/* ==========================================================================
   ASTRÉE RH - IDENTITY & STYLING (PREMIUM CABINET)
   ========================================================================== */

:root {
    --primary: #2B1E17;       /* Terre de Sienne brûlée sombre / Brun chaleureux profond */
    --secondary: #3A2A20;     /* Brun intermédiaire chaleureux */
    --accent: #C5A880;        /* Bronze / Or brossé noble */
    --accent-light: #F1ECE4;  /* Or très dilué pour fonds et surbrillances */
    --bg-light: #F8FAFC;      /* Blanc Albâtre / Gris perle doux */
    --text-dark: #2B1E17;     /* Texte principal adapté au ton chaud */
    --text-muted: #5C524C;    /* Texte secondaire adouci */
    --border-color: #E5E7EB;  /* Bordures fines */
    --font-serif: 'Cormorant Garamond', 'Playfair Display', 'Georgia', serif;
    --font-sans: 'Inter', 'Helvetica Neue', 'Segoe UI', sans-serif;
}

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

body {
    font-family: var(--font-sans);
    color: var(--text-dark);
    background-color: #FFFFFF;
    line-height: 1.75;
    font-size: 11pt;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.3;
    color: var(--primary);
}

h1 { font-size: 26pt; margin-bottom: 20px; }
h2 { font-size: 18pt; margin-bottom: 25px; position: relative; padding-bottom: 10px; }
h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--accent);
}
h3 { font-size: 14pt; margin-bottom: 15px; color: var(--secondary); }
p { margin-bottom: 20px; color: var(--text-muted); text-align: justify; }
strong { color: var(--primary); }

/* Navigation */
nav {
    background-color: var(--primary);
    padding: 15px 40px;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
nav .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-serif);
    font-size: 16pt;
    font-weight: 700;
    color: #FFFFFF;
    text-decoration: none;
    letter-spacing: 1px;
}
nav .logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1); /* Aligne temporairement en blanc si nécessaire, enlever cette ligne si le logo original coloré est préféré */
}
nav .logo span { color: var(--accent); font-weight: 300; }
nav .menu { display: flex; gap: 30px; align-items: center; }
nav a.nav-link {
    color: #E5E7EB;
    text-decoration: none;
    font-size: 10pt;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: color 0.3s ease;
    text-transform: uppercase;
}
nav a.nav-link:hover, nav a.nav-link.active { color: var(--accent); }

/* Hero & Banners */
.hero {
    background: linear-gradient(135deg, #2B1E17 0%, #3A2A20 100%);
    color: #FFFFFF;
    padding: 100px 40px;
    text-align: center;
}
.hero h1 { color: #FFFFFF; font-size: 32pt; max-width: 900px; margin: 0 auto 25px auto; }
.hero h2 {
    font-family: var(--font-sans);
    color: var(--accent);
    font-size: 14pt;
    font-weight: 400;
    letter-spacing: 1px;
    margin-bottom: 30px;
    text-transform: uppercase;
}
.hero h2::after { display: none; }
.hero p { color: #D1D5DB; max-width: 750px; margin: 0 auto 40px auto; font-size: 12pt; text-align: center; }

/* Sections */
.container { max-width: 1200px; margin: 0 auto; padding: 80px 40px; }
.bg-light-section { background-color: var(--bg-light); }

/* Grids & Panels */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 40px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 25px; margin-top: 40px; }

.card-premium {
    background: #FFFFFF;
    border: 1px solid var(--border-color);
    padding: 35px;
    border-radius: 4px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.card-premium::before {
    content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%;
    background-color: transparent; transition: background-color 0.3s ease;
}
.card-premium:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05);
    border-color: var(--accent-light);
}
.card-premium:hover::before { background-color: var(--accent); }

/* Modificateur pour la photo a propos */
.photo-portrait-about {
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
}

/* Buttons */
.cta-button {
    display: inline-block; background-color: var(--accent); color: white;
    padding: 14px 35px; text-decoration: none; font-weight: 600; font-size: 10pt;
    letter-spacing: 0.5px; text-transform: uppercase; border-radius: 3px;
    transition: all 0.3s ease; border: 1px solid var(--accent);
}
.cta-button:hover { background-color: transparent; color: var(--accent); }
.cta-secondary { background-color: transparent; color: #FFFFFF; border: 1px solid #FFFFFF; }
.cta-secondary:hover { background-color: #FFFFFF; color: var(--primary); }

/* Timeline (Methodology) */
.timeline { position: relative; margin: 50px 0; padding-left: 30px; border-left: 2px solid var(--accent-light); }
.timeline-item { position: relative; margin-bottom: 50px; }
.timeline-item::before {
    content: ''; position: absolute; left: -37px; top: 5px; width: 12px; height: 12px;
    border-radius: 50%; background-color: var(--accent); border: 3px solid #FFFFFF;
    box-shadow: 0 0 0 3px var(--accent-light);
}

/* Premium Data Tables */
table.premium-table { width: 100%; border-collapse: collapse; margin: 40px 0; font-size: 10.5pt; }
table.premium-table th {
    background-color: var(--primary); color: #FFFFFF; font-family: var(--font-serif);
    font-size: 12pt; font-weight: 500; text-align: left; padding: 16px 20px; border: 1px solid var(--primary);
}
table.premium-table td { padding: 16px 20px; border: 1px solid var(--border-color); vertical-align: top; color: var(--text-muted); }
table.premium-table tr:nth-child(even) { background-color: var(--bg-light); }
table.premium-table ul { list-style-type: none; }
table.premium-table ul li { margin-bottom: 8px; position: relative; padding-left: 15px; }
table.premium-table ul li::before { content: "•"; color: var(--accent); position: absolute; left: 0; }

/* Case Studies & Testimonials */
.case-study-box { background-color: var(--bg-light); border-left: 4px solid var(--accent); padding: 40px; margin: 50px 0; border-radius: 0 4px 4px 0; }
.case-study-meta { display: flex; gap: 30px; margin-bottom: 20px; font-size: 9.5pt; text-transform: uppercase; letter-spacing: 0.5px; color: var(--accent); font-weight: 600; }
.testimonial-block { margin-bottom: 40px; background-color: #FFFFFF; }
.testimonial-quote { font-family: var(--font-serif); font-size: 14pt; font-style: italic; color: var(--secondary); line-height: 1.6; position: relative; padding-left: 30px; margin-bottom: 15px; }
.testimonial-quote::before { content: "“"; font-size: 40pt; color: var(--accent-light); position: absolute; left: 0; top: -10px; font-family: Georgia, serif; }
.testimonial-author { font-family: var(--font-sans); font-size: 10pt; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--accent); padding-left: 30px; }

/* Forms */
.astree-form-premium { background-color: var(--bg-light); padding: 40px; border-radius: 4px; border: 1px solid var(--border-color); }
.form-group { margin-bottom: 25px; }
.form-row-two { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
label { display: block; font-size: 9.5pt; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 8px; color: var(--primary); }
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
    width: 100%; padding: 12px 15px; border: 1px solid var(--border-color); background-color: #FFFFFF;
    font-family: var(--font-sans); font-size: 10pt; color: var(--text-dark); transition: border-color 0.3s ease;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
.radio-group-premium { margin-top: 10px; }
.radio-group-premium label { display: inline-block; text-transform: none; font-weight: 400; letter-spacing: 0; margin-right: 25px; margin-bottom: 10px; cursor: pointer; }
.radio-group-premium input[type="radio"] { margin-right: 6px; accent-color: var(--accent); }
.form-group-checkbox-rgpd { margin: 30px 0; display: flex; gap: 12px; align-items: flex-start; }
.form-group-checkbox-rgpd input { margin-top: 5px; accent-color: var(--accent); }
.form-group-checkbox-rgpd label { text-transform: none; font-weight: 400; letter-spacing: 0; font-size: 8.5pt; line-height: 1.5; color: var(--text-muted); }
.btn-submit-astree-premium { background-color: var(--primary); color: #FFFFFF; border: 1px solid var(--primary); padding: 15px 40px; font-size: 10pt; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; cursor: pointer; transition: all 0.3s ease; width: 100%; }
.btn-submit-astree-premium:hover { background-color: var(--accent); border-color: var(--accent); color: var(--primary); }

/* Footer */
footer { background-color: var(--primary); color: #A79E98; padding: 60px 40px; border-top: 1px solid var(--secondary); font-size: 9.5pt; }
footer .footer-container { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
footer a { color: #D1D5DB; text-decoration: none; margin-left: 20px; transition: color 0.3s ease; }
footer a:hover { color: var(--accent); }

/* Responsive (Mobile Devices) */
@media (max-width: 900px) {
    nav { padding: 20px; flex-direction: column; gap: 15px; }
    nav .menu { gap: 15px; flex-wrap: wrap; justify-content: center; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 30px; }
    .form-row-two { grid-template-columns: 1fr; gap: 0; }
    .hero h1 { font-size: 22pt; }
    .container { padding: 50px 20px; }
    footer .footer-container { flex-direction: column; gap: 20px; text-align: center; }
    footer a { margin: 0 10px; }
}