/*
 * Responsive Styles
 * Mobile-first approach with breakpoints for tablet and desktop
 */

/* ========================================
   TABLET (768px and up)
   ======================================== */
@media (max-width: 1024px) {
    :root {
        --font-size-6xl: 3rem;
        /* 48px */
        --font-size-5xl: 2.5rem;
        /* 40px */
        --font-size-4xl: 2rem;
        /* 32px */
    }

    .hero-title {
        font-size: var(--font-size-5xl);
    }

    .grid-cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========================================
   MOBILE (below 768px)
   ======================================== */
@media (max-width: 768px) {
    :root {
        --font-size-6xl: 2.5rem;
        /* 40px */
        --font-size-5xl: 2rem;
        /* 32px */
        --font-size-4xl: 1.75rem;
        /* 28px */
        --font-size-3xl: 1.5rem;
        /* 24px */
        --spacing-4xl: 3rem;
        /* 48px */
        --spacing-5xl: 4rem;
        /* 64px */
    }

    /* Navigation - Mobile Menu */
    .navbar-nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        gap: 0;
    }

    .navbar-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        width: 100%;
        padding: var(--spacing-md);
    }

    .navbar-toggle {
        display: flex;
    }

    /* Hero Section */
    .hero {
        min-height: 500px;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    /* Grid System */
    .grid-cols-2,
    .grid-cols-3 {
        grid-template-columns: 1fr;
    }

    /* Cards */
    .card-img {
        height: 200px;
    }

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

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   SMALL MOBILE (below 480px)
   ======================================== */
@media (max-width: 480px) {
    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }

    .section {
        padding-top: var(--spacing-2xl);
        padding-bottom: var(--spacing-2xl);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .navbar-brand {
        font-size: var(--font-size-xl);
    }
}