/**
 * KarDinaL_Solutions - Styles
 * Design moderne, premium, tech
 * Couleur d'accent : vert sauge
 */

/* ============================================================
   CSS Custom Properties (Variables)
   ============================================================ */
:root {
    /* Couleurs - Thème clair */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #e9ecef;
    --color-text-primary: #1a1a2e;
    --color-text-secondary: #4a4a5a;
    --color-text-muted: #6c757d;
    
    /* Vert sauge - Accent */
    --color-accent: #7c9a82;
    --color-accent-light: #9db4a2;
    --color-accent-dark: #5c7a62;
    --color-accent-rgb: 124, 154, 130;
    
    /* Surfaces et bordures */
    --color-border: #dee2e6;
    --color-card-bg: #ffffff;
    --color-card-shadow: rgba(0, 0, 0, 0.08);
    
    /* Typographie */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    
    /* Espacements */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Bordures */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Largeurs */
    --max-width: 1200px;
    --max-width-narrow: 800px;
    
    /* Header */
    --header-height: 70px;
}

/* Thème sombre */
[data-theme="dark"] {
    --color-bg-primary: #0d1117;
    --color-bg-secondary: #161b22;
    --color-bg-tertiary: #21262d;
    --color-text-primary: #f0f6fc;
    --color-text-secondary: #c9d1d9;
    --color-text-muted: #8b949e;
    --color-accent: #8fbc8f;
    --color-accent-light: #a8d4a8;
    --color-accent-dark: #6a9a6a;
    --color-accent-rgb: 143, 188, 143;
    --color-border: #30363d;
    --color-card-bg: #161b22;
    --color-card-shadow: rgba(0, 0, 0, 0.3);
}

/* ============================================================
   Reset et Base
   ============================================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ============================================================
   Typographie
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

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

a:hover,
a:focus {
    color: var(--color-accent-dark);
}

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

/* ============================================================
   Utilitaires
   ============================================================ */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================================
   Header & Navigation
   ============================================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(var(--color-bg-primary), 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

[data-theme="dark"] .header {
    background-color: rgba(13, 17, 23, 0.95);
}

[data-theme="light"] .header {
    background-color: rgba(255, 255, 255, 0.95);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.header__logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header__logo-icon {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav__link {
    position: relative;
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
    padding: var(--spacing-sm) 0;
    transition: color var(--transition-fast);
}

.nav__link:hover,
.nav__link:focus,
.nav__link.active {
    color: var(--color-accent);
}

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

.nav__link:hover::after,
.nav__link:focus::after,
.nav__link.active::after {
    width: 100%;
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.theme-toggle:hover,
.theme-toggle:focus {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.theme-toggle__icon {
    width: 20px;
    height: 20px;
}

.theme-toggle__icon--moon {
    display: none;
}

[data-theme="dark"] .theme-toggle__icon--sun {
    display: none;
}

[data-theme="dark"] .theme-toggle__icon--moon {
    display: block;
}

/* Mobile Menu */
.nav__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav__toggle-line {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(2) {
    opacity: 0;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 768px) {
    .nav__toggle {
        display: flex;
    }
    
    .nav__list {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-bg-primary);
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .nav__list.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav__link {
        display: block;
        padding: var(--spacing-md);
        text-align: center;
    }
}

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--header-height) + var(--spacing-3xl)) var(--spacing-lg) var(--spacing-3xl);
    background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(var(--color-accent-rgb), 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(var(--color-accent-rgb), 0.05) 0%, transparent 40%);
    pointer-events: none;
}

.hero__content {
    max-width: var(--max-width-narrow);
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: rgba(var(--color-accent-rgb), 0.1);
    border: 1px solid rgba(var(--color-accent-rgb), 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xl);
}

.hero__badge-icon {
    width: 16px;
    height: 16px;
}

.hero__title {
    margin-bottom: var(--spacing-lg);
}

.hero__title-accent {
    color: var(--color-accent);
}

.hero__description {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn--primary {
    background-color: var(--color-accent);
    color: #ffffff;
    border-color: var(--color-accent);
}

.btn--primary:hover,
.btn--primary:focus {
    background-color: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: #ffffff;
}

.btn--secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn--secondary:hover,
.btn--secondary:focus {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn__icon {
    width: 18px;
    height: 18px;
}

/* ============================================================
   Sections communes
   ============================================================ */
.section {
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.section--alt {
    background-color: var(--color-bg-secondary);
}

.section__header {
    text-align: center;
    max-width: var(--max-width-narrow);
    margin: 0 auto var(--spacing-2xl);
}

.section__title {
    margin-bottom: var(--spacing-md);
}

.section__subtitle {
    color: var(--color-text-muted);
    font-size: 1.0625rem;
}

/* ============================================================
   Services Grid
   ============================================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    max-width: var(--max-width);
    margin: 0 auto;
}

.service-card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--color-card-shadow);
    border-color: var(--color-accent);
}

@media (prefers-reduced-motion: reduce) {
    .service-card:hover {
        transform: none;
    }
}

.service-card__icon {
    width: 48px;
    height: 48px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.service-card__title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.service-card__description {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* ============================================================
   Technologies / Skills
   ============================================================ */
.tech-stack {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.tech-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.tech-badge:hover {
    background-color: rgba(var(--color-accent-rgb), 0.1);
    color: var(--color-accent);
}

.tech-badge__icon {
    width: 20px;
    height: 20px;
}

/* ============================================================
   Portfolio
   ============================================================ */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    max-width: var(--max-width);
    margin: 0 auto;
}

.portfolio-card {
    position: relative;
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--color-card-shadow);
}

@media (prefers-reduced-motion: reduce) {
    .portfolio-card:hover {
        transform: none;
    }
}

.portfolio-card__image {
    width: 100%;
    aspect-ratio: 16 / 10;
    background-color: var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-card__placeholder {
    width: 64px;
    height: 64px;
    color: var(--color-text-muted);
    opacity: 0.5;
}

.portfolio-card__content {
    padding: var(--spacing-lg);
}

.portfolio-card__title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.portfolio-card__description {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.portfolio-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.portfolio-card__tag {
    font-size: 0.75rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
}

/* GitHub CTA */
.github-cta {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(var(--color-accent-rgb), 0.05) 0%, rgba(var(--color-accent-rgb), 0.1) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(var(--color-accent-rgb), 0.2);
}

.github-cta__text {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

/* ============================================================
   About / Compétences additionnelles
   ============================================================ */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    max-width: var(--max-width);
    margin: 0 auto;
}

.about-card {
    text-align: center;
    padding: var(--spacing-xl);
}

.about-card__icon {
    width: 56px;
    height: 56px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.about-card__title {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.about-card__text {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

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

.contact__form {
    max-width: 500px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-family: inherit;
    font-size: 1rem;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(var(--color-accent-rgb), 0.1);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.contact__info {
    margin-top: var(--spacing-2xl);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-xl);
}

.contact__info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.contact__info-icon {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-2xl) var(--spacing-lg) var(--spacing-xl);
}

.footer__inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer__top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.footer__brand {
    max-width: 300px;
}

.footer__logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.footer__description {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

.footer__section-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.footer__links {
    list-style: none;
}

.footer__link {
    display: block;
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-fast);
}

.footer__link:hover,
.footer__link:focus {
    color: var(--color-accent);
}

.footer__social {
    display: flex;
    gap: var(--spacing-md);
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-text-muted);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.footer__social-link:hover,
.footer__social-link:focus {
    color: #ffffff;
    background-color: var(--color-accent);
}

.footer__social-icon {
    width: 20px;
    height: 20px;
}

.footer__bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.footer__copyright {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.footer__legal {
    display: flex;
    gap: var(--spacing-lg);
}

.footer__legal-link {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ============================================================
   Animations
   ============================================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
    .animate-fade-in-up {
        animation: none;
        opacity: 1;
    }
}

/* ============================================================
   Scroll animations (IntersectionObserver)
   ============================================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ============================================================
   Print Styles
   ============================================================ */
@media print {
    .header,
    .theme-toggle,
    .nav__toggle,
    .btn,
    .footer__social {
        display: none !important;
    }
    
    body {
        color: #000;
        background: #fff;
    }
    
    a {
        color: #000;
        text-decoration: underline;
    }
}

/* ============================================================
   Toast notification
   ============================================================ */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(120%);
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    min-width: 280px;
    max-width: 90vw;
}

.toast.toast--show {
    transform: translateX(-50%) translateY(0);
}

.toast--success {
    border-color: #22c55e;
}

.toast--error {
    border-color: #ef4444;
}

.toast__icon {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
}

.toast--success .toast__icon { color: #22c55e; }
.toast--error .toast__icon   { color: #ef4444; }

.toast__message {
    font-size: 0.9rem;
    font-weight: 500;
}

/* ============================================================
   Bouton retour en haut
   ============================================================ */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(1rem);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease, background 0.2s ease;
    z-index: 900;
}

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

.back-to-top:hover {
    background: var(--color-primary-dark, var(--color-primary));
    transform: translateY(-3px);
}

.back-to-top__icon {
    width: 1.25rem;
    height: 1.25rem;
}

/* ============================================================
   Typewriter cursor
   ============================================================ */
.typewriter-cursor {
    display: inline-block;
    width: 3px;
    height: 1em;
    background: var(--color-primary);
    margin-left: 2px;
    vertical-align: middle;
    animation: blink 0.8s step-end infinite;
}

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

/* ============================================================
   Section À propos
   ============================================================ */
.about {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

@media (max-width: 768px) {
    .about {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

.about__avatar-wrap {
    display: flex;
    justify-content: center;
}

.about__avatar {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: var(--color-surface-alt, var(--color-surface));
    border: 4px solid var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.about__avatar-initials {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -2px;
    user-select: none;
}

.about__content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.about__name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

.about__role {
    font-size: 1rem;
    color: var(--color-primary);
    font-weight: 500;
    margin: 0;
}

.about__bio {
    color: var(--color-text-muted);
    line-height: 1.8;
    font-size: 0.95rem;
}

.about__highlights {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.about__highlight {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 0.35rem 0.85rem;
}

.about__highlight-icon {
    width: 1rem;
    height: 1rem;
    color: var(--color-primary);
    flex-shrink: 0;
}

.about__actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}