/* =====================================================
   GLOBAL
===================================================== */

:root {
    --primary: #009dff;
    --secondary: #ff00ff;

    --text: #222;
    --muted: #555;
    --light-bg: #f0f0f0;
    --white: #fff;
    --dark: #111;
    --header-bg: rgba(0, 0, 0, 0.85);

    --border: rgba(0, 0, 0, 0.8);

    --container-width: 1400px;
    --section-padding: clamp(5rem, 8vw, 8rem);

    --radius-sm: 5px;
    --radius-md: 1rem;
    --radius-lg: 3rem;

    --transition: 0.25s ease-in-out;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    font-family:
        Arial,
        Helvetica,
        sans-serif;

    color: var(--text);
    background: var(--white);

    line-height: 1.6;

    overflow-x: hidden;
}

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

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

button,
input,
textarea {
    font: inherit;
}

button {
    border: 0;
}

ul {
    list-style: none;
}

p,
h1,
h2,
h3,
h4 {
    overflow-wrap: break-word;
}

::selection {
    background: var(--primary);
    color: var(--white);
}


/* =====================================================
   ACCESSIBILITY
===================================================== */

:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 4px;
}

.skip-link {
    position: fixed;
    top: -100px;
    left: 1rem;
    z-index: 9999;

    padding: 0.75rem 1rem;

    background: var(--dark);
    color: var(--white);

    border-radius: 0.5rem;
}

.skip-link:focus {
    top: 1rem;
}


/* =====================================================
   HEADER
===================================================== */

.header {
    position: fixed;

    top: 1rem;
    left: 50%;

    transform: translateX(-50%);

    width: min(
        calc(100% - 2rem),
        1200px
    );

    min-height: 64px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 1.5rem;

    padding: 0.5rem 1.25rem;

    background: var(--header-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);

    color: var(--white);

    border-radius: var(--radius-lg);

    z-index: 1000;
}

.logo {
    flex-shrink: 0;

    color: var(--white);

    font-size: 1.3rem;
    font-weight: 700;

    white-space: nowrap;

    transition: transform var(--transition);
}

.logo:hover {
    transform: scale(1.05);
}


/* =====================================================
   NAVIGATION
===================================================== */

nav {
    min-width: 0;
}

.nav-links {
    display: flex;
    align-items: center;

    gap: clamp(1rem, 2vw, 2rem);
}

.nav-links a,
footer a {
    position: relative;

    color: var(--white);
    font-weight: 500;
}

.nav-links a::after {
    content: "";

    position: absolute;

    left: 0;
    bottom: -8px;

    width: 0;
    height: 3px;

    border-radius: 1rem;

    background:
        linear-gradient(
            to right,
            var(--primary),
            var(--secondary)
        );

    transition: width var(--transition);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
    width: 100%;
}


/* =====================================================
   GITHUB BUTTON
===================================================== */

.visit-btn {
    flex-shrink: 0;

    padding: 0.7rem 1.25rem;

    border-radius: var(--radius-lg);

    color: var(--white);

    font-size: 1rem;
    font-weight: 600;

    background:
        linear-gradient(
            to right,
            var(--primary),
            var(--secondary)
        );

    transition:
        transform var(--transition),
        background var(--transition);
}

.visit-btn:hover {
    transform: scale(1.03);

    background:
        linear-gradient(
            to right,
            var(--secondary),
            var(--primary)
        );
}


/* =====================================================
   MOBILE MENU BUTTON
===================================================== */

.menu-button {
    display: none;

    width: 42px;
    height: 42px;

    align-items: center;
    justify-content: center;

    background: transparent;
    color: var(--white);

    font-size: 1.5rem;

    cursor: pointer;

    border-radius: 50%;
}

.menu-button:hover {
    background: rgba(255, 255, 255, 0.1);
}


/* =====================================================
   GENERAL SECTION
===================================================== */

section {
    width: 100%;
    min-height: 100vh;

    padding:
        var(--section-padding)
        max(1.25rem, 6vw);
}

.container {
    width: min(100%, var(--container-width));
    margin-inline: auto;
}

.section-title {
    margin-bottom: clamp(2rem, 5vw, 3rem);

    text-align: center;

    font-size: clamp(2.3rem, 5vw, 4rem);
    line-height: 1.1;
    font-weight: 700;
}


/* =====================================================
   HERO
===================================================== */

.hero {
    display: flex;
    align-items: center;
    justify-content: center;

    background: #f9f9f9;
}

.hero-container {
    width: min(100%, 1300px);

    display: flex;
    align-items: center;
    justify-content: center;

    gap: clamp(3rem, 8vw, 10rem);
}

.hero-container > img {
    width: clamp(260px, 30vw, 500px);

    aspect-ratio: 1;

    object-fit: cover;

    border-radius: 50%;
}

.info-box {
    max-width: 650px;

    display: flex;
    flex-direction: column;

    align-items: center;
    justify-content: center;

    gap: 1.5rem;

    text-align: center;
}

.info-box h3 {
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    font-weight: 500;

    opacity: 0.8;
}

.info-box h1 {
    margin-bottom: 0.75rem;

    font-size: clamp(2.8rem, 6vw, 4.5rem);
    line-height: 1.05;
    font-weight: 700;
}

.hero-role {
    display: inline-block;

    font-size: clamp(1.3rem, 3vw, 2rem);
    font-weight: 600;

    background:
        linear-gradient(
            to right,
            var(--secondary),
            var(--primary)
        );

    background-clip: text;
    -webkit-background-clip: text;

    color: transparent;
}

.info-box .text > p:last-child {
    margin-top: 1rem;

    color: var(--muted);

    font-size: clamp(1rem, 2vw, 1.2rem);

    text-align: left;
}


/* =====================================================
   BUTTONS
===================================================== */

.btn-group {
    display: flex;
    flex-wrap: wrap;

    justify-content: center;

    gap: 1rem;
}

.btn {
    display: inline-flex;

    align-items: center;
    justify-content: center;

    min-height: 44px;

    padding: 0.65rem 1.4rem;

    border: 2px solid var(--dark);
    border-radius: var(--radius-lg);

    color: var(--dark);

    font-weight: 600;

    cursor: pointer;

    background: transparent;

    transition:
        color var(--transition),
        background-color var(--transition),
        border-color var(--transition),
        transform var(--transition);
}

.btn:hover {
    color: var(--white);
    background: var(--dark);
}

.btn:active {
    transform: translateY(1px);
}

button.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}


/* =====================================================
   SOCIAL ICONS
===================================================== */

.socials {
    display: flex;
    align-items: center;

    gap: 1.5rem;
}

.social-icon {
    display: inline-flex;

    align-items: center;
    justify-content: center;

    width: 44px;
    height: 44px;

    color: #333;

    font-size: 2rem;

    border-radius: 50%;

    transition:
        transform var(--transition),
        color var(--transition);
}

.social-icon:hover {
    transform: translateY(-3px) scale(1.08);
}

.socials .fa-youtube:hover {
    color: #ff0000;
}

.socials .fa-linkedin:hover {
    color: #0077b5;
}

.socials .fa-github:hover {
    color: #000;
}


/* =====================================================
   ABOUT
===================================================== */

#about {
    background: var(--white);
}

.about-content {
    display: grid;

    grid-template-columns:
        minmax(0, 1fr)
        minmax(0, 1fr);

    align-items: center;

    gap: clamp(2rem, 6vw, 5rem);
}

.about-image img {
    width: 100%;

    border-radius: var(--radius-sm);

    box-shadow:
        0 8px 25px rgba(0, 0, 0, 0.1);
}

.about-text {
    font-size: 1.1rem;
}

.about-text h3 {
    margin-bottom: 1rem;

    color: #4a90e2;

    font-size: clamp(1.5rem, 3vw, 1.8rem);
}

.about-text p {
    margin-bottom: 1rem;

    color: var(--muted);

    text-align: left;
}


/* =====================================================
   SKILLS
===================================================== */

.skills {
    background: var(--light-bg);
}

.skills-info {
    display: grid;

    grid-template-columns:
        minmax(0, 1.5fr)
        minmax(220px, 0.7fr);

    align-items: center;

    gap: clamp(2rem, 5vw, 5rem);
}

.skills-info > img {
    width: min(100%, 400px);

    margin-inline: auto;

    border-radius: var(--radius-lg);
}

.grid {
    display: grid;

    grid-template-columns: repeat(2, minmax(0, 1fr));

    gap: 1.5rem;
}

.grid-card {
    min-width: 0;

    display: flex;
    flex-direction: column;

    padding: clamp(1.5rem, 3vw, 2.5rem);

    border: 2px solid var(--dark);
    border-radius: var(--radius-lg);

    background: transparent;

    transition:
        transform var(--transition),
        background-color var(--transition),
        color var(--transition);
}

.grid-card:hover {
    transform: translateY(-5px);

    background-color: var(--dark);
    color: var(--white);
}

.grid-card-title {
    display: flex;

    align-items: flex-start;

    gap: 0.75rem;
}

.grid-card-title i {
    flex-shrink: 0;

    margin-top: 0.3rem;

    font-size: 1.5rem;
}

.grid-card span {
    font-size: clamp(1.15rem, 2vw, 1.5rem);
    font-weight: 600;

    background:
        linear-gradient(
            to right,
            var(--primary),
            var(--secondary)
        );

    background-clip: text;
    -webkit-background-clip: text;

    color: transparent;
}

.grid-card h3 {
    margin: 1rem 0 0.75rem;

    font-size: 1.05rem;
}

.grid-card p {
    color: inherit;

    font-size: 1rem;
    line-height: 1.7;

    text-align: left;
}


/* =====================================================
   PROJECTS
===================================================== */

.projects {
    background: var(--white);
}

.projects-grid {
    display: grid;

    grid-template-columns:
        repeat(
            auto-fit,
            minmax(min(100%, 300px), 1fr)
        );

    gap: 2rem;
}

.project-card {
    min-width: 0;

    display: flex;
    flex-direction: column;

    align-items: center;

    gap: 1.25rem;

    padding: 2rem;

    text-align: center;

    border: 2px solid var(--dark);
    border-radius: var(--radius-lg);

    transition:
        background-color var(--transition),
        color var(--transition),
        transform var(--transition);
}

.project-card:hover {
    background-color: var(--dark);
    color: var(--white);

    transform: translateY(-8px);
}

.project-card img {
    width: 100%;
    aspect-ratio: 16 / 10;

    object-fit: cover;

    border-radius: var(--radius-md);
}

.project-card h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    line-height: 1.2;
}

.project-card p {
    color: var(--muted);

    line-height: 1.7;
}

.project-card:hover p {
    color: #ddd;
}

.project-card h4 {
    color: #288fd3;

    font-size: 0.95rem;
}

.project-card .btn-group {
    margin-top: auto;
}

.project-card:hover .btn {
    border-color: var(--white);
    color: var(--white);
}

.project-card:hover .btn:hover {
    border-color: var(--white);
    background-color: var(--white);
    color: var(--dark);
}


/* =====================================================
   YOUTUBE
===================================================== */

.youtube {
    margin-top: 3rem;

    padding: clamp(1.5rem, 4vw, 2rem);

    background: var(--light-bg);

    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
}

.youtube-title {
    display: flex;
    align-items: center;

    gap: 0.75rem;
}

.youtube-title i {
    color: #cc0000;

    font-size: 1.5rem;
}

.youtube-title h3 {
    color: #288fd3;

    font-size: 1.4rem;
}

.youtube p {
    margin: 1.2rem 0 2rem;

    color: var(--muted);

    font-size: 1.05rem;
}


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

#contact {
    background: var(--light-bg);
}

#contact p {
    font-size: 1.05rem;
}

.contact-content {
    display: grid;

    grid-template-columns:
        minmax(0, 0.9fr)
        minmax(0, 1.1fr);

    gap: clamp(2rem, 6vw, 5rem);
}

.contact-info,
.contact-form {
    min-width: 0;
}

.contact-info h3,
.contact-form h3 {
    margin-bottom: 1.5rem;

    color: #288fd3;

    font-size: 1.5rem;
}

.build-together {
    margin-bottom: 2.5rem;
}

.contact-info p {
    display: flex;

    align-items: center;

    gap: 0.75rem;

    margin-bottom: 1rem;

    color: var(--muted);
}

.contact-info p a {
    overflow-wrap: anywhere;
}

.contact-info i {
    flex: 0 0 20px;

    color: #333;

    text-align: center;
}

.contact-det .socials {
    margin-top: 1.5rem;
}


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

.contact-form form {
    width: 100%;
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;

    margin-bottom: 0.4rem;

    color: #333;

    font-weight: 600;

    text-align: left;
}

.contact-form input,
.contact-form textarea {
    width: 100%;

    padding: 0.9rem 1rem;

    border: 1px solid #777;
    border-radius: var(--radius-sm);

    background: var(--white);
    color: var(--text);

    font-size: 1rem;

    transition:
        border-color var(--transition),
        box-shadow var(--transition);
}

.contact-form textarea {
    min-height: 150px;

    resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #777;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--primary);

    outline: none;

    box-shadow:
        0 0 0 3px rgba(0, 157, 255, 0.15);
}

.contact-form input:invalid:not(:placeholder-shown),
.contact-form textarea:invalid:not(:placeholder-shown) {
    border-color: #dc3545;
}

.contact-form button[type="submit"] {
    font-size: 1rem;
}


/* =====================================================
   HONEYPOT
===================================================== */

.form-honeypot {
    position: absolute;

    left: -9999px;

    width: 1px;
    height: 1px;

    overflow: hidden;
}


/* =====================================================
   CONTACT STATUS
===================================================== */

.contact-status {
    width: 100%;

    min-height: 0;

    margin-top: 1rem;
    padding: 0;

    border-radius: var(--radius-sm);

    font-size: 1rem;
    line-height: 1.5;

    text-align: center;

    transition:
        padding var(--transition),
        background-color var(--transition),
        border-color var(--transition);
}

.contact-status.loading,
.contact-status.success,
.contact-status.error {
    padding: 0.75rem 1rem;
}

.contact-status.loading {
    background-color: #e8f4ff;

    border: 1px solid #288fd3;

    color: #1769aa;
}

.contact-status.success {
    background-color: #eaf8ee;

    border: 1px solid #28a745;

    color: #217a35;
}

.contact-status.error {
    background-color: #fff0f0;

    border: 1px solid #dc3545;

    color: #b02a37;
}


/* =====================================================
   SCROLLBAR
===================================================== */

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background-color: #ddd;
}

::-webkit-scrollbar-thumb {
    border-radius: 10px;

    background:
        linear-gradient(
            to bottom,
            var(--primary),
            var(--secondary)
        );
}


/* =====================================================
   FOOTER
===================================================== */

footer {
    min-height: 10rem;

    width: 100%;

    display: flex;
    flex-direction: column;

    align-items: center;
    justify-content: center;

    padding: 2rem 1.25rem;

    background-color: #333;

    color: var(--white);

    text-align: center;
}

footer ul {
    display: flex;
    flex-wrap: wrap;

    align-items: center;
    justify-content: center;

    gap: 1.5rem;
}

footer ul li a {
    font-weight: 600;
}

footer .copyright {
    margin-top: 1.5rem;
    padding-top: 1rem;

    border-top: 1px solid rgba(255, 255, 255, 0.2);

    font-size: 0.95rem;
    font-weight: 300;
}


/* =====================================================
   TABLET
===================================================== */

@media (max-width: 1100px) {

    .header {
        width: min(
            calc(100% - 1.5rem),
            950px
        );
    }

    .hero-container {
        gap: 3rem;
    }

    .skills-info {
        grid-template-columns: 1fr;
    }

    .skills-info > img {
        width: min(60vw, 350px);

        order: -1;
    }

}


/* =====================================================
   TABLET / SMALL LAPTOP
===================================================== */

@media (max-width: 850px) {

    .header {
        gap: 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .visit-btn {
        display: none;
    }

    .hero-container {
        flex-direction: column;

        text-align: center;
    }

    .hero-container > img {
        width: min(65vw, 350px);
    }

    .info-box {
        width: 100%;
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .about-image {
        max-width: 700px;

        margin-inline: auto;
    }

    .contact-info {
        max-width: 700px;
    }

}


/* =====================================================
   MOBILE
===================================================== */

@media (max-width: 650px) {

    html {
        scroll-padding-top: 80px;
    }

    section {
        padding:
            6rem
            1rem
            4rem;
    }

    .header {
        top: 0.75rem;

        width: calc(100% - 1rem);

        padding: 0.5rem 0.8rem;

        border-radius: 1.5rem;
    }

    .logo {
        font-size: 1.1rem;
    }

    .menu-button {
        display: inline-flex;
    }

    .nav-links {
        position: absolute;

        top: calc(100% + 0.75rem);
        left: 0;

        width: 100%;

        display: none;

        flex-direction: column;

        gap: 0;

        padding: 0.75rem;

        background: rgba(0, 0, 0, 0.95);

        border-radius: 1.5rem;

        box-shadow:
            0 10px 30px rgba(0, 0, 0, 0.25);
    }

    .nav-links.active {
        display: flex;
    }

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

    .nav-links a {
        display: block;

        width: 100%;

        padding: 0.85rem;

        text-align: center;
    }

    .nav-links a::after {
        display: none;
    }

    .hero-container > img {
        width: min(80vw, 320px);
    }

    .info-box h1 {
        font-size: clamp(2.4rem, 13vw, 3.5rem);
    }

    .hero-role {
        font-size: 1.3rem;
    }

    .info-box .text > p:last-child {
        text-align: center;
    }

    .btn-group {
        width: 100%;
    }

    .btn-group .btn {
        flex: 1 1 auto;
    }

    .socials {
        gap: 1rem;
    }

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

    .skills-info > img {
        width: min(80vw, 320px);
    }

    .project-card {
        padding: 1.5rem;
    }

    .project-card .btn-group {
        flex-direction: column;
    }

    .project-card .btn {
        width: 100%;
    }

    .youtube .btn {
        width: 100%;
    }

    .contact-info p {
        align-items: flex-start;
    }

    footer ul {
        gap: 1rem;
    }

}


/* =====================================================
   REDUCED MOTION
===================================================== */

@media (prefers-reduced-motion: reduce) {

    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }

}