/* WiCare Company Site - Main Stylesheet */

/* Google Fonts - Updated font imports with variable fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300..800&family=Plus+Jakarta+Sans:wght@400..800&display=swap');

:root {
    /* Modern color scheme */
    --primary-color: #4361EE;
    --primary-light: #7EA5FF;
    --primary-dark: #3A0CA3;
    --accent-color: #4CC9F0; 
    --success-color: #06D6A0; 
    --error-color: #EF476F;

    --surface: #FFFFFF;
    --surface-variant: #F1F3FA;
    --surface-light: #F5F8FF; 
    --surface-dark: #1A2238; 

    --text-primary: #1F2937;
    --text-secondary: #4B5563;
    --text-tertiary: #9CA3AF;
    --text-on-primary: #FFFFFF;
    --text-on-dark: #F3F4F6; 

    /* Updated font system */
    --font-family-heading: 'Plus Jakarta Sans', sans-serif;
    --font-family-body: 'Inter', sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    /* Spacing */
    --spacing-xs: 0.5rem;  /* 8px */
    --spacing-sm: 1rem;    /* 16px */
    --spacing-md: 1.5rem;  /* 24px */
    --spacing-lg: 2.5rem;  /* 40px */
    --spacing-xl: 4rem;    /* 64px */
    --spacing-xxl: 6rem;   /* 96px */

    /* Updated border system */
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --border-radius-circle: 50%;
    --border-width: 1px;
    --border-color: var(--surface-variant);

    /* Updated shadow system - softer and more modern */
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.03);
    --shadow-md: 0 4px 20px rgba(15,23,42,0.05);
    --shadow-lg: 0 10px 30px rgba(15,23,42,0.07);
    --shadow-xl: 0 20px 50px rgba(15,23,42,0.1);

    /* Transitions */
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Updated gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    --gradient-accent: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    --gradient-subtle: linear-gradient(180deg, rgba(245,248,255,0) 0%, var(--surface-light) 100%);

    /* Max Width */
    --container-width: 1280px;
    --container-width-wide: 1440px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden; /* Prevent horizontal scrolling on mobile */
}

body {
    font-family: var(--font-family-body);
    color: var(--text-primary);
    background-color: var(--surface);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw; /* Ensure no content extends beyond viewport */
}

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

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

a:hover {
    color: var(--primary-dark);
}

/* Utility Classes */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: max(var(--spacing-md), 4vw);
    padding-right: max(var(--spacing-md), 4vw);
    overflow: hidden; /* Prevent content from causing horizontal scrolling */
}

.section {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.section--light {
    background-color: var(--surface-light);
}

.section--dark {
    background-color: var(--surface-dark);
    color: var(--text-on-dark);
}

.text-center {
    text-align: center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

/* Typography - Updated typography system */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.section-title {
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    line-height: 1.1;
}

.section-subtitle {
    font-size: clamp(1rem, 3vw, 1.125rem);
    color: var(--text-secondary);
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Buttons - Updated button styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: var(--transition-medium);
    gap: var(--spacing-xs);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    white-space: nowrap;
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--gradient-primary);
    color: var(--text-on-primary);
    box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn--secondary {
    background-color: var(--surface);
    color: var(--primary-color);
    border: var(--border-width) solid var(--primary-color);
}

.btn--secondary:hover {
    background-color: var(--surface-light);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn--icon .material-symbols-rounded {
    font-size: 1.25em;
}

/* Header - Updated navigation */
.main-header {
    background-color: rgba(255,255,255,0.9);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: var(--transition-medium);
    box-shadow: none;
    padding: var(--spacing-xs) 0;
}

.main-header.scrolled {
    box-shadow: var(--shadow-md);
    background-color: rgba(255,255,255,0.98);
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.brand-logo {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    font-size: 1.75rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.brand-logo img {
    height: 32px;
    width: 32px;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-menu a {
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition-fast);
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 2rem;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

/* Hero Section - 优化英雄区域 */
.hero {
    padding-top: max(130px, 15vh);
    padding-bottom: var(--spacing-xxl);
    background-color: var(--surface-light);
    position: relative;
    overflow: hidden;
}

.hero__grid {
    display: grid;
    grid-template-columns: 1fr;
    align-items: center;
    gap: var(--spacing-xl);
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero__text {
    position: relative;
    z-index: 2;
}

.hero__tagline {
    font-family: var(--font-family-heading);
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.hero__title {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero__description {
    font-size: clamp(1.125rem, 4vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero__actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

/* Updated decorative background elements */
.hero::before {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -5%;
    width: 50%;
    height: 50%;
    background: radial-gradient(circle, var(--primary-light) 0%, rgba(126,165,255,0) 70%);
    border-radius: var(--border-radius-circle);
    opacity: 0.3;
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    top: -10%;
    right: -5%;
    width: 50%;
    height: 50%;
    background: radial-gradient(circle, var(--accent-color) 0%, rgba(76,201,240,0) 70%);
    border-radius: var(--border-radius-circle);
    opacity: 0.2;
    z-index: 0;
}

/* 添加波浪效果 */
.wave-divider {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    transform: rotate(180deg);
}

.wave-divider svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 70px;
}

.wave-divider .shape-fill {
    fill: var(--surface);
}

/* Sections - General Styling */
.section-header {
    margin-bottom: var(--spacing-xl);
}

/* Features/Technology/About Card Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

/* Updated card styles */
.card {
    background-color: var(--surface);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-medium);
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid rgba(0,0,0,0.03);
    position: relative;
    isolation: isolate;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
    z-index: -1;
}

.card__icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    background-color: var(--surface-light);
    position: relative;
}

.card__icon {
    font-size: 1.75rem;
    color: var(--primary-color);
}

.card__title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.card__description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    flex-grow: 1;
}

.card__link {
    margin-top: var(--spacing-md);
    font-weight: var(--font-weight-medium);
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.card__link .material-symbols-rounded {
    font-size: 1.25em;
    transition: transform 0.2s ease-in-out;
}

.card__link:hover .material-symbols-rounded {
    transform: translateX(3px);
}

/* Solutions Section - Updated layout */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.solution-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.custom-solutions {
    background: var(--surface-variant);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.custom-solutions h3 {
    font-family: var(--font-family-heading);
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.custom-solutions p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.custom-solutions .btn {
    margin: 0 auto;
    display: inline-flex;
}

/* Solutions Card Specific Styles */
.card__icon-wrapper.inextrack {
    background-color: rgba(67, 97, 238, 0.1);
}
.card__icon-wrapper.inextrack .card__icon {
    color: var(--primary-color);
}
.card__icon-wrapper.wifall {
    background-color: rgba(6, 214, 160, 0.1);
}
.card__icon-wrapper.wifall .card__icon {
    color: var(--success-color);
}

.product-status {
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-sm);
    display: inline-block;
}

.status--live {
    background-color: rgba(6, 214, 160, 0.1);
    color: var(--success-color);
}

.status--soon {
    background-color: rgba(76, 201, 240, 0.1);
    color: var(--accent-color);
}

/* Footer */
.main-footer {
    background-color: var(--surface-dark);
    color: var(--text-on-dark);
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    position: relative;
}

.main-footer a {
    color: var(--primary-light);
    transition: var(--transition-fast);
}

.main-footer a:hover {
    color: var(--accent-color);
    text-decoration: none;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.footer-column__title {
    font-family: var(--font-family-heading);
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--text-on-dark);
    position: relative;
    display: inline-block;
}

.footer-column__title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary-light);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-contact p {
    color: var(--text-on-dark);
    opacity: 0.9;
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-on-dark);
    opacity: 0.8;
}

/* 添加一些微妙的动画效果 */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.floating {
    animation: float 8s ease-in-out infinite;
}

/* Responsive Styles - Enhanced for better adaptability */
@media (max-width: 1200px) {
    .container {
        width: 95%;
    }
    
    .hero__title {
        font-size: clamp(2.25rem, 7vw, 3.5rem);
    }
    
    .section-title {
        font-size: clamp(2rem, 4.5vw, 2.5rem);
    }
}

@media (max-width: 992px) {
    .hero__grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero__text {
        order: 1;
    }
    
    .hero__image-container {
        order: 2;
        margin-top: var(--spacing-lg);
        max-width: 70%;
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero__title {
        font-size: clamp(2rem, 6vw, 3rem);
    }
    
    .hero__description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero__actions {
        justify-content: center;
    }
    
    .section-title {
        font-size: clamp(1.75rem, 5vw, 2.25rem);
    }
    
    .card-grid {
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    /* Improved grid layouts */
    .solutions-grid,
    .card-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Navigation responsive improvements */
    .menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--surface);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-sm) 0;
        gap: 0;
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease-in-out;
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu a {
        font-size: 1.125rem;
        padding: var(--spacing-sm) var(--spacing-md);
        width: 100%;
        border-bottom: 1px solid var(--surface-variant);
    }
    
    .nav-menu a:last-child {
        border-bottom: none;
    }
    
    .nav-menu a::after {
        display: none;
    }
    
    .nav-menu a:hover, .nav-menu a.active {
        background-color: var(--surface-light);
        color: var(--primary-dark);
    }
    
    .nav-menu a:hover::after, .nav-menu a.active::after {
        width: 0;
    }
    
    /* Typography responsive adjustments */
    .hero__title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }
    
    .hero__description {
        font-size: clamp(1rem, 4vw, 1.125rem);
    }
    
    .section-title {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }
    
    .section-subtitle {
        font-size: clamp(0.9rem, 4vw, 1rem);
    }
    
    /* Footer responsive layout */
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-md);
    }
    
    /* Custom solutions section responsive adjustments */
    .custom-solutions {
        padding: var(--spacing-md);
    }
    
    /* Button adjustments */
    .btn {
        padding: 0.75rem 1.25rem;
    }
}

@media (max-width: 576px) {
    /* Container and spacing adjustments */
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
        width: 100%;
    }
    
    /* Section spacing */
    .section {
        padding-top: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
    }
    
    /* Hero section */
    .hero {
        padding-top: calc(90px + 5vh);
        padding-bottom: var(--spacing-lg);
    }
    
    .hero__title {
        font-size: clamp(1.5rem, 7vw, 2rem);
    }
    
    .hero__tagline {
        font-size: 0.875rem;
    }
    
    .hero__description {
        font-size: clamp(0.9rem, 4vw, 1rem);
    }
    
    .hero__actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero__actions .btn {
        width: 100%;
        margin-bottom: var(--spacing-xs);
    }
    
    /* Button sizing */
    .btn {
        padding: 0.7rem 1.25rem;
        font-size: 0.9rem;
    }
    
    /* Typography */
    .section-title {
        font-size: clamp(1.25rem, 6vw, 1.75rem);
        margin-bottom: var(--spacing-md);
    }
    
    .section-subtitle {
        margin-bottom: var(--spacing-md);
    }
    
    /* Card layouts */
    .card {
        padding: var(--spacing-md);
    }
    
    .card__title {
        font-size: 1.25rem;
    }
    
    /* Solutions section */
    .custom-solutions {
        padding: var(--spacing-sm);
    }
    
    .custom-solutions h3 {
        font-size: 1.3rem;
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .footer-column__title {
        margin-top: var(--spacing-md);
        font-size: 1rem;
    }
    
    .footer-column__title::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-column:first-child .footer-column__title {
        margin-top: 0;
    }
    
    /* Main nav adjustments */
    .main-nav {
        height: auto;
        padding: var(--spacing-xs) 0;
    }
    
    .brand-logo {
        font-size: 1.5rem;
    }
    
    .brand-logo img {
        height: 28px;
        width: 28px;
    }
}

/* Added for very wide screens */
@media (min-width: 1921px) {
    .container {
        max-width: var(--container-width-wide);
    }
    html {
        font-size: 18px;
    }
}