/* -------------------------------------------------------------
   DESIGN SYSTEM & VARIABLES
------------------------------------------------------------- */
:root {
    /* Fonts */
    --font-primary: 'Inter', 'Noto Sans TC', sans-serif;
    --font-heading: 'Outfit', 'Noto Sans TC', sans-serif;

    /* Transition speeds */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Variables (Softer & Lighter background/accent colors) */
html[data-theme="dark"] {
    --bg-primary: #0f111a;
    --bg-secondary: #161925;
    --bg-card: rgba(22, 25, 37, 0.65);
    --bg-card-hover: rgba(30, 34, 50, 0.75);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(129, 140, 248, 0.4);
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --primary-color: #818cf8;     /* Lighter Violet/Indigo */
    --primary-alt: #6366f1;
    --secondary-color: #22d3ee;   /* Lighter Cyan */
    --secondary-alt: #06b6d4;
    
    --glow-primary: rgba(129, 140, 248, 0.15);
    --glow-secondary: rgba(34, 211, 238, 0.15);
    --glow-card: rgba(0, 0, 0, 0.4);
    
    --shadow-main: 0 12px 40px 0 rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px rgba(129, 140, 248, 0.2);
    
    --input-bg: rgba(255, 255, 255, 0.04);
    --input-border: rgba(255, 255, 255, 0.1);
    --header-bg: rgba(15, 17, 26, 0.75);
}

/* Light Theme Variables (Lighter backgrounds & soft accents) */
html[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --border-color: rgba(0, 0, 0, 0.05);
    --border-hover: rgba(99, 102, 241, 0.4);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --primary-color: #6366f1;     /* Softer/Lighter Indigo */
    --primary-alt: #4f46e5;
    --secondary-color: #06b6d4;   /* Softer/Lighter Cyan */
    --secondary-alt: #0891b2;
    
    --glow-primary: rgba(99, 102, 241, 0.06);
    --glow-secondary: rgba(6, 182, 212, 0.06);
    --glow-card: rgba(148, 163, 184, 0.08);
    
    --shadow-main: 0 12px 40px 0 rgba(31, 38, 135, 0.04);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.12);
    
    --input-bg: rgba(0, 0, 0, 0.015);
    --input-border: rgba(0, 0, 0, 0.08);
    --header-bg: rgba(255, 255, 255, 0.8);
}

/* -------------------------------------------------------------
   BASE RESET & LAYOUT
------------------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

header, section, footer {
    width: 100%;
}

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

ul {
    list-style: none;
}

img, svg {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

/* -------------------------------------------------------------
   GLOWING ORBS BACKGROUND
------------------------------------------------------------- */
.blob-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.45;
    mix-blend-mode: screen;
    animation: floatBlob 20s infinite alternate ease-in-out;
    transition: opacity var(--transition-normal);
}

html[data-theme="light"] .blob {
    opacity: 0.15;
    mix-blend-mode: multiply;
    filter: blur(100px);
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 45vw;
    height: 45vw;
    background: radial-gradient(circle, var(--secondary-color) 0%, transparent 70%);
    animation-delay: -5s;
    animation-duration: 25s;
}

.blob-3 {
    top: 40%;
    left: 50%;
    width: 35vw;
    height: 35vw;
    background: radial-gradient(circle, #a855f7 0%, transparent 70%);
    animation-delay: -10s;
    animation-duration: 18s;
}

@keyframes floatBlob {
    0% {
        transform: translate(0, 0) scale(1) rotate(0deg);
    }
    100% {
        transform: translate(5%, 5%) scale(1.1) rotate(360deg);
    }
}

/* -------------------------------------------------------------
   REUSABLE UTILITIES
------------------------------------------------------------- */
.glass {
    background: var(--bg-card);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-main);
    transition: background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 24px;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary-color);
    background: var(--glow-primary);
    border: 1px solid var(--border-hover);
    border-radius: 50px;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.header-line {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 0 auto;
    border-radius: 2px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient {
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
    border: none;
    outline: none;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-alt) 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
    background: linear-gradient(135deg, var(--primary-alt) 0%, var(--primary-color) 100%);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
}

/* -------------------------------------------------------------
   HEADER / NAVIGATION
------------------------------------------------------------- */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    background-color: transparent;
    border-bottom: 1px solid transparent;
    transition: background-color var(--transition-normal), border-color var(--transition-normal), padding var(--transition-normal);
    padding: 20px 0;
}

.main-header.scrolled {
    background-color: var(--header-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 36px;
    width: auto;
    display: block;
    object-fit: contain;
    transition: filter var(--transition-normal);
}

/* Header logo scaling */
.header-logo {
    height: 36px;
}

/* In dark theme, invert the header logo to display white text/lines cleanly */
html[data-theme="dark"] .header-logo {
    filter: brightness(0) invert(1);
}

/* Footer logo spacing and sizing */
.footer-logo img {
    height: 48px;
    width: auto;
}

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

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

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

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

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

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

.btn-nav {
    display: inline-block;
    background: var(--glow-primary);
    color: var(--primary-color);
    border: 1px solid var(--border-hover);
    padding: 8px 20px !important;
    border-radius: 8px;
    font-weight: 600;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.btn-nav:hover {
    background: var(--primary-color);
    color: #ffffff !important;
    border-color: var(--primary-color);
}

.btn-nav::after {
    display: none;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Toggle */
.theme-toggle-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.theme-toggle-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.sun-icon {
    display: none;
}

html[data-theme="light"] .moon-icon {
    display: none;
}

html[data-theme="light"] .sun-icon {
    display: block;
    color: #eab308;
}

/* Mobile Menu Toggle */
.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 110;
}

.mobile-nav-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* -------------------------------------------------------------
   HERO SECTION
------------------------------------------------------------- */
.hero-section {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 24px 80px 24px;
    gap: 48px;
}

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

.hero-subtitle {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--secondary-color);
    margin-bottom: 24px;
    text-transform: uppercase;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 580px;
}

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

.hero-graphics {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-graphics::before {
    content: '';
    position: absolute;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, var(--glow-primary) 0%, transparent 60%);
    z-index: -1;
}

.hero-card {
    border-radius: 20px;
    width: 100%;
    max-width: 440px;
    overflow: hidden;
    animation: floatCard 6s infinite alternate ease-in-out;
}

@keyframes floatCard {
    0% {
        transform: translateY(0px) rotate(0deg);
    }
    100% {
        transform: translateY(-15px) rotate(1deg);
    }
}

.card-header {
    background: rgba(0, 0, 0, 0.15);
    padding: 14px 20px;
    display: flex;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
}

.card-header .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.card-header .dot.red { background: #ef4444; }
.card-header .dot.yellow { background: #f59e0b; }
.card-header .dot.green { background: #10b981; }

.card-body {
    padding: 24px;
    font-family: monospace;
    font-size: 0.9rem;
}

.code-keyword { color: #f472b6; }
.code-string { color: #34d399; }
.code-number { color: #fb923c; }

/* -------------------------------------------------------------
   ABOUT SECTION
------------------------------------------------------------- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-text-content h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
}

.about-desc {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.stats-row {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-item {
    display: flex;
    gap: 20px;
    padding: 24px;
    border-radius: 16px;
    transition: transform var(--transition-normal);
}

.feature-item:hover {
    transform: translateX(8px);
    border-color: var(--border-hover);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--glow-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.feature-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.feature-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* -------------------------------------------------------------
   SERVICES SECTION
------------------------------------------------------------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.service-card {
    position: relative;
    border-radius: 24px;
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    transition: transform var(--transition-slow), border-color var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-hover);
}

.service-card-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, var(--glow-secondary) 0%, transparent 60%);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.service-card:hover .service-card-glow {
    opacity: 1;
}

.service-icon-container {
    width: 64px;
    height: 64px;
    background: var(--glow-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 28px;
    border: 1px solid rgba(99, 102, 241, 0.1);
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    flex-grow: 1;
}

.service-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.service-details li {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* -------------------------------------------------------------
   CASES SECTION
------------------------------------------------------------- */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.case-card {
    position: relative;
    border-radius: 20px;
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-normal), border-color var(--transition-normal);
    cursor: default;
}

.case-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
}

.case-tag {
    position: absolute;
    top: 24px;
    right: 24px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--secondary-color);
    background: var(--glow-secondary);
    border: 1px solid rgba(6, 182, 212, 0.2);
    padding: 4px 10px;
    border-radius: 50px;
}

.case-icon {
    width: 48px;
    height: 48px;
    background: var(--glow-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: 24px;
}

.case-body h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.case-name {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.3;
}

.case-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* -------------------------------------------------------------
   CONTACT SECTION
------------------------------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
    align-items: stretch;
}

.contact-info-card {
    border-radius: 24px;
    padding: 40px;
    display: flex;
    flex-direction: column;
}

.contact-info-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.info-intro {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.info-item .icon-box {
    width: 40px;
    height: 40px;
    background: var(--glow-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.info-details {
    display: flex;
    flex-direction: column;
}

.info-details span {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.info-details a, .info-details address {
    font-size: 0.95rem;
    font-style: normal;
    color: var(--text-primary);
}

.info-details a:hover {
    color: var(--primary-color);
}

.map-container {
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    margin-top: auto;
}

.map-container iframe {
    display: block;
}

/* Contact Form */
.contact-form-card {
    border-radius: 24px;
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.form-title {
    margin-bottom: 36px;
}

.form-title h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.form-title p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

#hoverio-contact-form {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.input-group {
    position: relative;
    width: 100%;
}

.input-group input, .input-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 10px;
    color: var(--text-primary);
    outline: none;
    transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input-group textarea {
    resize: none;
}

.input-group label {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.95rem;
    color: var(--text-secondary);
    pointer-events: none;
    transition: transform var(--transition-fast), top var(--transition-fast), font-size var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
    padding: 0 4px;
}

.input-group textarea ~ label {
    top: 24px;
}

/* Floating label functionality */
.input-group input:focus ~ label,
.input-group input:not(:placeholder-shown) ~ label,
.input-group textarea:focus ~ label,
.input-group textarea:not(:placeholder-shown) ~ label {
    top: 0;
    transform: translateY(-50%) scale(0.85);
    background-color: var(--bg-secondary);
    color: var(--primary-color);
    border-radius: 4px;
}

/* Theme adaptation for label background */
html[data-theme="dark"] .input-group input:focus ~ label,
html[data-theme="dark"] .input-group input:not(:placeholder-shown) ~ label,
html[data-theme="dark"] .input-group textarea:focus ~ label,
html[data-theme="dark"] .input-group textarea:not(:placeholder-shown) ~ label {
    background-color: #121422; /* Matches glassmorphic card base background opacity weight */
}

html[data-theme="light"] .input-group input:focus ~ label,
html[data-theme="light"] .input-group input:not(:placeholder-shown) ~ label,
html[data-theme="light"] .input-group textarea:focus ~ label,
html[data-theme="light"] .input-group textarea:not(:placeholder-shown) ~ label {
    background-color: #ffffff;
}

.input-group input:focus, .input-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--glow-primary);
}

/* Error States */
.input-group.invalid input, .input-group.invalid textarea {
    border-color: #ef4444;
}

.input-group.invalid label {
    color: #ef4444 !important;
}

.input-group .error-msg {
    position: absolute;
    bottom: -18px;
    left: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    color: #ef4444;
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    pointer-events: none;
}

.input-group.invalid .error-msg {
    opacity: 1;
    transform: translateY(0);
}

/* Form Submit Loading */
.btn-submit {
    position: relative;
    width: 100%;
    height: 52px;
}

.btn-submit .loader {
    display: none;
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 0.8s infinite linear;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.btn-submit.loading .btn-text {
    display: none;
}

.btn-submit.loading .loader {
    display: inline-block;
}

/* Success State */
.form-success-state {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-card);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px;
    z-index: 10;
    opacity: 0;
    pointer-events: none;
    transform: scale(0.95);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.form-success-state.active {
    opacity: 1;
    pointer-events: auto;
    transform: scale(1);
}

.success-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: #10b981;
    margin-bottom: 24px;
    animation: successPop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes successPop {
    from {
        transform: scale(0.5);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.form-success-state h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.form-success-state p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 28px;
    max-width: 320px;
}

/* -------------------------------------------------------------
   FOOTER
------------------------------------------------------------- */
.main-footer {
    background-color: #0b0c10;
    color: #9ca3af;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

/* Ensure text contrast in the dark footer regardless of the page theme */
.main-footer h4 {
    color: #f3f4f6 !important;
}

.main-footer a {
    color: #9ca3af;
}

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

.main-footer .footer-motto {
    color: #9ca3af;
}

.main-footer .footer-contact-summary {
    color: #9ca3af;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 24px 48px 24px;
    display: grid;
    grid-template-columns: 1fr 0.6fr 1fr;
    gap: 64px;
}

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

.footer-logo {
    margin-bottom: 16px;
}

.footer-logo .logo-text {
    font-size: 1.75rem;
}

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

.footer-links h4, .footer-contact-summary h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

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

.footer-contact-summary {
    display: flex;
    flex-direction: column;
    gap: 14px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer-contact-summary i {
    color: var(--primary-color);
    width: 20px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 24px 0;
    transition: border-color var(--transition-normal);
}

.footer-bottom-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* -------------------------------------------------------------
   REVEAL ON SCROLL ANIMATIONS
------------------------------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* -------------------------------------------------------------
   RESPONSIVE DESIGN BREAKPOINTS
------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-section {
        grid-template-columns: 1fr;
        padding-top: 140px;
        text-align: center;
        gap: 32px;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-title {
        font-size: 3.25rem;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-graphics {
        order: -1;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 48px;
    }
    
    .footer-branding {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 1.85rem;
    }
    
    /* Navigation Menu */
    .mobile-nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--bg-secondary);
        border-left: 1px solid var(--border-color);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
        padding: 100px 40px;
        transition: right var(--transition-normal);
        z-index: 105;
    }
    
    .nav-menu.open {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 32px;
        width: 100%;
    }
    
    .nav-link {
        font-size: 1.1rem;
    }
    
    .btn-nav {
        width: 100%;
        text-align: center;
    }
    
    /* Hamburger Active Animation */
    .mobile-nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .mobile-nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    /* Body freeze on menu open */
    body.menu-open {
        overflow: hidden;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
    
    .footer-branding {
        grid-column: span 1;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-ctas .btn {
        width: 100%;
    }
    
    .stats-row {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info-card, .contact-form-card {
        padding: 28px 20px;
    }
    
    .form-success-state {
        padding: 24px;
    }
}