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

:root {
    --blue: #5b8dee;
    --magenta: #1a3a6b;
    --cyan: #93bbf5;
    --dark: #07111f;
    --dark-2: #0d1b2e;
    --dark-3: #122337;
    --card-bg: #0f1f32;
    --text: #f0e8d8;
    --text-muted: #8899aa;
    --border: rgba(255, 255, 255, 0.07);
    --gradient: linear-gradient(135deg, var(--blue), var(--magenta));
    --gradient-h: linear-gradient(135deg, var(--magenta), var(--blue));
    --radius: 1rem;
    --radius-sm: 0.5rem;
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--dark);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* ===================================================
   SCROLLBAR
   =================================================== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--dark);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--blue), var(--magenta));
    border-radius: 3px;
}

/* ===================================================
   HEADER / NAV
   =================================================== */
.header {
    position: fixed;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 3rem;
    background: rgba(13, 13, 18, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    color: white;
    padding: 0.65rem 1.5rem;
    border-radius: 3rem;
    z-index: 1000;
    transition: var(--transition);
    white-space: nowrap;
}

.header.scrolled {
    background: rgba(13, 13, 18, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.logo {
    font-size: 1.15rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: var(--transition);
}

.logo:hover {
    opacity: 0.8;
}

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

.nav-link {
    position: relative;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 400;
    transition: color var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    border-radius: 2px;
    background: var(--gradient);
    transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: white;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

#menu-icon {
    display: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--text);
}

.visit-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1.2rem;
    border-radius: 3rem;
    border: none;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    font-size: 0.85rem;
    color: white;
    cursor: pointer;
    background: var(--gradient);
    transition: var(--transition);
}

.visit-btn:hover {
    background: var(--gradient-h);
    transform: scale(1.05);
    box-shadow: 0 0 16px rgba(91, 141, 238, 0.35);
}

/* ===================================================
   SECTIONS – COMMON
   =================================================== */
section {
    min-height: 100vh;
    padding: 6rem 8%;
    width: 100%;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-label {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    color: var(--text);
}

/* ===================================================
   ABOUT / HERO
   =================================================== */
.about {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    background: radial-gradient(ellipse at 20% 50%, rgba(91, 141, 238, 0.07) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(26, 58, 107, 0.1) 0%, transparent 60%);
}

.about-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6rem;
    flex-wrap: wrap;
}

/* Avatar */
.avatar-wrapper {
    position: relative;
    width: 220px;
    height: 220px;
    flex-shrink: 0;
}

.avatar-ring {
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background: var(--gradient);
    animation: spin 6s linear infinite;
    mask: radial-gradient(circle at center, transparent 48%, black 50%);
    -webkit-mask: radial-gradient(circle at center, transparent 48%, black 50%);
}

.avatar-initials {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--dark-3);
    border: 3px solid var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--dark-3), var(--dark-2));
    color: var(--text);
    letter-spacing: 0.05em;
}

/* Profile photo inside avatar wrapper */
.avatar-photo {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    object-position: center top;
    border: 3px solid var(--dark);
    position: relative;
    z-index: 1;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Info Box */
.info_box {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 480px;
}

.info_box h3 {
    font-size: 1.3rem;
    font-weight: 300;
    color: var(--text-muted);
}

.info_box h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--text);
}

.typed-text {
    font-size: 1.3rem;
    font-weight: 400;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    min-width: 2ch;
}

.typed-text::after {
    content: '|';
    -webkit-text-fill-color: var(--blue);
    animation: blink 0.8s step-end infinite;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

.about-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.8;
}

/* Buttons */
.btn-group {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border-radius: 3rem;
    padding: 0.65rem 1.6rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    border: none;
}

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

.btn-primary:hover {
    background: var(--gradient-h);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(91, 141, 238, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1.5px solid var(--border);
}

.btn-outline:hover {
    border-color: var(--blue);
    color: var(--blue);
    transform: translateY(-2px);
}

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

.btn-sm {
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
}

/* Socials */
.socials {
    display: flex;
    gap: 1.2rem;
}

.socials a {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1.5px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    color: var(--text-muted);
    transition: var(--transition);
}

.socials a:hover {
    border-color: var(--blue);
    color: var(--blue);
    background: rgba(91, 141, 238, 0.1);
    transform: translateY(-3px);
}

/* Scroll hint */
.scroll-hint {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    animation: fadeIn 2s ease 1.5s both;
}

.bounce {
    animation: bounce 1.4s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(6px);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* ===================================================
   PROJECTS
   =================================================== */
.projects {
    background: var(--dark-2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.8rem;
    width: 100%;
    max-width: 1100px;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.project-card:hover {
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
    border-color: rgba(91, 141, 238, 0.3);
    transform: translateY(-6px);
}

/* Image placeholder (colored icon panels) */
.project-img-wrapper {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.project-img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.pi-blue {
    background: linear-gradient(135deg, #003d66, #0070b8);
}

.pi-purple {
    background: linear-gradient(135deg, #2d0066, #7000cc);
}

.pi-cyan {
    background: linear-gradient(135deg, #003344, #006680);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.overlay-btn {
    background: white;
    color: var(--dark);
    padding: 0.5rem 1.2rem;
    border-radius: 3rem;
    font-weight: 600;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transform: translateY(10px);
    transition: var(--transition);
}

.project-card:hover .overlay-btn {
    transform: translateY(0);
}

/* Project Info */
.project-info {
    padding: 1.4rem;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tag {
    background: rgba(91, 141, 238, 0.1);
    border: 1px solid rgba(91, 141, 238, 0.22);
    color: var(--blue);
    font-size: 0.72rem;
    font-weight: 500;
    padding: 0.2rem 0.7rem;
    border-radius: 3rem;
}

.project-info h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text);
}

.project-info p {
    font-size: 0.87rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.project-links {
    display: flex;
    gap: 0.6rem;
    margin-top: 0.3rem;
    flex-wrap: wrap;
}

/* ===================================================
   CONTACT
   =================================================== */
.contact {
    background: var(--dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 3rem;
    width: 100%;
    max-width: 1000px;
}

/* Info cards */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.2rem;
    transition: var(--transition);
    opacity: 0;
    transform: translateX(-20px);
}

.contact-card.visible {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.3s ease;
}

.contact-card:hover {
    border-color: rgba(91, 141, 238, 0.35);
}

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: white;
    flex-shrink: 0;
}

.contact-card h4 {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.15rem;
}

.contact-card a,
.contact-card span {
    font-size: 0.88rem;
    color: var(--text);
    word-break: break-all;
    transition: color var(--transition);
}

.contact-card a:hover {
    color: var(--blue);
}

/* Form */
.contact-form {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.contact-form.visible {
    opacity: 1;
    transform: translateX(0);
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-muted);
}

.form-group input,
.form-group textarea {
    background: var(--dark-3);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.7rem 1rem;
    color: var(--text);
    font-family: 'Poppins', sans-serif;
    font-size: 0.88rem;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
    resize: vertical;
}

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

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(91, 141, 238, 0.12);
}

.form-group input.error,
.form-group textarea.error {
    border-color: #ff4d6d;
    box-shadow: 0 0 0 3px rgba(255, 77, 109, 0.1);
}

.form-success {
    display: none;
    align-items: center;
    gap: 0.5rem;
    color: #4ade80;
    font-size: 0.88rem;
    background: rgba(74, 222, 128, 0.08);
    border: 1px solid rgba(74, 222, 128, 0.2);
    border-radius: var(--radius-sm);
    padding: 0.6rem 1rem;
}

.form-success.show {
    display: flex;
}

/* ===================================================
   FOOTER
   =================================================== */
.footer {
    background: var(--dark-2);
    border-top: 1px solid var(--border);
    padding: 1.8rem 8%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-socials {
    display: flex;
    gap: 1rem;
}

.footer-socials a {
    color: var(--text-muted);
    font-size: 1.1rem;
    transition: color var(--transition);
}

.footer-socials a:hover {
    color: var(--blue);
}

/* ===================================================
   RESPONSIVE
   — close button only visible inside mobile drawer
   =================================================== */
.nav-close-btn {
    display: none;
}

/* ===================================================
   RESPONSIVE
   =================================================== */
@media (max-width: 900px) {
    .contact-container {
        grid-template-columns: 1fr;
    }

    .about-container {
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    section {
        padding: 5rem 5%;
    }

    /* Hamburger */
    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: 100vw;
        max-width: 300px;
        height: 100vh;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2.5rem;
        background: var(--dark-2);
        border-left: 1px solid var(--border);
        transform: translateX(100%);
        visibility: hidden;
        transition: transform 0.35s ease, visibility 0.35s ease;
        z-index: 999;
    }

    .nav-links.open {
        transform: translateX(0);
        visibility: visible;
    }

    /* Close button inside drawer */
    .nav-close-btn {
        position: absolute;
        top: 1.2rem;
        right: 1.2rem;
        background: transparent;
        border: 1.5px solid var(--border);
        color: var(--text);
        width: 36px;
        height: 36px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1rem;
        cursor: pointer;
        transition: var(--transition);
    }

    .nav-close-btn:hover {
        background: var(--blue);
        border-color: var(--blue);
        color: white;
    }

    /* Backdrop overlay */
    .nav-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.55);
        z-index: 998;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.35s ease;
    }

    .nav-backdrop.open {
        opacity: 1;
        pointer-events: all;
    }

    .nav-link {
        font-size: 1.1rem;
    }

    #menu-icon {
        display: block;
    }

    .header {
        gap: 1.5rem;
    }

    .about-container {
        flex-direction: column;
        text-align: center;
    }

    .info_box {
        align-items: center;
    }

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

    .footer {
        justify-content: center;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 0.6rem 1rem;
        gap: 1rem;
    }

    .logo {
        font-size: 1rem;
    }

    .visit-btn {
        display: none;
    }
}