/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    /* Colors */
    --gradient-main: linear-gradient(80.14deg, #111827 29.02%, #3A4DAC 66.02%, #506BF1 84.01%, #FFFFFF 106.19%);
    --color-white: #FFFFFF;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #1E1E1E;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-900: #111827;
    --color-black: #111827;
    --color-primary: #3B62EA;
    --color-primary-dark: #2952D9;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --container-max-width: 87vw;
    --container-padding: 20px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    
    /* Header */
    --header-height: 90px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-gray-900);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ============================================
   Utility Classes
   ============================================ */
.container {
    max-width: 80vw;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--color-white);
    color: var(--color-white);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
}

.btn-full {
    width: 100%;
}

/* ============================================
   Header
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--color-white);
    height: var(--header-height);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.logo {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--color-black);
}

.logo-text {
    font-size: 38px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: 0;
    color: var(--color-black);
}

.logo-subtext {
    font-size: 22px;
    font-weight: 400;
    line-height: 1;
    color: var(--color-gray-900);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-menu a {
    font-size: 18px;
    font-weight: 400;
    line-height: 1;
    color: var(--color-gray-900);
    transition: color var(--transition-fast);
}

.nav-menu a:hover {
    color: var(--color-primary);
}

.btn-participant {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 0;
    background-color: transparent;
    color: #4D5759;
    font-size: 18px;
    font-weight: 700;
    border-radius: 0;
    transition: all var(--transition-fast);
}

.btn-participant:hover {
    /* opacity: 0.88; */
}

.participant-icon {
    width: 28px;
    height: 28px;
    object-fit: contain;
    flex-shrink: 0;
}

.participant-icon-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background-color: #B0ED52;
    border-radius: 10px 0 10px 10px;
    flex-shrink: 0;
}

.burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    gap: 5px;
}

.burger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-gray-900);
    transition: all var(--transition-fast);
}

.burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.burger.active span:nth-child(2) {
    opacity: 0;
}

.burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-white);
    padding: 40px 20px;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    z-index: 999;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}
.mobile-menu-list li {
    text-align: center
    ;
}

.mobile-menu-list a {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-gray-900);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: calc(100vh);
    background: var(--gradient-main);
    padding-top: var(--header-height);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    border-radius: 0 0 20px 20px;
}

.hero .container{    width: 50vw;
    margin: 0 auto 0 10vw;}
.hero-content {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 36px;
    width: 100%;
    padding-top: 40px;
}

.hero-text {
flex: 0 0 100%;
    max-width: 100%;
    padding-top: 12px;
}

.hero-title {
    margin-bottom: 32px;
}

.hero-title-main {
    display: block;
    font-size: 96px;
    font-weight: 800;
    line-height: 1;
    color: var(--color-white);
    letter-spacing: -0.02em;
}

.hero-title-sub {
    display: block;
    font-size: 42px;
    font-weight: 400;
    color: var(--color-white);
    opacity: 0.9;
    padding-left: 100px;
    margin-top: 4px;
}

.hero-subtitle {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.15;
    color: var(--color-white);
    margin-bottom: 32px;
}

.hero-description {
    font-size: 22px;
    line-height: 1.6;
    color: var(--color-white);
    opacity: 0.9;
    margin-bottom: 48px;
    max-width: 650px;
}

.hero-buttons {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    padding: 24px 64px;
    font-size: 20px;
    font-weight: 600;
    border-radius: 50px;
    min-width: 265px;
}

.hero-image {
    flex: 0 0 40%;
    max-width: 40%;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    position: absolute;
    right: 6%;
    bottom: 0;
}

.phone-mockup {
    width: auto;
    max-width: none;
    height: min(calc(100% - var(--header-height) - 40px), 820px);
    max-height: 820px;
    object-fit: contain;
    object-position: bottom center;
    filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.3));
}

/* ============================================
   Services Section
   ============================================ */
.services {
    padding: 80px 0;
    background-color: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.service-card {
    background-color: var(--color-gray-900);
    color: var(--color-white);
    padding: 32px;
    border-radius: var(--radius-lg);
    transition: transform var(--transition-fast);
}

.service-card:hover {
    transform: translateY(-4px);
}

.service-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    /* background-color: rgba(255, 255, 255, 0.1); */
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    color: var(--color-white);
}

.service-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.3;
}

.service-description {
    font-size: 14px;
    line-height: 1.5;
    opacity: 0.8;
}

.integration-block {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 32px;
    background-color: var(--color-gray-100);
    border-radius: var(--radius-lg);
    margin-bottom: 40px;
}

.integration-icon {
    flex-shrink: 0;
}

.integration-text {
    font-size: 18px;
    font-weight: 900;
    line-height: 1.4;
    color: var(--color-gray-900);
}

.tech-stack {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.tech-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-600);
}

.tech-tags {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.tech-tag {
    padding: 8px 20px;
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
    transition: all var(--transition-fast);
}


/* ============================================
   Features Section
   ============================================ */
.features {
    padding: 12px 0;
    background-color: var(--color-white);
    color: var(--color-white);
}

.features .container {
    background-color: var(--color-gray-900);
    padding: 60px;
    border-radius: 30px;
}

.features-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.features-text {
    flex: 0 0 50%;
    max-width: 50%;
    position: relative;
    padding-left: 50px;
}

.features-text::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    border-radius: 50%;
    z-index: 2;
}

.features-text::after {
    content: '';
    position: absolute;
    left: 15px;
        top: 41px;;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary) 0%, rgba(80, 106, 241, 0.3) 100%);
    z-index: 1;
}

.features-text .section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 32px;
    line-height: 1.2;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.feature-list-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    font-size: 16px;
    line-height: 1.5;
    position: relative;
    padding-left: 36px;
}

.feature-list-item::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    border-radius: 50%;
    color: var(--color-white);
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.features-image {
    flex: 0 0 45%;
    max-width: 45%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.features-mockup {
    width: 100%;
    height: auto;
    max-width: 400px;
    border-radius: var(--radius-lg);
}

/* ============================================
   Architecture Section
   ============================================ */
.architecture {
    padding: 12px 0;
    background-color: var(--color-white);
    color: var(--color-white);
}

.architecture .container {
    background-color: var(--color-gray-900);
    padding: 60px;
    border-radius: 30px;
}

.architecture-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.architecture-text {
    flex: 0 0 50%;
    max-width: 50%;
    position: relative;
    padding-left: 50px;
}

.architecture-text::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    border-radius: 50%;
    z-index: 2;
}

.architecture-text::after {
    content: '';
    position: absolute;
    left: 15px;
        top: 41px;;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary) 0%, rgba(80, 106, 241, 0.3) 100%);
    z-index: 1;
}

.architecture-text .section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 32px;
    line-height: 1.2;
}

.architecture-image {
    flex: 0 0 45%;
    max-width: 45%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.architecture-diagram {
    width: 100%;
    height: auto;
    max-width: 400px;
    border-radius: var(--radius-lg);
}

/* ============================================
   About Section
   ============================================ */
.about {
    padding: 40px 0;
    background-color: var(--color-white);
    color: var(--color-gray-900);
}

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

.about-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.about-subtitle {
    font-size: 18px;
    line-height: 1.5;
    opacity: 0.85;
    max-width: 600px;
    margin: 0 auto;
}

.about-content {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    margin-bottom: 60px;
}

.about-image {
    flex: 0 0 55%;
    max-width: 55%;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    aspect-ratio: 16 / 7;
}

.about-photo {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
    object-fit: cover;
    display: block;
}

.about-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px 30px 0 30px;
    background: linear-gradient(180deg, transparent 0%, rgba(17, 24, 39, 0.85) 100%);
    text-align:  end;
}

.about-image-text {
    font-size: 28px;
    font-weight: 400;
    color: var(--color-white);
}

.about-image-text strong {
    font-weight: 800;
    font-size: larger;
}

.about-image-text span {
    font-size: smaller; 
}
.about-text {
    flex: 0 0 40%;
    max-width: 40%;
}

.about-section-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.about-description {
    font-size: 16px;
    line-height: 1.6;
    opacity: 0.85;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 80px;
}

.stat-card {
    text-align: center;
    padding: 40px 24px;
    border: 2px solid var(--color-gray-100);
    border-radius: var(--radius-lg);
    background-color: var(--color-gray-100);
    transition: border-color var(--transition-fast);
    transition: transform var(--transition-fast);
}

.stat-card:hover {
    /* border-color: var(--color-primary); */
    transform: translateY(-4px);
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
    line-height: 1;
}

.stat-number::after {
    content: '+';
}

.stat-label {
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-gray-600);
}

.stat-label strong {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 4px;
}

.about-activities {
    margin-bottom: 60px;
}

.activities-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
    text-align: center;
}

.activities-description {
    font-size: 14px;
    line-height: 1.6;
    opacity: 0.75;
    margin-bottom: 16px;
}

.about-directions {
    background-color: var(--color-gray-900);
    color: var(--color-white);
    padding: 60px;
    border-radius: 30px;
    position: relative;
    overflow: visible;
}

.directions-content {
    display: flex;
    align-items: flex-start;
    gap: 60px;
}

.directions-text {
    flex: 0 0 55%;
    max-width: 55%;
    position: relative;
    padding-left: 50px;
}

.directions-text::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    border-radius: 50%;
    z-index: 2;
}

.directions-text::after {
    content: '';
    position: absolute;
    left: 15px;
    top: 42px;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary) 0%, rgba(80, 106, 241, 0.3) 100%);
    z-index: 1;
}

.directions-image {
    flex: 0 0 40%;
    max-width: 40%;
    position: absolute;
    right: -56px;
    top: 29%;
    transform: translateY(-50%);
    max-height: 40%;
}

.directions-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    /* box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2); */
}

.directions-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 28px;
    line-height: 1.2;
}

.directions-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.direction-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    font-size: 18px;
    line-height: 1.5;
    position: relative;
    padding-left: 36px;
}

.direction-item::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    border-radius: 50%;
    color: var(--color-white);
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.pricing {
  padding: 24px 0 12px 0;
    background-color: var(--color-white);
}

.pricing .container {
    background-color: var(--color-gray-900);
    padding: 60px;
    border-radius: 30px;
}

.pricing-card {
    color: var(--color-white);
}

.pricing-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
}

.pricing-text {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
    opacity: 0.95;
}

.pricing-text:last-of-type {
    margin-bottom: 40px;
}

.btn-outline-light {
    background-color: transparent;
    border: 2px solid var(--color-white);
    color: var(--color-white);
    padding: 24px 64px;
    font-size: 20px;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 40px;
    min-width: 220px;
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.pricing-disclaimer {
    font-size: 13px;
    line-height: 1.5;
    opacity: 0.75;
    color: var(--color-white);
}
.prompter {
    padding: 80px 0 60px;
    background-color: var(--color-gray-900);
    color: var(--color-white);
    overflow: hidden;
    border-radius: 20px;
}

.prompter-content {
    display: flex;
    align-items: flex-end;
    gap: 60px;
    margin-bottom: 60px;
    position: relative;
}

.prompter-image {
    flex: 0 0 45%;
    max-width: 45%;
    position: relative;
    z-index: 1;
}

.prompter-image::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    border-radius: 50%;
    background: linear-gradient(90deg, #243166 0%, #506AEF 71.42%);
    opacity: 0.35;
    filter: blur(60px);
    z-index: -1;
    pointer-events: none;
}

.prompter-visual {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
}

.prompter-text {
    flex: 1;
    text-align: center;

    margin-bottom: 1.5rem;

}

.prompter-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 32px;
    line-height: 1.2;
}

.prompter-description {
    font-size: 18px;
    line-height: 1.7;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

.prompter-subtitle {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
}

.prompter-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.feature-item {
    padding: 24px 20px;
    border: 2px solid rgba(255, 255, 255, 0.25);
    border-radius: 9999px;
    font-size: 16px;
    line-height: 1.4;
    text-align: center;
    color: var(--color-white);
    background-color: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 90px;
    transition: transform var(--transition-fast);
    cursor: default;
}

.feature-item:hover {
    transform: translateY(-4px);
}

/* Remove old unused wrapper/line styles */
.prompter-features-wrapper {
    display: none;
}

.prompter-features-line {
    display: none;
}

/* ============================================
   Sections Base Styles
   ============================================ */
section {
    padding: 80px 0;
}

/* ============================================
   Modal
   ============================================ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    background-color: var(--color-gray-900);
    color: var(--color-white);
    padding: 48px 56px;
    border-radius: 24px;
    max-width: 720px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(20px);
    transition: transform var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 60px rgba(59, 98, 234, 0.25), 0 25px 50px rgba(0, 0, 0, 0.5);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 32px;
    height: 32px;
    font-size: 28px;
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
    opacity: 0.7;
}

.modal-close:hover {
    opacity: 1;
}

.modal-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--color-white);
}

/* Form Styles */
.honeypot {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

.form-group {
    margin-bottom: 16px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 18px 24px;
    border: none;
    border-radius: 12px;
    background-color: var(--color-white);
    color: var(--color-gray-900);
    font-size: 16px;
    transition: box-shadow var(--transition-fast);
}

.form-group input::placeholder {
    color: var(--color-gray-500);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 98, 234, 0.3);
}

/* Input Error State */
.input-error {
    box-shadow: 0 0 0 2px #ef4444 !important;
}

.error-message {
    display: block;
    color: #ef4444;
    font-size: 13px;
    margin-top: 6px;
    padding-left: 12px;
}

/* Form Messages */
.form-message {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    text-align: center;
}

.form-message--success {
    background-color: rgba(74, 222, 128, 0.15);
    color: #4ade80;
    border: 1px solid rgba(74, 222, 128, 0.3);
}

.form-message--error {
    background-color: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Button Spinner */
.btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-spinner {
    display: inline-flex;
    align-items: center;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
    border-radius: var(--radius-lg);
}

/* Checkbox */
.form-group--checkbox {
    margin-top: 20px;
    margin-bottom: 24px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.4;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '✓';
    color: var(--color-white);
    font-size: 12px;
    font-weight: 700;
}

.btn-submit {
    padding: 16px 40px;
    font-size: 16px;
    border-radius: 40px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--color-gray-900);
    color: var(--color-white);
    padding: 0;
}

.footer-logo .logo-text {
    color: var(--color-white);
}

/* Legal Section */
.legal {
    padding: 20px 0 40px;
    background-color: var(--color-white);
    color: var(--color-gray-900);
}

.legal-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 28px;
}

.legal-links {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

.legal-pill {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 40px;
    border: 2px solid var(--color-gray-900);
    color: var(--color-primary);
    background: transparent;
    text-decoration: underline;
    font-weight: 500;

}

/* Footer layout */
.footer-top {
    background-color: var(--color-gray-900);
    padding: 60px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 280px;
    gap: 24px;
    align-items: end;
}

.footer-col--left .footer-logo {
    display: flex;
    flex-direction: column;
    gap: 0;
    color: var(--color-white);
    font-weight: 700;
    font-size: 32px;
    text-decoration: none;
    line-height: 1.1;
    margin-bottom: 8px;
}

.footer-col--left .footer-logo .logo-subtext {
    font-weight: 400;
    font-size: 24px;
    color: rgba(255,255,255,0.85);
}

.footer-desc {
    margin: 16px 0;
    color: rgba(255,255,255,0.9);
}

.footer-contact,
.footer-legal-mini,
.footer-address {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin: 6px 0;
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-nav a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
}

.footer-email {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 22px;
    padding: 12px 20px;
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255,255,255,0.4);
    border-radius: 12px;
    font-weight: 500;
    font-size: 16px;
}

.footer-email-icon {
    flex-shrink: 0;
    opacity: 0.7;
}

.footer-email-text {
    user-select: all;
}

.footer-email-copy {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: rgba(255,255,255,0.5);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    transition: color 0.2s, background 0.2s;
    flex-shrink: 0;
}

.footer-email-copy:hover {
    color: var(--color-white);
    background: rgba(255,255,255,0.1);
}

.footer-email-copy.copied {
    color: #4ade80;
}

.footer-col--right {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 24px;
}

.footer-participant {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-white);
    font-size: 18px;
    font-weight: 600;
}

.back-to-top {
    width: 52px;
    height: 52px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 12px;
    border: none;
    font-size: 22px;
    cursor: pointer;
    transition: background 0.2s;
    flex-shrink: 0;
}

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

.footer-bottom {
    background-color: #000000;
    padding: 30px 0 40px;
}

.footer-copy {
    color: rgba(255,255,255,0.72);
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 12px;
}

.footer-link {
    color: #506BF1;
    text-decoration: underline;
    transition: color 0.2s;
}

.footer-link:hover {
    color: --color-primary;
}

.modal-link {
    color: #506BF1;
    text-decoration: underline;
    transition: color 0.2s;
}

.modal-link:hover {
    color: #7A9CF9;
}

/* participant icon box inside footer */
.participant-icon-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: #B0ED52;
    border-radius: 10px 0 10px 10px;
}

.participant-icon {
    width: 28px;
    height: 28px;
    object-fit: contain;
}

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: left;
    }
    .footer-col--right {
        justify-content: flex-start;
    }
}

/* ============================================
   Responsive - Small Desktop (1024-1300px)
   ============================================ */
@media (min-width: 1024px) and (max-width: 1300px) {
    .nav-menu {
        gap: 20px;
    }
    
    .nav-menu a {
        font-size: 15px;
    }
    
    .btn-participant {
        font-size: 15px;
    }
    .container {
        max-width: 100vw;
    }
}

/* ============================================
   Responsive - Tablet
   ============================================ */
@media (max-width: 1024px) {
    .nav-menu {
        display: none;
    }
    
       .mobile-menu-list .btn-participant {
        display: block;
       } 
    .btn-participant {
        display: none;
    }
    
    .burger {
        display: flex;
    }
    .hero-content {
        padding-bottom: 5vw;
    }
    
    .hero-text {
        flex: 0 0 100%;
        max-width: 100%;
    }
    .hero-image {
        display: none;
    }
    
    .hero-title-main {
        font-size: 48px;
    }
    
    .hero-subtitle {
        font-size: 28px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .prompter-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .prompter-image {
        flex: 1;
        max-width: 100%;
    }
    
    .prompter-text {
        flex: 1;
        max-width: 100%;
    }
    
    .prompter-title {
        font-size: 36px;
    }

    .prompter-features {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing .container {
        padding: 40px;
    }
    
    .pricing-title {
        font-size: 28px;
    }
    
    .pricing-text {
        font-size: 15px;
    }

    
    .features .container {
        padding: 40px;
    }

    .features-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .features-text {
        flex: 1;
        max-width: 100%;
        padding-left: 40px;
    }
    
    .features-text .section-title {
        font-size: 32px;
    }
    
    .features-image {
        flex: 1;
        max-width: 100%;
    }
    
    .features-mockup {
        max-width: 300px;
    }

    .architecture .container {
        padding: 40px;
    }
    
    .architecture-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .architecture-text {
        flex: 1;
        max-width: 100%;
        padding-left: 40px;
    }
    
    .architecture-text .section-title {
        font-size: 32px;
    }
    
    .architecture-image {
        flex: 1;
        max-width: 100%;
    }
    
    .architecture-diagram {
        max-width: 300px;
    }
    
    .about-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .about-image {
        flex: 1;
        max-width: 100%;
    }
    
    .about-text {
        flex: 1;
        max-width: 100%;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 20px;
        /* padding: 30px; */
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .stat-label {
        font-size: 14px;
    }
    
    .about-directions {
        padding: 40px;
    }
    
    .directions-title {
        font-size: 22px;
    }
    
    .direction-item {
        font-size: 14px;
    }

    .directions-image {
        display: none;
    }

}

/* ============================================
   Responsive - Mobile
   ============================================ */
@media (max-width: 768px) {
    :root {
        --header-height: 64px;
        --container-padding: 16px;
    }
    
    .directions-text {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    section {
        padding: 60px 0;
    }
    
    .modal-content {
        padding: 32px 24px;
        border-radius: 20px;
    }
    
    .modal-title {
        font-size: 24px;
        margin-bottom: 24px;
    }
    
    .form-group input {
        padding: 16px 20px;
        font-size: 15px;
        text-align: center;
    }
    
    .checkbox-label {
        font-size: 13px;
    }
    
    .btn-submit {
        width: 100%;
    }
    
    .hero {
        min-height: auto;
        
        padding: inherit;
        padding-top: 10vw;
    }
    .hero .container {
        width: 100vw;
        max-width: 98%;
        margin: 0 auto;
    }
    .hero-content {
        flex-direction: column;
        gap: 40px;
    }
        .hero-image {
        display: block;
    }
    .hero-content{        
        padding-bottom: 0;
    }
    .hero-text {
        flex: 1;
        max-width: 100%;
        text-align: center;
    }
    
    .hero-title-main {
        font-size: 48px;
    }
    
    .hero-title-sub {
        font-size: 24px;
    }
    
    .hero-subtitle {
        font-size: 24px;
    }
    
    .hero-description {
        font-size: 15px;
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-buttons .btn {
        padding: 14px 28px;
        font-size: 15px;
    }
    
    .hero-image {
        flex: 1;
        max-width: 100%;
        position: static; /* disable absolute positioning on mobile so it flows under content */
        align-items: center;
        justify-content: center;
        margin-top: 18px;
    }

    .hero-image picture {
        display: flex;
        justify-content: center;
        width: 100%;
    }

    .phone-mockup {
        max-width: none;
        width: 75%;
        height: auto;
        object-fit: contain;
    }
    
    .integration-block {
        flex-direction: column;
        text-align: center;
    }
    
    .tech-stack {
        flex-direction: column;
        /* align-items: flex-start; */
        justify-content: center;
        align-items: center;
    }
    .tech-label {
            font-weight: 900;
    font-size: larger;
    }
    
    .prompter-features {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .feature-item {
        font-size: 15px;
    }

    .prompter-title {
        font-size: 28px;
    }

    .prompter-description {
        font-size: 15px;
    }

    .prompter-subtitle {
        font-size: 24px;
    }

    .features {
        padding: 14px 0 7px 0;
    }

    .features .container {
        padding: 40px 0;
        margin: 0;
        max-width: 100%;
        border-radius: 0;
    }

    .features-text {
        padding-left: 40px;
        padding-right: 20px;
    }

    .features-text .section-title {
        font-size: 28px;
    }

    .feature-list-item {
        font-size: 15px;
    }

    .architecture {
        padding: 7px 0;   
    }
    .container {
        max-width: 95vw;
    }

    .container--full-mobile {
        max-width: 100%;
        padding: 0;
        margin: 0;
    }

    .architecture .container {
        padding: 40px 0;
        margin: 0;
        max-width: 100%;
        border-radius: 0;
    }

    .architecture-text {
        padding-left: 40px;
        padding-right: 20px;
    }

    .architecture-text .section-title {
        font-size: 28px;
    }

    .prompter {
        border-radius: 30px 30px 0 0;
    }

    .pricing {
        padding: 0;
        background-color: var(--color-gray-900);
        border-radius: 0 0 20px 20px;
    }

    .pricing .container {
        padding: 60px 20px;
        border-radius: 0 0 30px 30px;
    }

            .features .container {
        border-radius: 20px;
    }
    .architecture .container {
        border-radius: 20px;
    }   

    .features-content, .architecture-content {
        padding-left: 2rem;
         padding-right: 2rem;
        
    }
    .pricing-card, .about-activities { 
        text-align: center;
    }   
    .about-image-overlay {
        text-align: start;
        padding-left: 15px;
    }
    .services {
    padding: 40px 0;
    }
    .about-description , .about-section-title {
        text-align: center;
    }
    .stat-card {
        padding: 30px 15px;
    }

    .about-image-text {
        font-size: 20px;
    }

    .legal-links  a {
        width: 100%;
        text-align: center;
    }
    .legal {
    padding: 0px 0 40px 
    }
    .hero-title-sub {
        padding-left: 0;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: 10px 20px;
        font-size: 13px;
    }
    
    .hero-title-main {
        font-size: 36px;
    }
    
    .hero-title-sub {
        font-size: 20px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
}