/* ==========================================================================
   aicafe.tw - Design System & Stylesheet (Amber Tech Dark)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens (CSS Variables)
   -------------------------------------------------------------------------- */
:root {
    /* Color Palette */
    --color-bg-darkest: #070a13;
    --color-bg-darker: #0d1222;
    --color-bg-card: rgba(20, 27, 47, 0.45);
    --color-bg-card-hover: rgba(26, 36, 62, 0.65);
    --color-border: rgba(251, 191, 36, 0.12);
    --color-border-hover: rgba(251, 191, 36, 0.35);
    --color-border-cyan: rgba(56, 189, 248, 0.15);
    --color-border-cyan-hover: rgba(56, 189, 248, 0.4);
    
    /* Brand Accents */
    --color-primary: #fbbf24;      /* Amber 400 */
    --color-primary-glow: rgba(251, 191, 36, 0.15);
    --color-secondary: #38bdf8;    /* Sky/Cyan 400 */
    --color-secondary-glow: rgba(56, 189, 248, 0.15);
    
    /* Text Colors */
    --color-text-primary: #f8fafc;  /* Slate 50 */
    --color-text-secondary: #94a3b8;/* Slate 400 */
    --color-text-muted: #64748b;    /* Slate 500 */
    --color-text-active: #fbbf24;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #f59e0b, #fbbf24);
    --gradient-text: linear-gradient(135deg, #f8fafc 30%, #fbbf24 100%);
    --gradient-tech: linear-gradient(135deg, #38bdf8 0%, #fbbf24 100%);
    --gradient-glow-1: radial-gradient(circle, rgba(251, 191, 36, 0.08) 0%, rgba(0,0,0,0) 70%);
    --gradient-glow-2: radial-gradient(circle, rgba(56, 189, 248, 0.08) 0%, rgba(0,0,0,0) 70%);
    
    /* Spacings */
    --nav-height: 80px;
    --container-max-width: 1200px;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
    
    /* Glassmorphism Defaults */
    --glass-blur: blur(16px);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* --------------------------------------------------------------------------
   2. Reset & Global Styles
   -------------------------------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-height) + 20px);
}

body {
    background-color: var(--color-bg-darkest);
    color: var(--color-text-primary);
    font-family: 'Outfit', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-darkest);
}

::-webkit-scrollbar-thumb {
    background: var(--color-bg-card);
    border: 2px solid var(--color-bg-darkest);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

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

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

input, select, textarea, button {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: none;
    border: none;
    outline: none;
}

ul {
    list-style: none;
}

/* --------------------------------------------------------------------------
   3. Background Visual Effects
   -------------------------------------------------------------------------- */
/* Grid Background Overlay */
.grid-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: 
        linear-gradient(rgba(251, 191, 36, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(251, 191, 36, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -3;
    pointer-events: none;
}

.grid-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, transparent 20%, var(--color-bg-darkest) 80%);
}

/* Blurred Ambient Glows */
.glow-effect {
    position: fixed;
    border-radius: 50%;
    z-index: -2;
    filter: blur(120px);
    pointer-events: none;
    opacity: 0.7;
    animation: drift 25s infinite alternate ease-in-out;
}

.glow-1 {
    top: -10%;
    left: 10%;
    width: 45vw;
    height: 45vw;
    background: var(--gradient-glow-1);
}

.glow-2 {
    bottom: 10%;
    right: 10%;
    width: 50vw;
    height: 50vw;
    background: var(--gradient-glow-2);
    animation-delay: -5s;
}

@keyframes drift {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(5%, 8%) scale(1.1); }
}

/* --------------------------------------------------------------------------
   4. Typography & Common Elements
   -------------------------------------------------------------------------- */
.text-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.section-container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 100px 24px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.85rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-bg-darkest);
    box-shadow: 0 4px 20px rgba(251, 191, 36, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(251, 191, 36, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.btn-outline {
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    background: transparent;
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-bg-darkest);
    box-shadow: 0 0 15px var(--color-primary-glow);
}

.btn-block {
    display: flex;
    width: 100%;
}

.required {
    color: #ef4444;
    margin-left: 2px;
}

/* --------------------------------------------------------------------------
   5. Header & Navigation
   -------------------------------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: rgba(7, 10, 19, 0.7);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 100;
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    height: 70px;
    background-color: rgba(7, 10, 19, 0.85);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: var(--container-max-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -1px;
    display: flex;
    align-items: center;
}

.logo-accent {
    color: var(--color-primary);
    text-shadow: 0 0 15px rgba(251, 191, 36, 0.4);
}

.logo-dot {
    color: var(--color-secondary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    position: relative;
    padding: 8px 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-text-primary);
}

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

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

.nav-cta {
    margin-left: 8px;
}

/* Hamburger Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    cursor: pointer;
}

.hamburger-bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* Mobile Responsive Navigation */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        height: 0;
        background: rgba(7, 10, 19, 0.96);
        backdrop-filter: var(--glass-blur);
        flex-direction: column;
        justify-content: flex-start;
        padding: 0;
        gap: 0;
        overflow: hidden;
        transition: var(--transition-smooth);
        border-bottom: 0 solid rgba(255, 255, 255, 0.05);
    }
    
    .nav-menu.open {
        height: calc(100vh - var(--nav-height));
        padding: 40px 24px;
        gap: 24px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .nav-link {
        font-size: 1.15rem;
        width: 100%;
        text-align: center;
        padding: 12px 0;
    }
    
    .nav-cta {
        margin-left: 0;
        width: 100%;
        margin-top: 16px;
    }
    
    /* Toggle animations */
    .menu-toggle.open .hamburger-bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .menu-toggle.open .hamburger-bar:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.open .hamburger-bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
}

/* --------------------------------------------------------------------------
   6. Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
    position: relative;
    padding-top: calc(var(--nav-height) + 60px);
    padding-bottom: 100px;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-badge {
    background: rgba(251, 191, 36, 0.05);
    border: 1px solid var(--color-border);
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-primary);
    display: inline-block;
}

.hero-title {
    font-size: 3.25rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 20px;
    letter-spacing: -1.5px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    margin-bottom: 36px;
    line-height: 1.7;
    max-width: 550px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-wrapper {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.07);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    transition: var(--transition-smooth);
}

.visual-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 60%, rgba(7, 10, 19, 0.6) 100%);
    pointer-events: none;
}

.hero-img {
    transition: var(--transition-smooth);
    width: 100%;
    display: block;
}

.visual-wrapper:hover {
    transform: translateY(-5px) scale(1.01);
    border-color: var(--color-border-hover);
    box-shadow: 0 25px 50px rgba(251, 191, 36, 0.1);
}

.visual-wrapper:hover .hero-img {
    transform: scale(1.04);
}

.visual-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(251, 191, 36, 0.12) 0%, transparent 60%);
    z-index: -1;
    pointer-events: none;
}

@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-title {
        font-size: 2.75rem;
    }
    
    .hero-subtitle {
        margin: 0 auto 36px;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        max-width: 600px;
        margin: 0 auto;
    }
}

/* --------------------------------------------------------------------------
   7. Services Section
   -------------------------------------------------------------------------- */
.services-section {
    background-color: var(--color-bg-darker);
    border-top: 1px solid rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

@media (min-width: 993px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Service Card Styles */
.service-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 36px 30px;
    position: relative;
    overflow: hidden;
    backdrop-filter: var(--glass-blur);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.service-card:hover {
    transform: translateY(-5px);
    background: var(--color-bg-card-hover);
    box-shadow: var(--glass-shadow);
}

/* Alternate colors: Service 2 (Web) is Cyan; Services 1 (Coffee), 3 (Machining), 4 (Dispenser) are Amber */
.service-card:nth-child(2) .service-icon-wrapper {
    background: rgba(56, 189, 248, 0.06);
    color: var(--color-secondary);
}

.service-card:nth-child(2) {
    border-color: var(--color-border-cyan);
}

.service-card:nth-child(2):hover {
    border-color: var(--color-border-cyan-hover);
    box-shadow: 0 10px 30px rgba(56, 189, 248, 0.08);
}

/* Amber Services */
.service-card:nth-child(1) .service-icon-wrapper,
.service-card:nth-child(3) .service-icon-wrapper,
.service-card:nth-child(4) .service-icon-wrapper {
    background: rgba(251, 191, 36, 0.06);
    color: var(--color-primary);
}

.service-card:nth-child(1),
.service-card:nth-child(3),
.service-card:nth-child(4) {
    border-color: var(--color-border);
}

.service-card:nth-child(1):hover,
.service-card:nth-child(3):hover,
.service-card:nth-child(4):hover {
    border-color: var(--color-border-hover);
    box-shadow: 0 10px 30px rgba(251, 191, 36, 0.08);
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 0%), rgba(255, 255, 255, 0.03) 0%, transparent 50%);
    z-index: 1;
    pointer-events: none;
}

.service-icon-wrapper {
    width: 54px;
    height: 54px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.service-icon {
    width: 26px;
    height: 26px;
}

.service-card .service-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.service-card .service-desc {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

/* Toggle Accordion Content */
.service-details {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    width: 100%;
    transition: max-height 0.5s cubic-bezier(0, 1, 0, 1), opacity 0.3s ease;
}

.service-card.active .service-details {
    max-height: 1000px; /* high enough limit */
    opacity: 1;
    margin-bottom: 20px;
    transition: max-height 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s ease 0.1s;
}

.detail-list {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 20px;
}

.detail-list li {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
    position: relative;
    padding-left: 18px;
    line-height: 1.5;
}

.detail-list li::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 8px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background-color: var(--color-primary);
}

.service-card:nth-child(1) .detail-list li::before,
.service-card:nth-child(2) .detail-list li::before,
.service-card:nth-child(3) .detail-list li::before {
    background-color: var(--color-secondary);
}

.detail-list li strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

/* Toggle Button */
.btn-card-toggle {
    margin-top: auto;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    z-index: 2;
    padding: 4px 0;
}

.service-card:nth-child(2) .btn-card-toggle {
    color: var(--color-secondary);
}

.chevron-icon {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.service-card.active .chevron-icon {
    transform: rotate(180deg);
}

/* Card Active Glows */
.service-card.active {
    background: rgba(20, 27, 47, 0.7);
}

.service-card.active:nth-child(2) {
    border-color: var(--color-secondary);
    box-shadow: 0 10px 40px rgba(56, 189, 248, 0.15);
}

.service-card.active:nth-child(1),
.service-card.active:nth-child(3),
.service-card.active:nth-child(4) {
    border-color: var(--color-primary);
    box-shadow: 0 10px 40px rgba(251, 191, 36, 0.15);
}

@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Remove column spans on tablet */
    .services-grid > * {
        grid-column: span 1 !important;
        margin-left: 0 !important;
        width: 100% !important;
    }
}

@media (max-width: 600px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

/* --------------------------------------------------------------------------
   8. About Us Section
   -------------------------------------------------------------------------- */
.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.about-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.about-content .section-title::after {
    left: 0;
    transform: none;
}

.about-lead {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-top: 10px;
    margin-bottom: 20px;
}

.about-text {
    color: var(--color-text-secondary);
    margin-bottom: 18px;
    font-size: 1rem;
}

.features-row {
    display: flex;
    gap: 30px;
    margin-top: 24px;
    width: 100%;
    flex-wrap: wrap;
}

.feature-item {
    flex: 1;
    min-width: 120px;
}

.feature-number {
    font-size: 2.25rem;
    font-weight: 800;
    background: var(--gradient-tech);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
}

.feature-label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* Vision Card */
.about-vision-card {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.03) 0%, rgba(56, 189, 248, 0.03) 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 40px;
    position: relative;
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

.about-vision-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-tech);
    opacity: 0.05;
    filter: blur(10px);
    z-index: -1;
}

.vision-icon {
    width: 50px;
    height: 50px;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.about-vision-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.about-vision-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

/* --------------------------------------------------------------------------
   9. Contact Section
   -------------------------------------------------------------------------- */
.contact-section {
    background-color: var(--color-bg-darker);
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
    align-items: start;
}

.contact-info-panel {
    display: flex;
    flex-direction: column;
}

.contact-info-panel .section-title::after {
    left: 0;
    transform: none;
}

.contact-lead {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-top: 10px;
    margin-bottom: 16px;
}

.contact-text {
    color: var(--color-text-secondary);
    margin-bottom: 36px;
}

/* Contact Cards */
.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition-smooth);
}

#btn-copy-email {
    cursor: pointer;
}

#btn-copy-email:hover {
    background: rgba(251, 191, 36, 0.04);
    border-color: rgba(251, 191, 36, 0.3);
    transform: translateX(4px);
}

.contact-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(251, 191, 36, 0.05);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid rgba(251, 191, 36, 0.1);
}

.contact-card-icon svg {
    width: 20px;
    height: 20px;
}

.contact-card-body {
    display: flex;
    flex-direction: column;
}

.contact-card-title {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-bottom: 4px;
}

.contact-card-value {
    font-size: 1.05rem;
    font-weight: 600;
}

/* Contact Form Panel */
.contact-form-panel {
    background: rgba(13, 18, 34, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: var(--glass-blur);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    background: rgba(7, 10, 19, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--color-text-primary);
    font-size: 0.95rem;
    transition: var(--transition-fast);
    width: 100%;
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
    padding-right: 40px;
    cursor: pointer;
}

.form-group select option {
    background-color: var(--color-bg-darker);
    color: var(--color-text-primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(148, 163, 184, 0.4);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    background-color: rgba(7, 10, 19, 0.8);
    box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.1);
}

.btn-icon {
    width: 18px;
    height: 18px;
}

@media (max-width: 992px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

@media (max-width: 600px) {
    .form-group-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-panel {
        padding: 24px;
    }
}

/* --------------------------------------------------------------------------
   10. Footer Section
   -------------------------------------------------------------------------- */
.footer {
    background-color: var(--color-bg-darkest);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 80px;
}

.footer-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px 60px;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.footer-tagline {
    color: var(--color-text-secondary);
    max-width: 380px;
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.footer-links-col {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.links-title {
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    color: var(--color-text-primary);
    margin-bottom: 6px;
}

.footer-links-col a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.footer-links-col a:hover {
    color: var(--color-primary);
}

/* Footer Bottom */
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.02);
    padding: 30px 0;
}

.footer-bottom-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.back-to-top {
    font-weight: 600;
    color: var(--color-primary);
}

.back-to-top:hover {
    color: var(--color-text-primary);
}

@media (max-width: 768px) {
    .footer-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .footer-bottom-container {
        flex-direction: column;
        text-align: center;
    }
}

/* --------------------------------------------------------------------------
   11. Custom Toast Notification
   -------------------------------------------------------------------------- */
.toast-container {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    z-index: 1000;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    pointer-events: none;
}

.toast-container.show {
    transform: translateX(-50%) translateY(0);
}

.toast {
    background: rgba(251, 191, 36, 0.95);
    color: #070a13;
    padding: 12px 28px;
    border-radius: 100px;
    box-shadow: 0 10px 30px rgba(251, 191, 36, 0.3);
    backdrop-filter: var(--glass-blur);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --------------------------------------------------------------------------
   12. Standard Micro-Animations
   -------------------------------------------------------------------------- */
.animate-fade-in {
    opacity: 0;
    animation: fadeIn 0.8s forwards ease;
}

.animate-slide-up {
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.8s forwards cubic-bezier(0.16, 1, 0.3, 1);
}

.animate-slide-up-delay {
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.8s forwards cubic-bezier(0.16, 1, 0.3, 1);
    animation-delay: 0.15s;
}

.animate-slide-up-delay-more {
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.8s forwards cubic-bezier(0.16, 1, 0.3, 1);
    animation-delay: 0.3s;
}

.animate-fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    animation: fadeInRight 1s forwards cubic-bezier(0.16, 1, 0.3, 1);
    animation-delay: 0.2s;
}

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

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ==========================================================================
   13. Subpages Specific Styling
   ========================================================================== */
.btn-service-link {
    display: inline-flex;
    align-items: center;
    margin-top: 15px;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--color-primary);
    text-shadow: 0 0 8px rgba(251, 191, 36, 0.2);
    transition: var(--transition-fast);
}

.service-card:nth-child(2) .btn-service-link {
    color: var(--color-secondary);
    text-shadow: 0 0 8px rgba(56, 189, 248, 0.2);
}

.btn-service-link:hover {
    transform: translateX(4px);
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 24px;
    transition: var(--transition-fast);
}

.btn-back:hover {
    color: var(--color-primary);
    transform: translateX(-4px);
}

.btn-back svg {
    width: 20px;
    height: 20px;
}

/* Subpage Hero */
.subpage-hero {
    position: relative;
    padding-top: calc(var(--nav-height) + 40px);
    padding-bottom: 60px;
    text-align: left;
}

.subpage-hero .hero-badge {
    margin-bottom: 16px;
}

.subpage-hero-title {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.subpage-hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 800px;
    line-height: 1.7;
}

/* Two Column Layout */
.subpage-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: start;
}

.subpage-main {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.subpage-sidebar {
    position: sticky;
    top: calc(var(--nav-height) + 40px);
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.sidebar-card {
    background: rgba(20, 27, 47, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 30px;
    backdrop-filter: var(--glass-blur);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.sidebar-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    padding-left: 12px;
}

.sidebar-card h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 3px;
    width: 4px;
    height: 16px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.sidebar-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sidebar-list li {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.sidebar-list li strong {
    color: var(--color-text-primary);
    display: block;
    margin-bottom: 2px;
}

/* Detail Section Block */
.detail-block {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    padding: 40px;
}

.detail-block-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--color-text-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 12px;
}

.subpage-desc-text {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 24px;
}

/* Sub-features Grid */
.sub-features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 10px;
}

.sub-feature-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 24px;
    transition: var(--transition-fast);
}

.sub-feature-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--color-primary);
}

.sub-feature-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-text-primary);
}

.sub-feature-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Technical Specification Table */
.tech-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    background: rgba(7, 10, 19, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    overflow: hidden;
}

.tech-table th, .tech-table td {
    padding: 12px 18px;
    text-align: left;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.tech-table th {
    background: rgba(251, 191, 36, 0.04);
    color: var(--color-primary);
    font-weight: 700;
}

.tech-table tr:last-child td {
    border-bottom: none;
}

.tech-table tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* Process Timeline (Step-by-step) */
.process-timeline {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.process-step {
    display: flex;
    gap: 20px;
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--color-bg-darkest);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.85rem;
    flex-shrink: 0;
    box-shadow: 0 0 10px rgba(251, 191, 36, 0.2);
}

.step-content {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 10px;
    padding: 18px 20px;
    flex-grow: 1;
}

.step-content h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--color-text-primary);
}

.step-content p {
    color: var(--color-text-secondary);
    font-size: 0.88rem;
    line-height: 1.5;
}

@media (max-width: 992px) {
    .subpage-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .subpage-sidebar {
        position: static;
    }
    .subpage-hero-title {
        font-size: 2.25rem;
    }
    .detail-block {
        padding: 30px 24px;
    }
}

@media (max-width: 600px) {
    .sub-features-grid {
        grid-template-columns: 1fr;
    }
    .tech-table th, .tech-table td {
        padding: 10px 12px;
        font-size: 0.85rem;
    }
}

/* ==========================================================================
   14. Case Studies Specific Styling
   ========================================================================== */
.cases-section {
    padding: 80px 0;
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 48px;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    backdrop-filter: var(--glass-blur);
}

.filter-btn:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: rgba(251, 191, 36, 0.05);
}

.filter-btn.active {
    background: var(--color-primary);
    color: #0b0f19;
    border-color: var(--color-primary);
    box-shadow: 0 4px 20px rgba(251, 191, 36, 0.25);
}

.filter-btn.active.btn-cyan {
    background: var(--color-secondary);
    color: #0b0f19;
    border-color: var(--color-secondary);
    box-shadow: 0 4px 20px rgba(56, 189, 248, 0.25);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.case-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 16px;
    position: relative;
    overflow: hidden;
    backdrop-filter: var(--glass-blur);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.case-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-border-hover);
    box-shadow: var(--glass-shadow);
}

/* RWD Image Size Adjustment & Aspect Ratio Safety Safeguard */
.case-image-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.case-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
    display: block;
}

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

.case-info {
    padding: 20px 8px 8px 8px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.case-tag {
    display: inline-block;
    align-self: flex-start;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
    background: rgba(251, 191, 36, 0.08);
    color: var(--color-primary);
    border: 1px solid rgba(251, 191, 36, 0.15);
}

.case-tag.tag-cyan {
    background: rgba(56, 189, 248, 0.08);
    color: var(--color-secondary);
    border: 1px solid rgba(56, 189, 248, 0.15);
}

.case-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
}

.case-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
    margin-bottom: 16px;
    flex-grow: 1;
}

.case-date {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.3);
    margin-top: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 12px;
}

/* Home page Cases summary layout override */
.home-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

@media (max-width: 992px) {
    .home-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .home-cases-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   15. Google Translate Custom Overrides
   ========================================================================== */
.translate-wrapper {
    display: inline-flex;
    align-items: center;
    margin-right: 15px;
    height: 38px;
    vertical-align: middle;
    z-index: 100;
}

#google_translate_element select.goog-te-combo {
    background: rgba(20, 27, 47, 0.6) !important;
    border: 1px solid var(--color-border) !important;
    color: var(--color-text-primary) !important;
    padding: 6px 28px 6px 12px !important;
    border-radius: 8px !important;
    font-family: inherit !important;
    font-size: 0.85rem !important;
    font-weight: 500 !important;
    cursor: pointer !important;
    outline: none !important;
    transition: var(--transition-fast) !important;
    appearance: none !important; /* Hide default dropdown arrow */
    -webkit-appearance: none !important;
    -moz-appearance: none !important;
    background-image: url("data:image/svg+xml;utf8,<svg fill='white' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>") !important;
    background-repeat: no-repeat !important;
    background-position: right 8px center !important;
    background-size: 18px !important;
}

#google_translate_element select.goog-te-combo:hover {
    border-color: var(--color-primary) !important;
    background-color: rgba(251, 191, 36, 0.08) !important;
}

/* Hide Google Translate top banner frame */
.goog-te-banner-frame.skiptranslate,
.goog-te-banner-frame,
#goog-gt-tt {
    display: none !important;
}

body {
    top: 0px !important;
}

/* Hide "Powered by Google" text label */
.goog-te-gadget {
    color: transparent !important;
    font-size: 0px !important;
}

.goog-te-gadget .goog-te-combo {
    margin: 0 !important;
}

/* Align properly in mobile nav */
@media (max-width: 992px) {
    .translate-wrapper {
        margin: 15px 0;
        width: 100%;
        justify-content: center;
    }
    #google_translate_element select.goog-te-combo {
        width: 80% !important;
        text-align: center !important;
        background-position: right 20% center !important;
    }
}