/* ==========================================================================
   MINIMALIST PORTFOLIO DESIGN SYSTEM
   Leonardo Henrique — Marketing & Design
   ========================================================================== */

/* Theme Variables */
:root {
    /* Fonts */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    /* Layout & Spacing */
    --container-width: 1200px;
    --header-height: 80px;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
    
    /* Dark Theme (Default) */
    --bg-primary: #0a0a0a;
    --bg-secondary: #121212;
    --bg-accent: #161616;
    --text-primary: #f3f3f3;
    --text-secondary: #a3a3a3;
    --text-muted: #525252;
    --accent-color: #ff6b35; /* Premium Coral Orange */
    --accent-glow: rgba(255, 107, 53, 0.15);
    --border-color: #1f1f1f;
    --card-bg: #111111;
    --card-border: #1a1a1a;
    --modal-backdrop: rgba(10, 10, 10, 0.96);
    --selection-bg: #ff6b35;
    --selection-color: #0a0a0a;
}

/* Light Theme Variables */
body.light-theme {
    --bg-primary: #fafaf9;
    --bg-secondary: #f5f5f4;
    --bg-accent: #e7e5e4;
    --text-primary: #1c1917;
    --text-secondary: #57534e;
    --text-muted: #a8a29e;
    --accent-color: #e05315; /* Deeper orange for readability on white */
    --accent-glow: rgba(224, 83, 21, 0.1);
    --border-color: #e7e5e4;
    --card-bg: #ffffff;
    --card-border: #f2f0ee;
    --modal-backdrop: rgba(250, 250, 249, 0.98);
    --selection-bg: #e05315;
    --selection-color: #ffffff;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.6s cubic-bezier(0.16, 1, 0.3, 1), color 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

::selection {
    background-color: var(--selection-bg);
    color: var(--selection-color);
}

/* Background Grain Overlay */
.bg-grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    opacity: 0.025;
    pointer-events: none;
    z-index: 9999;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

body.light-theme .bg-grain {
    opacity: 0.035; /* Slightly higher visibility on light background */
}

/* Typography elements */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

p {
    color: var(--text-secondary);
}

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

/* Container */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }
}

/* Helper Buttons & UI Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 600;
    padding: 14px 30px;
    border-radius: 4px;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    letter-spacing: 0.03em;
}

.btn-primary {
    background-color: var(--text-primary);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background-color: var(--accent-color);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-whatsapp {
    background-color: #25d366;
    color: #ffffff;
    font-weight: 600;
    gap: 10px;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.2);
}

.btn-whatsapp:hover {
    background-color: #128c7e;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.35);
}

.whatsapp-logo {
    width: 20px;
    height: 20px;
}

/* Icons styling */
.icon {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    transition: background-color 0.6s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

body.light-theme .header {
    background-color: rgba(250, 250, 249, 0.85);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 24px;
    }
}

.logo-link {
    display: flex;
    align-items: center;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo {
    height: 38px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
}

.logo-link:hover .brand-logo {
    transform: rotate(-5deg) scale(1.05);
}

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

.logo-light-theme {
    display: none;
}

.logo-dark-theme {
    display: block;
}

body.light-theme .logo-light-theme {
    display: block;
}

body.light-theme .logo-dark-theme {
    display: none;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: var(--text-primary);
    line-height: 1.1;
}

.logo-subtext {
    font-size: 11px;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
    letter-spacing: 0.02em;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--accent-color);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover::after, .nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.theme-toggle-btn:hover {
    background-color: var(--bg-secondary);
    border-color: var(--text-primary);
}

body.dark-theme .sun-icon {
    display: none;
}

body.light-theme .moon-icon {
    display: none;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 32px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 101;
}

.menu-line {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-smooth);
}

/* Scroll Fade In Animation Framework */
.scroll-fade {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-fade.active {
    opacity: 1;
    transform: translateY(0);
}

/* Sections */
.section {
    padding: 120px 0;
    border-bottom: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .section {
        padding: 80px 0;
    }
}

.section-header {
    max-width: 600px;
    margin-bottom: 70px;
}

.section-subtitle {
    display: block;
    font-family: var(--font-heading);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--accent-color);
    margin-bottom: 12px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: calc(var(--header-height) + 40px);
}

.hero-container {
    max-width: 850px;
}

.hero-tag {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--accent-color);
    margin-bottom: 24px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 24px;
}

.text-gradient {
    color: var(--accent-color);
    background: linear-gradient(135deg, var(--accent-color) 30%, #ff9f1c 90%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 19px;
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 700px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 38px;
    }
    
    .hero-desc {
        font-size: 16px;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0.6;
}

.mouse-icon {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-primary);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background-color: var(--text-primary);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 1.5s infinite ease-in-out;
}

.scroll-text {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-family: var(--font-heading);
}

@keyframes scroll-wheel {
    0% {
        opacity: 0;
        top: 6px;
    }
    30% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        top: 18px;
    }
}

/* Portfolio Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

@media (max-width: 992px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* Project Cards */
.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-color);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

body.light-theme .project-card:hover {
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
}

.project-img-wrapper {
    width: 100%;
    padding-top: 66.2%; /* Same ratio as 305x202 */
    position: relative;
    overflow: hidden;
    background-color: var(--bg-accent);
}

.project-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

.project-tag {
    font-family: var(--font-heading);
    font-size: 11px;
    font-weight: 600;
    color: var(--accent-color);
    letter-spacing: 0.1em;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.project-title {
    font-size: 19px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 12px;
}

.project-link {
    margin-top: auto;
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-primary);
}

.project-link-arrow {
    transition: transform 0.3s ease;
}

.project-card:hover .project-link-arrow {
    transform: translateX(4px);
}

/* About Section */
.about-container {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: 80px;
    align-items: center;
}

@media (max-width: 992px) {
    .about-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

.about-image-wrapper {
    display: flex;
    justify-content: center;
}

.image-frame {
    position: relative;
    width: 100%;
    max-width: 320px;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    overflow: hidden;
}

.about-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: grayscale(1);
    transition: filter 0.5s ease;
}

.image-frame:hover .about-photo {
    filter: grayscale(0);
}

.frame-tag {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 20%, transparent 100%);
    color: #ffffff;
    font-family: var(--font-heading);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-align: center;
    padding: 20px 0 10px 0;
}

.about-text p {
    font-size: 17px;
    margin-bottom: 20px;
    line-height: 1.7;
}

.education-block {
    margin-top: 30px;
    padding-top: 25px;
    border-top: 1px solid var(--border-color);
}

.education-title {
    font-family: var(--font-title);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.education-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.education-list li {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.education-list li strong {
    font-family: var(--font-title);
    font-size: 15px;
    font-weight: 600;
    color: var(--text-color);
}

.education-list li span {
    font-size: 13px;
    color: var(--text-muted);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
}

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

.skill-number {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    color: var(--accent-color);
    line-height: 1.1;
    margin-bottom: 4px;
}

.skill-name {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

@media (max-width: 480px) {
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* Contact Section */
.contact-container {
    max-width: 900px;
}

.contact-content {
    display: grid;
    grid-template-columns: 5fr 5fr;
    gap: 60px;
    margin-top: 20px;
}

@media (max-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 24px;
    border-radius: 6px;
    display: flex;
    align-items: flex-start;
    gap: 18px;
    transition: var(--transition-smooth);
}

.contact-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: 6px;
    background-color: var(--bg-secondary);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 20px;
    height: 20px;
}

.contact-info h3 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 6px;
}

.contact-info a {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.contact-info a:hover {
    color: var(--accent-color);
}

.contact-actions-block {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-tagline {
    font-size: 17px;
    line-height: 1.6;
    margin-bottom: 24px;
}

/* Footer styling */
.footer-main {
    padding: 80px 0 40px 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    transition: background-color 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.footer-container {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

.footer-desc {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
}

.copyright {
    font-size: 14px;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 30px;
    font-size: 14px;
    color: var(--text-secondary);
}

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

@media (max-width: 768px) {
    .footer-bottom {
        flex-direction: column-reverse;
        gap: 20px;
        align-items: flex-start;
    }
    
    .footer-links {
        gap: 20px;
    }
}

/* Portfolio Details Modal Overlay */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--modal-backdrop);
    backdrop-filter: blur(15px);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    overflow-y: auto;
    display: flex;
    justify-content: center;
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-close-btn {
    position: fixed;
    top: 30px;
    right: 40px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: 1010;
}

body.light-theme .modal-close-btn {
    background-color: rgba(0, 0, 0, 0.02);
}

.modal-close-btn:hover {
    transform: rotate(90deg);
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: #ffffff;
}

@media (max-width: 768px) {
    .modal-close-btn {
        top: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

.modal-content {
    width: 100%;
    max-width: 940px;
    padding: 120px 20px 80px 20px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.modal-header-info {
    margin-bottom: 50px;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}

.modal.active .modal-header-info {
    opacity: 1;
    transform: translateY(0);
}

.modal-category {
    font-family: var(--font-heading);
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-color);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 12px;
}

.modal-title {
    font-size: 48px;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .modal-title {
        font-size: 32px;
    }
}

.modal-metadata {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    margin-bottom: 30px;
}

.meta-field {
    display: flex;
    flex-direction: column;
}

.meta-label {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    margin-bottom: 4px;
    font-weight: 500;
}

.meta-value {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.modal-description {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 800px;
}

.modal-gallery {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 60px;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.4s, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.4s;
}

.modal.active .modal-gallery {
    opacity: 1;
    transform: translateY(0);
}

.modal-gallery-img {
    width: 100%;
    height: auto;
    border-radius: 0;
    display: block;
    background-color: var(--bg-accent);
}

.modal-footer-nav {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid var(--border-color);
    padding-top: 40px;
    opacity: 0;
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.6s;
}

.modal.active .modal-footer-nav {
    opacity: 1;
}

.modal-nav-btn {
    gap: 8px;
    padding: 12px 24px;
}

.icon-nav {
    width: 16px;
    height: 16px;
}

/* Mobile Sidebar menu styles when opened */
.header.menu-open {
    background-color: var(--bg-primary);
    height: 100vh;
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100vw;
        height: calc(100vh - var(--header-height));
        background-color: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 30px;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-link {
        font-size: 20px;
    }
    
    /* Close icon transitions */
    .mobile-menu-btn.active .menu-line:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    .mobile-menu-btn.active .menu-line:nth-child(2) {
        opacity: 0;
    }
    .mobile-menu-btn.active .menu-line:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
}