/* ============================================
   Sakhi Technologies - Landing Page
   Tech & Professional Design
   ============================================ */

/* ============================================
   Variables
   ============================================ */
:root {
    /* Colors */
    --primary: #2563EB;
    --primary-dark: #1E40AF;
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;
    --background: #FFFFFF;
    --surface: #F9FAFB;
    --border: #E5E7EB;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--background);
    -webkit-font-smoothing: antialiased;
}

/* ============================================
   Container
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ============================================
   Brand Highlighting
   ============================================ */
.highlight-brand {
    background: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    position: relative;
}

/* ============================================
   Header
   ============================================ */
.header {
    background: var(--background);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.98);
    overflow: visible;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    overflow: visible;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s;
}

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

.btn-contact {
    background: var(--primary);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
}

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

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 16px;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    padding: var(--space-3xl) 0;
    text-align: center;
    background: linear-gradient(180deg, var(--surface) 0%, var(--background) 100%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: var(--space-md);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

.hero-cta {
    margin-top: var(--space-lg);
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ============================================
   Features Section
   ============================================ */
.features {
    padding: var(--space-3xl) 0;
    background: var(--background);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--space-xl);
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon-box {
    width: 56px;
    height: 56px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: var(--space-md);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   Vision Section
   ============================================ */
.vision {
    padding: var(--space-3xl) 0;
    background: var(--surface);
}

.vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.vision-card {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--space-xl);
}

.vision-icon {
    width: 56px;
    height: 56px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: var(--space-md);
}

.vision-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.vision-text {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1rem;
}

/* ============================================
   About Section
   ============================================ */
.about {
    padding: var(--space-3xl) 0;
    background: var(--surface);
}

.about-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.about-card {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: var(--space-3xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.about-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.about-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.about-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-top: var(--space-sm);
}

.about-content {
    max-width: 700px;
    margin: 0 auto;
}

.about-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-md);
    text-align: center;
}

/* Value Cards */
.value-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.value-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: var(--space-lg) var(--space-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    transition: all 0.3s;
    text-align: center;
}

.value-card:hover {
    border-color: var(--primary);
    background: var(--background);
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

.value-icon {
    font-size: 2.5rem;
    line-height: 1;
}

.value-text {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ============================================
   CTA Section
   ============================================ */
.cta {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, var(--surface) 0%, #E0E7FF 100%);
}

.cta-wrapper {
    max-width: 700px;
    margin: 0 auto;
}

.cta-card {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: var(--space-3xl);
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.cta-icon-circle {
    width: 96px;
    height: 96px;
    background: linear-gradient(135deg, var(--primary) 0%, #7C3AED 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    color: white;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.cta-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.cta-email-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, #7C3AED 100%);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.125rem;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.cta-email-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(37, 99, 235, 0.4);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: #1F2937;
  padding: var(--space-md) 0;
}

.footer-inner {
  text-align: center;      /* centers the text inside the 1200px container */
}

.footer-inner p {
  margin: 0;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .nav {
        gap: var(--space-md);
    }

    .nav-link {
        font-size: 14px;
    }

    .hero,
    .features,
    .vision,
    .about,
    .cta {
        padding: var(--space-2xl) 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .vision-grid {
        grid-template-columns: 1fr;
    }

    .value-cards {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .about-card {
        padding: var(--space-xl);
    }

    .cta-card {
        padding: var(--space-xl);
    }

    .cta-icon-circle {
        width: 80px;
        height: 80px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }

    .header-content {
        padding: 0.5rem 0;
    }

    .logo-img {
        height: 70px;
    }

    .nav {
        gap: var(--space-sm);
    }

    .nav-link {
        font-size: 13px;
    }

    .btn-contact {
        padding: 0.375rem 1rem;
        font-size: 13px;
    }

    .hero {
        padding: var(--space-xl) 0;
    }

    .feature-card,
    .vision-card {
        padding: var(--space-lg);
    }

    .about-card {
        padding: var(--space-lg);
    }

}

/* ============================================
   Accessibility
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

a:focus,
button:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}