border-light: #E8E4DE;
    --shadow-soft: rgba(0, 0, 0, 0.05);
    --shadow-medium: rgba(0, 0, 0, 0.08);
    
    /* Spacing System (8px base) */
    --space-1: 8px;
    --space-2: 16px;
    --space-3: 24px;
    --space-4: 32px;
    --space-5: 40px;
    --space-6: 48px;
    --space-7: 64px;
    --space-8: 80px;
    
    /* Typography */
    --font-heading: 'Georgia', 'Times New Roman', serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    
    /* Transitions */
    --transition-fast: 200ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 400ms ease;
    
    /* Container */
    --container-max: 1160px;
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-main);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* --------------------------------------------
   LAYOUT
   -------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-3);
}

section {
    padding: var(--space-8) 0;
}

section:nth-child(even) {
    background-color: var(--bg-alt);
}

/* --------------------------------------------
   NAVIGATION
   -------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(248, 245, 240, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    transition: box-shadow var(--transition-base);
}

.nav-scrolled {
    box-shadow: 0 2px 20px var(--shadow-soft);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-2) var(--space-3);
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: var(--space-1) 0;
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-1);
}

.nav-toggle-bar {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

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

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-7);
    align-items: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.hero-name {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-2);
}

.hero-title {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    font-weight: 500;
    color: var(--accent-gold);
    margin-bottom: var(--space-3);
}

.hero-bio {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-4);
    max-width: 480px;
}

.hero-social {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.hero-social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: all var(--transition-base);
}

.hero-social-link:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    justify-content: center;
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-avatar-wrapper {
    position: relative;
    padding: 8px;
    border-radius: 24px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-bronze));
}

.hero-avatar {
    width: 320px;
    height: 400px;
    object-fit: cover;
    border-radius: 20px;
    background-color: var(--bg-alt);
    box-shadow: 0 20px 60px var(--shadow-medium);
}

/* --------------------------------------------
   BUTTONS
   -------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2) var(--space-4);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
}

.btn-primary {
    background-color: var(--accent-gold);
    color: var(--bg-alt);
}

.btn-primary:hover {
    background-color: var(--accent-bronze);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(198, 167, 94, 0.3);
}

/* --------------------------------------------
   SECTION TITLES
   -------------------------------------------- */
.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: var(--space-6);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-bronze));
    margin: var(--space-2) auto 0;
    border-radius: 2px;
}

/* --------------------------------------------
   PROJECTS SECTION
   -------------------------------------------- */
.projects {
    background-color: var(--bg-alt);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.project-card {
    background-color: var(--bg-main);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px var(--shadow-soft);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    opacity: 0;
    transform: translateY(30px);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease, box-shadow var(--transition-base);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px var(--shadow-medium);
}

.project-image-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
}

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

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

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(30, 30, 30, 0.8), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--space-3);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-btn {
    background-color: var(--accent-gold);
    color: var(--bg-alt);
    padding: var(--space-1) var(--space-3);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 4px;
    transform: translateY(20px);
    opacity: 0;
    transition: all var(--transition-base);
}

.project-card:hover .project-btn {
    transform: translateY(0);
    opacity: 1;
}

.project-content {
    padding: var(--space-3);
}

.project-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
    position: relative;
    display: inline-block;
}

.project-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-gold);
    transition: width var(--transition-base);
}

.project-card:hover .project-title::after {
    width: 100%;
}

.project-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --------------------------------------------
   EXPERIENCE SECTION - TIMELINE
   -------------------------------------------- */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-gold), var(--accent-bronze));
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 0 var(--space-4) var(--space-5);
    opacity: 0;
    transform: translateY(30px);
}

.timeline-item.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
    padding-right: var(--space-5);
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: var(--space-5);
}

.timeline-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    background-color: var(--accent-gold);
    border-radius: 50%;
    border: 3px solid var(--bg-main);
    top: 4px;
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -8px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -8px;
}

.timeline-content {
    background-color: var(--bg-alt);
    padding: var(--space-3);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-soft);
    border: 1px solid var(--border-light);
}

.timeline-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.timeline-company {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent-gold);
    margin-bottom: 4px;
}

.timeline-period {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.timeline-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --------------------------------------------
   EDUCATION SECTION
   -------------------------------------------- */
.education {
    background-color: var(--bg-alt);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    max-width: 900px;
    margin: 0 auto;
}

.education-card {
    background-color: var(--bg-main);
    padding: var(--space-4);
    border-radius: 12px;
    border: 1px solid var(--border-light);
    box-shadow: 0 4px 20px var(--shadow-soft);
    opacity: 0;
    transform: translateY(30px);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.education-card.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease, box-shadow var(--transition-base);
}

.education-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--shadow-medium);
}

.education-degree {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.education-school {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent-gold);
    margin-bottom: 4px;
}

.education-period {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.education-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --------------------------------------------
   SKILLS SECTION
   -------------------------------------------- */
.skills-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
    max-width: 800px;
    margin: 0 auto;
}

.skill-pill {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    background-color: var(--bg-alt);
    border: 1px solid var(--border-light);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-base);
    opacity: 0;
    transform: scale(0.9);
}

.skill-pill.visible {
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.4s ease, transform 0.4s ease, border-color var(--transition-base), box-shadow var(--transition-base);
}

.skill-pill:hover {
    border-color: var(--accent-gold);
    color: var(--text-primary);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(198, 167, 94, 0.15);
}

/* --------------------------------------------
   CONTACT SECTION
   -------------------------------------------- */
.contact {
    background-color: var(--bg-alt);
}

.contact-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    max-width: 500px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background-color: var(--bg-main);
    border-radius: 12px;
    border: 1px solid var(--border-light);
    width: 100%;
    transition: all var(--transition-base);
}

.contact-item:hover {
    border-color: var(--accent-gold);
    transform: translateX(4px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-bronze));
    border-radius: 10px;
    color: var(--bg-alt);
    font-size: 1.2rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 2px;
}

.contact-value {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* --------------------------------------------
   FOOTER
   -------------------------------------------- */
.footer {
    background-color: var(--text-primary);
    padding: var(--space-4) 0;
    text-align: center;
}

.footer-text {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

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

/* --------------------------------------------
   RESPONSIVE DESIGN
   -------------------------------------------- */
@media (max-width: 992px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-avatar {
        width: 280px;
        height: 350px;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--bg-main);
        flex-direction: column;
        padding: var(--space-4);
        gap: var(--space-2);
        border-bottom: 1px solid var(--border-light);
        transform: translateY(-150%);
        opacity: 0;
        transition: transform var(--transition-base), opacity var(--transition-base);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-link {
        padding: var(--space-2) 0;
        font-size: 1rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-5);
    }
    
    .hero-bio {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-social {
        justify-content: center;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-avatar {
        width: 240px;
        height: 300px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 50px !important;
        padding-right: 0 !important;
        text-align: left !important;
    }
    
    .timeline-dot {
        left: 12px !important;
        right: auto !important;
    }
    
    .education-grid {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: var(--space-6) 0;
    }
}

@media (max-width: 480px) {
    :root {
        --space-3: 16px;
        --space-4: 20px;
        --space-5: 28px;
        --space-6: 36px;
        --space-7: 48px;
        --space-8: 60px;
    }
    
    .hero-avatar {
        width: 200px;
        height: 260px;
    }
    
    .contact-item {
        padding: var(--space-2) var(--space-3);
    }
    
    .contact-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

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

/* Focus styles for keyboard navigation */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent-gold);
    outline-offset: 2px;
}