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

:root {
    --bg-dark: #0f0f0f;
    --bg-light: #1c1c1c;
    --accent: #4df2c9;
    --glass-bg: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.18);
    
    /* Project Mockup Variables */
    --prj-card-bg: rgba(255, 255, 255, 0.05);
    --prj-border: rgba(255, 255, 255, 0.1);
    --desktop-width: 1280px;
    --desktop-height: 800px;
}

html {
    scroll-behavior: smooth; /* Enables smooth scrolling for anchor links */
}

body {
    font-family: "Poppins", sans-serif;
    background: linear-gradient(135deg, var(--bg-dark), var(--bg-light));
    color: #ffffff;
    line-height: 1.6;
}

/* =====================
   NAVBAR
===================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: rgba(15, 15, 15, 0.85);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.logo {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--accent);
    text-decoration: none;
}

.navbar ul {
    display: flex;
    gap: 18px;
    list-style: none;
}

.navbar a {
    text-decoration: none;
    color: #ffffff;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.navbar a:hover,
.navbar a.active {
    color: var(--accent);
}

/* =====================
   HERO / HEADER
===================== */
#home {
    text-align: center;
    padding: 120px 20px 70px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

#home img {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--accent);
    box-shadow: 0 0 25px rgba(77, 242, 201, 0.5);
    margin-bottom: 18px;
}

#home h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

#home p {
    opacity: 0.85;
    font-size: 1.1rem;
    margin-bottom: 25px;
}

/* =====================
   BUTTONS
===================== */
.btn {
    display: inline-block;
    padding: 12px 26px;
    margin: 6px;
    background: var(--accent);
    color: #000;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.25s ease;
}

.btn:hover {
    background: #38d8b4;
    transform: translateY(-2px);
}

/* =====================
   SECTIONS
===================== */
.section {
    padding: 90px 22px;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
}

.section h2 {
    font-size: 2.2rem;
    margin-bottom: 30px;
    color: var(--accent);
}

.content-text {
    max-width: 760px;
    margin: auto;
    font-size: 1.05rem;
    opacity: 0.9;
    margin-bottom: 18px;
}

/* =====================
   GLASS CARDS & GRIDS
===================== */
.skill-card,
.project-card,
.timeline-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(15px);
    border-radius: 16px;
    padding: 20px;
    transition: 0.3s ease;
}

.skill-title {
    margin: 25px 0 20px;
    color: var(--accent);
}

.skill-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px;
    text-align: center;
}

.skill-card i {
    font-size: 40px;
    transition: 0.3s ease;
}

.skill-card img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.skill-card:hover i,
.skill-card:hover img {
    transform: scale(1.2);
}

.skill-card:hover,
.project-card:hover,
.timeline-item:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.1);
}

.skill-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 20px;
}

/* =====================
   TIMELINE
===================== */
.timeline {
    max-width: 720px;
    margin: auto;
    display: grid;
    gap: 25px;
}

.timeline-item {
    text-align: left;
    padding: 25px;
    border-left: 4px solid var(--accent);
    display: flex;
    align-items: center;
    gap: 20px;
}

.edu-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    background: #ffffff;
    padding: 5px;
    border-radius: 8px;
    flex-shrink: 0;
}

.edu-text h3 {
    margin-bottom: 5px;
    font-size: 1.15rem;
}

.edu-text p {
    font-size: 0.95rem;
    opacity: 0.85;
}

/* =====================
   PROJECTS BROWSER MOCKUP
===================== */
.projects-container {
    padding: 80px 20px;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.browser-window {
    background: var(--prj-card-bg);
    border: 1px solid var(--prj-border);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: left;
}

.browser-window:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border-color: var(--accent);
}

.browser-header {
    background: rgba(255, 255, 255, 0.08);
    padding: 12px;
    display: flex;
    gap: 6px;
    border-bottom: 1px solid var(--prj-border);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
}

.preview-viewport {
    width: 100%;
    height: 220px;
    position: relative;
    overflow: hidden;
    background: #1a1a1a;
}

.preview-viewport iframe {
    width: var(--desktop-width);
    height: var(--desktop-height);
    border: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.25);
    transform-origin: center;
    pointer-events: none; 
}

.project-meta {
    padding: 20px;
}

.project-meta h3 {
    margin: 0 0 8px 0;
    color: #fff;
    font-size: 1.25rem;
}

.project-meta p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 16px 0 18px;
}

.tech-stack span {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    font-size: 0.82rem;
    font-weight: 600;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    transition: 0.3s ease;
}

.tech-stack span i {
    font-size: 1rem;
}

.tech-stack span:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    background: rgba(77, 242, 201, 0.08);
    box-shadow: 0 8px 18px rgba(77, 242, 201, 0.12);
}

.view-btn {
    display: inline-block;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.view-btn:hover {
    text-decoration: underline;
}

/* =====================
   CONTACT FORM
===================== */
#contact-form {
    max-width: 420px;
    margin: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

#contact-form input,
#contact-form textarea {
    padding: 14px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: #ffffff;
    font-size: 1rem;
}

#contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

#contact-form button {
    padding: 14px;
    border-radius: 12px;
    border: none;
    background: var(--accent);
    font-weight: 700;
    cursor: pointer;
}

#contact-form button:hover {
    background: #39dcaf;
}

/* =====================
   FOOTER & ANIMATIONS
===================== */
.site-footer {
    text-align: center;
    padding: 30px 15px;
    border-top: 1px solid rgba(255,255,255,0.08);
    background: #0d0d0d;
    font-size: 0.9rem;
    opacity: 0.85;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: 0.8s ease;
}

.fade-in.show {
    opacity: 1;
    transform: translateY(0);
}

/* =====================
   RESPONSIVE
===================== */
@media (max-width: 768px) {
    #home h1 { font-size: 2rem; }
    .navbar ul { display: none; }
    .section h2 { font-size: 1.9rem; }
}

@media (max-width: 480px) {
    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
}