@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@100;200;300;400;500;600;700;800&display=swap');

/* =========================================
   Theme Variables
   ========================================= */
:root {
    --bg: #0a0a0a;
    --bg-soft: #161616;
    --bg-card: #1a1a1a;
    --text: #ffffff;
    --text-soft: #c0c0c0;
    --text-muted: #888888;
    --accent: #b74b4b;
    --accent-hover: #d65a5a;
    --accent-glow: rgba(183, 75, 75, 0.35);
    --border: rgba(255, 255, 255, 0.08);
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    --transition: 0.3s ease;
}

[data-theme="light"] {
    --bg: #f7f7f7;
    --bg-soft: #ffffff;
    --bg-card: #ffffff;
    --text: #1a1a1a;
    --text-soft: #444444;
    --text-muted: #777777;
    --accent: #b74b4b;
    --accent-hover: #9e3f3f;
    --accent-glow: rgba(183, 75, 75, 0.25);
    --border: rgba(0, 0, 0, 0.08);
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

/* =========================================
   Reset & Base
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    border: none;
    outline: none;
    font-family: 'Poppins', sans-serif;
}

html {
    font-size: 62.5%;
    scroll-behavior: smooth;
}

body {
    width: 100%;
    min-height: 100vh;
    overflow-x: hidden;
    background-color: var(--bg);
    color: var(--text);
    transition: background-color var(--transition), color var(--transition);
}

::selection {
    background-color: var(--accent);
    color: #fff;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-hover);
}

/* =========================================
   Header
   ========================================= */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.6rem 9%;
    background-color: rgba(10, 10, 10, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    transition: background-color var(--transition), border-color var(--transition);
}

[data-theme="light"] header {
    background-color: rgba(247, 247, 247, 0.8);
}

.logo {
    font-size: 2.6rem;
    color: var(--accent);
    font-weight: 800;
    cursor: pointer;
    transition: transform var(--transition);
}

.logo:hover {
    transform: scale(1.08);
}

nav {
    display: flex;
    align-items: center;
}

nav a {
    font-size: 1.6rem;
    color: var(--text);
    margin-left: 3.5rem;
    font-weight: 500;
    transition: color var(--transition);
    position: relative;
    padding: 0.4rem 0;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width var(--transition);
}

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

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: 2rem;
}

.icon-btn {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background-color: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 1.6rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.icon-btn:hover {
    background-color: var(--accent);
    color: #fff;
    border-color: var(--accent);
    transform: rotate(15deg);
}

.menu-toggle {
    display: none;
}

/* =========================================
   Sections (general)
   ========================================= */
section {
    min-height: 100vh;
    padding: 12rem 9% 6rem;
}

.section-title {
    font-size: 4.8rem;
    text-align: center;
    margin-bottom: 5rem;
    font-weight: 700;
}

.section-title span {
    color: var(--accent);
}

span {
    color: var(--accent);
}

/* =========================================
   Home / Hero
   ========================================= */
.home {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8rem;
    background-color: var(--bg);
}

.home .home-content h1 {
    font-size: 6rem;
    font-weight: 700;
    line-height: 1.3;
}

.home-content h3 {
    font-size: 4rem;
    margin-bottom: 1rem;
    font-weight: 700;
    min-height: 5.2rem;
}

.home-content p {
    font-size: 1.6rem;
    color: var(--text-soft);
    line-height: 1.7;
    max-width: 60rem;
}

.home-img {
    border-radius: 50%;
}

.home-img img {
    position: relative;
    width: 32vw;
    max-width: 42rem;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.5s ease;
}

.home-img img:hover {
    transform: scale(1.03);
}

/* Typing effect */
.typing-text .typed-word {
    color: var(--accent);
    font-weight: 700;
}

.typing-text .cursor {
    color: var(--accent);
    animation: blink 0.8s infinite;
    font-weight: 400;
    margin-left: 2px;
}

@keyframes blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* Social icons */
.social-icons {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
    margin: 2.5rem 0;
}

.social-icons a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 4.5rem;
    height: 4.5rem;
    background-color: transparent;
    border: 0.2rem solid var(--accent);
    font-size: 2rem;
    border-radius: 50%;
    transition: all var(--transition);
    color: var(--accent);
}

.social-icons a:hover {
    color: #fff;
    transform: scale(1.15) translateY(-4px);
    background-color: var(--accent);
    box-shadow: 0 0 25px var(--accent);
}

/* CTA buttons */
.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.btn {
    display: inline-block;
    padding: 1.2rem 2.8rem;
    background-color: var(--accent);
    border-radius: 4rem;
    font-size: 1.5rem;
    color: #fff;
    letter-spacing: 0.15rem;
    font-weight: 600;
    border: 2px solid var(--accent);
    transition: all var(--transition);
    cursor: pointer;
}

.btn:hover {
    transform: scale(1.04);
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    box-shadow: 0 0 25px var(--accent);
}

.btn-ghost {
    background-color: transparent;
    color: var(--accent);
}

.btn-ghost:hover {
    background-color: var(--accent);
    color: #fff;
}

/* =========================================
   About
   ========================================= */
.about {
    background-color: var(--bg-soft);
}

.about-content {
    max-width: 90rem;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.7rem;
    line-height: 1.9;
    color: var(--text-soft);
    margin-bottom: 1.8rem;
}

/* =========================================
   Services
   ========================================= */
.services {
    background-color: var(--bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(28rem, 1fr));
    gap: 3rem;
    max-width: 120rem;
    margin: 0 auto;
}

.service-card {
    background-color: var(--bg-card);
    padding: 3.5rem 2.8rem;
    border-radius: 1.6rem;
    border: 1px solid var(--border);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    transition: left 0.6s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 12px 40px var(--accent-glow);
}

.service-card:hover::before {
    left: 100%;
}

.service-icon {
    width: 6rem;
    height: 6rem;
    background-color: var(--accent-glow);
    color: var(--accent);
    border-radius: 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2.6rem;
    margin-bottom: 2rem;
}

.service-card h3 {
    font-size: 2.2rem;
    margin-bottom: 1.2rem;
    font-weight: 600;
}

.service-card p {
    font-size: 1.5rem;
    color: var(--text-soft);
    line-height: 1.7;
}

/* =========================================
   Skills
   ========================================= */
.skills {
    background-color: var(--bg-soft);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
    gap: 2rem;
    max-width: 100rem;
    margin: 0 auto;
}

.skill-item {
    background-color: var(--bg-card);
    padding: 2.5rem 1rem;
    border-radius: 1.2rem;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    transition: all var(--transition);
    cursor: default;
}

.skill-item i {
    font-size: 3.6rem;
    color: var(--accent);
    transition: transform var(--transition);
}

.skill-item span {
    color: var(--text);
    font-size: 1.4rem;
    font-weight: 500;
}

.skill-item:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 8px 25px var(--accent-glow);
}

.skill-item:hover i {
    transform: scale(1.15);
}

/* =========================================
   Contact
   ========================================= */
.contact {
    background-color: var(--bg);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 5rem;
    max-width: 110rem;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    justify-content: center;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1.8rem;
    background-color: var(--bg-card);
    padding: 2rem;
    border-radius: 1.2rem;
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.info-item:hover {
    border-color: var(--accent);
    transform: translateX(6px);
}

.info-item i {
    font-size: 2.4rem;
    color: var(--accent);
    width: 5rem;
    height: 5rem;
    background-color: var(--accent-glow);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.info-item h4 {
    font-size: 1.6rem;
    margin-bottom: 0.3rem;
    color: var(--text);
}

.info-item a {
    font-size: 1.4rem;
    color: var(--text-soft);
    transition: color var(--transition);
}

.info-item a:hover {
    color: var(--accent);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.6rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.6rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1.4rem 1.8rem;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 1rem;
    color: var(--text);
    font-size: 1.5rem;
    font-family: inherit;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.contact-form textarea {
    resize: vertical;
    min-height: 14rem;
}

.contact-form .btn {
    align-self: flex-start;
    margin-top: 0.5rem;
}

.form-status {
    font-size: 1.4rem;
    color: var(--text-soft);
    min-height: 2rem;
}

.form-status.error { color: #e57373; }
.form-status.success { color: #81c784; }

/* =========================================
   Footer
   ========================================= */
footer {
    background-color: var(--bg-soft);
    padding: 3rem 9%;
    text-align: center;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

footer p {
    font-size: 1.4rem;
    color: var(--text-soft);
}

footer .footer-tagline i {
    color: var(--accent);
}

footer a {
    color: var(--accent);
    transition: color var(--transition);
}

footer a:hover {
    color: var(--accent-hover);
}

/* =========================================
   Back to top
   ========================================= */
.back-to-top {
    position: fixed;
    bottom: 3rem;
    right: 3rem;
    width: 4.5rem;
    height: 4.5rem;
    background-color: var(--accent);
    color: #fff;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--accent-hover);
    transform: translateY(-4px);
}

/* =========================================
   Reveal animations
   ========================================= */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 1200px) {
    section {
        padding: 12rem 5% 6rem;
    }
    header {
        padding: 1.6rem 5%;
    }
    footer {
        padding: 3rem 5%;
    }
}

@media (max-width: 1000px) {
    .home {
        gap: 4rem;
    }
    .home .home-content h1 {
        font-size: 5rem;
    }
    .home-content h3 {
        font-size: 3.2rem;
    }
    nav a {
        margin-left: 2.5rem;
        font-size: 1.5rem;
    }
}

@media (max-width: 850px) {
    .menu-toggle {
        display: inline-flex;
    }

    nav {
        position: absolute;
        top: 100%;
        right: 0;
        width: min(80%, 30rem);
        flex-direction: column;
        align-items: flex-start;
        background-color: var(--bg-soft);
        border: 1px solid var(--border);
        border-top: none;
        border-bottom-left-radius: 1.5rem;
        padding: 2rem;
        gap: 0.5rem;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease, padding 0.3s ease;
    }

    nav.active {
        max-height: 50rem;
        padding: 2rem;
    }

    nav a {
        margin-left: 0;
        font-size: 1.7rem;
        width: 100%;
        padding: 1rem 0;
    }

    .home {
        flex-direction: column-reverse;
        text-align: center;
        padding-top: 14rem;
        gap: 3rem;
    }

    .home-content p {
        margin: 0 auto;
    }

    .social-icons,
    .hero-cta {
        justify-content: center;
    }

    .home-img img {
        width: 60vw;
        max-width: 30rem;
    }

    .home .home-content h1 {
        font-size: 4.4rem;
    }

    .section-title {
        font-size: 3.6rem;
        margin-bottom: 4rem;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 500px) {
    html {
        font-size: 55%;
    }
    section {
        padding: 11rem 4% 5rem;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .home .home-content h1 {
        font-size: 3.8rem;
    }
    .home-content h3 {
        font-size: 2.6rem;
    }
    .back-to-top {
        bottom: 2rem;
        right: 2rem;
        width: 4rem;
        height: 4rem;
    }
}