/**
 * OPT Calculator Styles
 * File: assets/css/opt-calculator.css
 * 
 * Description: Main stylesheet for the GMU OPT Calculator WordPress plugin.
 * Contains styles for all calculator interfaces including When to Apply,
 * Start Date, End Date, Past OPT, Feasibility, and STEM Reporting calculators.
 * 
 * All classes are prefixed with 'gmu-opt-' to avoid conflicts.
 * 
 * @package GMU_OPT_Calculator
 * @version 1.0.0
 */

/* ==========================================================================
   Base Container Styles
   ========================================================================== */

.gmu-opt-container {
    max-width: 920px;
    margin: 0 auto;
    padding: 40px;
}

.gmu-opt-calculator-container {
    max-width: 920px;
    margin: 0 auto;
    padding: 40px;
}

.gmu-opt-arrow-icon {
    text-align: center;
    margin-bottom: 30px;
}

.gmu-opt-arrow-icon svg {
    width: 50px;
    height: 50px;
    fill: #005239;
}

/* ==========================================================================
   Typography & Text Elements
   ========================================================================== */

.gmu-opt-page-title {
    color: #005239;
    text-align: center;
    font-size: 28px;
    margin-bottom: 20px;
    font-weight: 600;
}

.gmu-opt-description {
    text-align: center;
    color: #333;
    line-height: 1.6;
    margin-bottom: 40px;
    font-size: 16px;
}

/* ==========================================================================
   Form Elements
   ========================================================================== */

.gmu-opt-form-group {
    margin-bottom: 25px;
}

.gmu-opt-form-group label {
    display: block;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    font-size: 15px;
}

.gmu-opt-form-group input[type="date"] {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 0;
    font-size: 15px;
    font-family: inherit;
}

.gmu-opt-form-group input[type="date"]:focus {
    outline: none;
    border-color: #005239;
}

.gmu-opt-btn-calculate {
    background: transparent !important;
    color: #005239 !important;
    border: 1.5px solid #005239 !important;
    padding: 12px 32px !important;
    font-size: 16px !important;
    font-weight: 600 !important;
    border-radius: 0 !important;
    cursor: pointer !important;
    transition: all 0.3s !important;
    text-transform: capitalize !important;
}

.gmu-opt-btn-calculate:hover {
    background: #005239 !important;
    color: white !important;
    border-color: #005239 !important;
}

/* ==========================================================================
   Results & Timeline Display
   ========================================================================== */

.gmu-opt-results-section {
    margin-top: 40px;
    display: none;
}

.gmu-opt-results-section.show {
    display: block;
}

/* Timeline Container */
.gmu-opt-timeline {
    position: relative;
    padding: 20px 0;
    max-width: 100%;
}

/* Timeline Labels - animated badges above timeline */
.gmu-opt-timeline-labels {
    position: relative;
    margin-bottom: 28px;
    opacity: 0;
    animation: fadeIn 0.5s ease-out 1.2s forwards;
    height: 40px;
}

.gmu-opt-timeline-label {
    background: #005239;
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    position: absolute;
    transform: translateX(-50%);
    max-width: calc(33% - 10px);
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gmu-opt-timeline-label:nth-child(1) {
    left: 2%;
    transform: translateX(0);
}

.gmu-opt-timeline-label:nth-child(2) {
    left: 50%;
    transform: translateX(-50%);
}

.gmu-opt-timeline-label:nth-child(3) {
    left: 98%;
    transform: translateX(-100%);
}

/* Timeline Bar - the main horizontal line */
.gmu-opt-timeline-bar-container {
    position: relative;
    padding: 12px 0;
    margin: 0 auto;
}

.gmu-opt-timeline-bar {
    position: relative;
    height: 1px;
    background: #333;
    border-radius: 0;
    transform-origin: center;
    animation: expandTimeline 1s ease-out;
    width: 85%;
    margin: 0 auto;
}

/* Timeline Animation Keyframes */
@keyframes expandTimeline {
    0% {
        transform: scaleX(0);
        opacity: 0;
    }
    100% {
        transform: scaleX(1);
        opacity: 1;
    }
}

/* Timeline Points - dots on the timeline */
.gmu-opt-timeline-point {
    position: absolute;
    width: 8px;
    height: 8px;
    background: #005239;
    border-radius: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    animation: fadeInDot 0.5s ease-out forwards;
}

@keyframes fadeInDot {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.gmu-opt-timeline-point.start {
    left: 0%;
    animation-delay: 0.3s;
}

.gmu-opt-timeline-point.middle {
    left: 50%;
    animation-delay: 0.6s;
}

.gmu-opt-timeline-point.end {
    left: 100%;
    animation-delay: 0.9s;
}

/* Timeline Dates - date labels below timeline */
.gmu-opt-timeline-dates {
    position: relative;
    margin-top: 25px;
    opacity: 0;
    animation: fadeIn 0.5s ease-out 1.2s forwards;
    height: 20px;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(-10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.gmu-opt-timeline-date {
    font-size: 14px;
    color: #333;
    font-weight: normal;
    text-align: center;
    position: absolute;
    transform: translateX(-50%);
    white-space: nowrap;
    max-width: calc(33% - 10px);
    overflow: hidden;
    text-overflow: ellipsis;
}

.gmu-opt-timeline-date:nth-child(1) {
    left: 4%;
    transform: translateX(0);
    text-align: left;
}

.gmu-opt-timeline-date:nth-child(2) {
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.gmu-opt-timeline-date:nth-child(3) {
    left: 96%;
    transform: translateX(-100%);
    text-align: right;
}

/* Days Between - displays day counts between dates */
.gmu-opt-days-between {
    position: relative;
    height: 0;
    margin-top: 2px;
    opacity: 0;
    animation: fadeIn 0.5s ease-out 1.2s forwards;
}

.gmu-opt-days-label {
    position: absolute;
    font-size: 13px;
    color: #666;
    font-weight: normal;
    transform: translateX(-50%);
    text-align: center;
    white-space: nowrap;
}

.gmu-opt-days-label:first-child {
    left: 25%;
}

.gmu-opt-days-label:last-child {
    left: 75%;
}

/* Apply By Indicator - dashed line and labels */
.gmu-opt-apply-by-line {
    position: absolute;
    width: 2px;
    height: 140px;
    background: repeating-linear-gradient(
        to bottom,
        #005239,
        #005239 5px,
        transparent 5px,
        transparent 10px
    );
    top: -75px;
    transform: translateX(-50%);
}

.gmu-opt-apply-by-label-container {
    position: relative;
    white-space: nowrap;
}

.gmu-opt-apply-by-label {
    background: white;
    color: #005239;
    padding: 4px 8px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid #005239;
    border-radius: 3px;
    display: block;
    margin-bottom: 95px;
}

.gmu-opt-apply-by-label.date {
    background: white;
    color: #005239;
    padding: 4px 8px;
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid #005239;
    border-radius: 3px;
    display: block;
    white-space: nowrap;
}

/* Information Boxes */
.gmu-opt-info-box {
    background: #FFC733;
    border-left: 4px solid #005239;
    padding: 15px 20px;
    margin-top: 25px;
    border-radius: 4px;
    opacity: 0;
    animation: fadeIn 0.5s ease-out 1.5s forwards;
}

.gmu-opt-info-box p {
    color: #333;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 8px;
}

.gmu-opt-info-box p:last-child {
    margin-bottom: 0;
}

.gmu-opt-info-box strong {
    color: #005239;
}

/* ==========================================================================
   Start Date Calculator Section
   ========================================================================== */

.gmu-opt-start-date-section {
    margin-top: 40px;
    margin-bottom: 40px;
    display: none;
}

.gmu-opt-start-date-section.show {
    display: block;
}

.gmu-opt-start-date-section::before {
    content: '';
    display: block;
    width: 100%;
    height: 1px;
    background: #e0e0e0;
    margin-bottom: 40px;
}

.gmu-opt-start-date-timeline .gmu-opt-timeline-point.start-date-middle {
    left: 25% !important;
    animation-delay: 0.6s;
}

.gmu-opt-start-date-timeline .gmu-opt-timeline-label.start-date-label-1 {
    left: 2% !important;
    transform: translateX(0) !important;
    text-align: left !important;
}

.gmu-opt-start-date-timeline .gmu-opt-timeline-label.start-date-label-2 {
    left: 30% !important;
    transform: translateX(-50%) !important;
    text-align: center !important;
}

.gmu-opt-start-date-timeline .gmu-opt-timeline-label.start-date-label-3 {
    left: 98% !important;
    transform: translateX(-100%) !important;
    text-align: right !important;
}

.gmu-opt-start-date-timeline .gmu-opt-timeline-date.start-date-date-1 {
    left: 3% !important;
    transform: translateX(0) !important;
    text-align: left !important;
}

.gmu-opt-start-date-timeline .gmu-opt-timeline-date.start-date-date-2 {
    left: 30% !important;
    transform: translateX(-50%) !important;
    text-align: center !important;
}

.gmu-opt-start-date-timeline .gmu-opt-timeline-date.start-date-date-3 {
    left: 98% !important;
    transform: translateX(-100%) !important;
    text-align: right !important;
}

.gmu-opt-start-date-timeline .gmu-opt-days-label.start-date-day-1 {
    left: 16.5% !important;
    transform: translateX(-50%) !important;
}

.gmu-opt-start-date-timeline .gmu-opt-days-label.start-date-day-2 {
    left: 61.5% !important;
    transform: translateX(-50%) !important;
}

/* ==========================================================================
   Past OPT Calculator Section
   ========================================================================== */

.gmu-opt-past-opt-section {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid #e0e0e0;
}

.gmu-opt-past-opt-form .form-row {
    display: flex;
    gap: 20px;
}

.gmu-opt-past-opt-form .form-row .gmu-opt-form-group {
    flex: 1;
}

.gmu-opt-checkbox-group {
    display: flex;
    align-items: center;
}

.gmu-opt-checkbox-group input[type="checkbox"] {
    margin-right: 10px;
    width: auto;
}

.gmu-opt-form-buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.gmu-opt-reset-btn {
    background: transparent !important;
    border-color: #6c757d !important;
    color: #6c757d !important;
}

.gmu-opt-reset-btn:hover {
    background: #5a6268 !important;
    border-color: #545b62 !important;
    color: white !important;
}

.gmu-opt-results {
    margin-top: 20px;
    font-size: 18px;
}

#days-left {
    font-weight: bold;
    background-color: #005239;
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
}

#past-opts-list {
    margin-bottom: 20px;
}

.gmu-opt-past-opt-item {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gmu-opt-past-opt-item button {
    background: #dc3545;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    margin-left: 5px;
}

.gmu-opt-past-opt-item button.edit-btn {
    background: #007bff;
}

.gmu-opt-past-opt-item button.gmu-opt-edit-btn {
    background: #007bff;
}

/* ==========================================================================
   End Date Calculator Section
   ========================================================================== */

.gmu-opt-end-date-calculator-section {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid #e0e0e0;
}

/* ==========================================================================
   STEM Reporting Calculator Section
   ========================================================================== */

.gmu-opt-stem-reporting-section {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid #e0e0e0;
}

.gmu-opt-reporting-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
    background: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.gmu-opt-reporting-table th {
    background: #005239;
    color: white;
    padding: 15px;
    text-align: left;
    font-weight: 600;
    font-size: 15px;
}

.gmu-opt-reporting-table td {
    padding: 15px;
    border-bottom: 1px solid #e0e0e0;
    font-size: 14px;
}

.gmu-opt-reporting-table tr:last-child td {
    border-bottom: none;
}

.gmu-opt-reporting-table tr:hover {
    background: #f8f9fa;
}

.gmu-opt-reporting-window {
    color: #666;
    font-size: 13px;
    margin-top: 5px;
}

.gmu-opt-reporting-date-main {
    color: #005239;
    font-weight: 600;
    font-size: 15px;
}

/* ==========================================================================
   Additional Form Inputs & Results
   ========================================================================== */

#opt-days-to-use {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 0;
    font-size: 15px;
    font-family: inherit;
}

#new-opt-end-date-result {
    margin-top: 20px;
    font-size: 18px;
    display: none;
}

#new-opt-end-date {
    font-weight: bold;
    background-color: #005239;
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
}

.gmu-opt-student-info {
    text-align: left;
    line-height: 1.6;
    font-size: 15px;
    margin-bottom: 30px;
    background: #f0f8f5;
    padding: 20px;
    border-radius: 5px;
    border-left: 4px solid #005239;
}

.gmu-opt-student-info h3 {
    margin-top: 0;
    color: #005239;
    font-weight: 600;
}

.gmu-opt-student-info p {
    margin-bottom: 10px;
}

.gmu-opt-info-box.no-animation {
    opacity: 1;
    animation: none;
}

/* ==========================================================================
   Responsive Media Queries
   ========================================================================== */

/* Tablet and smaller devices */
@media (max-width: 768px) {
    .gmu-opt-timeline {
        padding: 20px 20px;
    }

    .gmu-opt-timeline-label {
        padding: 6px 12px;
        font-size: 12px;
        max-width: 28%;
    }

    .gmu-opt-timeline-date {
        font-size: 12px;
        max-width: 28%;
    }

    .gmu-opt-days-label {
        font-size: 11px;
    }

    .gmu-opt-start-date-timeline .gmu-opt-timeline-label.start-date-label-2 {
        font-size: 11px;
        padding: 5px 8px;
    }
}

/* Mobile devices */
@media (max-width: 480px) {
    .gmu-opt-timeline {
        padding: 20px 10px;
    }

    .gmu-opt-timeline-label {
        padding: 5px 8px;
        font-size: 11px;
        max-width: 25%;
    }

    .gmu-opt-timeline-date {
        font-size: 11px;
        max-width: 25%;
    }

    .gmu-opt-days-label {
        font-size: 10px;
    }

    .gmu-opt-days-between {
        padding: 0 10% 0 10%;
    }

    .gmu-opt-start-date-timeline .gmu-opt-timeline-label.start-date-label-1,
    .gmu-opt-start-date-timeline .gmu-opt-timeline-label.start-date-label-2,
    .gmu-opt-start-date-timeline .gmu-opt-timeline-label.start-date-label-3 {
        font-size: 10px;
        padding: 4px 6px;
    }
}