/* ===== VARIABLES CSS ===== */
:root {
    --bleu-principal: #1F63DE;
    --bleu-clair: #00B4E6;
    --violet: #6B2D7B;
    --orange: #FAAB08;
    --vert: #00A077;
    --blanc: #ffffff;
    --noir: #333333;
    --gris-clair: #f9f9f9;
    --gris-bordure: #ddd;
    --ombre: rgba(0, 0, 0, 0.1);
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: var(--noir);
    background-color: var(--blanc);
}

/* ===== NAVIGATION ===== */
.navbar {
    background-color: var(--blanc);
    box-shadow: 0 2px 10px var(--ombre);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo img {
    height: 60px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-menu li a {
    text-decoration: none;
    color: var(--noir);
    padding: 12px 18px;
    border-radius: 5px;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 15px;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    background-color: var(--bleu-principal);
    color: var(--blanc);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--noir);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===== HEADER BANNER ===== */
.header-banner {
    background: linear-gradient(135deg, var(--bleu-principal) 0%, var(--bleu-clair) 100%);
    color: var(--blanc);
    padding: 120px 20px 60px;
    text-align: center;
    margin-top: 90px;
}

.header-banner h1 {
    font-size: 2.8em;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.header-banner p {
    font-size: 1.3em;
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== SECTIONS ===== */
section {
    padding: 60px 20px;
}

.section-title {
    color: var(--orange);
    margin-top: 30px;
    margin-bottom: 30px;
    border-bottom: 3px solid var(--bleu-principal);
    display: inline-block;
    padding-bottom: 10px;
    font-size: 1.8em;
}

.section-subtitle {
    color: var(--bleu-principal);
    font-size: 1.3em;
    margin-bottom: 20px;
}

/* ===== CARTES ===== */
.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.card, .feature-card, .career-card, .sae-card, .competence-card {
    background-color: var(--blanc);
    border: none;
    box-shadow: 0 4px 15px var(--ombre);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
}

.card:hover, .feature-card:hover, .career-card:hover, .sae-card:hover, .competence-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.card-icon {
    font-size: 60px;
    color: var(--orange);
    margin-bottom: 15px;
    font-weight: 300;
    font-family: Arial, sans-serif;
    line-height: 1;
}

.card h3 {
    color: var(--bleu-principal);
    margin-bottom: 15px;
    font-size: 1.3em;
}

.card p {
    color: #666;
    line-height: 1.7;
}

/* ===== COULEURS DES COMPÉTENCES ===== */
.competence-card.bleu { border-top: 5px solid var(--bleu-principal); }
.competence-card.bleu-clair { border-top: 5px solid var(--bleu-clair); }
.competence-card.violet { border-top: 5px solid var(--violet); }
.competence-card.orange { border-top: 5px solid var(--orange); }
.competence-card.vert { border-top: 5px solid var(--vert); }

.competence-card.bleu .card-icon { color: var(--bleu-principal); }
.competence-card.bleu-clair .card-icon { color: var(--bleu-clair); }
.competence-card.violet .card-icon { color: var(--violet); }
.competence-card.orange .card-icon { color: var(--orange); }
.competence-card.vert .card-icon { color: var(--vert); }

/* ===== TABLEAUX ===== */
.table-container {
    overflow-x: auto;
    margin: 30px 0;
    border-radius: 10px;
    box-shadow: 0 4px 15px var(--ombre);
}

table {
    background-color: var(--gris-clair);
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

th {
    background-color: var(--bleu-principal);
    color: var(--blanc);
    text-align: center;
    padding: 15px 10px;
    font-weight: 600;
}

td {
    text-align: center;
    vertical-align: middle;
    padding: 12px 10px;
    border: 1px solid var(--gris-bordure);
}

tr:nth-child(even) {
    background-color: #f0f0f0;
}

tr:hover {
    background-color: #e8f4ff;
}

/* ===== BOUTONS ===== */
.btn-orange, .btn-primary {
    background-color: var(--orange);
    border: none;
    color: var(--blanc);
    padding: 12px 30px;
    font-size: 16px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    font-weight: 600;
}

.btn-orange:hover, .btn-primary:hover {
    background-color: #C98907;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(250, 171, 8, 0.4);
}

.btn-bleu {
    background-color: var(--bleu-principal);
    border: none;
    color: var(--blanc);
    padding: 12px 30px;
    font-size: 16px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    font-weight: 600;
}

.btn-bleu:hover {
    background-color: #1550b8;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(31, 99, 222, 0.4);
}

/* ===== GLOSSAIRE ===== */
.glossaire-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
}

.glossaire-item {
    background-color: var(--blanc);
    border-left: 4px solid var(--bleu-principal);
    padding: 20px;
    border-radius: 0 10px 10px 0;
    box-shadow: 0 2px 10px var(--ombre);
    transition: all 0.3s ease;
}

.glossaire-item:hover {
    border-left-color: var(--orange);
    transform: translateX(5px);
}

.glossaire-item dt {
    font-weight: 700;
    color: var(--bleu-principal);
    font-size: 1.1em;
    margin-bottom: 8px;
}

.glossaire-item dd {
    color: #666;
    line-height: 1.6;
}

/* ===== EMPLOI DU TEMPS ===== */
.semaine-type {
    background: linear-gradient(135deg, var(--gris-clair) 0%, #e8f4ff 100%);
    padding: 30px;
    border-radius: 15px;
    margin: 30px 0;
}

.jour {
    background-color: var(--blanc);
    margin: 15px 0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px var(--ombre);
}

.jour-header {
    background-color: var(--bleu-principal);
    color: var(--blanc);
    padding: 12px 20px;
    font-weight: 600;
}

.jour-content {
    padding: 15px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.cours-item {
    background-color: var(--gris-clair);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9em;
    border-left: 3px solid var(--orange);
}

/* ===== SAE ===== */
.sae-card {
    text-align: left;
}

.sae-card h3 {
    color: var(--bleu-principal);
    margin-bottom: 10px;
}

.sae-card .semestre {
    display: inline-block;
    background-color: var(--orange);
    color: var(--blanc);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85em;
    margin-bottom: 15px;
}

.sae-card .description {
    color: #666;
    margin-bottom: 15px;
}

.sae-card .technologies {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sae-card .tech-tag {
    background-color: #e8f4ff;
    color: var(--bleu-principal);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.85em;
}

/* ===== DÉBOUCHÉS ===== */
.career-card {
    position: relative;
    overflow: hidden;
}

.career-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--bleu-principal), var(--bleu-clair), var(--violet), var(--orange), var(--vert));
}

.career-card .salaire {
    color: var(--vert);
    font-weight: 600;
    margin-top: 15px;
}

/* ===== FOOTER ===== */
footer {
    background-color: var(--noir);
    color: var(--blanc);
    padding: 40px 20px;
    margin-top: 60px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-section h4 {
    color: var(--orange);
    margin-bottom: 20px;
    font-size: 1.2em;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: var(--blanc);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--orange);
}

.footer-bottom {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #555;
}

.footer-logo {
    height: 40px;
    margin-bottom: 15px;
}

/* ===== FEATURES (ACCUEIL) ===== */
.features {
    background-color: var(--gris-clair);
}

.features .cards-container {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.feature-card .number {
    font-size: 2.5em;
    font-weight: 700;
    color: var(--bleu-principal);
}

.feature-card .label {
    color: #666;
    font-size: 1.1em;
}

/* ===== INFOS PARCOURS ===== */
.parcours-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin: 40px 0;
}

.parcours-info .text-content h3 {
    color: var(--bleu-principal);
    margin-bottom: 15px;
}

.parcours-info .text-content p {
    color: #666;
    line-height: 1.8;
}

.parcours-info .image-content {
    background: linear-gradient(135deg, var(--bleu-principal), var(--bleu-clair));
    border-radius: 15px;
    padding: 40px;
    color: var(--blanc);
    text-align: center;
}

/* ===== LISTE À PUCES ===== */
.custom-list {
    list-style: none;
    padding: 0;
}

.custom-list li {
    padding: 10px 0 10px 30px;
    position: relative;
}

.custom-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--vert);
    font-weight: bold;
}

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

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

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .parcours-info {
        grid-template-columns: 1fr;
    }

    .header-banner h1 {
        font-size: 2.2em;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 90px;
        left: 0;
        width: 100%;
        background-color: var(--blanc);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 4px 10px var(--ombre);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .header-banner {
        padding: 100px 15px 40px;
    }

    .header-banner h1 {
        font-size: 1.8em;
    }

    .header-banner p {
        font-size: 1em;
    }

    .section-title {
        font-size: 1.4em;
    }

    .cards-container {
        grid-template-columns: 1fr;
    }

    section {
        padding: 40px 15px;
    }

    .glossaire-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .btn-orange, .btn-primary, .btn-bleu {
        padding: 10px 20px;
        font-size: 14px;
    }

    .card, .feature-card, .career-card, .sae-card, .competence-card {
        padding: 20px;
    }
}