/* ==========================================================
   MOBILE DARK MODE STYLES (Optimized for ≤768px)
   Based on the Professional Dark Theme, adapted for touch
   devices and fluid layouts.
   ========================================================== */

/* Fix horizontal overflow due to padding */
* {
    box-sizing: border-box;
}

/* Session ID Container - Mobile Optimized */
.resus-session-id-container {
    /* Fluid Mobile Widths */
    width: 92%;
    max-width: none;
    min-width: unset;
    margin: 1.5rem auto;
    /* Dark Theme Core */
    background: linear-gradient(145deg, #1a1a1a, #1e1e1e);
    padding: 1.5rem;
    border-radius: 14px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    border: 1px solid #2a2a2a;
    position: relative;
    overflow: hidden;
}

/* Accent top border (Retained from desktop) */
.resus-session-id-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    /* Reduced for mobile */
    background: linear-gradient(90deg, #F90618, #2E3192);
}

.resus-session-id-header {
    color: #ffffff;
    text-align: center;
    margin: 0 0 1.5rem 0;
    /* Reduced margin */
    font-size: 1.4rem;
    /* Fixed mobile font size */
    font-weight: 700;
    position: relative;
    padding-bottom: 0.8rem;
}

.resus-session-id-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    /* Reduced width */
    height: 2px;
    /* Reduced height */
    background: linear-gradient(90deg, #F90618, #2E3192);
    border-radius: 1px;
}

.resus-session-id-control-group {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    /* Stack vertically */
    align-items: center;
    /* Center input and buttons */
}

.resus-session-id-subheader {
    color: #e0e0e0;
    margin: 0 0 1.2rem 0;
    font-size: 1.1rem;
    /* Fixed mobile font size */
    font-weight: 600;
    text-align: center;
    width: 100%;
}

/* Text Input Styling - Mobile Optimized */
.resus-session-id-input {
    width: 100%;
    /* Take full width of max-width container below */
    max-width: 280px;
    /* Max width to keep it centered and readable */
    padding: 1rem 1.2rem;
    margin: 0 auto 1.2rem auto;
    /* Center + space below */
    background: #252525;
    border: 2px solid #3a3a3a;
    color: #ffffff;
    border-radius: 8px;
    /* Slightly smaller radius */
    text-transform: uppercase;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-sizing: border-box;
    font-weight: 500;
    letter-spacing: 1px;
    font-family: 'Courier New', monospace;
    text-align: center;
}

.resus-session-id-input:focus {
    outline: none;
    border-color: #2E3192;
    box-shadow: 0 0 0 3px rgba(46, 49, 146, 0.2);
    /* Softer shadow for mobile */
    background: #2a2a2a;
    transform: translateY(-1px);
    width: 100%;
}

.resus-session-id-input:hover {
    border-color: #4a4a4a;
}

/* Button Group - Mobile Stacked */
.resus-session-id-btn-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-top: 1.2rem;
    width: 100%;
    max-width: 280px;
    /* Max width to align with input */
}

/* Combined Create/Join Session Button - RED - Mobile Optimized */
.resus-session-id-action-btn {
    width: 100%;
    padding: 1rem 1.2rem;
    margin-bottom: 0;
    /* Handled by gap in btn-group */
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    /* Fixed mobile font size */
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.3px;
    min-height: 48px;
    /* Touch target minimum height */
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    background: linear-gradient(135deg, #F90618, #d40514);
    color: white;
    box-shadow: 0 4px 15px rgba(249, 6, 24, 0.3);
    /* Softer shadow */
}

/* Display Monitor Button - DARK BLUE - Mobile Optimized */
.resus-display-btn {
    width: 100%;
    padding: 1rem 1.2rem;
    margin-bottom: 0;
    /* Handled by gap in btn-group */
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    /* Fixed mobile font size */
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.3px;
    min-height: 48px;
    /* Touch target minimum height */
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    background: linear-gradient(135deg, #0d47a1, #08306b);
    color: white;
    box-shadow: 0 4px 15px rgba(13, 71, 161, 0.3);
}

/* Remove desktop shimmer effect on mobile */
.resus-session-id-action-btn::before,
.resus-display-btn::before {
    display: none;
}

/* Mobile Touch Effects (Active State) */
.resus-session-id-action-btn:active,
.resus-display-btn:active {
    transform: translateY(-1px);
    /* Subtle press effect */
}

/* Message Box - Mobile Optimized */
.resus-session-id-message {
    margin: 1.5rem auto 0 auto;
    padding: 1rem;
    border-radius: 6px;
    font-weight: 500;
    text-align: center;
    min-height: 20px;
    background: #252525;
    color: #e0e0e0;
    border: 1px solid #333;
    font-size: 0.9rem;
    /* Fixed mobile font size */
    width: 100%;
    max-width: 280px;
    /* Max width to align with input/buttons */
}

/* QR Section - Mobile Optimized */
.resus-session-id-qr-section {
    display: none;
    /* Fluid Mobile Widths */
    width: 92%;
    max-width: none;
    margin: 1.5rem auto;
    /* Dark Theme Core */
    background: linear-gradient(145deg, #1a1a1a, #1e1e1e);
    padding: 1.5rem;
    border-radius: 14px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    text-align: center;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    border: 1px solid #2a2a2a;
    position: relative;
    overflow: hidden;
    z-index: 5;
}

.resus-session-id-qr-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: #F90618;
}

.resus-session-id-current {
    font-size: 1.2rem;
    /* Fixed mobile font size */
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1.5rem;
}

.resus-session-id-current span {
    color: #2E3192;
    font-weight: 800;
}

.resus-session-id-qr-image {
    width: 200px;
    /* Fixed size for mobile */
    height: 200px;
    object-fit: contain;
    margin-bottom: 1.5rem;
    background-color: #ffffff;
    padding: 0.8rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid #333;
}

.resus-session-id-instructions p {
    font-size: 0.85rem;
    /* Fixed mobile font size */
    color: #b0b0b0;
    margin-top: 1rem;
    line-height: 1.5;
}

/* Section Container - Mobile Optimized */
.rm-session-container {
    /* Fluid Mobile Widths */
    width: 92%;
    max-width: none;
    min-width: unset;
    margin: 1.5rem auto;
    padding: 1.5rem;
    /* Dark Theme Core */
    background: linear-gradient(145deg, #1a1a1a, #1e1e1e);
    border-radius: 14px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
    border: 1px solid #2a2a2a;
    position: relative;
    overflow: hidden;
}

.rm-session-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #F90618, #2E3192);
}

.rm-session-container:active {
    /* Use active instead of hover on mobile */
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

/* Title - Mobile */
.rm-session-title {
    font-size: 1.4rem;
    /* Fixed mobile font size */
    color: #ffffff;
    margin-bottom: 1.2rem;
    font-weight: 700;
    position: relative;
    padding-bottom: 0.6rem;
    text-align: center;
}

.rm-session-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: linear-gradient(90deg, #F90618, #2E3192);
    border-radius: 1px;
}

/* Paragraph - Mobile */
.rm-session-text {
    font-size: 0.95rem;
    /* Fixed mobile font size */
    line-height: 1.6;
    color: #e0e0e0;
    text-align: center;
}

/* ==========================================================
   SMALL MOBILE OPTIMIZATIONS (≤480px)
   ========================================================== */
@media (max-width: 480px) {

    .resus-session-id-container,
    .resus-session-id-qr-section,
    .rm-session-container {
        width: 90%;
        margin: 1rem auto;
        padding: 1.25rem;
        border-radius: 12px;
    }

    .resus-session-id-header {
        font-size: 1.3rem;
        margin-bottom: 1.2rem;
        padding-bottom: 0.6rem;
    }

    .resus-session-id-subheader {
        font-size: 1rem;
        margin-bottom: 1rem;
    }

    .resus-session-id-input {
        max-width: 260px;
        padding: 0.9rem 1rem;
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }

    .resus-session-id-btn-group {
        max-width: 260px;
        gap: 0.8rem;
        margin-top: 1rem;
    }

    .resus-session-id-action-btn,
    .resus-display-btn {
        padding: 0.9rem 1rem;
        font-size: 0.9rem;
        min-height: 44px;
    }

    .resus-session-id-message {
        max-width: 260px;
        padding: 0.9rem;
        font-size: 0.85rem;
        margin-top: 1.2rem;
    }

    .resus-session-id-current {
        font-size: 1.1rem;
        margin-bottom: 1.2rem;
    }

    .resus-session-id-qr-image {
        width: 180px;
        height: 180px;
        padding: 0.6rem;
        margin-bottom: 1.2rem;
    }

    .rm-session-title {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }

    .rm-session-text {
        font-size: 0.9rem;
        line-height: 1.5;
    }
}

/* ==========================================================
   VERY SMALL MOBILE OPTIMIZATIONS (≤360px)
   ========================================================== */
@media (max-width: 360px) {

    .resus-session-id-container,
    .resus-session-id-qr-section,
    .rm-session-container {
        width: 88%;
        padding: 1rem;
    }

    .resus-session-id-input {
        max-width: 240px;
        padding: 0.8rem;
        font-size: 0.9rem;
    }

    .resus-session-id-btn-group {
        max-width: 240px;
    }

    .resus-session-id-action-btn,
    .resus-display-btn {
        padding: 0.8rem;
        font-size: 0.85rem;
    }

    .resus-session-id-message {
        max-width: 240px;
    }

    .resus-session-id-qr-image {
        width: 160px;
        height: 160px;
    }
}

/* ==========================================================
   ACCESSIBILITY & TOUCH OPTIMIZATIONS
   ========================================================== */

/* Focus states for dark mode accessibility */
.resus-session-id-input:focus,
.resus-session-id-action-btn:focus,
.resus-display-btn:focus {
    /* Focus outline uses the blue accent color for visibility */
    outline: 2px solid #2E3192;
    outline-offset: 1px;
}

/* Touch device optimizations (Preventing unwanted hover effects) */
@media (hover: none) and (pointer: coarse) {

    .resus-session-id-action-btn:hover,
    .resus-display-btn:hover,
    .rm-session-container:hover {
        /* Disable hover transforms on touch devices */
        transform: none;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    /* Use active state for touch feedback */
    .resus-session-id-action-btn:active,
    .resus-display-btn:active,
    .rm-session-container:active {
        transform: translateY(-1px);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    }

    .resus-session-id-input:hover {
        border-color: #3a3a3a;
    }
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {

    .resus-session-id-input,
    .resus-session-id-action-btn,
    .resus-display-btn,
    .rm-session-container,
    .resus-session-id-message {
        transition: none !important;
    }

    .resus-session-id-action-btn:active,
    .resus-display-btn:active,
    .rm-session-container:active {
        transform: none !important;
    }
}

/* Success and Error states (Subtle dark mode coloring) */
.resus-session-id-message.success {
    background: rgba(46, 49, 146, 0.1);
    border-color: rgba(46, 49, 146, 0.3);
    color: #e0e0e0;
}

.resus-session-id-message.error {
    background: rgba(249, 6, 24, 0.1);
    border-color: rgba(249, 6, 24, 0.3);
    color: #e0e0e0;
}

/* Loading states */
.resus-session-id-action-btn:disabled,
.resus-display-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Landscape orientation support for larger phones/tablets */
@media (max-width: 768px) and (orientation: landscape) {

    .resus-session-id-container,
    .resus-session-id-qr-section,
    .rm-session-container {
        margin: 1rem auto;
        padding: 1rem;
    }

    .resus-session-id-btn-group {
        gap: 0.8rem;
    }

    .resus-session-id-action-btn,
    .resus-display-btn {
        min-height: 42px;
        padding: 0.8rem 1rem;
    }
}