/* ===== COMBINED PORTFOLIO STYLES ===== */

/* ----- CSS Variables ----- */
:root {
    /* Default to Dark Theme */
    --bg: #000000;
    --text: #FFFFFF;
    --border: #FFFFFF;
    --accent: #FFFF00;
    --hover-bg: rgba(255, 255, 0, 0.1);
    --modal-bg: rgba(0, 0, 0, 0.9);
}

[data-theme="light"] {
    --bg: #FFFFFF;
    --text: #000000;
    --border: #000000;
    --accent: #0000FF;
    --hover-bg: rgba(0, 0, 255, 0.1);
    --modal-bg: rgba(255, 255, 255, 0.95);
}

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

body {
    font-family: 'Atkinson Hyperlegible', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: all 0.3s ease;
    overflow-x: hidden;
}

html { 
    scroll-behavior: smooth; 
}

/* ----- THEME TOGGLE (COMMON) ----- */
.theme-toggle {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: var(--bg);
    border: 2px solid var(--border);
    color: var(--text);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 700;
    padding: 0.75rem 1.25rem;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1000;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-toggle:hover {
    background-color: var(--text);
    color: var(--bg);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.theme-toggle i {
    font-size: 1rem;
}

/* ----- INDEX PAGE STYLES ----- */
.main-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    max-width: 1400px;
    margin: 0 auto;
    gap: 4rem;
    position: relative;
}

/* Left Panel (Sticky) */
.left-panel {
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-right: 2px solid var(--border);
    z-index: 10;
}

.profile-picture {
    width: 240px;
    height: 240px;
    object-fit: cover;
    border: 2px solid var(--border);
    filter: grayscale(100%);
    margin-bottom: 2rem;
    transition: filter 0.3s ease, transform 0.3s ease;
    cursor: pointer;
}

.profile-picture:hover {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.identity h1 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.1;
    animation: fadeInUp 0.8s ease-out;
}

.identity h2 {
    font-size: 1.2rem;
    font-weight: 400;
    margin-top: 1rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.contact-links ul {
    list-style: none;
}

.contact-links li {
    margin-top: 1rem;
    animation: fadeInLeft 0.6s ease-out calc(0.4s + var(--delay)) both;
}

.contact-links li:nth-child(1) { --delay: 0.1s; }
.contact-links li:nth-child(2) { --delay: 0.2s; }
.contact-links li:nth-child(3) { --delay: 0.3s; }

.contact-links a {
    color: var(--text);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    padding: 0.75rem;
    margin: -0.75rem;
    border-radius: 4px;
    transition: all 0.2s ease;
    position: relative;
}

.contact-links a::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

.contact-links a:hover::before {
    width: 100%;
}

.contact-links a:hover {
    background-color: var(--hover-bg);
    transform: translateX(8px);
}

.contact-links i {
    margin-right: 0.75rem;
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

/* Right Panel (Scrollable) */
.right-panel {
    padding: 3rem;
    animation: fadeIn 1s ease-out 0.6s both;
}

/* ----- PROJECTS PAGE STYLES ----- */
.header {
    padding: 2rem 3rem;
    border-bottom: 2px solid var(--border);
    position: sticky;
    top: 0;
    background-color: var(--bg);
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.back-link {
    color: var(--text);
    text-decoration: none;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    border: 2px solid var(--border);
    transition: all 0.3s ease;
    background-color: var(--bg);
}

.back-link:hover {
    background-color: var(--text);
    color: var(--bg);
    transform: translateY(-2px);
}

.back-link i {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.back-link:hover i {
    transform: translateX(-5px);
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-transform: uppercase;
}

.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 3rem;
}

.projects-intro {
    text-align: center;
    margin-bottom: 4rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.projects-intro h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.projects-intro h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--accent);
    transform: scaleX(0);
    animation: growLine 1s ease-out 1.2s both;
}

.projects-intro p {
    font-size: 1.2rem;
    max-width: 60ch;
    margin: 0 auto;
    opacity: 0.9;
}

/* ----- SHARED COMPONENTS ----- */

/* Section Styles */
.section {
    padding-top: 4rem;
    margin-bottom: 4rem;
}

.section:first-child {
    padding-top: 0;
}

.section-title {
    font-size: 1.2rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent);
    transform: scaleX(0);
    transition: transform 0.5s ease;
    transform-origin: left;
}

.section.visible .section-title::after {
    transform: scaleX(1);
}

/* Project Category Styles */
.project-category {
    margin-bottom: 5rem;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.project-category.visible {
    opacity: 1;
    transform: translateY(0);
}

.category-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
    color: var(--accent);
}

.category-title::before {
    content: "//";
    margin-right: 1rem;
}

.category-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent);
    transform: scaleX(0);
    transition: transform 0.5s ease;
    transform-origin: left;
}

.project-category.visible .category-title::after {
    transform: scaleX(1);
}

/* Project Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

/* Project Cards */
.project-card {
    border: 2px solid var(--border);
    padding: 1.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    background-color: var(--bg);
    opacity: 0;
    transform: translateY(30px);
}

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

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent, var(--hover-bg));
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

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

.project-card:hover {
    transform: translate(8px, -8px);
    box-shadow: -8px 8px 0 0 var(--accent);
}

.project-card h3 { 
    font-size: 1.4rem; 
    font-weight: 700; 
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.project-card h3 i {
    font-size: 1.2rem;
    color: var(--accent);
}

.project-card p { 
    margin-bottom: 1rem; 
    opacity: 0.9;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Project Tech Tags */
.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.tech-tag {
    background-color: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.2rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    transition: all 0.2s ease;
}

.tech-tag:hover {
    background-color: var(--accent);
    color: var(--bg);
}

/* Project Links */
.project-links a { 
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text); 
    text-decoration: none; 
    border: 2px solid var(--border); 
    padding: 0.5rem 1rem; 
    margin-right: 0.75rem; 
    margin-bottom: 0.5rem;
    font-weight: 700;
    transition: all 0.2s ease;
    background-color: var(--bg);
    font-size: 0.9rem;
}

.project-links a:hover { 
    background-color: var(--text); 
    color: var(--bg);
    transform: translateY(-2px);
}

/* Project Status */
.project-status {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.3rem 0.8rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 20px;
}

.status-completed {
    background-color: #00FF00;
    color: #000000;
}

.status-progress {
    background-color: var(--accent);
    color: var(--bg);
}

/* Skills Grid */
.skills-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); 
    gap: 3rem; 
}

.skills-category {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.skills-category.visible {
    opacity: 1;
    transform: translateY(0);
}

.skills-grid h4 { 
    font-size: 1.1rem; 
    font-weight: 700; 
    margin-bottom: 1rem;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skills-grid h4 i {
    font-size: 1.2rem;
}

.skills-grid ul { 
    list-style: none; 
}

.skills-grid li { 
    padding: 0.5rem 0;
    transition: all 0.2s ease;
    position: relative;
}

.skills-grid li::before { 
    content: "→"; 
    margin-right: 1rem; 
    color: var(--accent);
    transition: all 0.2s ease;
}

.skills-grid li:hover {
    transform: translateX(8px);
    color: var(--accent);
}

.skills-grid li:hover::before {
    content: "⟶";
}

/* View More Button */
.view-more-container {
    text-align: center;
    margin: 4rem 0;
    animation: fadeIn 1s ease-out 0.8s both;
}

.view-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    color: var(--text);
    text-decoration: none;
    border: 2px solid var(--border);
    padding: 1rem 2rem;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    background-color: var(--bg);
    position: relative;
    overflow: hidden;
}

.view-more-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--hover-bg), transparent);
    transition: left 0.5s ease;
}

.view-more-btn:hover::before {
    left: 100%;
}

.view-more-btn:hover {
    background-color: var(--text);
    color: var(--bg);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.view-more-btn:hover i {
    transform: translateX(5px);
}

.view-more-btn i {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

/* ----- MODAL STYLES ----- */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-bg);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background-color: var(--bg);
    margin: 2% auto;
    padding: 0;
    border: 2px solid var(--border);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: slideInUp 0.4s ease-out;
}

.modal-header {
    padding: 2rem 2.5rem 1rem;
    border-bottom: 2px solid var(--border);
    position: sticky;
    top: 0;
    background-color: var(--bg);
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.modal-header h2 {
    font-size: 2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.modal-header h2 i {
    color: var(--accent);
}

.close {
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    background: none;
    border: none;
}

.close:hover {
    color: var(--accent);
    transform: rotate(90deg);
}

.modal-body {
    padding: 2.5rem;
}

.modal-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.modal-tech {
    margin-bottom: 2rem;
}

.modal-tech h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--accent);
}

.modal-features {
    margin-bottom: 2rem;
}

.modal-features h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--accent);
}

.modal-features ul {
    list-style: none;
    padding-left: 0;
}

.modal-features li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 2rem;
}

.modal-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

.modal-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.modal-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text);
    text-decoration: none;
    border: 2px solid var(--border);
    padding: 0.75rem 1.5rem;
    font-weight: 700;
    transition: all 0.2s ease;
    background-color: var(--bg);
}

.modal-links a:hover {
    background-color: var(--text);
    color: var(--bg);
    transform: translateY(-2px);
}

/* ----- ANIMATIONS ----- */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes growLine {
    from {
        transform: scaleX(0);
    }
    to {
        transform: scaleX(1);
    }
}

/* ----- RESPONSIVE DESIGN ----- */

/* Large Tablets and Small Laptops */
@media (max-width: 1200px) {
    .main-grid {
        max-width: 1200px;
        gap: 3rem;
    }
    
    .left-panel {
        padding: 2.5rem;
    }
    
    .right-panel {
        padding: 2.5rem;
    }
    
    .main-content {
        padding: 3.5rem 2.5rem;
    }
}

/* Tablets */
@media (max-width: 900px) {
    .theme-toggle {
        position: absolute;
        top: 1rem;
        right: 1rem;
    }
    
    /* Index Page Mobile */
    .main-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .left-panel {
        position: static;
        height: auto;
        border-right: none;
        border-bottom: 2px solid var(--border);
        padding: 2rem;
        text-align: center;
    }
    
    .profile-picture {
        width: 200px;
        height: 200px;
        margin: 0 auto 2rem;
    }
    
    .identity h1 {
        font-size: 2rem;
    }
    
    .identity h2 {
        font-size: 1.1rem;
    }
    
    .contact-links {
        display: flex;
        justify-content: center;
        gap: 1rem;
        flex-wrap: wrap;
    }
    
    .contact-links li {
        margin-top: 0;
    }
    
    .contact-links a {
        padding: 0.5rem 1rem;
        font-size: 1rem;
    }
    
    .right-panel {
        padding: 2rem;
    }
    
    /* Projects Page Mobile */
    .header {
        padding: 1.5rem 2rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .page-title {
        font-size: 2rem;
        order: -1;
    }
    
    .main-content {
        padding: 3rem 2rem;
    }
    
    .projects-intro h1 {
        font-size: 2.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 2rem;
    }
    
    /* Modal Mobile */
    .modal-content {
        width: 95%;
        margin: 5% auto;
        max-height: 85vh;
    }
    
    .modal-header {
        padding: 1.5rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .close {
        position: absolute;
        top: 1rem;
        right: 1rem;
        width: 30px;
        height: 30px;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .modal-header h2 {
        font-size: 1.5rem;
    }
}

/* Mobile Phones */
@media (max-width: 600px) {
    .left-panel {
        padding: 1.5rem;
    }
    
    .right-panel {
        padding: 1.5rem;
    }
    
    .main-content {
        padding: 2rem 1.5rem;
    }
    
    .header {
        padding: 1rem 1.5rem;
    }
    
    .identity h1 {
        font-size: 1.8rem;
    }
    
    .projects-intro h1 {
        font-size: 2rem;
    }
    
    .page-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.1rem;
    }
    
    .category-title {
        font-size: 1.3rem;
    }
    
    .project-card {
        padding: 1.25rem;
    }
    
    .project-card h3 {
        font-size: 1.2rem;
    }
    
    .project-links a {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
    
    .view-more-btn {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
    
    .back-link {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .modal-body {
        padding: 1rem;
    }
    
    .modal-header {
        padding: 1rem;
    }
    
    .modal-links a {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}

/* Small Mobile Phones */
@media (max-width: 400px) {
    .profile-picture {
        width: 150px;
        height: 150px;
    }
    
    .identity h1 {
        font-size: 1.6rem;
    }
    
    .projects-intro h1 {
        font-size: 1.8rem;
    }
    
    .page-title {
        font-size: 1.6rem;
    }
    
    .contact-links a {
        font-size: 0.9rem;
        padding: 0.4rem 0.8rem;
    }
    
    .theme-toggle {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .project-card {
        padding: 1rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

/* Landscape orientation fixes */
@media (max-height: 600px) and (orientation: landscape) {
    .left-panel {
        height: auto;
        position: static;
    }
    
    .profile-picture {
        width: 120px;
        height: 120px;
    }
    
    .identity h1 {
        font-size: 1.5rem;
    }
    
    .contact-links {
        display: flex;
        gap: 1rem;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .contact-links li {
        margin-top: 0;
    }
}

/* Print Styles */
@media print {
    .theme-toggle,
    .modal,
    .view-more-btn {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .main-grid {
        grid-template-columns: 1fr;
    }
    
    .left-panel {
        border-right: none;
        border-bottom: 2px solid black;
        position: static;
        height: auto;
    }
    
    .project-card:hover {
        transform: none;
        box-shadow: none;
    }
}