:root {
    --dark-deep: #061A40;
    --dark-primary: #041C4A;
    --dark-secondary: #082255;
    --blue-rich: #0A3D91;
    --blue-main: #003FAD;
    --blue-bright: #0057D9;
    --blue-accent: #1D6BFF;
    
    --dark-card: rgba(255, 255, 255, 0.05);
    --dark-card-hover: rgba(255, 255, 255, 0.08);
    --dark-border: rgba(255, 255, 255, 0.12);
    --dark-border-strong: rgba(255, 255, 255, 0.18);
    
    --dark-text-primary: #FFFFFF;
    --dark-text-secondary: #C7D8FF;
    --dark-text-muted: rgba(199, 216, 255, 0.6);
    --dark-text-highlight: #4DA3FF;
    
    --banner-dark: #041C4A;
    --banner-mid: #003FAD;
    --banner-light: #1D6BFF;
    
    --light-bg: #f5f7fb;
    --light-surface: #ffffff;
    --light-border: #e5e7eb;
    --light-border-hover: #d1d5db;
    
    --light-text-primary: #0f172a;
    --light-text-secondary: #374151;
    --light-text-muted: #6b7280;
    --light-text-link: #2563eb;
    
    --light-blue-dark: #1e3a8a;
    --light-blue: #1e40af;
    --light-blue-bright: #3b82f6;
    --light-blue-bg: #eff6ff;
    
    --gradient-primary: linear-gradient(135deg, #003FAD 0%, #0057D9 50%, #1D6BFF 100%);
    --gradient-hero: linear-gradient(180deg, #061A40 0%, #041C4A 40%, #082255 100%);
    --gradient-glow: radial-gradient(circle at 50% 50%, rgba(0, 63, 173, 0.5) 0%, transparent 70%);
    --gradient-text: linear-gradient(135deg, #4DA3FF 0%, #1D6BFF 50%, #0057D9 100%);
    
    --gradient-banner: linear-gradient(105deg, #041C4A 0%, #032461 20%, #003FAD 50%, #0A56D4 75%, #1D6BFF 100%);

    --font-display: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* === Shadows === */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
    --shadow-card: 0 4px 10px rgba(0, 0, 0, 0.04);
    --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.1);
    --shadow-card-active: 0 2px 6px rgba(0, 0, 0, 0.06);
    --shadow-blue: 0 4px 20px rgba(0, 63, 173, 0.3);
    --shadow-glow: 0 0 40px rgba(0, 63, 173, 0.4);
    --shadow-banner: 0 8px 32px rgba(0, 31, 87, 0.3);
    
    /* === Border Radius === */
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --radius-2xl: 20px;

    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
    
    --container-max: 1100px;
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--dark-deep);
    color: var(--dark-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

body.page-light {
    background: var(--light-bg);
    color: var(--light-text-primary);
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
}

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

.mt-4 {
    margin-top: 32px;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(6, 26, 64, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--dark-border);
    transition: all var(--transition-smooth);
}

.header.scrolled {
    background: rgba(6, 26, 64, 0.95);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
    border-bottom-color: rgba(0, 63, 173, 0.3);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--dark-text-primary);
    transition: opacity var(--transition-fast);
}

.logo:hover {
    opacity: 0.9;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: transparent;
    box-shadow: none;
    transition: box-shadow var(--transition-base);
}

.logo:hover .logo-icon {
    box-shadow: var(--shadow-glow);
}

.logo-icon svg {
    color: white;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo-dot {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--dark-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
    padding: 4px 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width var(--transition-base);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0) scale(0.97);
    box-shadow: var(--shadow-md);
}

.btn-light {
    background: white;
    color: var(--dark-deep);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.btn-light:hover {
    box-shadow: 0 8px 30px rgba(0, 63, 173, 0.5);
    transform: translateY(-2px);
}

.btn-light:active {
    transform: translateY(0) scale(0.97);
}

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

.btn-outline:hover {
    background: var(--dark-card);
    border-color: var(--dark-border-strong);
}

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

.btn-sm {
    padding: 8px 16px;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 0.9375rem;
}

.btn-submit {
    background: var(--light-blue);
    color: white;
    padding: 12px 28px;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-submit:hover {
    background: var(--light-blue-dark);
    box-shadow: 0 4px 16px rgba(30, 64, 175, 0.3);
    transform: translateY(-1px);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark-text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(75deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-75deg) translate(5px, -5px);
}

.page-content {
    padding-top: 104px;
    padding-bottom: 60px;
    min-height: 60vh;
}

.hero {
    position: relative;
    padding: 120px 0 80px;
    background: var(--gradient-hero);
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    opacity: 0.25;
    background-image: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.18) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: var(--gradient-glow);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 560px;
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--dark-text-secondary);
    backdrop-filter: blur(10px);
    margin-bottom: 20px;
}

.badge svg {
    color: var(--dark-text-highlight);
}

/* Hero Title */
.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--dark-text-primary);
}

.text-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.0625rem;
    color: var(--dark-text-secondary);
    max-width: 480px;
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 380px;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark-text-primary);
}

.stat-label {
    display: block;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--dark-text-muted);
    margin-top: 4px;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.hero-glow {
    position: absolute;
    inset: -10%;
    background: var(--gradient-glow);
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.6;
}

.hero-cards {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    z-index: 1;
}

.float-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px;
    background: rgba(10, 61, 145, 0.3);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-smooth);
}

.float-card:hover {
    background: rgba(0, 63, 173, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 63, 173, 0.4);
}

.float-card svg {
    flex-shrink: 0;
    color: var(--dark-text-highlight);
}

.float-card .card-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--dark-text-primary);
    margin-bottom: 2px;
}

.float-card .card-subtitle {
    font-size: 0.75rem;
    color: var(--dark-text-muted);
}

.card-1 { animation-delay: 0s; }
.card-2 { animation-delay: 0.1s; }
.card-3 { animation-delay: 0.2s; }
.card-4 { animation-delay: 0.3s; }

.tools-hero-banner {
    position: relative;
    background: var(--gradient-banner);
    color: white;
    padding: 48px 48px;
    border-radius: var(--radius-xl);
    margin-bottom: 40px;
    overflow: hidden;
    box-shadow: var(--shadow-banner);
}

.tools-hero-banner::after {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(29, 107, 255, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.tools-hero-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.08;
    background-image: radial-gradient(circle at 20% 30%, white 1px, transparent 1px);
    background-size: 24px 24px;
    pointer-events: none;
}

.banner-content {
    position: relative;
    z-index: 1;
}

.banner-badge {
    display: inline-block;
    text-transform: uppercase;
    font-size: 0.6875rem;
    letter-spacing: 1.5px;
    font-weight: 600;
    opacity: 0.85;
    margin-bottom: 12px;
    background: rgba(255, 255, 255, 0.12);
    padding: 4px 12px;
    border-radius: 100px;
}

.tools-hero-banner h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: white;
    letter-spacing: -0.02em;
}

.tools-hero-banner p {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.6;
    max-width: 550px;
    color: rgba(255, 255, 255, 0.85);
}

.features-bar-white {
    background: #ffffff;
    border-top: 1px solid #e5e7eb;
    border-bottom: 1px solid #e5e7eb;
}

.features-bar-white--compact {
    margin-bottom: 32px;
    border-radius: var(--radius-xl);
    border: 1px solid var(--light-border);
    box-shadow: var(--shadow-sm);
    background: #ffffff;
}

.features-grid-white {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding: 32px 0;
}

.features-bar-white--compact .features-grid-white {
    padding: 24px 32px;
}

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

.feature-icon-white {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: #eff6ff;
    color: #1e40af;
    flex-shrink: 0;
    transition: all var(--transition-base);
}

.feature-item-white:hover .feature-icon-white {
    background: #dbeafe;
    transform: scale(1.05);
}

.feature-title-white {
    font-size: 0.9375rem;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 4px;
}

.feature-desc-white {
    font-size: 0.8125rem;
    color: #6b7280;
    line-height: 1.5;
}

.tools-preview {
    background: #f5f7fb;
    padding: 80px 0;
}

.section-header-light {
    max-width: 560px;
    margin-bottom: 48px;
}

.section-header-light h2 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.section-header-light p {
    font-size: 1.0625rem;
    color: #6b7280;
    line-height: 1.6;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.tool-card-light {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.04);
    text-decoration: none;
    color: inherit;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

.tool-card-light::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 3px 3px 0 0;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-card-light:hover::before {
    transform: scaleX(1);
}

.tool-card-light:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
    border-color: #c7d2fe;
}

.tool-card-light:active {
    transform: translateY(-2px) scale(0.97);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border-color: #a5b4fc;
    transition: all 0.1s ease;
}

.tool-card-light:focus-visible {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
    border-radius: var(--radius-lg);
}

/* Icon container */
.tool-icon-light {
    width: 44px;
    height: 44px;
    background: #1e40af;
    color: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    flex-shrink: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
}

.tool-card-light:hover .tool-icon-light {
    transform: scale(1.08) rotate(-5deg);
    box-shadow: 0 6px 20px rgba(30, 64, 175, 0.4);
    background: #1e3a8a;
}

.tool-card-light:active .tool-icon-light {
    transform: scale(0.95) rotate(0deg);
    transition: all 0.1s ease;
}

/* Title */
.tool-card-light h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 6px;
    transition: color 0.2s ease;
    position: relative;
    z-index: 1;
}

.tool-card-light:hover h3 {
    color: #1e3a8a;
}

.tool-card-light p {
    font-size: 0.8125rem;
    color: #6b7280;
    line-height: 1.5;
    margin-bottom: 16px;
    flex-grow: 1;
    transition: color 0.2s ease;
    position: relative;
    z-index: 1;
}

.tool-card-light:hover p {
    color: #4b5563;
}

.tool-link-light {
    font-size: 0.875rem;
    font-weight: 500;
    color: #2563eb;
    transition: all 0.25s ease;
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.tool-link-light::after {
    content: '→';
    display: inline-block;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-card-light:hover .tool-link-light {
    color: #1e3a8a;
}

.tool-card-light:hover .tool-link-light::after {
    transform: translateX(4px);
}

/* Ripple effect container */
.tool-card-light .ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(30, 64, 175, 0.15);
    transform: scale(0);
    animation: ripple 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.tool-card-light:nth-child(1) { animation: fadeUp 0.5s ease-out 0.05s both; }
.tool-card-light:nth-child(2) { animation: fadeUp 0.5s ease-out 0.1s both; }
.tool-card-light:nth-child(3) { animation: fadeUp 0.5s ease-out 0.15s both; }
.tool-card-light:nth-child(4) { animation: fadeUp 0.5s ease-out 0.2s both; }
.tool-card-light:nth-child(5) { animation: fadeUp 0.5s ease-out 0.25s both; }
.tool-card-light:nth-child(6) { animation: fadeUp 0.5s ease-out 0.3s both; }
.tool-card-light:nth-child(7) { animation: fadeUp 0.5s ease-out 0.35s both; }
.tool-card-light:nth-child(8) { animation: fadeUp 0.5s ease-out 0.4s both; }
.tool-card-light:nth-child(9) { animation: fadeUp 0.5s ease-out 0.45s both; }
.tool-card-light:nth-child(10) { animation: fadeUp 0.5s ease-out 0.5s both; }


.about-content-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: start;
}

.about-text-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 16px;
}

.about-text-content p {
    font-size: 0.9375rem;
    color: #374151;
    line-height: 1.7;
    margin-bottom: 24px;
}

.about-features-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.about-features-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.875rem;
    color: #374151;
}

.check-icon {
    width: 22px;
    height: 22px;
    background: #dcfce7;
    color: #16a34a;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

/* About Tech Card */
.about-tech-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius-xl);
    padding: 28px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.about-tech-card:hover {
    box-shadow: var(--shadow-lg);
}

.about-tech-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 20px;
}

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

.tech-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 12px;
    border-bottom: 1px solid #e5e7eb;
    transition: all var(--transition-fast);
}

.tech-row:hover {
    padding-left: 4px;
}

.tech-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.tech-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6b7280;
    font-weight: 500;
}

.tech-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: #0f172a;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
}

/* Contact Info Cards */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-info-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    cursor: default;
}

.contact-info-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: #d1d5db;
}

.contact-icon-wrap {
    width: 44px;
    height: 44px;
    background: #1e40af;
    color: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition-base);
}

.contact-info-card:hover .contact-icon-wrap {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.3);
}

.contact-info-card h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 2px;
}

.contact-info-card p {
    font-size: 0.8125rem;
    color: #6b7280;
}

/* Contact Form Card */
.contact-form-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.contact-form-card:hover {
    box-shadow: var(--shadow-lg);
}

.contact-form-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 24px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: #374151;
}

.form-group input,
.form-group textarea {
    padding: 10px 14px;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: #0f172a;
    background: #fafbfc;
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input:hover,
.form-group textarea:hover {
    border-color: #d1d5db;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    background: white;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #9ca3af;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group.has-error input,
.form-group.has-error textarea {
    border-color: #ef4444;
    background: #fef2f2;
}

.form-group.has-error input:focus,
.form-group.has-error textarea:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.footer {
    background: var(--dark-deep);
    padding: 60px 0 0;
    border-top: 1px solid var(--dark-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
}

.footer-logo-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.footer-logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--gradient-primary);
    box-shadow: var(--shadow-blue);
}

.footer-logo-icon {
    background: transparent;
}

.footer-logo-text {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--dark-text-primary);
}

.footer-desc {
    font-size: 0.875rem;
    color: var(--dark-text-muted);
    line-height: 1.7;
    max-width: 400px;
}

.footer-links-col h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dark-text-primary);
    margin-bottom: 16px;
}

.footer-links-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links-col a {
    color: var(--dark-text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-links-col a:hover {
    color: var(--dark-text-highlight);
}

.footer-links-col ul li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--dark-text-muted);
    font-size: 0.875rem;
}

.footer-links-col ul li svg {
    color: var(--dark-text-highlight);
    flex-shrink: 0;
}

.footer-bottom {
    border-top: 1px solid var(--dark-border);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--dark-text-muted);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f5f7fb;
}

body:not(.page-light)::-webkit-scrollbar-track {
    background: #061A40;
}

::-webkit-scrollbar-thumb {
    background: #c1c9d6;
    border-radius: 4px;
}

body:not(.page-light)::-webkit-scrollbar-thumb {
    background: rgba(0, 63, 173, 0.4);
}

::-webkit-scrollbar-thumb:hover {
    background: #a1a9b6;
}

body:not(.page-light)::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 63, 173, 0.6);
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.animate-fade-up {
    animation: fadeUp 0.6s ease-out both;
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-description {
        max-width: 100%;
    }
    
    .hero-stats {
        margin: 0 auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .about-content-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(6, 26, 64, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 24px;
        flex-direction: column;
        gap: 16px;
        border-bottom: 1px solid var(--dark-border);
        z-index: 999;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }
    
    .hero-stats {
        gap: 16px;
    }
    
    .features-grid-white {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .features-bar-white--compact .features-grid-white {
        padding: 20px;
    }
    
    .tools-preview {
        padding: 50px 0;
    }
    
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tools-hero-banner {
        padding: 32px 24px;
    }
    
    .tools-hero-banner h1 {
        font-size: 1.5rem;
    }
    
    .tools-hero-banner p {
        font-size: 0.875rem;
    }
    
    .page-content {
        padding-top: 90px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .tools-hero-banner {
        padding: 24px 20px;
        border-radius: var(--radius-lg);
    }
    
    .tools-hero-banner h1 {
        font-size: 1.25rem;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .section-header-light {
        margin-bottom: 32px;
    }
    
    .section-header-light h2 {
        font-size: 1.5rem;
    }
}
.img-andrea {
    object-position: center 20%;
}

.about-academic-section {
    margin-bottom: 60px;
}

.about-text-content-full {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-md);
    max-width: 100%;
}

.about-text-content-full h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.about-text-content-full p {
    font-size: 1rem;
    color: #374151;
    line-height: 1.7;
    margin-bottom: 28px;
    max-width: 700px;
}

.about-text-content-full .about-features-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.about-text-content-full .about-features-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9375rem;
    color: #374151;
    font-weight: 500;
}

.about-team-section {
    padding: 60px 0 20px;
}

.team-header {
    text-align: center;
    margin-bottom: 56px;
}

.team-label {
    display: inline-block;
    text-transform: uppercase;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: #1e40af;
    background: #eff6ff;
    padding: 4px 14px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.team-header h2 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.team-subtitle {
    font-size: 1rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

.team-row {
    display: flex;
    justify-content: center;
    gap: 80px;
    row-gap: 60px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.team-row-1 {
    gap: 0;
}

.team-card-pro {
    text-align: center;
    width: 220px;
    padding-top: 0;
}

.team-avatar-wrap {
    position: relative;
    width: 160px;
    height: 160px;
    margin: 0 auto 20px;
}

/* Circle */
.team-avatar-bg {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: #f1f5f9;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transition: background 0.8s ease;
}

.team-card-pro:hover .team-avatar-bg {
    background: #dbeafe;
}

/* Person Image */
.team-avatar-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: grayscale(100%);
    transition: filter 0.8s ease;
}

.team-card-pro:hover .team-avatar-bg img {
    filter: grayscale(0%);
}

.orbit-wrapper {
    position: absolute;
    inset: 0;
    transform-origin: center center;
    transform: rotate(-15deg);
    transition: transform 1.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.team-card-pro:hover .orbit-wrapper {
    transform: rotate(-90deg);
}

.team-badge {
    position: absolute;
    right: 4px;
    bottom: 4px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    z-index: 2;
    background: #3b82f6;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
    transform: rotate(15deg);
    transition: transform 1.5s cubic-bezier(0.22, 1, 0.36, 1), background 0.6s ease, box-shadow 0.6s ease;
}

.team-badge svg {
    width: 18px;
    height: 18px;
}

.team-card-pro:hover .team-badge {
    transform: rotate(90deg);
    background: #2563eb;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4);
}

.team-info h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin-top: 0;
    margin-bottom: 4px;
}

.team-info p {
    font-size: 0.8125rem;
    color: #6b7280;
    font-weight: 500;
    line-height: 1.4;
}

@media (max-width: 768px) {
    .team-row {
        gap: 50px;
        row-gap: 44px;
        margin-bottom: 44px;
    }
    
    .team-card-pro {
        width: 180px;
    }
    
    .team-avatar-wrap {
        width: 130px;
        height: 130px;
    }
    
    .team-badge {
        width: 34px;
        height: 34px;
        right: 3px;
        bottom: 3px;
        border-width: 2px;
    }
    
    .team-badge svg {
        width: 15px;
        height: 15px;
    }
    
    .team-info h3 {
        font-size: 0.875rem;
    }
    
    .team-info p {
        font-size: 0.75rem;
    }
    
    .about-academic-section {
        margin-bottom: 30px;
    }
    
    .about-team-section {
        padding: 30px 0 10px;
    }
    
    .team-header {
        margin-bottom: 40px;
    }
}

@media (max-width: 500px) {
    .team-row {
        gap: 36px;
        row-gap: 32px;
        margin-bottom: 32px;
    }
    
    .team-card-pro {
        width: 140px;
    }
    
    .team-avatar-wrap {
        width: 100px;
        height: 100px;
    }
    
    .team-badge {
        width: 28px;
        height: 28px;
        right: 2px;
        bottom: 2px;
        border-width: 2px;
    }
    
    .team-badge svg {
        width: 12px;
        height: 12px;
    }
    
    .team-info h3 {
        font-size: 0.8125rem;
    }
    
    .team-info p {
        font-size: 0.6875rem;
    }
}

.banner-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.features-grid-about {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 32px;
}

.feature-card-about {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.feature-card-about:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
    border-color: #c7d2fe;
}

.feature-icon-about {
    width: 44px;
    height: 44px;
    background: #eff6ff;
    color: #1e40af;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    flex-shrink: 0;
}

.feature-card-about h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 6px;
}

.feature-card-about p {
    font-size: 0.8125rem;
    color: #6b7280;
    line-height: 1.5;
    margin-bottom: 16px;
    flex-grow: 1;
}

.feature-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: #2563eb;
    text-decoration: none;
    transition: color 0.2s ease;
}

.feature-link:hover {
    color: #1e3a8a;
    text-decoration: underline;
}

.about-how-section {
    margin-bottom: 60px;
}

.steps-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 28px;
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.step-number {
    width: 44px;
    height: 44px;
    background: #1e40af;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 4px;
}

.step-content p {
    font-size: 0.875rem;
    color: #6b7280;
    line-height: 1.6;
}

/* Tip Box */
.tip-box {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 28px;
    padding: 16px 20px;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: var(--radius-md);
}

.tip-box svg {
    color: #1e40af;
    flex-shrink: 0;
}

.tip-box p {
    font-size: 0.875rem;
    color: #1e3a8a;
    margin: 0;
}

.img-andrea {
    object-position: center 25%;
}

@media (max-width: 768px) {
    .features-grid-about {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .banner-buttons {
        flex-direction: column;
    }
    
    .banner-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .step-item {
        gap: 14px;
    }
    
    .step-number {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
}

@media (max-width: 500px) {
    .features-grid-about {
        grid-template-columns: 1fr;
    }
    
    .step-item {
        gap: 12px;
    }
    
    .step-number {
        width: 32px;
        height: 32px;
        font-size: 0.875rem;
    }
}

        .preview-page { 
            width: 200px; 
            height: 260px; 
            background: #ffffff; 
            border: 2px solid #e5e7eb; 
            border-radius: 8px; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            position: relative; 
            overflow: hidden; 
            transition: transform 0.4s ease; 
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }
        .preview-page embed {
            pointer-events: none;
        }