/**
 * MILS Modular Footer Styles
 * Fully responsive, accessible, zero-dependency modern CSS
 */

:root {
    --mils-footer-bg: #ebebeb;
    --mils-footer-text: #555555;
    --mils-footer-title: #1a1a1a;
    --mils-footer-link-hover: #000000;
    --mils-footer-border: rgba(0, 0, 0, 0.08);
    --mils-footer-social-bg: #dedede;
    --mils-footer-social-text: #333333;
    --mils-footer-social-hover-bg: #111111;
    --mils-footer-social-hover-text: #ffffff;
}

.mils-modular-footer {
    width: 100%;
    background-color: var(--mils-footer-bg);
    color: var(--mils-footer-text);
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    padding: 56px 24px 44px;
    box-sizing: border-box;
    position: relative;
    z-index: 10;
}

.mils-footer-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
    gap: 48px;
    box-sizing: border-box;
}

/* ==========================================================================
   Brand & Socials Column
   ========================================================================== */

.mils-footer-brand {
    flex: 0 0 260px;
    max-width: 280px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
}

.mils-footer-logo-link {
    display: inline-block;
    line-height: 0;
    transition: opacity 0.2s ease;
}

.mils-footer-logo-link:hover {
    opacity: 0.85;
}

.mils-footer-logo {
    max-width: 160px;
    height: auto;
    display: block;
    object-fit: contain;
}

.mils-footer-tagline {
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--mils-footer-text);
}

.mils-footer-socials {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.mils-social-link {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: var(--mils-footer-social-bg);
    color: var(--mils-footer-social-text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none !important;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    box-sizing: border-box;
}

.mils-social-link svg {
    display: block;
    width: 18px;
    height: 18px;
    transition: transform 0.25s ease;
}

.mils-social-link:hover {
    background-color: var(--mils-footer-social-hover-bg);
    color: var(--mils-footer-social-hover-text);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.mils-social-link:hover svg {
    transform: scale(1.08);
}

/* ==========================================================================
   Navigation Grid (Desktop)
   ========================================================================== */

.mils-footer-nav {
    flex: 1 1 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 36px;
}

.mils-footer-col {
    display: flex;
    flex-direction: column;
}

.mils-footer-heading-btn {
    background: transparent;
    border: none;
    padding: 0;
    margin: 0 0 16px 0;
    color: var(--mils-footer-title);
    font-family: inherit;
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    text-align: left;
    display: block;
    cursor: default;
    pointer-events: none;
    box-shadow: none;
}

.mils-footer-accordion-icon {
    display: none;
}

.mils-footer-col-collapse {
    display: block;
}

.mils-footer-col-inner {
    padding: 0;
}

.mils-footer-links {
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mils-footer-link-item {
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
}

.mils-footer-link {
    color: var(--mils-footer-text) !important;
    font-size: 0.925rem;
    font-weight: 400;
    text-decoration: none !important;
    display: inline-block;
    transition: color 0.2s ease, transform 0.2s ease;
    line-height: 1.4;
}

.mils-footer-link:hover {
    color: var(--mils-footer-link-hover) !important;
    font-weight: 500;
    transform: translateX(3px);
}

/* ==========================================================================
   Tablet Responsive (768px - 1024px)
   ========================================================================== */

@media screen and (min-width: 768px) and (max-width: 1024px) {
    .mils-modular-footer {
        padding: 44px 20px 36px;
    }

    .mils-footer-container {
        flex-direction: column;
        gap: 36px;
    }

    .mils-footer-brand {
        flex: 1 1 100%;
        max-width: 100%;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding-bottom: 20px;
        border-bottom: 1px solid var(--mils-footer-border);
    }

    .mils-footer-socials {
        margin-top: 0;
    }

    .mils-footer-nav {
        width: 100%;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }

    .mils-footer-heading-btn {
        font-size: 0.975rem;
        margin-bottom: 14px;
    }

    .mils-footer-link {
        font-size: 0.875rem;
    }
}

/* ==========================================================================
   Mobile Accordion (< 768px)
   ========================================================================== */

@media screen and (max-width: 767px) {
    .mils-modular-footer {
        padding: 36px 16px 28px;
    }

    .mils-footer-container {
        flex-direction: column;
        gap: 24px;
    }

    .mils-footer-brand {
        flex: 1 1 100%;
        max-width: 100%;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        padding-bottom: 8px;
    }

    .mils-footer-logo {
        max-width: 140px;
    }

    .mils-footer-socials {
        gap: 10px;
    }

    .mils-social-link {
        width: 36px;
        height: 36px;
    }

    .mils-footer-nav {
        width: 100%;
        display: flex;
        flex-direction: column;
        gap: 0;
        border-top: 1px solid var(--mils-footer-border);
    }

    .mils-footer-col {
        border-bottom: 1px solid var(--mils-footer-border);
    }

    .mils-footer-heading-btn {
        pointer-events: auto;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: 16px 0;
        margin: 0;
        user-select: none;
        -webkit-tap-highlight-color: transparent;
        transition: color 0.2s ease;
    }

    .mils-footer-heading-btn:active {
        opacity: 0.7;
    }

    .mils-footer-heading-title {
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--mils-footer-title);
    }

    .mils-footer-accordion-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: #777777;
        transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), color 0.2s ease;
    }

    .mils-footer-accordion-icon svg {
        display: block;
        width: 18px;
        height: 18px;
    }

    /* Accordion Toggle via CSS Grid animation */
    .mils-footer-col-collapse {
        display: grid;
        grid-template-rows: 0fr;
        transition: grid-template-rows 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        overflow: hidden;
    }

    .mils-footer-col-inner {
        min-height: 0;
        overflow: hidden;
        padding-bottom: 0;
        transition: padding 0.3s ease;
    }

    .mils-footer-col.is-open .mils-footer-col-collapse {
        grid-template-rows: 1fr;
    }

    .mils-footer-col.is-open .mils-footer-col-inner {
        padding-bottom: 16px;
    }

    .mils-footer-col.is-open .mils-footer-accordion-icon {
        transform: rotate(180deg);
        color: var(--mils-footer-title);
    }

    .mils-footer-links {
        gap: 10px;
    }

    .mils-footer-link {
        font-size: 0.9rem;
        padding: 4px 0;
        display: block;
    }
}