/* ========================================
   TARIK LAKSSIMI - Professional Website
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #1a1a2e;
    --color-secondary: #16213e;
    --color-accent: #c9a227;
    --color-accent-light: #d4b94e;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-white: #ffffff;
    --color-off-white: #f8f8f8;
    --color-border: #e5e5e5;
    --color-border-dark: #2a2a4a;

    /* Typography */
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-2xl: 8rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Container */
    --container-max: 1200px;
    --container-padding: 2rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.2;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: all var(--transition-medium);
}

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

.btn-primary:hover {
    background-color: var(--color-accent-light);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    border-color: var(--color-white);
    background-color: rgba(255, 255, 255, 0.1);
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: all var(--transition-medium);
}

.navbar.scrolled {
    background-color: rgba(26, 26, 46, 0.98);
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
    letter-spacing: 0.1em;
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    font-size: 0.8125rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width var(--transition-medium);
}

.nav-link:hover {
    color: var(--color-white);
}

.nav-link:hover::after {
    width: 100%;
}

/* Language Selector */
.lang-selector {
    display: flex;
    gap: 0.25rem;
    margin-left: 1rem;
}

.lang-btn {
    background: none;
    border: 1px solid transparent;
    cursor: pointer;
    padding: 0.35rem 0.5rem;
    border-radius: 4px;
    transition: all var(--transition-fast);
    font-size: 1.25rem;
    line-height: 1;
    opacity: 0.5;
}

.lang-btn:hover {
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.1);
}

.lang-btn.active {
    opacity: 1;
    border-color: var(--color-accent);
    background-color: rgba(201, 162, 39, 0.15);
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    transition: all var(--transition-fast);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(201, 162, 39, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(201, 162, 39, 0.05) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    margin-bottom: var(--spacing-sm);
}

.hero-role {
    font-size: 1.125rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-functions {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 1rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

.hero-functions .separator {
    color: var(--color-accent);
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* ========================================
   TAGLINE SECTION
   ======================================== */
.tagline {
    background-color: var(--color-primary);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border-dark);
}

.tagline-text {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-style: italic;
    font-weight: 400;
    color: var(--color-white);
    text-align: center;
    letter-spacing: 0.02em;
}

/* ========================================
   SECTIONS
   ======================================== */
.section {
    padding: var(--spacing-2xl) 0;
}

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

.section-number {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--color-primary);
}

/* ========================================
   PROFIL SECTION
   ======================================== */
.profil {
    background-color: var(--color-off-white);
}

.profil-content {
    display: grid;
    grid-template-columns: 280px 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.profil-photo {
    position: relative;
}

.profil-photo img {
    width: 100%;
    height: auto;
    aspect-ratio: 3/4;
    object-fit: cover;
    object-position: top center;
    filter: grayscale(20%);
    transition: filter var(--transition-medium);
}

.profil-photo:hover img {
    filter: grayscale(0%);
}

.profil-photo::after {
    content: '';
    position: absolute;
    bottom: -10px;
    right: -10px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-accent);
    z-index: -1;
}

.profil-text {
    max-width: 700px;
}

.profil-intro {
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.profil-text p {
    color: var(--color-text-light);
}

.profil-text em {
    font-style: italic;
    color: var(--color-text);
}

.profil-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.highlight {
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border-left: 3px solid var(--color-accent);
}

.highlight-number {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(1rem, 4vw, 2.5rem);
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-xs);
}

.highlight-text {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   DOMAINES SECTION
   ======================================== */
.domaines {
    background-color: var(--color-white);
}

.domaines-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.domaine-card {
    padding: var(--spacing-lg);
    background-color: var(--color-off-white);
    border: 1px solid var(--color-border);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.domaine-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background-color: var(--color-accent);
    transition: height var(--transition-medium);
}

.domaine-card:hover {
    background-color: var(--color-white);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.domaine-card:hover::before {
    height: 100%;
}

.domaine-number {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.domaine-title {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.domaine-description {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.domaine-note,
.domaine-languages {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-style: italic;
}

.domaine-languages strong {
    font-style: normal;
    color: var(--color-text-light);
}

/* ========================================
   PUBLICATIONS SECTION
   ======================================== */
.publications {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.publications .section-title {
    color: var(--color-white);
}

.publications-list {
    max-width: 800px;
}

.publication-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border-dark);
    transition: all var(--transition-fast);
}

.publication-item:hover {
    padding-left: var(--spacing-sm);
}

.publication-year {
    flex-shrink: 0;
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-accent);
    width: 60px;
}

.publication-content {
    flex: 1;
}

.publication-title {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-white);
    margin-bottom: 0.25rem;
}

.publication-source {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Publications Categories */
.publications-category {
    margin-bottom: var(--spacing-xl);
}

.publications-category:last-child {
    margin-bottom: 0;
}

.category-title {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--color-border-dark);
}

.publication-book .publication-title {
    font-size: 1.25rem;
}

.publication-book .publication-source {
    font-style: italic;
}

.conferences-list .publication-source {
    font-style: normal;
    color: rgba(255, 255, 255, 0.5);
}

.publication-item:last-child {
    border-bottom: none;
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact {
    background-color: var(--color-off-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact-content-simple {
    display: block;
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-content-simple .contact-details {
    justify-content: center;
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.contact-content-simple .contact-item {
    flex: 1;
    min-width: 250px;
}

.contact-intro {
    font-size: 1.125rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-item {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.contact-item:hover {
    border-color: var(--color-accent);
}

.contact-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.contact-value {
    font-size: 1.125rem;
    color: var(--color-primary);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 1rem;
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--color-text);
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    align-self: flex-start;
    margin-top: var(--spacing-sm);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-dark);
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    display: block;
    margin-bottom: 0.5rem;
}

.footer-tagline {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

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

.footer-links a {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.4);
}

.footer-legal {
    font-style: italic;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
    .profil-content {
        grid-template-columns: 200px 1fr;
        gap: var(--spacing-lg);
    }

    .profil-photo {
        grid-row: span 2;
    }

    .profil-highlights {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .highlight {
        flex: 1;
        min-width: 200px;
    }

    .domaines-grid {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1.5rem;
    }

    .nav-toggle {
        display: flex;
        position: relative;
        z-index: 1002;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--color-primary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transition: right var(--transition-medium);
        z-index: 1000;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        font-size: 1.25rem;
    }

    .lang-selector {
        position: fixed;
        top: 1.25rem;
        right: 5rem;
        margin-left: 0;
        z-index: 1003;
        background-color: rgba(26, 26, 46, 0.95);
        padding: 0.35rem;
        border-radius: 8px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    }

    .lang-btn {
        font-size: 1.1rem;
        padding: 0.3rem 0.4rem;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-functions {
        flex-direction: column;
        gap: 0.5rem;
    }

    .hero-functions .separator {
        display: none;
    }

    .section {
        padding: var(--spacing-xl) 0;
    }

    .profil-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .profil-photo {
        max-width: 250px;
        margin: 0 auto var(--spacing-md);
    }

    .profil-photo::after {
        display: none;
    }

    .profil-text {
        max-width: none;
    }

    .profil-highlights {
        flex-direction: column;
    }

    .highlight {
        min-width: auto;
    }

    .domaine-card {
        padding: var(--spacing-md);
    }

    .publication-item {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .publication-year {
        width: auto;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .footer-links {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }

    .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .contact-form .btn {
        align-self: stretch;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* Smooth reveal on scroll */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

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

/* ========================================
   COOKIE BANNER RGPD
   ======================================== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-md);
    z-index: 9999;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    transform: translateY(0);
    transition: transform var(--transition-medium);
}

.cookie-banner.hidden {
    transform: translateY(100%);
}

.cookie-content {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.cookie-content p {
    flex: 1;
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.6;
    min-width: 280px;
}

.cookie-content a {
    color: var(--color-accent);
    text-decoration: underline;
}

.cookie-content a:hover {
    color: var(--color-accent-light);
}

.cookie-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.cookie-btn {
    padding: 0.75rem 1.5rem;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cookie-btn-accept {
    background-color: var(--color-accent);
    color: var(--color-primary);
}

.cookie-btn-accept:hover {
    background-color: var(--color-accent-light);
}

.cookie-btn-refuse {
    background-color: transparent;
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.cookie-btn-refuse:hover {
    border-color: var(--color-white);
    background-color: rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }

    .cookie-content p {
        min-width: auto;
    }

    .cookie-buttons {
        width: 100%;
        justify-content: center;
    }
}

/* ========================================
   BACK TO TOP BUTTON
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--color-accent);
    color: var(--color-primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-medium);
    z-index: 999;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.back-to-top:hover {
    background-color: var(--color-accent-light);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

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

@media (max-width: 768px) {
    .back-to-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 45px;
        height: 45px;
    }
}