/* ─── Google Fonts ─── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --bg-body: #050505;
    --bg-card: #0f1014;
    --bg-card-hover: #16171c;
    --text-primary: #eeeeee;
    --text-secondary: #888888;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --sidebar-width: 250px;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --card-radius: 12px;
    --transition: 0.2s ease;
    --border-subtle: rgba(255, 255, 255, 0.06);

    --bg-overlay-light: rgba(255, 255, 255, 0.03);
    --bg-overlay-medium: rgba(255, 255, 255, 0.05);

    --banner-bg: rgba(15, 16, 20, 0.95);
    --avatar-bg: #222;
    --avatar-border: rgba(255, 255, 255, 0.08);
}



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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    font-family: var(--font-family);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ─── Accessibility: focus outlines ─── */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ─── Selection color ─── */
::selection {
    background-color: rgba(59, 130, 246, 0.3);
    color: var(--text-primary);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
}

/* ─── Layout ─── */
.container {
    display: flex;
    min-height: 100vh;
}

/* ─── Sidebar ─── */
.sidebar {
    width: var(--sidebar-width);
    padding: 2.5rem 1.75rem;
    position: fixed;
    height: 100vh;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-subtle);
    overflow-y: auto;
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE/Edge */
}

.sidebar::-webkit-scrollbar {
    display: none;
    /* Chrome/Safari */
}

.sidebar-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
    flex-wrap: nowrap;
}

.profile-section {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.avatar {
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    border-radius: 50%;
    background-color: var(--avatar-bg);
    border: 2px solid var(--avatar-border);
    overflow: hidden;
    flex-shrink: 0;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 50%;
}

.profile-name {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.1rem;
    letter-spacing: -0.01em;
}

.profile-sub {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

/* ─── Top Banner ─── */
.top-banner {
    background-color: var(--banner-bg);
    color: var(--text-secondary);
    text-align: center;
    padding: 0.55rem 1rem;
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    position: relative;
    z-index: 100;
    border-bottom: 1px solid var(--accent);
}

.top-banner a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition);
}

.top-banner a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* Hamburger button — hidden on desktop */
.btn-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    width: 36px;
    height: 36px;
}

.btn-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--text-secondary);
    border-radius: 2px;
    transition: background-color var(--transition);
}

.btn-hamburger:hover span {
    background-color: var(--text-primary);
}

/* Hamburger → X animation */
.btn-hamburger.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.btn-hamburger.is-active span:nth-child(2) {
    opacity: 0;
}

.btn-hamburger.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.btn-hamburger span {
    transition: transform 0.25s ease, opacity 0.2s ease, background-color var(--transition);
}

/* ─── Navigation ─── */
#nav-menu {
    flex: 1;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition), transform var(--transition), background-color var(--transition);
    display: block;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    position: relative;
}

.nav-links a:hover {
    color: var(--text-primary);
    transform: translateX(3px);
    background-color: var(--bg-overlay-light);
}

.nav-links a.active {
    color: var(--text-primary);
    background-color: var(--bg-overlay-medium);
    font-weight: 600;
}

.nav-links a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background-color: var(--accent);
    border-radius: 0 2px 2px 0;
}

/* ─── CV Button ─── */
.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--accent);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--card-radius);
    margin-top: auto;
    margin-bottom: 1.25rem;
    font-size: 0.85rem;
    font-weight: 600;
    transition: background-color var(--transition), transform var(--transition);
    width: fit-content;
    cursor: pointer;
}

.btn-download:hover {
    background-color: var(--accent-hover);
    color: white;
    transform: translateY(-1px);
}



/* ─── Footer ─── */
footer {
    font-size: 0.72rem;
    color: #444;
}

/* ─── Main Content ─── */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 3.5rem 4rem;
    max-width: 920px;
}

.section-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

/* ─── Cards ─── */
.writeup-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.writeup-card {
    background-color: var(--bg-card);
    padding: 1.25rem 1.5rem;
    border-radius: var(--card-radius);
    transition: transform var(--transition), background-color var(--transition), border-color var(--transition);
    cursor: default;
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: 1.25rem;
    position: relative;

    /* Fade-in animation */
    opacity: 0;
    animation: fadeInUp 0.4s ease forwards;
}

.writeup-card[role="link"],
.writeup-card[onclick],
.writeup-card[href] {
    cursor: pointer;
}

.writeup-card:nth-child(1) {
    animation-delay: 0.05s;
}

.writeup-card:nth-child(2) {
    animation-delay: 0.1s;
}

.writeup-card:nth-child(3) {
    animation-delay: 0.15s;
}

.writeup-card:nth-child(4) {
    animation-delay: 0.2s;
}

.writeup-card:nth-child(5) {
    animation-delay: 0.25s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

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

/* Chevron arrow on the right */
.writeup-card[role="link"]::after,
.writeup-card[onclick]::after,
.writeup-card[href]::after {
    content: '→';
    position: absolute;
    right: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    opacity: 0;
    transform: translateX(-4px);
    transition: opacity var(--transition), transform var(--transition);
}

.writeup-card[role="link"]:hover,
.writeup-card[onclick]:hover,
.writeup-card[href]:hover {
    background-color: var(--bg-card-hover);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.1);
}

.writeup-card[role="link"]:hover::after,
.writeup-card[onclick]:hover::after,
.writeup-card[href]:hover::after {
    opacity: 1;
    transform: translateX(0);
}

/* Icon background circle for contact cards */
.card-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    color: var(--text-secondary);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-overlay-light);
    border-radius: 10px;
    transition: background-color var(--transition), color var(--transition);
}

.writeup-card[role="link"]:hover .card-icon,
.writeup-card[onclick]:hover .card-icon,
.writeup-card[href]:hover .card-icon {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent);
}

.card-content {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.card-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ─── Article Back Link ─── */
.article-back {
    margin-bottom: 1.5rem;
}

.article-back a {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    transition: color var(--transition);
}

.article-back a:hover {
    color: var(--accent);
}

/* ─── Article Meta ─── */
.article-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-subtle);
}

/* ─── About ─── */
.about-text {
    max-width: 580px;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.85;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* First paragraph emphasis */
.about-text p:first-child {
    color: var(--text-primary);
    font-size: 1.05rem;
    font-weight: 500;
    line-height: 1.7;
}

/* Skill tags */
.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.7rem;
    background-color: var(--bg-overlay-light);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 500;
    transition: border-color var(--transition), color var(--transition);
}

.skill-tag:hover {
    border-color: rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
}

/* Section subtitle */
.section-subtitle {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

/* Competence groups (portfolio) */
.competence-group {
    margin-bottom: 1.5rem;
    padding: 1rem 1.25rem;
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--card-radius);
}

.competence-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.competence-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.competence-group .writeup-list {
    margin-top: 0.5rem;
}

/* "Voir les AC associés" button */
.ac-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: #fff;
    padding: 0.5rem 1rem;
    background-color: var(--accent);
    border: none;
    border-radius: 8px;
    margin-bottom: 0.75rem;
    transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.ac-link:hover {
    background-color: #2563eb;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
    color: #fff;
}

/* AC (Apprentissage Critique) tags */
.ac-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
}

.ac-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.6rem;
    background-color: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent);
    cursor: help;
    transition: background-color var(--transition), border-color var(--transition), transform var(--transition);
    position: relative;
}

.ac-tag:hover {
    background-color: rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.4);
    transform: translateY(-1px);
}

.ac-projects-title {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-subtle);
}

/* Status badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.status-progress {
    background-color: rgba(59, 130, 246, 0.12);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.status-success {
    background-color: rgba(34, 197, 94, 0.12);
    color: #4ade80;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.status-pending {
    background-color: rgba(251, 191, 36, 0.12);
    color: #fbbf24;
    border: 1px solid rgba(251, 191, 36, 0.2);
}

.card-desc-flex {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 0.35rem;
}

.cert-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem;
    background-color: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition);
    text-decoration: none;
}

.cert-link:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

/* ─── Contact intro ─── */
.contact-intro {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

/* ─── TryHackMe profile card ─── */
.profile-embed {
    margin-top: 2rem;
}

.profile-embed-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.profile-embed-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--card-radius);
    padding: 1.25rem;
    overflow: hidden;
}

.profile-embed-card iframe {
    border: none;
    width: 100%;
    height: 260px;
    border-radius: 8px;
}

/* ────────────────────────────────────────────
   MOBILE — breakpoint 768px
──────────────────────────────────────────── */
@media (max-width: 768px) {

    /* Stack layout vertically */
    .container {
        flex-direction: column;
    }

    /* Sidebar → top bar */
    .sidebar {
        position: relative;
        width: 100%;
        height: auto;
        padding: 1rem 1.25rem 0;
        border-right: none;
        border-bottom: 1px solid var(--border-subtle);
        overflow: visible;
        flex-shrink: 0;
    }

    .sidebar-top {
        margin-bottom: 0;
    }

    /* Show hamburger on mobile */
    .btn-hamburger {
        display: flex;
    }

    /* Nav hidden by default on mobile */
    #nav-menu {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease, padding 0.35s ease;
        padding: 0;
        flex: none;
    }

    #nav-menu.nav-open {
        max-height: 300px;
        padding: 0.75rem 0 0.25rem;
    }

    .nav-links {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.4rem 0.5rem;
    }

    .nav-links a {
        padding: 0.4rem 0.75rem;
        font-size: 0.85rem;
    }

    .nav-links a:hover {
        transform: none;
    }

    .nav-links a.active::before {
        display: none;
    }

    /* CV button & footer hidden when menu is closed */
    .btn-download,
    footer {
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        margin: 0;
        padding: 0;
        transition: max-height 0.3s ease, opacity 0.3s ease, margin 0.3s ease, padding 0.3s ease;
    }

    /* Show CV button & footer when nav is open */
    #nav-menu.nav-open~.btn-download {
        max-height: 60px;
        opacity: 1;
        margin-top: 0.75rem;
        margin-bottom: 0.5rem;
        padding: 0.5rem 1rem;
    }

    #nav-menu.nav-open~footer {
        max-height: 40px;
        opacity: 1;
        padding: 0.25rem 0 0.75rem;
    }



    /* Main content */
    .main-content {
        margin-left: 0;
        padding: 2rem 1.25rem;
        max-width: 100%;
        width: 100%;
    }

    .section-title {
        font-size: 1.2rem;
        margin-bottom: 1.25rem;
    }

    .writeup-card {
        padding: 1rem 1.25rem;
    }

    .writeup-card::after {
        right: 1rem;
    }

    /* About page adjustments */
    .about-text {
        max-width: 100%;
    }

    /* Contact embed */
    .profile-embed-card iframe {
        height: 200px;
    }
}

/* Extra small */
@media (max-width: 420px) {
    .profile-name {
        font-size: 0.9rem;
    }

    .profile-sub {
        font-size: 0.72rem;
    }

    .main-content {
        padding: 1.5rem 1rem;
    }



    .card-title {
        font-size: 0.88rem;
    }

    .card-desc {
        font-size: 0.78rem;
    }
}