:root {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --accent: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --accent-hover: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
    --border: #e2e8f0;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --radius: 12px;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border: #334155;
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: all 0.3s ease;
}

.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem 5%;
    position: relative;
}

.nav-brand {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    font-weight: 700;
    background: var(--accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: clamp(1rem, 3vw, 2rem);
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 6px;
}

.nav-menu a:hover {
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    width: clamp(20px, 5vw, 25px);
    height: 3px;
    background: var(--text-primary);
    transition: 0.3s;
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -5px);
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: 0.3s;
    margin-left: 1rem;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 clamp(1rem, 5vw, 5%);
    background: var(--accent);
    color: white;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 4vw, 1.5rem) !important;
    margin-bottom: 1rem !important;
    color: white !important;
    opacity: 0.9 !important;
    background: none !important;
    -webkit-background-clip: initial !important;
    -webkit-text-fill-color: white !important;
}

.section-title {
    font-size: clamp(2rem, 6vw, 2.5rem) !important;
    text-align: center !important;
    margin-bottom: clamp(2rem, 5vw, 3rem) !important;
    background: var(--accent) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
}

.hero-content {
    max-width: clamp(500px, 90vw, 800px);
    margin-top: 1rem;
}

.hero-img {
    width: clamp(140px, 30vw, 200px);
    height: clamp(140px, 30vw, 200px);
    border-radius: 50%;
    margin-bottom: 1rem;
    object-fit: cover;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.hero h1 {
    font-size: clamp(2.2rem, 8vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.hero p {
    font-size: clamp(1rem, 3vw, 1.2rem);
    margin-bottom: 2rem;
    max-width: 600px;
    padding: 0 clamp(1rem, 5vw, 2rem);
}

.btn {
    display: inline-block;
    padding: clamp(10px, 2.5vw, 12px) clamp(20px, 4vw, 30px);
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    margin: 0 clamp(0.5rem, 2vw, 1rem);
    white-space: nowrap;
}

/* Light mode defaults */
.btn.btn-secondary:hover {
  background-color: #ffffff;
  color: #000000; /* Black text on hover */
}

/* Dark mode override - higher specificity */
[data-theme="dark"] .btn.btn-secondary:hover {
  background-color: #ffffff;
  color: #000000 !important; /* Ensures black text; use sparingly */
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

section {
    padding: clamp(80px, 12vw, 100px) clamp(20px, 8vw, 5%);
    max-width: 1200px;
    margin: 0 auto;
}

h2 {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    text-align: center;
    margin-bottom: clamp(2rem, 5vw, 3rem);
    background: var(--accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about {
    text-align: center;
    max-width: clamp(600px, 90vw, 800px);
    margin: 0 auto;
}

.about p {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    padding: clamp(2rem, 5vw, 3rem);
    box-shadow: var(--shadow);
    font-size: clamp(1rem, 2.5vw, 1.1rem);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(clamp(280px, 45vw, 300px), 1fr));
    gap: clamp(1.5rem, 4vw, 2rem);
}

.skill-category {
    background: var(--bg-secondary);
    padding: clamp(1.5rem, 4vw, 2rem);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
}

.skill-category h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: clamp(1.1rem, 3vw, 1.2rem);
}

.skill-icons {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(0.8rem, 3vw, 1rem);
    justify-content: center;
}

.skill-icons img {
    width: clamp(35px, 8vw, 50px);
    height: clamp(35px, 8vw, 50px);
    transition: 0.3s;
}

.skill-icons img:hover {
    transform: scale(1.1);
}

.skill-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: clamp(0.4rem, 1vw, 0.6rem);
}

.skill-label {
    font-size: clamp(0.7rem, 2vw, 0.85rem);
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.2;
    margin: 0;
}

.skill-item:hover img {
    transform: scale(1.1);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(clamp(300px, 90vw, 350px), 1fr));
    gap: clamp(1.5rem, 4vw, 2rem);
}

.project-card {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    padding: clamp(1.5rem, 4vw, 2rem);
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.project-card:hover {
    transform: translateY(-10px);
}

.project-icon {
    width: clamp(60px, 12vw, 80px);
    height: clamp(60px, 12vw, 80px);
    margin-bottom: 1rem;
    object-fit: contain;
    transition: all 0.3s ease;
}

.project-card:hover .project-icon {
    transform: scale(1.1);
}

.project-card h3 {
    margin-bottom: 1rem;
    font-size: clamp(1.2rem, 3vw, 1.4rem);
}

.project-card .btn {
    margin: 0 auto;
    display: inline-block;
    padding: 0.75rem 1.5rem;
}


.contact {
    text-align: center;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    padding: clamp(2rem, 5vw, 3rem);
    box-shadow: var(--shadow);
}

#contact-form {
    max-width: 600px;
    margin: 0 auto 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#contact-form input,
#contact-form textarea {
    padding: 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.social-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.1rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: 0.3s;
}

.social-links a:hover {
    background: var(--accent);
    color: white;
}

footer {
    text-align: center;
    padding: clamp(1.5rem, 4vw, 2rem);
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .nav {
        justify-content: space-between;
        padding: clamp(0.8rem, 3vw, 1rem) clamp(1rem, 5vw, 5%);
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        padding: 0;
        margin: 0;
        z-index: 999;
        backdrop-filter: blur(10px);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-menu li {
        opacity: 0;
        transform: translateX(30px);
        animation: slideIn 0.3s ease forwards;
    }

    .nav-menu li:nth-child(1) {
        animation-delay: 0.1s;
    }

    .nav-menu li:nth-child(2) {
        animation-delay: 0.2s;
    }

    .nav-menu li:nth-child(3) {
        animation-delay: 0.3s;
    }

    .nav-menu li:nth-child(4) {
        animation-delay: 0.4s;
    }

    .nav-menu li:nth-child(5) {
        animation-delay: 0.5s;
    }

    .nav-menu li:nth-child(6) {
        animation-delay: 0.6s;
    }

    @keyframes slideIn {
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }

    .nav-menu a {
        font-size: clamp(1.1rem, 4vw, 1.3rem);
        padding: clamp(1rem, 3vw, 1.5rem) clamp(2rem, 6vw, 3rem);
        display: block;
    }

    .hamburger {
        display: flex;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        display: block;
        margin: 0.5rem auto;
    }

    .timeline::before {
        left: clamp(20px, 6vw, 30px);
    }

    .timeline-item {
        width: 100%;
        padding: 2rem clamp(70px, 15vw, 90px) 2rem clamp(1rem, 4vw, 2rem) !important;
    }

    .timeline-item.right {
        left: 0 !important;
    }

    .timeline-icon {
        left: clamp(15px, 5vw, 25px) !important;
    }

    .timeline-card .arrow {
        display: none;
    }

    .experience {
        padding: clamp(2rem, 8vw, 4rem) clamp(1rem, 5vw, 2rem);
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

section {
    animation: fadeInUp 0.8s ease forwards;
}

.experience {
    max-width: 1000px;
    margin: 0 auto;
}

.experience-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.experience-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-secondary);
    padding: clamp(2rem, 4vw, 2.5rem);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

.experience-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.experience-content {
    flex: 1;
}

.company-name {
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    background: var(--accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.company-period {
    font-size: clamp(1rem, 2vw, 1.1rem);
    color: var(--text-secondary);
    font-weight: 500;
}

.company-logo-container {
    flex-shrink: 0;
    margin-left: 2rem;
}

.company-logo {
    width: 44px !important;
    height: 44px !important;
    min-width: 44px !important;
    min-height: 44px !important;
    max-width: 44px !important;
    max-height: 44px !important;
}

.company-logo:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
}

@media (max-width: 768px) {
    .experience-item {
        flex-direction: column;
        text-align: center;
        padding: 2rem 1.5rem;
    }

    .company-logo-container {
        margin-left: 0;
        margin-top: 1.5rem;
        order: 2;
    }

    .company-name {
        margin-bottom: 0.75rem;
    }
}

@media (max-width: 480px) {
    .experience-item {
        padding: 1.5rem 1rem;
    }

    .company-logo {
        width: clamp(70px, 20vw, 90px);
        height: clamp(70px, 20vw, 90px);
    }
}

.contact {
    max-width: 1000px;
    margin: 0 auto;
    padding: clamp(80px, 12vw, 100px) clamp(20px, 8vw, 5%);
    text-align: center;
}

/* ================= CONTACT ICONS ================= */

.contact-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: clamp(1.5rem, 4vw, 2.5rem);
    flex-wrap: wrap;
    margin: clamp(2rem, 6vw, 3rem) 0 clamp(3rem, 8vw, 4rem) 0;
    padding: clamp(1rem, 3vw, 2rem);
    text-align: center;
}

.contact-logo-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    /* FIXED */
    gap: 6px;

    width: clamp(70px, 16vw, 90px);
    height: clamp(70px, 16vw, 90px);

    border-radius: var(--radius);
    background: var(--bg-secondary);
    box-shadow: var(--shadow);

    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);

    flex-shrink: 0;
    position: relative;
    border: 2px solid transparent;
    text-decoration: none;
}

/* Default icon size */
.contact-logo {
    width: 38px;
    height: 38px;

    object-fit: contain;
    object-position: center;

    display: block;
    margin: 0 auto;
    padding: 2px;
    /* FIXES SVG uneven spacing */

    transition: all 0.3s ease;
}

/* Hover effects */
.contact-logo-link:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    border-color: rgba(102, 126, 234, 0.3);
}

.contact-logo-link:hover .contact-logo {
    transform: scale(1.15);
}

/* Label */
.contact-label {
    font-size: clamp(0.7rem, 1.8vw, 0.85rem);
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.2;
    text-align: center;
}

/* ================= CONTACT FORM ================= */

.contact-form {
    background: var(--bg-secondary);
    padding: clamp(2.5rem, 5vw, 3rem);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    max-width: 550px;
    margin: 0 auto;
}

.contact-form .form-group {
    margin-bottom: 1.75rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1.25rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--text-secondary);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
    transform: translateY(-2px);
}

.contact-form .btn {
    width: 100%;
    padding: 1.25rem;
    font-size: 1.1rem;
    margin-top: 1rem;
}

/* ================= RESPONSIVE ================= */

@media (max-width: 768px) {
    .contact-logos {
        gap: 1.25rem;
        padding: 1.5rem;
    }

    .contact-logo-link {
        width: 76px;
        height: 76px;
    }

    .contact-logo {
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 480px) {
    .contact {
        padding: 60px clamp(15px, 5vw, 20px);
    }

    .contact-logos {
        justify-content: center;
        align-items: center;
        gap: 1rem;
    }

    .contact-logo-link {
        width: 68px;
        height: 68px;
    }

    .contact-logo {
        width: 36px;
        height: 36px;
    }
}