/* ============================================
   PORFIRIO PORTFOLIO - STYLES
   ============================================ */

/* CSS Variables */
:root {
    /* Colors - Copper & Slate Palette */
    --color-copper: #B87333;
    --color-copper-light: #D4A574;
    --color-slate: #2F3640;
    --color-slate-light: #4A5568;
    --color-cream: #F5F0EB;
    --color-cream-dark: #E8E4DF;
    --color-white: #FFFFFF;
    --color-black: #0F0F0F;
    
    /* Typography */
    --font-display: 'Clash Display', sans-serif;
    --font-mono: 'Space Mono', monospace;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.2);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-mono);
    background-color: var(--color-cream);
    color: var(--color-slate);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Accent Color */
.accent {
    color: var(--color-copper);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: var(--transition-normal);
}

.nav.scrolled {
    background-color: rgba(245, 240, 235, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: var(--space-sm) 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--color-slate);
}

.nav-menu {
    display: flex;
    gap: var(--space-xl);
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-slate);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-copper);
    transition: var(--transition-normal);
}

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

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

/* Nav Toggle (Mobile) */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-slate);
    transition: var(--transition-normal);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid transparent;
    border-radius: 0;
    cursor: pointer;
    transition: var(--transition-normal);
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-copper);
}

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

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

.btn-full {
    width: 100%;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: var(--space-3xl) 0;
    overflow: hidden;
}

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

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(184, 115, 51, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(184, 115, 51, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-greeting {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-copper);
    margin-bottom: var(--space-sm);
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-md);
    color: var(--color-slate);
}

.hero-title .line {
    display: block;
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.2s;
}

.hero-subtitle {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    color: var(--color-slate-light);
    margin-bottom: var(--space-md);
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.4s;
}

.hero-description {
    font-size: 1rem;
    color: var(--color-slate-light);
    max-width: 500px;
    margin-bottom: var(--space-xl);
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.6s;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.8s;
}

/* Hero Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    opacity: 0;
    animation: fadeIn 1s ease forwards;
    animation-delay: 1.2s;
}

.scroll-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-slate-light);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-copper), transparent);
    animation: scrollBounce 2s ease infinite;
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
section {
    padding: var(--space-3xl) 0;
}

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

.section-number {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-copper);
    padding: var(--space-xs) var(--space-sm);
    border: 2px solid var(--color-copper);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 600;
    color: var(--color-slate);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    background-color: var(--color-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-image {
    position: relative;
}

.image-frame {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 3/4;
    background-color: var(--color-slate);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.image-text {
    font-family: var(--font-display);
    font-size: 8rem;
    font-weight: 700;
    color: var(--color-copper);
    opacity: 0.3;
}

.image-border {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--color-copper);
    z-index: 0;
}

.about-heading {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-slate);
    margin-bottom: var(--space-md);
}

.about-text {
    font-size: 1rem;
    color: var(--color-slate-light);
    margin-bottom: var(--space-md);
}

.about-stats {
    display: flex;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-cream-dark);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-copper);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-slate-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.project-card {
    background-color: var(--color-white);
    overflow: hidden;
    transition: var(--transition-normal);
    border: 1px solid var(--color-cream-dark);
}

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

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

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.project-icon {
    font-size: 3rem;
    opacity: 0.8;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(47, 54, 64, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

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

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

.project-link {
    padding: var(--space-sm) var(--space-lg);
    background-color: var(--color-copper);
    color: var(--color-white);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition-fast);
}

.project-link:hover {
    background-color: var(--color-copper-light);
}

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

.project-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-copper);
    margin-bottom: var(--space-xs);
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-slate);
    margin-bottom: var(--space-sm);
}

.project-description {
    font-size: 0.875rem;
    color: var(--color-slate-light);
    margin-bottom: var(--space-md);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tag {
    font-size: 0.75rem;
    padding: 4px 8px;
    background-color: var(--color-cream);
    color: var(--color-slate);
    border-radius: var(--radius-sm);
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills {
    background-color: var(--color-white);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2xl);
}

.skill-category-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-slate);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-copper);
}

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

.skill-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.skill-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-slate);
}

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

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--color-copper), var(--color-copper-light));
    transition: width 1s ease;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.skill-tag {
    font-size: 0.875rem;
    padding: var(--space-xs) var(--space-sm);
    background-color: var(--color-cream);
    color: var(--color-slate);
    border: 1px solid var(--color-cream-dark);
    transition: var(--transition-fast);
}

.skill-tag:hover {
    background-color: var(--color-copper);
    color: var(--color-white);
    border-color: var(--color-copper);
}

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

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

.contact-heading {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-slate);
    margin-bottom: var(--space-md);
}

.contact-text {
    font-size: 1rem;
    color: var(--color-slate-light);
    margin-bottom: var(--space-xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.contact-icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-copper);
    color: var(--color-white);
}

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

.contact-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-slate-light);
    margin-bottom: 4px;
}

.contact-detail a,
.contact-detail span {
    font-size: 1rem;
    color: var(--color-slate);
    font-weight: 600;
}

.contact-detail a:hover {
    color: var(--color-copper);
}

.social-links {
    display: flex;
    gap: var(--space-sm);
}

.social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-slate);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    transition: var(--transition-fast);
}

.social-link:hover {
    background-color: var(--color-copper);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form-wrapper {
    background-color: var(--color-white);
    padding: var(--space-2xl);
    border: 1px solid var(--color-cream-dark);
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-slate);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm);
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--color-slate);
    background-color: var(--color-cream);
    border: 2px solid transparent;
    transition: var(--transition-fast);
}

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

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: var(--color-slate);
    color: var(--color-white);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-slate-light);
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--color-white);
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--color-copper-light);
    margin-top: var(--space-xs);
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-cream);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--color-cream);
}

.footer-credit {
    color: var(--color-copper);
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes scrollBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(10px);
    }
}

/* Scroll Animation Classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--color-cream);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-xl);
        transition: var(--transition-normal);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--space-lg);
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }
    
    .contact-form-wrapper {
        padding: var(--space-lg);
    }
    
    .social-links {
        justify-content: center;
    }
}