/* Mobile Responsiveness Fixes for Python Deadlines */

/* =================================================================
   1. NAVBAR COLLAPSE FIX
   ================================================================= */

/* Ensure navbar toggle button is visible and properly styled */
.navbar-toggler {
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.25);
}

/* Fix navbar collapse animation */
.navbar-collapse {
    transition: height 0.35s ease;
}

.navbar-collapse.collapsing {
    position: relative;
    height: 0;
    overflow: hidden;
    transition: height 0.35s ease;
}

/* Ensure mobile menu items stack properly */
@media (max-width: 991px) {
    .navbar-collapse {
        background-color: #343a40;
        padding: 1rem;
        margin-top: 0.5rem;
        border-radius: 0.25rem;
    }

    .navbar-nav {
        margin-bottom: 1rem;
    }

    .navbar-nav .nav-link {
        padding: 0.5rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
    }

    .navbar-nav .dropdown-menu {
        position: static;
        float: none;
        width: 100%;
        margin-top: 0.125rem;
        background-color: rgba(52, 58, 64, 0.95);
    }

    /* Search form in mobile menu */
    .navbar-collapse .form-inline {
        flex-direction: column;
        align-items: stretch;
    }

    .navbar-collapse .form-inline input {
        margin-bottom: 0.5rem;
        width: 100%;
    }

    .navbar-collapse .form-inline button {
        width: 100%;
    }

    /* Language selector in mobile */
    .navbar-nav.ml-auto {
        margin-left: 0 !important;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding-top: 1rem;
    }
}

/* =================================================================
   2. CONFERENCE TIMER DISPLAY FIX
   ================================================================= */

/* Fix timer overflow on mobile */
@media (max-width: 768px) {
    .conf-timer {
        font-size: 48px !important;
        word-break: break-word;
        line-height: 1.2;
    }

    .timer, .timer-small {
        font-size: 16px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    /* Ensure timer doesn't overlap with other elements */
    #cfp-timer {
        padding: 0 15px;
        margin-bottom: 20px;
    }
}

@media (max-width: 576px) {
    .conf-timer {
        font-size: 32px !important;
    }

    .timer-small {
        font-size: 14px;
        text-align: left;
        display: block;
    }

    /* Stack timer elements vertically on very small screens */
    .deadline .timer,
    .deadline .timer-small {
        display: block;
        margin-top: 5px;
    }
}

@media (max-width: 375px) {
    .conf-timer {
        font-size: 24px !important;
    }
}

/* =================================================================
   3. MULTISELECT DROPDOWN OVERFLOW FIX
   ================================================================= */

/* Fix multiselect dropdown overflow on mobile */
.multiselect-container {
    max-height: 300px;
    overflow-y: auto;
    overflow-x: hidden;
}

@media (max-width: 768px) {
    .multiselect-container {
        position: fixed !important;
        left: 50% !important;
        transform: translateX(-50%);
        width: 90vw !important;
        max-width: 350px;
        z-index: 1050;
        box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    }

    .multiselect.dropdown-toggle {
        width: 100%;
        text-align: left;
    }

    .multiselect-container .checkbox {
        padding: 0.5rem 1rem;
    }

    .multiselect-container .checkbox label {
        display: flex;
        align-items: center;
        width: 100%;
    }

    .multiselect-container .checkbox input[type="checkbox"] {
        margin-right: 0.5rem;
    }
}

/* =================================================================
   4. CONFERENCE CARDS MOBILE LAYOUT
   ================================================================= */

@media (max-width: 576px) {
    /* Stack conference info vertically */
    .conf-row {
        flex-direction: column;
    }

    .conf-row .col-6 {
        width: 100%;
        max-width: 100%;
        flex: 0 0 100%;
    }

    /* Improve spacing between elements */
    .ConfItem {
        padding: 15px 10px;
        border-bottom: 1px solid #dee2e6;
    }

    .ConfItem hr {
        display: none;
    }

    /* Make conference title more prominent on mobile */
    .conf-title-small {
        font-size: 18px;
        font-weight: 500;
        margin-bottom: 10px;
        line-height: 1.3;
    }

    /* Better badge layout on mobile */
    .conf-sub {
        margin: 2px;
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
    }

    /* Calendar buttons on mobile */
    .calendar {
        display: flex;
        flex-wrap: wrap;
        gap: 5px;
        margin-top: 10px;
    }

    .calendar a {
        flex: 1;
        min-width: 80px;
        text-align: center;
        padding: 5px;
        background: #f8f9fa;
        border-radius: 3px;
    }
}

/* =================================================================
   5. GENERAL MOBILE IMPROVEMENTS
   ================================================================= */

/* Improve touch targets for mobile */
@media (pointer: coarse) {
    a, button, .btn, .conf-sub, .dropdown-item {
        min-height: 44px;
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .conf-sub {
        padding: 0.5rem 0.75rem;
    }
}

/* Fix horizontal scrolling issues */
@media (max-width: 768px) {
    body {
        overflow-x: hidden;
    }

    .container {
        padding-left: 15px;
        padding-right: 15px;
    }

    .row {
        margin-left: -15px;
        margin-right: -15px;
    }
}

/* Improve readability on small screens */
@media (max-width: 576px) {
    body {
        font-size: 14px;
        line-height: 1.6;
    }

    h1 {
        font-size: 24px;
        line-height: 1.3;
    }

    h2 {
        font-size: 20px;
        line-height: 1.3;
    }

    h3 {
        font-size: 18px;
        line-height: 1.3;
    }

    .meta, .deadline {
        font-size: 12px;
    }
}

/* =================================================================
   6. ACCESSIBILITY IMPROVEMENTS
   ================================================================= */

/* Skip navigation link for screen readers */
.skip-nav {
    position: absolute;
    top: -40px;
    left: 0;
    background: #343a40;
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-nav:focus {
    top: 0;
}

/* Focus styles for better keyboard navigation */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus,
.conf-sub:focus {
    outline: 2px solid #0097e6;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .conf-sub {
        border: 1px solid currentColor;
    }

    .timer {
        font-weight: bold;
    }
}

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

    .navbar-collapse {
        transition: none;
    }
}