/* =========================================================================
   VARIABLES & DESIGN TOKENS
   ========================================================================= */
   :root {
    /* Color Palette - Premium Dark Edition (Default) */
    --bg-primary: #0F1115;
    --bg-secondary: #171A1F;
    --text-primary: #F0F2F5;
    --text-secondary: #9BA3AF;
    
    --accent-color: #4C9B9C;
    --accent-hover: #60BDBD;
    --border-color: #262B33;

    /* Shadows */
    --shadow-sm: 0 4px 6px rgba(0,0,0,0.2);
    --shadow-md: 0 10px 30px rgba(0,0,0,0.3);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.4);

    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Layout */
    --max-width: 1100px;
    --section-padding: 100px 20px;
    --border-radius: 12px;
    --transition: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Light Mode Tokens (Optional Switch) */
[data-theme="light"] {
    --bg-primary: #F4F4F0;       /* Light beige / off-white */
    --bg-secondary: #EBECE8;     /* Slightly darker for cards */
    --text-primary: #1A1D20;     /* Deep charcoal */
    --text-secondary: #4A4E54;   /* Muted gray for paragraphs */
    
    --accent-color: #376E6F;     /* Muted Teal */
    --accent-hover: #2B5758;
    --border-color: #D6D8D4;

    --shadow-sm: 0 4px 6px rgba(0,0,0,0.04);
    --shadow-md: 0 10px 30px rgba(0,0,0,0.05);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.08);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Offset for sticky nav */
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition), color var(--transition);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
    transition: color var(--transition);
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

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

ul {
    list-style: none;
}

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

.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

/* =========================================================================
   BUTTONS
   ========================================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    border-radius: 6px;
    font-weight: 500;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: all var(--transition);
    font-size: 1rem;
    border: none;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #FFF;
}
.btn-primary:hover {
    background-color: var(--accent-hover);
    color: #FFF;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

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

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-text {
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    padding: 0;
}
.btn-text ion-icon {
    transition: transform var(--transition);
}
.btn-text:hover ion-icon {
    transform: translateX(4px);
}

/* =========================================================================
   NAVIGATION
   ========================================================================= */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: all var(--transition);
    border-bottom: 1px solid transparent;
}

header.scrolled {
    background-color: rgba(var(--bg-primary), 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1rem 0;
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links li a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

.nav-links li a:hover {
    color: var(--accent-color);
}

.nav-links li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent-color);
    transition: width var(--transition);
}

.nav-links li a:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

#theme-toggle {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition);
}

#theme-toggle:hover {
    transform: rotate(15deg);
    color: var(--accent-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s;
}

/* =========================================================================
   HERO SECTION
   ========================================================================= */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--section-padding);
    max-width: var(--max-width);
    margin: 0 auto;
}

.hero-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    max-width: 540px;
}

.tagline {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.hero-title {
    font-size: clamp(3rem, 5vw, 4.5rem);
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

.name-highlight {
    color: var(--accent-color);
    position: relative;
    display: inline-block;
    z-index: 1;
}

.name-highlight::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 0;
    width: 100%;
    height: 12px;
    background-color: var(--accent-color);
    opacity: 0.2;
    z-index: -1;
}

.hero-subtitle {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    letter-spacing: -0.5px;
}

.highlight {
    color: var(--text-secondary);
    font-weight: 400;
}

.hero-desc {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.hero-btn-group {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.hero-socials {
    display: flex;
    gap: 1.8rem;
    align-items: center;
    margin-left: 0.2rem; /* Align with text edge */
}

.hero-socials a {
    color: var(--text-secondary);
    font-size: 1.6rem;
    transition: all var(--transition);
}

.hero-socials a:hover {
    color: var(--accent-color);
    transform: translateY(-4px);
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--border-radius);
}

.hero-image-wrapper::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent-color);
    border-radius: var(--border-radius);
    z-index: -1;
    transition: all var(--transition);
}

.hero-image-wrapper:hover::before {
    top: 10px;
    left: 10px;
}

.hero-img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    aspect-ratio: 4/5;
    background-color: var(--bg-secondary);
}

/* =========================================================================
   ABOUT SECTION
   ========================================================================= */
.about-section {
    padding: var(--section-padding);
}

.about-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 4rem;
}

.about-text p {
    margin-bottom: 1.5rem;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat-card {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.stat-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.stat-card p {
    margin: 0;
    font-size: 0.95rem;
}

/* =========================================================================
   SKILLS SECTION
   ========================================================================= */
.skills-section {
    padding: var(--section-padding);
    background-color: var(--bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.skill-category {
    background-color: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.skill-category h3 {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
    font-size: 1.15rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.skill-category h3 ion-icon {
    color: var(--accent-color);
    font-size: 1.4rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.tag {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid transparent;
    transition: all var(--transition);
}

.tag:hover {
    background-color: transparent;
    color: var(--text-primary);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

@media (max-width: 900px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 700px) {
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

/* =========================================================================
   PROJECTS SECTION
   ========================================================================= */
.projects-section {
    padding: var(--section-padding);
}

.featured-project {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 5rem;
}

.featured-project.reverse {
    grid-template-columns: 1fr 1.2fr;
}

.featured-project.reverse .project-info {
    order: -1;
}

.project-img-container {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.project-img-container img {
    width: 100%;
    height: auto;
    object-fit: cover;
    aspect-ratio: 16/10;
    transition: transform 0.5s ease;
}

.project-img-container:hover img {
    transform: scale(1.03);
}

.project-label {
    font-family: var(--font-heading);
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 0.5rem;
}

.project-title {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.project-summary {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
    /* Removed negative margin - improved flexibility via grid and media queries below */
    box-shadow: var(--shadow-sm);
}

.featured-project.reverse .project-summary {
    margin-left: 0;
    margin-right: 0;
}

.project-tech {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.project-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

/* Secondary Projects grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.card-img {
    height: 220px;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
}

.card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.card-content {
    padding: 1.5rem;
}

.card-content h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.project-tech-small {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    color: var(--accent-color);
}

.grid-link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-weight: 500;
}

/* =========================================================================
   CERTIFICATIONS SECTION
   ========================================================================= */
.cert-section {
    padding: var(--section-padding);
    background-color: var(--bg-secondary);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.cert-card {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: pointer;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    display: flex;
    flex-direction: column;
}

.cert-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}

.cert-card > div:first-child {
    transition: background var(--transition);
    position: relative;
    overflow: hidden;
}

.cert-card:hover > div:first-child {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%) !important;
}

.cert-card > div:first-child ion-icon {
    transition: transform var(--transition);
    z-index: 1;
}

.cert-card:hover > div:first-child ion-icon {
    transform: scale(1.15) translateY(-5px);
}

.cert-preview {
    position: absolute;
    top: -5%;
    left: -5%;
    width: 110%;
    height: 110%;
    border: none;
    pointer-events: none; /* Allows the card link to remain perfectly clickable */
    z-index: 2;
    object-fit: cover;
    /* Aggressive scrollbar hiding for iframes */
    overflow: hidden !important;
    scrollbar-width: none !important;
}

.cert-preview::-webkit-scrollbar {
    display: none !important;
}

.cert-mobile-preview {
    position: absolute;
    inset: 0;
    z-index: 2;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(18, 20, 24, 0.98), rgba(28, 31, 36, 0.98));
}

.cert-mobile-canvas {
    position: absolute;
    top: 50%;
    left: 50%;
    display: block;
    max-width: none;
    transform: translate(-50%, -50%);
}

.cert-mobile-preview-error {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.cert-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 180px;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(2px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition);
    z-index: 3;
    overflow: hidden; /* Prevent internal scrollbars */
}

.cert-overlay ion-icon {
    color: #FFF;
    font-size: 3rem !important;
    transform: translateY(20px);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

.cert-card:hover .cert-overlay ion-icon {
    transform: translateY(0);
}

.cert-info {
    padding: 1.5rem;
    background: var(--bg-primary);
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-top: none;
}

.cert-info h4 {
    font-size: 1.1rem;
    line-height: 1.4;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.cert-info p {
    font-size: 0.85rem;
    margin: 0;
    color: var(--text-secondary);
}

/* Certificate Popup Modal */
.cert-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 3000;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.cert-modal-overlay.active {
    display: flex;
}

.cert-modal-box {
    position: relative;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 90vw;
    max-width: 900px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: certModalIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 25px 80px rgba(0,0,0,0.5);
}

@keyframes certModalIn {
    from { transform: scale(0.85); opacity: 0; }
    to   { transform: scale(1);    opacity: 1; }
}

.cert-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 10;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 1.4rem;
    transition: background var(--transition), color var(--transition);
}

.cert-modal-close:hover {
    background: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color);
}

.cert-modal-title {
    padding: 1.2rem 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    padding-right: 4rem;
}

.cert-modal-body {
    flex: 1;
    overflow: hidden;
    min-height: 500px;
}

.cert-modal-body iframe {
    width: 100%;
    height: 100%;
    min-height: 500px;
    border: none;
}

.cert-modal-body img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.cert-modal-preview {
    width: 100%;
    min-height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    background: linear-gradient(180deg, rgba(18, 20, 24, 0.98), rgba(28, 31, 36, 0.98));
}

.cert-modal-canvas {
    display: block;
    max-width: 100%;
}

.cert-modal-preview-error {
    color: var(--text-primary);
    padding: 2rem;
    text-align: center;
}

/* =========================================================================
   EXPERIENCE SECTION (TIMELINE)
   ========================================================================= */
.exp-section {
    padding: var(--section-padding);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background-color: var(--border-color);
    top: 0;
    bottom: 0;
    left: 20px;
    margin-left: -1px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 100%;
    margin-bottom: 2rem;
}

.timeline-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    background-color: var(--bg-primary);
    border: 3px solid var(--accent-color);
    border-radius: 50%;
    left: 13px;
    top: 15px;
    z-index: 1;
}

.timeline-item h3 {
    margin-bottom: 0.2rem;
}

.timeline-date {
    display: inline-block;
    padding: 0.2rem 0.8rem;
    background-color: var(--bg-secondary);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.timeline-sub {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* =========================================================================
   CONTACT SECTION & FOOTER
   ========================================================================= */
.contact-section {
    padding: var(--section-padding);
    background-color: var(--bg-secondary);
    text-align: center;
}

.contact-section .section-title {
    margin: 0 auto 3rem;
}

.contact-section .section-title::after {
    left: 50%;
    transform: translateX(-50%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 1.1fr; /* Slightly smaller form column */
    gap: 4rem;
    align-items: stretch; /* Keep columns equal height */
    margin-top: 4rem;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.contact-info {
    text-align: left;
}

.contact-desc {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.info-cards {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.info-card {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    background: var(--bg-primary);
    padding: 1.2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: all var(--transition);
}

.info-card:hover {
    transform: translateX(10px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow-sm);
}

.info-icon {
    width: 50px;
    height: 50px;
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    font-size: 1.5rem;
}

.info-text span {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.2rem;
}

.info-text a, .info-text p {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
}

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

.social-links-v2 {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(var(--accent-rgb), 0.1);
    width: 100%;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.social-item {
    width: 50px;
    height: 50px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.4rem;
    color: var(--text-primary);
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

.social-item:hover {
    background: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color);
    transform: translateY(-5px);
}

/* Form Styling */
.contact-form-wrapper {
    background: var(--bg-primary);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: left;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-left: 0.2rem;
}

.form-group input,
.form-group textarea {
    padding: 0.8rem 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    background-color: var(--bg-primary);
    box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.1);
}

.btn-submit {
    padding: 1rem 2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    margin-top: 1rem;
}

.main-footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 5rem 0 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    padding-bottom: 4rem;
    border-bottom: 1px solid var(--border-color);
}

    /* Removed brand styles for minimalist footer */


.footer-links h3,
.footer-contact h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-family: var(--font-heading);
}

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

.footer-links li,
.footer-contact li {
    margin-bottom: 1rem;
}

.footer-links a,
.footer-contact a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--accent-color);
    transform: translateX(5px);
}

.footer-contact ion-icon {
    font-size: 1.2rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    position: relative;
}

.copyright p,
.footer-tag p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.heart {
    display: inline-block;
    color: #e74c3c;
    animation: heartbeat 1.5s ease infinite;
}

@keyframes heartbeat {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.back-to-top {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 45px;
    height: 45px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    border: 1px solid var(--border-color);
    transition: all var(--transition);
}

.back-to-top:hover {
    background: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color);
    transform: translateY(-50%) translateY(-5px);
}

@media (max-width: 900px) {
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .footer-top {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .back-to-top {
        position: static;
        transform: none;
        margin: 0 auto;
    }
    
    .back-to-top:hover {
        transform: translateY(-5px);
    }
}

/* =========================================================================
   MEDIA QUERIES (RESPONSIVE)
   ========================================================================= */
@media (max-width: 900px) {
    .hero-section {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 120px;
    }
    
    .hero-content {
        max-width: 100%;
        margin: 0 auto;
    }
    
    .hero-btn-group {
        justify-content: center;
    }

    .hero-socials {
        justify-content: center;
        margin-left: 0;
    }
    
    .hero-image-wrapper {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .featured-project,
    .featured-project.reverse {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .featured-project.reverse .project-info {
        order: unset;
    }
    
    .project-summary,
    .featured-project.reverse .project-summary {
        margin-left: 0;
        margin-right: 0;
        margin-top: 0;
        padding: 1.2rem;
    }

    .project-img-container {
        height: 250px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-primary);
        width: 100%;
        text-align: center;
        padding: 2rem 0;
        transition: 0.3s;
        box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links li {
        margin: 1.5rem 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .timeline::after {
        left: 31px;
    }
    
    .timeline-dot {
        left: 24px;
    }

    .cert-section {
        padding-left: 16px;
        padding-right: 16px;
    }

    .cert-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
        justify-items: center;
    }

    .cert-card {
        width: 100%;
        max-width: 420px;
        margin: 0 auto;
    }

    .cert-card > div:first-child {
        height: 170px;
    }

    .cert-card > div:first-child iframe,
    .cert-card > div:first-child img,
    .cert-card > div:first-child .cert-mobile-preview {
        width: 100%;
        height: 100%;
    }

    .cert-mobile-preview {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .cert-mobile-canvas {
        max-width: 100%;
        max-height: 100%;
    }

    .cert-preview {
        display: none;
    }

    .cert-modal-overlay {
        padding: 0.75rem;
    }

    .cert-modal-box {
        width: 100%;
        max-height: 88vh;
    }

    .cert-modal-body {
        min-height: auto;
        overflow-y: auto;
    }

    .cert-modal-body iframe {
        min-height: 60vh;
    }

    .cert-modal-preview {
        min-height: 60vh;
    }
}