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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #ffffff;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.brand-icon {
    width: 32px;
    height: 32px;
    color: #2563eb;
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 600;
    color: #111827;
}

.nav-menu-desktop {
    display: none;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    background: none;
    border: none;
    color: #374151;
    cursor: pointer;
    font-size: 1rem;
    transition: color 0.2s;
}

.nav-link:hover {
    color: #2563eb;
}

.nav-btn {
    background: #2563eb;
    color: white;
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 9999px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.2s;
}

.nav-btn:hover {
    background: #1d4ed8;
}

.mobile-menu-btn {
    display: block;
    background: none;
    border: none;
    color: #374151;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem 0;
    border-top: 1px solid #e5e7eb;
}

.mobile-menu.active {
    display: flex;
}

.mobile-link {
    background: none;
    border: none;
    color: #374151;
    cursor: pointer;
    font-size: 1rem;
    text-align: left;
    transition: color 0.2s;
}

.mobile-link:hover {
    color: #2563eb;
}

.mobile-btn {
    background: #2563eb;
    color: white;
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 9999px;
    cursor: pointer;
    font-size: 1rem;
}

@media (min-width: 768px) {
    .nav-menu-desktop {
        display: flex;
    }

    .mobile-menu-btn {
        display: none;
    }
}

/* Hero Section */
.hero {
    position: relative;
    padding-top: 6rem;
    padding-bottom: 5rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(30, 58, 138, 0.9), rgba(88, 28, 135, 0.8));
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.hero-grid {
    display: grid;
    gap: 3rem;
    align-items: center;
}

.hero-text {
    color: white;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: #bfdbfe;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
}

.hero-icon {
    width: 24px;
    height: 24px;
    color: #93c5fd;
}

.hero-btn {
    background: white;
    color: #2563eb;
    border: none;
    padding: 1rem 2rem;
    border-radius: 9999px;
    font-size: 1.125rem;
    cursor: pointer;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    transition: all 0.2s;
}

.hero-btn:hover {
    background: #eff6ff;
    transform: scale(1.05);
}

.hero-availability {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: #bfdbfe;
}

.hero-image {
    display: none;
}

.hero-phone-image {
    border-radius: 1.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    width: 100%;
    height: auto;
}

.wave-separator {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
}

.wave-separator svg {
    width: 100%;
    display: block;
}

@media (min-width: 768px) {
    .hero-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-title {
        font-size: 3.75rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }

    .hero-image {
        display: block;
    }
}

/* Features Section */
.features-section {
    padding: 5rem 0;
    background: #f9fafb;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #111827;
}

.section-subtitle {
    font-size: 1.25rem;
    color: #4b5563;
    max-width: 48rem;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
}

.feature-card {
    background: white;
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.2s;
}

.feature-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.feature-icon i,
.feature-icon svg {
    width: 1.75rem;
    height: 1.75rem;
    color: white;
}

.bg-blue { background: #3b82f6; }
.bg-purple { background: #a855f7; }
.bg-pink { background: #ec4899; }
.bg-yellow { background: #eab308; }
.bg-green { background: #22c55e; }
.bg-indigo { background: #6366f1; }
.bg-red { background: #ef4444; }
.bg-orange { background: #f97316; }

.feature-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: #111827;
}

.feature-description {
    color: #4b5563;
    line-height: 1.6;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-title {
        font-size: 3rem;
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* How It Works Section */
.how-it-works-section {
    padding: 5rem 0;
    background: white;
}

.steps-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
}

.step-card {
    position: relative;
}

.step-number {
    position: absolute;
    top: -1rem;
    left: -1rem;
    width: 3rem;
    height: 3rem;
    background: #2563eb;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 600;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
    z-index: 10;
}

.step-content {
    background: #f9fafb;
    padding: 2rem;
    border-radius: 1rem;
    border: 2px solid #e5e7eb;
    height: 100%;
    transition: border-color 0.2s;
}

.step-card:hover .step-content {
    border-color: #60a5fa;
}

.step-icon {
    width: 2.5rem;
    height: 2.5rem;
    color: #2563eb;
    margin-bottom: 1rem;
}

.step-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: #111827;
}

.step-description {
    color: #4b5563;
    line-height: 1.6;
}

@media (min-width: 768px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Footer */
.footer {
    background: #111827;
    color: white;
    padding: 3rem 0;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    text-align: center;
}

.footer-text {
    color: #9ca3af;
}

.footer-subtext {
    color: #6b7280;
    margin-top: 0.5rem;
    font-size: 0.875rem;
}
/* New Hero */
.hero-kairos {
    padding-top: 8rem;
    padding-bottom: 4rem;
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.10), transparent 35%),
        radial-gradient(circle at bottom right, rgba(168, 85, 247, 0.12), transparent 30%),
        linear-gradient(180deg, #f8fbff 0%, #eef4ff 100%);
}

.hero-grid-kairos {
    grid-template-columns: 1fr;
    align-items: center;
    gap: 3rem;
}

.hero-text-kairos {
    color: #111827;
    max-width: 640px;
}

.hero-badge {
    display: inline-block;
    background: #dbeafe;
    color: #1d4ed8;
    padding: 0.4rem 0.9rem;
    border-radius: 9999px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.hero-title-kairos {
    color: #111827;
    font-size: 3rem;
    margin-bottom: 1.25rem;
    line-height: 1.1;
}

.hero-subtitle-kairos {
    color: #4b5563;
    font-size: 1.15rem;
    margin-bottom: 1.5rem;
    max-width: 58ch;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.75rem;
}

.hero-btn-secondary {
    background: transparent;
    color: #2563eb;
    border: 1px solid #bfdbfe;
}

.hero-btn-secondary:hover {
    background: #eff6ff;
}

.hero-features-kairos {
    margin-bottom: 0;
}

.hero-features-kairos .hero-feature-item {
    color: #374151;
    font-size: 1rem;
}

.hero-visual {
    display: flex;
    justify-content: center;
}

.hero-visual-card {
    background: white;
    border-radius: 1.5rem;
    padding: 1rem;
    box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.18);
    border: 1px solid #e5e7eb;
    width: 100%;
    max-width: 760px;
}

.hero-map-card {
    transform: rotate(-1.5deg);
}

.hero-visual-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 1rem;
}

/* Intro section */
.intro-section {
    padding: 2rem 0 5rem;
    background: #ffffff;
}

.intro-card {
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    border: 1px solid #e5e7eb;
    border-radius: 1.5rem;
    padding: 2rem;
    box-shadow: 0 10px 25px -15px rgba(15, 23, 42, 0.15);
}

.section-header-left {
    text-align: left;
    margin-bottom: 2rem;
}

.intro-content {
    display: grid;
    gap: 1rem;
    max-width: 920px;
}

.intro-text {
    color: #4b5563;
    font-size: 1.08rem;
    line-height: 1.8;
}

.intro-text-strong {
    color: #111827;
    font-weight: 500;
}
/* Prototype Section */
.prototype-section {
    padding: 0 0 5rem;
    background: #ffffff;
}

.prototype-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
}

.prototype-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 1.25rem;
    overflow: hidden;
    box-shadow: 0 15px 30px -20px rgba(15, 23, 42, 0.18);
    max-width: 420px;
    width: 100%;
    margin: 0 auto;
}

.prototype-card-wide {
    max-width: 950px;
}

.prototype-image-wrap {
    padding: 1rem;
    background: #f8fafc;
    display: flex;
    justify-content: center;
    align-items: center;
}

.prototype-card-wide .prototype-image-wrap {
    padding: 1.25rem;
}

.prototype-image {
    width: auto;
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 0.75rem;
}

.prototype-card-wide .prototype-image {
    max-width: 780px;
}

.prototype-card:not(.prototype-card-wide) .prototype-image {
    max-width: 240px;
}

.prototype-card-content {
    padding: 1.25rem 1.25rem 1.5rem;
}

.prototype-title {
    font-size: 1.2rem;
    color: #111827;
    margin-bottom: 0.5rem;
}

.prototype-description {
    color: #4b5563;
    line-height: 1.7;
}

@media (min-width: 768px) {
    .prototype-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .prototype-card-wide {
        grid-column: 1 / -1;
    }
}