:root {
    --bg-color: #0a0a0a;
    --text-primary: #ffffff;
    --text-secondary: #a1a1a1;
    --accent-color: #3b82f6;
    --card-bg: #161616;
    --transition-speed: 0.6s;
    --ease: cubic-bezier(0.23, 1, 0.32, 1);
}

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

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 3px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 1px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- Layout --- */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 8rem 0;
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-speed) var(--ease);
}

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

/* --- Navigation --- */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 600;
    font-size: 1.2rem;
    letter-spacing: -1px;
    text-decoration: none;
    color: var(--text-primary);
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* --- Hero Section --- */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -3px;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.hero-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    border-radius: 100px;
    font-size: 0.8rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
    font-weight: 600;
}

/* --- Skills Section --- */
.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.skill-badge {
    padding: 0.5rem 1.25rem;
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* --- Work/Projects --- */
.section-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

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

.project-grid a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.project-card {
    background: var(--card-bg);
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 2.5rem;
    transition: transform 0.4s var(--ease), border-color 0.4s ease;
    cursor: pointer;
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.project-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.project-link {
    font-size: 0.8rem;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: auto;
}

/* --- Experience/CV --- */
.cv-item {
    display: grid;
    grid-template-columns: 1fr 2fr;
    padding: 2.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.cv-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.cv-info h4 {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.cv-company {
    color: var(--accent-color);
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
}

.cv-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* --- Contact --- */
.contact-content {
    text-align: center;
}

/* uiverse - social login icons */
.social-login-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    -webkit-box-reflect: below 5px linear-gradient(transparent, #00000055);
}

.social-login-icons svg {
    width: 40px;
}

.social-icon-1,
.social-icon-1-1,
.social-icon-2,
.social-icon-2-2,
.social-icon-3,
.social-icon-3-3,
.social-icon-4,
.social-icon-4-4 {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50px;
    margin: 20px 0 0px 0;
}

.icon svg {
    fill: var(--text-primary);
    opacity: 0.3;
    transition: opacity 0.3s ease;
}

.socialcontainer {
    height: 80px;
    overflow: hidden;
}

.social-icon-1 {
    transition-duration: 0.4s;
    transition-timing-function: cubic-bezier(0.46, -0.78, 0.5, 1.56);
    background: linear-gradient(72.44deg,
            #1DA1F2 11.92%,
            #1A91DA 51.56%,
            #1580C1 85.69%);

}

.social-icon-1 svg,
.social-icon-2 svg,
.social-icon-3 svg,
.social-icon-4 svg {
    opacity: 0;
    transition-duration: 0.5s;
    transition-delay: 0.2s;
}

.social-icon-1-1 {
    transition-duration: 0.4s;
    background-color: rgb(0, 0, 0, 0);
}

.socialcontainer:hover .social-icon-1 {
    transform: translateY(-70px);
}

.socialcontainer:hover .social-icon-1 svg,
.socialcontainer:hover .social-icon-2 svg,
.socialcontainer:hover .social-icon-3 svg,
.socialcontainer:hover .social-icon-4 svg {
    opacity: 1;
}

.social-icon-2 {
    transition-duration: 0.4s;
    transition-timing-function: cubic-bezier(0.46, -0.78, 0.5, 1.56);
    background: linear-gradient(72.44deg,
            #d93025 11.92%,
            #ea4335 51.56%,
            #f28b82 85.69%);
}

.socialcontainer:hover .social-icon-2 {
    transform: translateY(-70px);
}

.social-icon-3 {
    transition-duration: 0.4s;
    transition-timing-function: cubic-bezier(0.46, -0.78, 0.5, 1.56);
    background: #316ff6;
}

.socialcontainer:hover .social-icon-3 {
    transform: translateY(-70px);
}

.social-icon-4 {
    transition-duration: 0.4s;
    transition-timing-function: cubic-bezier(0.46, -0.78, 0.5, 1.56);

    background: linear-gradient(180deg,
            rgba(129, 34, 144, 1) 0%,
            rgba(77, 34, 124, 1) 91%);
}

.socialcontainer:hover .social-icon-4 {
    transform: translateY(-70px);
}


.contact-btn {
    display: inline-block;
    margin-top: 2rem;
    font-size: clamp(1.2rem, 4vw, 2.5rem);
    color: var(--text-primary);
    text-decoration: none;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.contact-btn:hover {
    color: var(--accent-color);
    padding-left: 20px;
}

/* --- Footer --- */
footer {
    padding: 4rem 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-size: 0.8rem;
}

@media (max-width: 768px) {
    .cv-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .nav-links {
        display: flex;
    }

    .nav-links a {
        font-size: 0.6rem;
    }

}

/* flip card */

.flip-card {
  perspective: 1000px;
  padding: 0; /* 🔥 important: remove double padding */
}

/* inner wrapper */
.flip-inner {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 260px; /* match your card height */
  transition: transform 0.6s ease;
  transform-style: preserve-3d;
}

/* faces */
.flip-face {
  position: absolute;
  width: 100%;
  height: 100%;
  padding: 24px;
  border-radius: 14px;

  background: linear-gradient(145deg, #0f0f0f, #111);
  border: 1px solid rgba(255,255,255,0.05);

  backface-visibility: hidden;

  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* front */
.flip-front {
  z-index: 2;
}

/* back */
.flip-back {
  transform: rotateY(180deg);
}

/* flip trigger */
.flip-inner.flipped {
  transform: rotateY(180deg);
}

/* links styling */
.back-links a {
  display: block;
  margin-top: 8px;
  padding: 8px;
  text-align: center;

  border-radius: 6px;
  font-size: 0.8rem;

  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.05);

  color: #6aa9ff;
  text-decoration: none;
  transition: 0.2s;
}

.back-links a:hover {
  background: rgba(106,169,255,0.1);
  border: 1px solid rgba(106,169,255,0.4);
}