/* ===== VARIABLES & BASE ===== */
:root {
     color-scheme: dark;
    --nav-bg: rgba(30, 20, 36, 0.97);
    --bg-color: #1E1424;
    --surface-color: #2A1B33;
    --surface-2: #35233F;
    --text-color: #F7EDF2;
    --muted-color: #C3A9BA;
    --main-color: #F08CAE;
    --accent-2: #C9A7F5;
    --error-color: #FF8A8A;
    --success-color: #8FE3B0;
    --header-bg: rgba(30, 20, 36, 0.78);
    --header-height: 7rem;
    --gradient: linear-gradient(90deg, var(--main-color) 0%, var(--accent-2) 100%);
}
/* ===== LIGHT THEME ===== */
:root[data-theme="light"] {
    color-scheme: light;
    --bg-color: #FFF5F8;
    --surface-color: #FCE9F1;
    --surface-2: #F7DCE8;
    --text-color: #3A1F33;
    --muted-color: #6E5266;
    --main-color: #C2417A;
    --accent-2: #7C4DC4;
    --error-color: #C62828;
    --success-color: #1B7F4B;
    --header-bg: rgba(255, 245, 248, 0.85);
    --nav-bg: rgba(255, 245, 248, 0.97);
}

:root[data-theme="light"] .header {
    border-bottom-color: rgba(58, 31, 51, 0.12);
}

/* ===== THEME TOGGLE BUTTON ===== */
.theme-toggle {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 4.4rem;
    height: 4.4rem;
    font-size: 2.2rem;
    color: var(--main-color);
    background: transparent;
    border: 2px solid var(--main-color);
    border-radius: 50%;
    cursor: pointer;
    transition: 0.3s ease-in-out;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
    color: var(--bg-color);
    background: var(--main-color);
    transform: rotate(20deg) scale(1.08);
}

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

html {
    font-size: 62.5%;
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: 'Poppins', Arial, sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 1.6rem;
    line-height: 1.6;
    padding-top: var(--header-height);
}

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

a {
    color: var(--main-color);
}

ul, ol {
    list-style: none;
}

section {
    padding: 8rem clamp(1.6rem, 8%, 9rem);
}

:focus-visible {
    outline: 3px solid var(--accent-2);
    outline-offset: 3px;
}

::-webkit-scrollbar { width: 1.2rem; }
::-webkit-scrollbar-track { background: var(--surface-color); }
::-webkit-scrollbar-thumb { background: var(--main-color); border-radius: 1rem; }

/* ===== SHARED ===== */
.gradient-text {
    color: var(--main-color);
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.heading {
    text-align: center;
    margin-bottom: 5rem;
    font-size: clamp(3.4rem, 6vw, 5.6rem);
    line-height: 1.2;
}

.gradient-btn,
.outline-btn {
    display: inline-block;
    font-family: inherit;
    font-size: 1.6rem;
    font-weight: 600;
    padding: 1rem 2.6rem;
    border-radius: 3rem;
    letter-spacing: 0.1rem;
    white-space: nowrap;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out, background-size 0.4s ease, color 0.3s ease;
}

.gradient-btn {
    border: none;
    color: var(--bg-color);
    background-color: var(--main-color);
    background-image: var(--gradient);
    background-repeat: no-repeat;
    background-size: 0% 100%;
}

.gradient-btn:hover,
.gradient-btn:focus-visible {
    background-size: 100% 100%;
    transform: scale(1.05);
    box-shadow: 0 0.6rem 2rem rgba(240, 140, 174, 0.35);
}

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

.outline-btn:hover,
.outline-btn:focus-visible {
    background: var(--main-color);
    color: var(--bg-color);
    transform: scale(1.05);
}

.social-icons {
    display: flex;
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.social-icons a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 4.4rem;
    height: 4.4rem;
    font-size: 2.2rem;
    color: var(--main-color);
    border: 2px solid var(--main-color);
    border-radius: 50%;
    text-decoration: none;
    transition: 0.3s ease-in-out;
}

.social-icons a:hover,
.social-icons a:focus-visible {
    color: var(--bg-color);
    background: var(--main-color);
    transform: translateY(-5px);
    box-shadow: 0 0 2rem rgba(240, 140, 174, 0.5);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.tag-list li {
    padding: 0.5rem 1.4rem;
    font-size: 1.4rem;
    border-radius: 2rem;
    background: var(--bg-color);
    border: 1px solid rgba(201, 167, 245, 0.4);
    color: var(--accent-2);
}

.tag-list.small {
    justify-content: center;
}

.tag-list.small li {
    font-size: 1.3rem;
    padding: 0.3rem 1.1rem;
}

/* Scroll reveal (class added by JavaScript) */
.reveal {
    opacity: 0;
    transform: translateY(4rem);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: none;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    height: var(--header-height);
    padding: 0 clamp(1.6rem, 8%, 9rem);
    background: var(--header-bg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    transition: box-shadow 0.3s ease;
}

.header.sticky {
    box-shadow: 0 0.4rem 2rem rgba(0, 0, 0, 0.4);
}

.logo {
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--text-color);
    text-decoration: none;
    transition: transform 0.3s ease;
}

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

.navbar {
    display: flex;
    gap: 0.4rem;
}

.navbar a {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-color);
    text-decoration: none;
    padding: 0.6rem 1.4rem;
    border-radius: 2rem;
    transition: color 0.3s ease-in-out, background 0.3s ease-in-out;
}

.navbar a:hover,
.navbar a:focus-visible,
.navbar a.active {
    color: var(--bg-color);
    background: var(--gradient);
}

.menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 3.4rem;
    color: var(--main-color);
    cursor: pointer;
}

/* ===== HOME ===== */
.home-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: clamp(3rem, 8vw, 10rem);
    min-height: calc(100vh - var(--header-height));
}

.home-content {
    max-width: 60rem;
}

.eyebrow {
    font-size: 2rem;
    color: var(--muted-color);
    font-weight: 500;
}

.home-content h1 {
    font-size: clamp(4rem, 7vw, 7rem);
    font-weight: 700;
    line-height: 1.15;
}

.home-role {
    font-size: clamp(2.2rem, 3.5vw, 3.4rem);
    margin: 0.8rem 0 1.6rem;
}

.home-content > p:not(.eyebrow) {
    font-size: 1.7rem;
    color: var(--muted-color);
}

.buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 3rem;
}

.home-img {
    flex-shrink: 0;
    width: 34rem;
    aspect-ratio: 1;
    border-radius: 50%;
    overflow: hidden;
    border: 0.5rem solid var(--main-color);
    box-shadow: 0 0 2.5rem rgba(240, 140, 174, 0.35);
    transition: box-shadow 0.4s ease-in-out;
    animation: float 5s ease-in-out infinite;
}

.home-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.home-img:hover {
    box-shadow: 0 0 2.5rem rgba(240, 140, 174, 0.35),
                0 0 5rem rgba(240, 140, 174, 0.25),
                0 0 8rem rgba(201, 167, 245, 0.2);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-1.5rem); }
}

/* ===== ABOUT ===== */
.about-section {
    display: flex;
    align-items: center;
    gap: 6rem;
    background-color: var(--surface-color);
}

.about-img {
    flex-shrink: 0;
    width: 30rem;
    aspect-ratio: 1;
    border-radius: 3rem;
    overflow: hidden;
    box-shadow: 0 0 25px var(--main-color);
    transition: box-shadow 0.4s ease-in-out;
}

.about-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-img:hover {
    box-shadow: 0 0 25px var(--main-color),
                0 0 50px var(--main-color),
                0 0 80px var(--accent-2);
}

.section-title {
    font-size: clamp(3.4rem, 6vw, 5.6rem);
    margin-bottom: 2rem;
}

.about-content p {
    font-size: 1.7rem;
    color: var(--muted-color);
    margin-bottom: 1.6rem;
}

.about-content .gradient-btn {
    margin-top: 1.4rem;
}

/* ===== SKILLS ===== */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(26rem, 1fr));
    gap: 2.5rem;
}

.skill-group {
    padding: 3rem;
    background: var(--surface-color);
    border: 1px solid rgba(240, 140, 174, 0.25);
    border-radius: 2rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.skill-group:hover {
    transform: translateY(-0.6rem);
    border-color: var(--main-color);
}

.skill-group h3 {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 2rem;
    margin-bottom: 2rem;
}

.skill-group h3 i {
    font-size: 2.8rem;
    color: var(--main-color);
}

.skill-list li {
    display: grid;
    gap: 0.6rem;
    margin-bottom: 1.6rem;
    font-size: 1.5rem;
}

.bar {
    height: 0.8rem;
    border-radius: 1rem;
    background: var(--bg-color);
    overflow: hidden;
}

.bar span {
    display: block;
    height: 100%;
    width: 0;
    border-radius: inherit;
    background: var(--gradient);
    transition: width 1.2s ease 0.3s;
}

.skills.visible .bar span {
    width: var(--level);
}

/* ===== EDUCATION ===== */
.education {
    background: var(--surface-color);
}

.timeline {
    position: relative;
    max-width: 80rem;
    margin: 0 auto;
    padding-left: 3rem;
    border-left: 3px solid var(--main-color);
}

.timeline-item {
    position: relative;
    padding: 2.4rem 3rem;
    margin-bottom: 3rem;
    background: var(--bg-color);
    border-radius: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -4.15rem;
    top: 3rem;
    width: 1.8rem;
    height: 1.8rem;
    border-radius: 50%;
    background: var(--main-color);
    box-shadow: 0 0 0 0.5rem var(--surface-color);
}

.timeline-date {
    display: inline-block;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--bg-color);
    background: var(--gradient);
    padding: 0.3rem 1.2rem;
    border-radius: 2rem;
}

.timeline-item h3 {
    font-size: 2rem;
    margin-top: 1rem;
}

.timeline-place {
    color: var(--accent-2);
    font-weight: 500;
    margin-bottom: 0.8rem;
}

.timeline-item p:last-child {
    color: var(--muted-color);
}

/* ===== SERVICES ===== */
.service-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(24rem, 1fr));
    gap: 2.5rem;
}

.service-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
    padding: 4rem 2.5rem;
    background-color: var(--main-color);
    color: var(--bg-color);
    border: 3px solid transparent;
    border-radius: 3rem;
    transition: 0.4s ease-in-out;
}

.service-box:hover {
    background-color: var(--surface-color);
    border-color: var(--main-color);
    color: var(--main-color);
    transform: scale(1.03);
}

.service-box i {
    font-size: 5.6rem;
}

.service-box h3 {
    font-size: 2.2rem;
}

.service-box p {
    font-size: 1.5rem;
}

/* ===== PROJECTS ===== */
.projects {
    background-color: var(--surface-color);
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 4rem;
}

.filter-btn {
    font-family: inherit;
    font-size: 1.5rem;
    font-weight: 500;
    padding: 0.7rem 2rem;
    border-radius: 2rem;
    border: 1px solid var(--main-color);
    background: transparent;
    color: var(--text-color);
    cursor: pointer;
    transition: 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient);
    color: var(--bg-color);
    border-color: transparent;
}

.projects-box {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(28rem, 1fr));
    gap: 2.5rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
    padding: 4rem 2.5rem;
    background-color: var(--bg-color);
    border: 2px solid var(--main-color);
    border-radius: 2rem;
    transition: 0.4s ease-in-out;
}

.project-card:hover {
    box-shadow: 0 0 25px rgba(240, 140, 174, 0.6),
                0 0 60px rgba(201, 167, 245, 0.3);
    transform: translateY(-0.6rem);
}

.project-card.hidden {
    display: none;
}

.project-icon {
    font-size: 6rem;
    color: var(--main-color);
}

.project-card h3 {
    font-size: 2.2rem;
}

.project-card p {
    font-size: 1.5rem;
    color: var(--muted-color);
    flex-grow: 1;
}

/* ===== CONTACT ===== */
.contact-intro {
    text-align: center;
    color: var(--muted-color);
    max-width: 60rem;
    margin: -3rem auto 4rem;
}

.contact form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 80rem;
    margin: 0 auto;
}

.input-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

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

.field label {
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--muted-color);
}

.contact input,
.contact textarea {
    width: 100%;
    padding: 1.6rem 2rem;
    font-family: inherit;
    font-size: 1.6rem;
    color: var(--text-color);
    background-color: var(--surface-color);
    border: 2px solid transparent;
    border-radius: 1.4rem;
    resize: vertical;
    transition: border-color 0.3s ease;
}

.contact input:focus,
.contact textarea:focus {
    outline: none;
    border-color: var(--main-color);
}

.field.invalid input,
.field.invalid textarea {
    border-color: var(--error-color);
}

.error-msg {
    min-height: 1.8rem;
    font-size: 1.3rem;
    color: var(--error-color);
}

.contact button[type="submit"] {
    align-self: center;
}

.form-status {
    text-align: center;
    font-weight: 500;
}

.form-status.error { color: var(--error-color); }
.form-status.success { color: var(--success-color); }

/* ===== FOOTER ===== */
.footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.4rem;
    padding: 5rem 2rem 3rem;
    background-color: var(--surface-color);
    text-align: center;
}

.footer .social-icons {
    margin-top: 0;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem 2.4rem;
}

.footer-links a {
    font-size: 1.6rem;
    color: var(--text-color);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: 0.3s ease-in-out;
}

.footer-links a:hover {
    color: var(--main-color);
    border-bottom-color: var(--main-color);
}

.copyright {
    font-size: 1.4rem;
    color: var(--muted-color);
}

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

/* Tablet & small laptop */
@media (max-width: 1100px) {
    .menu-btn {
        display: block;
    }

    .header-btn {
        display: none;
    }

    .navbar {
        display: none;
        position: absolute;
        top: 100%;
        right: 0;
        width: min(32rem, 100%);
        flex-direction: column;
        gap: 0.6rem;
        padding: 2rem;
        background: var(--nav-bg); 
        border-left: 2px solid var(--main-color);
        border-bottom: 2px solid var(--main-color);
        border-bottom-left-radius: 2rem;
    }
    .theme-toggle {
    order: 2;
    margin-left: auto;
}

.menu-btn {
    order: 3;
}

    .navbar.active {
        display: flex;
    }

    .navbar a {
        font-size: 1.8rem;
        padding: 1rem 2rem;
    }
}

/* Tablet portrait */
@media (max-width: 900px) {
    .home-section {
        flex-direction: column-reverse;
        justify-content: center;
        text-align: center;
        padding-top: 4rem;
    }

    .home-content .social-icons,
    .buttons {
        justify-content: center;
    }

    .home-img {
        width: min(26rem, 70vw);
    }

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

    .about-img {
        width: min(26rem, 70vw);
    }
}

/* Mobile */
@media (max-width: 600px) {
    html {
        font-size: 56%;
    }

    section {
        padding: 6rem 1.6rem;
    }

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

    .timeline {
        padding-left: 2rem;
    }

    .timeline-item {
        padding: 2rem;
    }

    .timeline-item::before {
        left: -3.15rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        transition: none !important;
        animation: none !important;
    }
    .reveal { opacity: 1; transform: none; }
}