/* 
   Textura-Origin (織本原素) - Brand Identity Styles
   Project: PRJ-139-TEXTURA-ORIGIN
*/

:root {
    --bg-linen: #E5E0D8;      /* 原胚亞麻色 */
    --accent-wood: #8D7B68;   /* 植揉暖木色 */
    --midnight-indigo: #2B3A4A; /* 午夜靛藍 */
    --mist-white: #F9F9F9;    /* 晨曦霧白 */
    --text-main: #333333;
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', 'Noto Sans TC', sans-serif;
}

body {
    background-color: var(--bg-linen);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.8;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    /* 模擬手工紙背景顆粒感 */
    background-image: url('https://www.transparenttextures.com/patterns/handmade-paper.png');
}

h1, h2, h3, h4, .serif {
    font-family: var(--font-serif);
    font-weight: 400;
    letter-spacing: 0.05em;
}

.navbar {
    background-color: rgba(229, 224, 216, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(141, 123, 104, 0.2);
    padding: 1.5rem 0;
}

.navbar-brand {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--midnight-indigo) !important;
    letter-spacing: 0.2em;
}

.nav-link {
    color: var(--accent-wood) !important;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin: 0 1rem;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: var(--midnight-indigo) !important;
    opacity: 0.7;
}

/* Hero Section */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    filter: brightness(0.8) contrast(0.9);
}

.hero-content {
    text-align: center;
    color: var(--mist-white);
    z-index: 1;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1.5s forwards 0.5s;
}

.hero-subtitle {
    font-size: 1.2rem;
    letter-spacing: 0.5em;
    opacity: 0;
    animation: fadeIn 2s forwards 1.5s;
}

/* Sections */
.section-padding {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    color: var(--midnight-indigo);
}

.section-title h2 {
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
    padding-bottom: 15px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 1px;
    background-color: var(--accent-wood);
}

/* Cards & Elements */
.card-minimal {
    background: transparent;
    border: none;
    transition: transform 0.5s ease;
}

.card-minimal:hover {
    transform: translateY(-10px);
}

.img-zoom-container {
    overflow: hidden;
    margin-bottom: 20px;
}

.img-zoom {
    transition: transform 1.5s ease;
    width: 100%;
}

.card-minimal:hover .img-zoom {
    transform: scale(1.05);
}

/* Footer */
footer {
    background-color: var(--midnight-indigo);
    color: var(--bg-linen);
    padding: 80px 0 40px;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    letter-spacing: 0.2em;
    margin-bottom: 20px;
}

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

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Utility */
.text-wood { color: var(--accent-wood); }
.text-indigo { color: var(--midnight-indigo); }
.bg-mist { background-color: var(--mist-white); }
.bg-linen { background-color: var(--bg-linen); }

.btn-outline-wood {
    border: 1px solid var(--accent-wood);
    color: var(--accent-wood);
    padding: 12px 30px;
    border-radius: 0;
    transition: all 0.3s;
}

.btn-outline-wood:hover {
    background-color: var(--accent-wood);
    color: white;
}