/*
Theme Name: Novamira Portfolio
Theme URI: https://www.heitu999.top
Author: Novamira
Description: 高规格案例展示主题 - 支持中英双语、深色模式、响应式设计
Version: 1.0.0
Requires at least: 6.7
Tested up to: 6.9
Requires PHP: 8.0
Text Domain: novamira
*/

/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Colors - Dark Tech Theme (Lightened) */
    --color-bg: #28284a;
    --color-bg-alt: #323258;
    --color-surface: #3e3e6a;
    --color-surface-hover: #4a4a7a;
    --color-text: #e8e8f0;
    --color-text-muted: #b8b8d0;
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-primary-light: #818cf8;
    --color-accent: #22d3ee;
    --color-gradient-start: #6366f1;
    --color-gradient-end: #22d3ee;
    --color-border: rgba(99, 102, 241, 0.2);
    --color-border-light: rgba(99, 102, 241, 0.4);
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-chinese: 'Noto Sans SC', var(--font-primary);
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Container */
    --container-max: 1280px;
    --gutter: 1.5rem;
}

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

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

body {
    font-family: var(--font-chinese);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: var(--color-primary-light);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

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

ul, ol {
    list-style: none;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
}

/* ============================================
   Header & Navigation
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(40, 40, 74, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    padding: 0 var(--gutter);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text);
}

.logo:hover {
    color: var(--color-primary-light);
}

.logo-svg {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.main-navigation {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    gap: var(--space-8);
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: block;
    padding: var(--space-2) 0;
    color: var(--color-text-muted);
    font-weight: 500;
    transition: color var(--transition-base);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transition: width var(--transition-base);
}

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

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

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: var(--space-3);
}

.lang-link {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.lang-link:hover,
.lang-link.current {
    color: var(--color-primary-light);
    background: var(--color-surface);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    margin: 5px 0;
    transition: var(--transition-base);
    border-radius: 2px;
}

/* Mobile Menu — defined in assets/css/style.css */
/* (intentionally empty — see assets/css/style.css for .mobile-menu styles) */

/* ============================================
   Hero Section with Carousel
   ============================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-carousel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.carousel-slide.active {
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(40, 40, 74, 0.85) 0%, rgba(62, 62, 106, 0.65) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: var(--space-8);
}

.hero-badge {
    display: inline-block;
    padding: var(--space-2) var(--space-6);
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-full);
    color: var(--color-primary-light);
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: var(--space-6);
}

.hero-title {
    font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    background: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-10);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-base);
    text-decoration: none;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-border-light);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-text);
}

/* ============================================
   Section Styles
   ============================================ */
.section {
    padding: var(--space-24) 0;
}

.section-alt {
    background: var(--color-bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-badge {
    display: inline-block;
    padding: var(--space-2) var(--space-5);
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-full);
    color: var(--color-primary-light);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--color-text);
}

.section-desc {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ============================================
   Case Cards - Infinite Horizontal Scroll
   ============================================ */
.featured-section {
    position: relative;
    overflow: hidden;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

/* Infinite scroll container */
.infinite-scroll-wrapper {
    position: relative;
    overflow: hidden;
    padding: var(--space-4) 0;
}

.infinite-scroll-track {
    display: flex;
    gap: var(--space-8);
    width: max-content;
    animation: infiniteScroll 60s linear infinite;
}

.infinite-scroll-track:hover {
    animation-play-state: paused;
}

@keyframes infiniteScroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.featured-section .case-card {
    width: 400px;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition-slow);
    flex-shrink: 0;
}

.featured-section .case-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-border-light);
    box-shadow: var(--shadow-glow);
}

.featured-section .case-thumbnail {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
    background: var(--color-bg);
}

.featured-section .case-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.featured-section .case-card:hover .case-thumbnail img {
    transform: scale(1.08);
}

.featured-section .case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(40, 40, 74, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.featured-section .case-thumbnail:hover .case-overlay {
    opacity: 1;
}

.featured-section .case-overlay span {
    color: white;
    font-size: var(--font-size-lg);
    font-weight: 600;
    padding: var(--space-3) var(--space-6);
    border: 2px solid white;
    border-radius: var(--radius-lg);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.featured-section .case-body {
    padding: var(--space-6);
}

.featured-section .case-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-3);
}

.featured-section .case-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.featured-section .tech-tag {
    padding: var(--space-1) var(--space-3);
    background: rgba(99, 102, 241, 0.2);
    color: var(--color-primary-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.featured-section .case-excerpt {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.featured-section .case-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-primary-light);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.featured-section .case-link:hover {
    color: var(--color-accent);
}

.no-cases {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--space-12);
}

/* ============================================
   Services Section
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.service-card {
    background: var(--color-surface);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.service-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-5);
    color: var(--color-primary);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-3);
}

.service-card p {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

/* ============================================
   Blog Section
   ============================================ */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.blog-card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.blog-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-border-light);
    box-shadow: var(--shadow-glow);
}

.blog-thumbnail {
    display: block;
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.blog-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.blog-card:hover .blog-thumbnail img {
    transform: scale(1.05);
}

.blog-meta {
    padding: var(--space-6);
}

.blog-categories {
    margin-bottom: var(--space-3);
}

.blog-category {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: rgba(99, 102, 241, 0.2);
    color: var(--color-primary-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.blog-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-3);
    line-height: 1.4;
}

.blog-title a {
    color: var(--color-text);
}

.blog-title a:hover {
    color: var(--color-primary-light);
}

.blog-excerpt {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.blog-date {
    display: block;
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
}

.section-action {
    margin-top: var(--space-12);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-inner {
    padding: 0 var(--gutter);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-brand .logo {
    margin-bottom: var(--space-4);
}

.footer-brand p {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

.footer-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-5);
}

.footer-links li {
    margin-bottom: var(--space-3);
}

.footer-links a,
.footer-contact a {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    transition: color var(--transition-base);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--color-primary-light);
}

.footer-contact li {
    margin-bottom: var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.footer-lang {
    margin-top: var(--space-5);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ============================================
   Animations
   ============================================ */
.fade-in {
    animation: fadeIn 1s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1200px) {
    .case-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .main-navigation {
        display: none;
    }

    .mobile-toggle {
        display: block;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: 500px;
    }

    .section {
        padding: var(--space-16) 0;
    }

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

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

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

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

@media (max-width: 576px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-actions {
        flex-direction: column;
        gap: var(--space-3);
    }

    .btn {
        padding: var(--space-3) var(--space-6);
        width: 100%;
        text-align: center;
    }
}