/* 
 * SuperIntel Innovation - Responsive Stylesheet
 * Mobile-first responsive design
 */

/* Tablet Styles (768px and down) */
@media screen and (max-width: 768px) {
    /* Navigation */
    .nav-links {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: white;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 2rem;
        transition: left var(--transition-normal);
        box-shadow: var(--shadow-medium);
        gap: 1rem;
    }

        .nav-links.active {
            left: 0;
        }

        .nav-links li {
            width: 100%;
            text-align: center;
        }

            .nav-links li a {
                display: block;
                padding: 1rem;
                font-size: 1.1rem;
                border-bottom: 1px solid var(--border-light);
                width: 100%;
            }

    .mobile-menu {
        display: flex;
    }

    .member-login {
        display: none;
    }

    /* Hero Section */
    .hero {
        padding: 120px 0 60px;
    }

        .hero h1 {
            font-size: 2.5rem;
        }

        .hero .tagline {
            font-size: 1.8rem;
        }

        .hero .description {
            font-size: 1rem;
        }

    /* Services Grid */
    .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .service-card {
        padding: 1.5rem;
    }

    /* Features Grid */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .feature-item {
        padding: 1.5rem;
    }

    /* Stats */
    .stats-container {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
    }

    .stat-item {
        padding: 1.5rem 1rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    /* Sections */
    .services,
    .why-choose {
        padding: 4rem 0;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .section-header p {
        font-size: 1rem;
    }
}

/* Mobile Styles (480px and down) */
@media screen and (max-width: 480px) {
    /* Container */
    .container {
        padding: 0 1rem;
    }

    /* Navigation */
    nav {
        padding: 1rem;
    }

    .logo {
        font-size: 1.3rem;
    }

        .logo i {
            font-size: 1.5rem;
        }

    /* Hero Section */
    .hero {
        padding: 100px 0 40px;
    }

    .hero-content {
        padding: 0 1rem;
    }

    .hero h1 {
        font-size: 2rem;
        line-height: 1.2;
    }

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

    .hero .description {
        font-size: 0.95rem;
    }

    .cta-button {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }

    /* Stats */
    .stats {
        padding: 3rem 0;
        margin-top: -1rem;
    }

    .stats-container {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
        padding: 0 1rem;
    }

    .stat-item {
        padding: 1rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 0.9rem;
    }

    /* Services */
    .services {
        padding: 3rem 0;
    }

    .services-grid {
        padding: 0 1rem;
        gap: 1rem;
    }

    .service-card {
        padding: 1.5rem 1rem;
    }

    .service-icon {
        font-size: 2.5rem;
    }

    .service-card h3 {
        font-size: 1.3rem;
    }

    /* Features */
    .why-choose {
        padding: 3rem 0;
    }

    .features-grid {
        padding: 0 1rem;
        gap: 1.5rem;
    }

    .feature-item {
        padding: 1rem;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .feature-item h3 {
        font-size: 1.1rem;
    }

    .feature-item p {
        font-size: 0.9rem;
    }

    /* Footer */
    .footer {
        padding: 2rem 0 1rem;
    }

    .footer-content {
        padding: 0 1rem;
    }

    .footer-section h3 {
        font-size: 1.1rem;
    }

    .social-links a {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }

    /* Section Headers */
    .section-header {
        margin-bottom: 2rem;
        padding: 0 1rem;
    }

        .section-header h2 {
            font-size: 1.8rem;
        }

        .section-header p {
            font-size: 0.95rem;
        }

    /* Cards */
    .card {
        margin-bottom: 1rem;
    }

    .card-header,
    .card-body,
    .card-footer {
        padding: 1rem;
    }

    /* Forms */
    .form-control {
        padding: 0.7rem;
        font-size: 0.95rem;
    }

    .btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.95rem;
    }
}

/* Extra Small Mobile (360px and down) */
@media screen and (max-width: 360px) {
    /* Hero */
    .hero h1 {
        font-size: 1.8rem;
    }

    .hero .tagline {
        font-size: 1.3rem;
    }

    /* Stats */
    .stats-container {
        grid-template-columns: 1fr;
    }

    /* Navigation */
    .logo {
        font-size: 1.2rem;
    }

        .logo i {
            font-size: 1.3rem;
        }

    /* Service Cards */
    .service-card h3 {
        font-size: 1.2rem;
    }

    .service-card p {
        font-size: 0.9rem;
    }
}

/* Large Desktop Styles (1200px and up) */
@media screen and (min-width: 1200px) {
    /* Container can be larger */
    :root {
        --max-width: 1400px;
    }

    /* Hero */
    .hero h1 {
        font-size: 4rem;
    }

    .hero .tagline {
        font-size: 3rem;
    }

    .hero .description {
        font-size: 1.2rem;
    }

    /* Services Grid */
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Features Grid */
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Stats */
    .stats-container {
        grid-template-columns: repeat(3, 1fr);
        gap: 3rem;
    }
}

/* Ultra Wide Styles (1600px and up) */
@media screen and (min-width: 1600px) {
    :root {
        --max-width: 1600px;
    }

    /* Hero */
    .hero {
        padding: 160px 0 100px;
    }

    /* Sections */
    .services,
    .why-choose {
        padding: 8rem 0;
    }
}

/* High DPI / Retina Displays */
@media only screen and (-webkit-min-device-pixel-ratio: 2), only screen and (min--moz-device-pixel-ratio: 2), only screen and (-o-min-device-pixel-ratio: 2/1), only screen and (min-device-pixel-ratio: 2), only screen and (min-resolution: 192dpi), only screen and (min-resolution: 2dppx) {
    /* Optimize for high DPI displays */
    .logo i,
    .service-icon,
    .feature-icon {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    /* This can be expanded for dark mode support */
    .card {
        background: #1a202c;
        color: white;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Landscape Mobile */
@media screen and (max-height: 500px) and (orientation: landscape) {
    .hero {
        padding: 80px 0 40px;
    }

        .hero h1 {
            font-size: 2rem;
        }

        .hero .tagline {
            font-size: 1.4rem;
        }

    .nav-links {
        height: calc(100vh - 60px);
        top: 60px;
    }
}

/* iOS Safari specific fixes */
@supports (-webkit-appearance: none) {
    .hero {
        /* Fix for iOS Safari viewport height */
        min-height: 100vh;
        min-height: -webkit-fill-available;
    }
}