/* ============================================
   1. RESET & ROOT VARIABLES
============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box; /* width/height includes padding+border */
}

:root {
    /* ---- COLOR PALETTE ----
       Change any value here and it updates EVERYWHERE that variable is used. */
    --wine-red: #7B1E2B;       /* primary: headings, buttons, highlights */
    --beige: #F5F0E6;          /* main page background */
    --cream: #FAF7F2;          /* card/section backgrounds */
    --soft-brown: #D8C3A5;     /* accents, borders */
    --white: #FFFFFF;          /* cards, content areas */
    --dark-text: #3D2D24;      /* main body text color */
}

body {
    font-family: 'Poppins', sans-serif;  /* body text font */
    background-color: var(--beige);
    color: var(--dark-text);
    line-height: 1.7;
    overflow-x: hidden; /* prevents the floating blobs from causing horizontal scroll */
}

h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif; /* elegant heading font */
    color: var(--wine-red);
}

a {
    text-decoration: none;
    color: inherit; /* links use the surrounding text color, not default blue */
}

/* ============================================
   2. GLASSMORPHISM CARD (reused everywhere)
============================================ */

.glass-card {
    background: rgba(255, 255, 255, 0.55); /* white, but 55% see-through */
    backdrop-filter: blur(12px);           /* blurs whatever is BEHIND the card */
    border: 1px solid rgba(216, 195, 165, 0.6); /* soft-brown, semi-transparent border */
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(123, 30, 43, 0.08); /* subtle wine-red tinted shadow */
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

/* ============================================
   3. NAVBAR
============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(245, 240, 230, 0.75); /* beige, semi-transparent */
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(216, 195, 165, 0.5);
}

.nav-container {
    max-width: 1150px;
    margin: 0 auto;
    padding: 1.1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2.2rem;
}

.nav-link {
    font-weight: 500;
    position: relative;
    padding-bottom: 4px;
}

.nav-link::after {
    /* invisible underline that grows on hover/active, instead of always showing */
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0%;
    height: 2px;
    background: var(--wine-red);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%; /* underline expands fully on hover or if it's the active page */
}

/* Hamburger button: hidden on desktop by default (shown in media query below) */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
}

.hamburger span {
    width: 26px;
    height: 3px;
    background: var(--wine-red);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* When menu is open, animate the 3 lines into an "X" shape */
.hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ============================================
   4. BUTTONS
============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1.8rem;
    border-radius: 50px; /* fully rounded "pill" button */
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--wine-red);
    color: var(--white);
}

.btn-primary:hover {
    background: #5e1620; /* darker wine red on hover */
    transform: translateY(-4px);
    box-shadow: 0 12px 25px rgba(123, 30, 43, 0.35); /* glow effect */
}

.btn-outline {
    background: transparent;
    color: var(--wine-red);
    border: 2px solid var(--wine-red);
}

.btn-outline:hover {
    background: var(--wine-red);
    color: var(--white);
    transform: translateY(-4px);
}

.full-width {
    width: 100%;
    justify-content: center;
}

/* ============================================
   5. HERO SECTION
============================================ */

.hero {
    position: relative; /* needed so the floating blobs can be positioned inside it */
    min-height: 88vh;
    display: flex;
    align-items: center;
    padding: 6.5rem 1.5rem 3rem;
    overflow: hidden; /* keeps blobs from spilling outside the section */
}

.hero-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0;
    position: relative;
    z-index: 2; /* keeps text ABOVE the decorative blobs */
}

.hero-text {
    width: 100%;
}

.hero-name {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    font-weight: 800;
    color: #7A1F2B;
    letter-spacing: 0.5px;
    margin-bottom: 24px;
    animation: fadeInUp 0.9s ease both;
}

.hero-text h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.8rem, 3.6vw, 2.6rem);
    font-weight: 700;
    line-height: 1.3;
    color: #1F1A17;
    max-width: 900px;
    margin: 0 auto 2.4rem;
    animation: fadeInUp 0.9s ease both;
    animation-delay: 0.15s; /* heading fades in slightly after the name */
}

.hero-buttons {
    display: flex;
    gap: 1.2rem;
    flex-wrap: wrap;
    justify-content: center;
    animation: fadeInUp 0.9s ease both;
    animation-delay: 0.3s; /* buttons fade in last, after name and heading */
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Decorative floating blobs */
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(50px);
    opacity: 0.5;
    z-index: 1;
    animation: float 8s ease-in-out infinite; /* gentle up-and-down floating loop */
}

.blob-1 {
    width: 320px;
    height: 320px;
    background: var(--wine-red);
    top: -80px;
    left: -100px;
    opacity: 0.18;
}

.blob-2 {
    width: 260px;
    height: 260px;
    background: var(--soft-brown);
    bottom: -60px;
    right: -60px;
    opacity: 0.35;
    animation-delay: 2s; /* starts its float cycle slightly offset from blob-1 */
}

.blob-3 {
    width: 300px;
    height: 300px;
    background: var(--wine-red);
    top: -60px;
    right: -120px;
    opacity: 0.14;
    animation-delay: 1s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-25px); }
}

/* ============================================
   6. SECTION-WIDE STYLES + SCROLL REVEAL
============================================ */

.section-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 7rem 1.5rem;
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 4vw, 2.6rem);
    letter-spacing: 0.3px;
    margin-bottom: 4rem;
}

/* Elements with class "reveal" start invisible+lower,
   then JS adds "visible" once they scroll into view */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   7. ABOUT SECTION
============================================ */

.about-card {
    padding: 3rem 3.2rem;
    max-width: 820px;
    margin: 0 auto;
    line-height: 1.85;
}

.about-card p {
    margin-bottom: 1rem;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

.skill-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--white);
    border: 1px solid var(--soft-brown);
    color: var(--wine-red);
    padding: 0.5rem 1.1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.skill-badge:hover {
    transform: scale(1.1); /* badge grows slightly on hover */
    background: var(--wine-red);
    color: var(--white);
}

/* ============================================
   8. PROJECTS SECTION
============================================ */

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

.project-card {
    padding: 2.2rem;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(123, 30, 43, 0.2);
    border-color: var(--wine-red);
}

.project-icon {
    font-size: 2.2rem;
    color: var(--wine-red);
    margin-bottom: 1rem;
}

.project-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.project-card p {
    color: var(--dark-text);
    opacity: 0.85;
    font-size: 0.95rem;
    margin-bottom: 1.3rem;
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-badges span {
    background: rgba(123, 30, 43, 0.08);
    color: var(--wine-red);
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 600;
}

/* ============================================
   9. CONTACT SECTION
============================================ */

.contact-wrapper {
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
    align-items: flex-start;
}

.contact-info {
    flex: 1;
    min-width: 280px;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 1.5rem;
}

.contact-item:hover {
    transform: translateY(-5px);
    border-color: var(--wine-red);
}

.contact-item i {
    font-size: 1.6rem;
    color: var(--wine-red);
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

.contact-item p {
    font-size: 0.85rem;
    opacity: 0.8;
}

.contact-form {
    flex: 1.3;
    min-width: 280px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.contact-form label {
    font-weight: 600;
    font-size: 0.9rem;
    margin-top: 0.6rem;
}

.contact-form input,
.contact-form textarea {
    padding: 0.8rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--soft-brown);
    background: rgba(255, 255, 255, 0.7);
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    color: var(--dark-text);
    resize: vertical; /* lets user resize the textarea up/down only */
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none; /* removes default browser blue outline */
    border-color: var(--wine-red);
    box-shadow: 0 0 0 3px rgba(123, 30, 43, 0.12); /* soft glow ring instead */
}

.contact-form button {
    margin-top: 1rem;
}

/* ============================================
   10. FOOTER
============================================ */

.footer {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--wine-red);
    color: var(--white);
    font-size: 0.9rem;
}

/* ============================================
   11. RESPONSIVE DESIGN — TABLET & MOBILE
============================================ */

@media (max-width: 900px) {
    .hero-text h1 {
        line-height: 1.3;
    }
}

@media (max-width: 768px) {
    /* Show the hamburger button, hide the normal nav links by default */
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 64px;
        right: 0;
        height: calc(100vh - 64px);
        width: 220px;
        background: var(--cream);
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateX(100%); /* hidden off-screen to the right by default */
        transition: transform 0.4s ease; /* smooth slide-in animation */
        box-shadow: -5px 0 20px rgba(0,0,0,0.08);
    }

    .nav-links.open {
        transform: translateX(0); /* slides into view when "open" class is added by JS */
    }

    .contact-wrapper {
        flex-direction: column;
    }
}

@media (max-width: 500px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .section-container {
        padding: 3.5rem 1.2rem;
    }
}

/* ============================================
   ===================== CUSTOMIZATION GUIDE =====================
   1. Change your name in index.html (search: "Lekisha")
   2. Change subtitle in index.html (search: "B.Tech Information
      Technology Student | Cloud & Web Development Enthusiast")
   3. Change email, GitHub link, LinkedIn link in index.html
      (search: "youremail@example.com", "yourusername")
   4. Replace profile image in the assets/ folder
      (search: "profile.jpg")
   5. Colors can be changed in :root (CSS variables at the top
      of this file) — just edit the 6 hex codes and the whole
      site updates automatically.
   ================================================================
============================================ */