/* ==========================================================================
   ATHOS DEV - Stylesheet
   ========================================================================== */

/* Design Tokens & Variables */
:root {
    --bg-primary: #0a0d16;
    --bg-secondary: #101524;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(0, 242, 254, 0.15);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Tech Accent Colors */
    --color-blue: #0082ff;
    --color-cyan: #00f2fe;
    --color-purple: #a855f7;
    --color-orange: #f97316;
    
    /* Gradients */
    --accent-gradient: linear-gradient(135deg, #00f2fe 0%, #0082ff 100%);
    --accent-gradient-purple: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    --dark-gradient: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    
    /* System Styling */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --container-width: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-primary);
}

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

/* Background Glowing Orbs */
.glow-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    mix-blend-mode: screen;
    animation: orbFloat 20s infinite alternate ease-in-out;
}

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

.orb-2 {
    bottom: -10%;
    left: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--color-purple) 0%, transparent 70%);
    animation-delay: -5s;
}

.orb-3 {
    top: 40%;
    left: 30%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, var(--color-blue) 0%, transparent 70%);
    animation-duration: 25s;
}

@keyframes orbFloat {
    0% {
        transform: translate(0, 0) scale(1);
    }
    100% {
        transform: translate(5%, 10%) scale(1.1);
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

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

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

.grid {
    display: grid;
    gap: 24px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}

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

.badge-text {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-primary);
}

/* Text Formatting */
.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-weight: 600;
    padding: 14px 28px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition-smooth);
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #000;
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 242, 254, 0.4);
    filter: brightness(1.1);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--text-primary);
    transform: translateY(-2px);
}

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

/* Header & Nav Styling */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(10, 13, 22, 0.7);
    backdrop-filter: blur(12px) saturate(185%);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    display: flex;
    align-items: center;
    transition: var(--transition-fast);
}

.header.scrolled {
    height: 70px;
    background: rgba(10, 13, 22, 0.9);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
}

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

.logo-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-cyan);
    box-shadow: 0 0 8px var(--color-cyan);
}

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

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 6px 0;
}

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

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 10px;
}

.nav-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 8px 18px;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
}

.nav-btn:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 80px;
    position: relative;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
}

.hero-content {
    max-width: 680px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

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

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

/* Hero Tech Visual */
.hero-visual {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-card-wrapper {
    position: relative;
    width: 100%;
    max-width: 420px;
}

.visual-card {
    background: rgba(15, 22, 42, 0.7);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--border-glow) 0px 4px 40px, 0 30px 60px rgba(0,0,0,0.4);
    backdrop-filter: blur(16px);
    overflow: hidden;
    width: 100%;
    transition: var(--transition-smooth);
}

.visual-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 242, 254, 0.3);
}

.card-header {
    background: rgba(255, 255, 255, 0.03);
    padding: 12px 18px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 6px;
}

.card-header .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

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

.card-title {
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-left: 8px;
}

.card-body {
    padding: 24px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.85rem;
    color: #e2e8f0;
    overflow-x: auto;
}

.code-keyword { color: #f472b6; }
.code-comment { color: var(--text-muted); }
.code-string { color: #34d399; }
.code-number { color: #fb923c; }

/* Visual Floating Badges */
.visual-badge {
    position: absolute;
    background: rgba(16, 21, 36, 0.8);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    padding: 12px 18px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    z-index: 10;
    animation: float 6s infinite ease-in-out;
}

.visual-badge i {
    font-size: 1.3rem;
    padding: 8px;
    border-radius: 8px;
}

.data-badge {
    bottom: -20px;
    left: -30px;
    animation-delay: -2s;
}

.data-badge i {
    background: rgba(0, 242, 254, 0.1);
    color: var(--color-cyan);
}

.ai-badge {
    top: -20px;
    right: -25px;
}

.ai-badge i {
    background: rgba(168, 85, 247, 0.1);
    color: var(--color-purple);
}

.badge-num {
    display: block;
    font-size: 1rem;
    font-weight: 700;
}

.badge-lbl {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

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

/* Features Bar */
.features-bar {
    margin-top: 80px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.01);
    padding: 24px 0;
}

.features-bar-container {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 24px;
}

.feature-bar-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.feature-bar-item i {
    color: var(--color-cyan);
    font-size: 1.2rem;
}

/* Premium Card Styles */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 32px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(800px circle at var(--mouse-x, 0) var(--mouse-y, 0), rgba(255,255,255,0.04), transparent 40%);
    z-index: 1;
    pointer-events: none;
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

/* Expertises Section */
.expertises-section {
    padding: 100px 0;
    background-color: var(--bg-secondary);
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 60px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.expertise-card {
    z-index: 2;
}

.card-icon-wrapper {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.icon-blue { background: rgba(0, 130, 255, 0.1); color: var(--color-blue); }
.icon-teal { background: rgba(0, 242, 254, 0.1); color: var(--color-cyan); }
.icon-purple { background: rgba(168, 85, 247, 0.1); color: var(--color-purple); }
.icon-orange { background: rgba(249, 115, 22, 0.1); color: var(--color-orange); }

.card-heading {
    font-size: 1.25rem;
    margin-bottom: 14px;
}

.card-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
    flex-grow: 1;
}

.card-list {
    list-style: none;
    font-size: 0.9rem;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
}

.card-list li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-list li i {
    color: var(--color-cyan);
    font-size: 0.8rem;
}

/* About Section */
.about-section {
    padding: 100px 0;
}

.about-container {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
    align-items: center;
}

.about-content {
    max-width: 600px;
}

.about-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.about-description {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 20px;
}

.about-strengths {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 32px;
}

.strength-item {
    display: flex;
    gap: 16px;
}

.strength-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    color: var(--color-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.strength-item h4 {
    font-size: 1.05rem;
    margin-bottom: 4px;
}

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

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 30px;
    text-align: center;
    backdrop-filter: blur(8px);
    transition: var(--transition-fast);
}

.stat-card:hover {
    border-color: rgba(0, 242, 254, 0.2);
    background: rgba(255,255,255,0.04);
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 2.2rem;
    line-height: 1;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Onboarding & Contact Section */
.contact-section {
    padding: 100px 0;
    background-color: var(--bg-secondary);
}

.contact-container {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 48px;
    align-items: start;
}

.contact-info {
    max-width: 500px;
}

.contact-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.contact-description {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 40px;
}

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

.contact-detail-item {
    display: flex;
    gap: 16px;
    align-items: center;
}

.detail-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--color-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-detail-item h5 {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 2px;
}

.contact-detail-item p {
    font-size: 1.05rem;
    font-weight: 600;
}

/* Form Card */
.form-card {
    background: rgba(15, 22, 42, 0.5);
    backdrop-filter: blur(16px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.form-header {
    margin-bottom: 28px;
}

.form-header h4 {
    font-size: 1.4rem;
    margin-bottom: 6px;
}

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

.onboarding-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

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

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

.required {
    color: #ef4444;
}

.form-group input,
.form-group select,
.form-group textarea {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 12px 16px;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: var(--transition-fast);
    outline: none;
    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;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-cyan);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.15);
}

.form-checkbox-group {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.form-checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-cyan);
    margin-top: 3px;
    cursor: pointer;
}

.form-checkbox-group label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1.4;
}

/* Form Status Message */
.form-status {
    font-size: 0.9rem;
    padding: 12px;
    border-radius: var(--border-radius-sm);
    display: none;
    text-align: center;
    margin-top: 10px;
}

.form-status.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #10b981;
}

.form-status.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

/* Footer & Legal mentions */
.footer {
    border-top: 1px solid var(--border-color);
    padding-top: 80px;
    background-color: var(--bg-primary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 60px;
}

.footer-brand {
    max-width: 380px;
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 20px 0 24px;
}

.footer-socials {
    display: flex;
    gap: 16px;
}

.footer-socials a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.footer-socials a:hover {
    background: var(--accent-gradient);
    color: #000;
    border-color: transparent;
    transform: translateY(-2px);
}

.footer-links h4 {
    font-size: 1.05rem;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--text-primary);
    padding-left: 4px;
}

/* Footer Legal mentions container (vital for D-U-N-S / Apple Dev registration check) */
.footer-legal {
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    background-color: var(--bg-secondary);
}

.footer-legal-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.legal-info {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.legal-info p {
    margin-bottom: 8px;
}

.legal-info p:last-child {
    margin-bottom: 0;
}

.legal-info strong {
    color: var(--text-primary);
}

.footer-copyright {
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        margin-top: 20px;
    }
    
    .about-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-visual {
        order: 2;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: var(--bg-primary);
        flex-direction: column;
        gap: 32px;
        padding-top: 60px;
        transform: translateY(-100%);
        opacity: 0;
        transition: transform 0.4s ease, opacity 0.4s ease;
        z-index: 999;
    }
    
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-link.active::after {
        display: none;
    }
    
    .nav-btn {
        width: 80%;
        text-align: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .form-group-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .visual-badge.data-badge {
        left: 10px;
    }
    
    .visual-badge.ai-badge {
        right: 10px;
    }
}