:root {
    --color-white: #ffffff;
    --color-green: #005f30;
    --color-green-dark: #014323;
    --color-gold: #e8dfc8;
    --color-gold-light: #f6f1e3;
    --color-gold-soft: #ece6d5;
    --color-black: #111111;
    --color-text: #222222;
    --color-muted: #5a5a5a;
}

/* Base */
* {
    box-sizing: border-box;
}

body, h1, h2, h3, p, ul {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
}

body {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: var(--color-gold);
    color: var(--color-text);
    line-height: 1.6;
}

/* Header */
header {
    background-color: var(--color-gold);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1em 5%;
}

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

.nav-menu li a {
    text-decoration: none;
    color: var(--color-green);
    padding: 0.5em 1em;
    font-weight: bold;
    font-size: 1.2em;
    transition: color 0.3s;
}

.nav-menu li a:hover {
    color: var(--color-white);
}

/* Section */
.details-section {
    text-align: center;
    padding: 48px 24px;
    background: linear-gradient(180deg, #ffffff 0%, #fcfcfc 100%);
    border: 1px solid rgba(0, 95, 48, 0.22);
    border-radius: 10px;
    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255,255,255,0.8);
    margin-top: 20px;
}

.details-box {
    margin: 0 auto;
    max-width: 980px;
}

.details-box h1 {
    font-size: 2.7em;
    color: var(--color-black);
    margin-bottom: 28px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

/* Intro card comme screenshot */
.intro-card {
    background: linear-gradient(180deg, #ece7d7 0%, #e7e1cf 100%);
    border-left: 4px solid var(--color-green);
    border-radius: 6px;
    padding: 16px 18px 12px 18px;
    margin: 0 auto 26px auto;
    text-align: left;
    max-width: 92%;
    box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.6),
        0 3px 8px rgba(0,0,0,0.04);
}

.intro-card p {
    font-size: 0.98em;
    line-height: 1.65;
    color: var(--color-text);
    margin-bottom: 14px;
}

.intro-card strong {
    font-weight: 700;
    color: var(--color-black);
}

/* Layout */
.details-content {
    display: flex;
    flex-wrap: wrap;
    gap: 26px;
    align-items: flex-start;
}

.details-info {
    flex: 1 1 56%;
    text-align: left;
}

.details-images {
    flex: 1 1 38%;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 3D premium cards */
.travel-card {
    position: relative;
    background:
        linear-gradient(145deg, #fffdf7 0%, #f5efdf 100%);
    border: 1px solid #d8ccab;
    border-radius: 14px;
    padding: 22px 22px 20px 22px;
    margin-bottom: 18px;
    box-shadow:
        0 14px 22px rgba(0, 0, 0, 0.07),
        0 4px 8px rgba(0, 0, 0, 0.04),
        inset 0 1px 0 rgba(255,255,255,0.75),
        inset 0 -1px 0 rgba(0,0,0,0.03);
    overflow: hidden;
}

.travel-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, rgba(255,255,255,0.22) 0%, transparent 35%),
        linear-gradient(180deg, rgba(255,255,255,0.08), transparent 70%);
    pointer-events: none;
}

.travel-card::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--color-green) 0%, #2d7a55 100%);
}

.travel-card h2 {
    font-size: 1.35em;
    color: var(--color-green);
    margin-bottom: 12px;
    font-weight: 800;
    letter-spacing: -0.01em;
    position: relative;
    z-index: 1;
}

.travel-card p {
    font-size: 1.04em;
    line-height: 1.72;
    margin-bottom: 8px;
    color: var(--color-text);
    position: relative;
    z-index: 1;
}

.travel-card ul {
    margin-left: 20px;
    margin-top: 8px;
    position: relative;
    z-index: 1;
}

.travel-card ul li {
    margin-bottom: 7px;
    line-height: 1.6;
    font-size: 1.01em;
    color: var(--color-text);
}

.price-line {
    font-size: 1.14em !important;
    color: var(--color-black) !important;
    font-weight: 700;
}

.details-note {
    margin-top: 10px;
    font-size: 1em;
    font-weight: 500;
    color: var(--color-green-dark);
}

/* Images */
.details-images img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 10px;
    box-shadow:
        0 12px 24px rgba(0, 0, 0, 0.10),
        0 4px 8px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.05);
}

.image-note {
    font-size: 0.8em;
    color: #000000;
    text-align: center;
    margin-top: 2px;
    font-style: italic;
}

/* Boutons */
.reserve-button {
    display: inline-block;
    background: linear-gradient(180deg, var(--color-green) 0%, var(--color-green-dark) 100%);
    color: var(--color-white);
    text-decoration: none;
    padding: 13px 24px;
    font-size: 1em;
    border-radius: 4px;
    margin-top: 16px;
    border: 1px solid var(--color-green-dark);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.3s ease;
    font-weight: 600;
    box-shadow: 0 8px 16px rgba(0,95,48,0.18);
}

.reserve-button:hover {
    background: var(--color-black);
    transform: translateY(-1px);
}

.guide-button {
    display: inline-block;
    background: transparent;
    color: var(--color-green);
    text-decoration: none;
    padding: 8px 20px;
    font-size: 1em;
    border-radius: 4px;
    border: 1.5px solid var(--color-green);
    cursor: pointer;
    font-weight: 700;
    transition: all 0.25s ease;
}

.guide-button:hover {
    background-color: var(--color-green);
    color: var(--color-white);
}

/* Footer */
footer {
    background-color: var(--color-gold);
    text-align: center;
    padding: 1em 0;
    margin-top: 50px;
    font-size: 1em;
    color: var(--color-black);
}

.travel-card h2:not(:first-child) {
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid rgba(0, 95, 48, 0.12);
}

/* Responsive */
@media screen and (max-width: 768px) {
    .details-content {
        flex-direction: column;
    }

    .details-box h1 {
        font-size: 2.1em;
    }

    .intro-card {
        max-width: 100%;
    }

    .intro-card p,
    .travel-card p,
    .travel-card ul li {
        font-size: 1em;
    }

    .travel-card {
        padding: 18px;
    }

    .reserve-button,
    .guide-button {
        font-size: 1em;
    }
}