/* ============================
   Beamer+ Alert Modal System
   ============================ */

/* Overlay */
.custom-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;

    font-family: "Computer Modern Sans", sans-serif;
    font-size: 1rem;
    font-weight: 400;
}

/* Modal Box — matches .modal-box + control panel surfaces */
.custom-modal-content {
    background: #eee;
    border: 2px solid #666;
    border-radius: 6px;

    padding: 1.5rem;
    max-width: 45%;
    width: 90%;
    position: relative;

    box-shadow: none;
}

/* Icon — same visual weight as UI affordances */
.custom-modal-icon {
    font-size: 2rem;
    text-align: center;
    color: #666;
    margin-bottom: 0.5rem;
}

/* Explicitly neutralize variants */
.custom-modal-overlay.modal-info .custom-modal-icon,
.custom-modal-overlay.modal-success .custom-modal-icon,
.custom-modal-overlay.modal-warning .custom-modal-icon,
.custom-modal-overlay.modal-error .custom-modal-icon,
.custom-modal-overlay.modal-confirm .custom-modal-icon {
    color: #666;
}

/* Title — same hierarchy as panel labels */
.custom-modal-title {
    margin: 0 0 0.75rem 0;
    text-align: center;

    font-size: 1.5rem;
    font-weight: 300;
    color: #000;
}

/* Message — identical tone to control text */
.custom-modal-message {
    text-align: center;
    color: #333;
    line-height: 1.5;
    margin-bottom: 1.25rem;

    user-select: text;
}

/* Buttons container */
.custom-modal-buttons {
    display: flex;
    justify-content: center;
    gap: 8px;
}

.custom-modal-btn {
    display: inline-block;
    padding: 0.5em 1em;

    font-family: "Computer Modern Sans", sans-serif;
    font-size: 1rem;

    color: #666;
    background-color: #eeeeee;

    border: 2px solid #666;
    border-radius: 4px;

    cursor: pointer;
    text-decoration: none;

    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.custom-modal-btn:hover {
    background-color: #bbbbbb;
}

.custom-modal-btn:focus {
    outline: none;
    border-color: #000;
}

/* OK button — analogous to "selected", but less aggressive */
.custom-modal-btn-ok {
    font-weight: 600;
}

/* Cancel button — fully neutral */
.custom-modal-btn-cancel {
    color: #666;
}

/* =====================================
   Academic Loading Indicator (Writing)
   ===================================== */

.custom-modal-spinner {
    text-align: center;
    margin-bottom: 0.75rem;

    font-family: "Computer Modern Sans", monospace;
    font-size: 1.1rem;
    color: #666;
}

/* Simulated writing line */
.custom-modal-spinner::after {
    content: '';
    display: inline-block;
    height: 1em;
    width: 0;
    border-right: 2px solid #666;
    animation: write-line 2s steps(18, end) infinite;
    vertical-align: bottom;
}

/* Writing animation */
@keyframes write-line {
    0% {
        width: 0;
        opacity: 1;
    }
    70% {
        width: 12ch;
        opacity: 1;
    }
    100% {
        width: 12ch;
        opacity: 0;
    }
}

/* Loading state */
.modal-loading {
    pointer-events: none;
}

.modal-loading .custom-modal-content {
    pointer-events: auto;
}

/* Squiggle loader */
.custom-modal-squiggle {
    width: 120px;
    height: 40px;
    display: block;
    margin: 0 auto 0.75rem auto;
}
.custom-modal-squiggle path {
    fill: none;
    stroke: #666;
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 150;
    stroke-dashoffset: 150;
    animation: draw-squiggle 1.6s ease-in-out infinite;
}

@keyframes draw-squiggle {
    0% { stroke-dashoffset: 150; opacity: 0.6; }
    40% { stroke-dashoffset: 0; opacity: 1; }
    100% { stroke-dashoffset: -150; opacity: 0.6; }
}

/* Responsive — mirrors modal-box behavior */
@media (max-width: 768px) {
    .custom-modal-content {
        max-width: 85%;
    }

    .custom-modal-buttons {
        flex-direction: column-reverse;
    }

    .custom-modal-btn {
        width: 100%;
    }
}