@import url('https://fonts.googleapis.com/css2?family=Lato:wght@300;400;500;600&family=Montserrat:wght@400;500;600&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Lato', sans-serif;
    color: #2c3e50;
    background-color: white;
}

.middle-milk {
    margin: 0 auto;
    padding: 0 11rem;
}

/* time table */
.time-table {
    margin: 0 auto;
    text-align: center;
    width: 100%;
    border: 1px dashed rgb(214, 213, 213);
    border-collapse: separate;
    border-spacing: 0.75rem 0.25rem;
    table-layout: fixed;
    border-radius: 2rem;
    overflow: hidden;
}

td,
th {
    padding: 0.5rem;
    border-radius: 0.75rem;
    border: 3px solid #e0d6d6;
    overflow: hidden;

}

th:first-child,
td:first-child {
    width: 140px;
}

.table-date {
    background-color: #fff;
}

.table-reg {
    background-color: #e3f2fd;
}

.table-keynote-etc {
    background-color: #fce4ec;
}

.table-paper {
    background-color: #e8f5e9;
}

.table-break {
    background-color: #f5e6ff;
}

.table-sikfan {
    background-color: #fff3e0;
}

.table-section {
    width: 5%;
    border-top: 2px dotted #c2c3c8;
    border-radius: 1px;
}

/* 備註 */
.ps {
    padding: 0 2rem;
}

/* session 那邊 */
.schedule-header {
    background: white;
    color: rgb(28, 1, 1);
    padding: 1.5rem;
    text-align: center;
    margin: 1.5rem auto;
    border-radius: 8px;
}

.schedule-header h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.3px;
}

.program-item,
.schedule-item {
    margin: 0 0 1rem 0;
    background: white;
    border-radius: 6px;
    overflow: hidden;
}

.time-slot {
    background: linear-gradient(135deg, #fcfdff 0%, white 100%);
    padding: 0.77rem 1rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1.05rem;
    color: #0f3154;
    display: flex;
    align-items: center;
}

.time-slot::before {
    content: "🕐";
    margin-right: 0.5rem;
    font-size: 0.9rem;
}

.event {
    padding: 1rem 2rem 0 2rem;
}

.event-content {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 500;
    color: #495057;
}


.session {
    padding: 0 10rem;
    margin-top: 1rem;
    padding-top: 1rem;
    position: relative;
}

.session::after {
    content: "";
    position: absolute;
    top: 0;
    left: 12%;
    width: 76%;
    border-top: 4px dotted #e9ecef;
}

.session-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    color: #495057;
    margin-bottom: 0.4rem;
    font-weight: 600;
}

.session-title strong {
    color: #667eea;
}

.session-info {
    margin-bottom: 1.2rem;
}

.location {
    color: #6c757d;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
    padding-left: 1.2rem;
    position: relative;
}

.location::before {
    content: "📍";
    position: absolute;
    left: 0;
    font-size: 0.8rem;
}

.papers-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.paper-item {
    padding: 0.5rem 1.3rem;
    background: #fcfdff;
    border-radius: 4px;
    transition: all 0.2s ease;
    position: relative;
}

.paper-item.journal {
    border-left: 0.5rem solid #ddeeff;
}

.paper-item.conference {
    border-left: 0.5rem solid #ffdddd;
}

.paper-item.TVCG {
    border-left: 0.5rem solid #e7ffe7;
}

.paper-item:hover {
    background: #e7f1ff;
    transform: translateX(2px);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.1);
}

.paper-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    color: #495057;
    margin-bottom: 0.6rem;
    line-height: 1.4;
}

.paper-authors {
    color: #6c757d;
    font-size: 0.85rem;
    margin-bottom: 0.6rem;
    line-height: 1.4;
}

.paper-info {
    display: flex;
}

.paper-type {
    display: inline-block;
    color: black;
    padding: 0.3rem 0.6rem;
    margin: 0.5rem 0;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.paper-type.journal {
    background: #ddeeff;
}

.paper-type.conference {
    background: #ffdddd;
}

.paper-type.TVCG {
    background: #e7ffe7;
}

/* remote icon */
.remote-text {
    display: inline-block;
    color: black;
    padding: 0.3rem 0.5rem;
    margin: 0.5rem 0;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    border: 1px dashed #6264a7;
}

.fa-solid {
    font-size: 1.3rem;
    margin: 0.75rem 0 0 1rem;
    display: inline-block;
    vertical-align: middle;
}

.fa-solid.journal {
    color: #053667
}

.fa-solid.conference {
    color: #611450
}

.fa-solid.TVCG {
    color: #056764
}

.bi-microsoft-teams {
    display: inline-block;
    vertical-align: middle;
    font-size: 1.35rem;
    margin-left: 1rem;
    color: #6264A7;
}

/* 那條看不太到的分隔線 */
.program-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, #dee2e6, transparent);
    margin: 1rem 0;
}


/* ==================== 響應式設計 ==================== */

/* iPad 中型 */
@media (max-width: 1023px) {
    .middle-milk {
        padding: 0 3rem;
    }

    .session {
        padding: 0 3rem;
    }

    .session::after {
        left: 8%;
        width: 84%;
    }
}

/* iPad mini & 直向 */
@media (max-width: 767px) {

    .table-section {
        display: none !important;
    }

    .middle-milk {
        padding: 0 1.5rem;
    }

    .session {
        padding: 0 1.5rem;
    }

    .session::after {
        left: 5%;
        width: 90%;
    }

    .schedule-header {
        padding: 1rem;
    }

    .schedule-header h2 {
        font-size: 1.5rem;
    }

    .time-slot {
        padding: 0.6rem 0.8rem;
        font-size: 0.95rem;
    }

    .event {
        padding: 1rem 1.5rem 0 1.5rem;
    }

    .event-content {
        font-size: 1.2rem;
    }

    .session-title {
        font-size: 1.4rem;
    }

    .paper-item {
        padding: 0.8rem 1rem;
    }

    .paper-title {
        font-size: 0.95rem;
    }

    .paper-authors {
        font-size: 0.8rem;
    }

    .fa-solid,
    .bi-microsoft-teams {
        font-size: 1.1rem;
        margin-left: 0.75rem;
    }
}

/* 手機 (最大 480px) */
@media (max-width: 480px) {
    .time-table {
        border-spacing: 0.4rem 0.2rem;
    }

    td,
    th {
        padding: 0.25rem;
        border-radius: 0.74rem;
        border: 2px solid #bdb4b4;
        overflow: hidden;
    }

    .table-section {
        display: none !important;
    }

    .middle-milk {
        padding: 0 1rem;
    }

    .session {
        padding: 0 1rem;
    }

    .session::after {
        left: 0;
        width: 100%;
        border-top: 2px dotted #e9ecef;
    }

    .schedule-header {
        padding: 0.8rem;
        margin: 1rem auto;
    }

    .schedule-header h2 {
        font-size: 1.3rem;
    }

    .time-slot {
        padding: 0.5rem 0.8rem;
        font-size: 0.9rem;
    }

    .event {
        padding: 0.75rem 1rem 0 1rem;
    }

    .event-content {
        font-size: 1rem;
    }

    .speaker {
        font-size: 0.9rem;
        margin: 0.75rem;
    }

    .session-title {
        font-size: 1.2rem;
    }

    .paper-item {
        padding: 0.6rem 0.8rem;
        border-left-width: 0.3rem;
    }

    .papers-list {
        gap: 0.5rem;
    }

    .location {
        font-size: 0.8rem;
        padding-left: 1rem;
    }

    .paper-title {
        font-size: 0.9rem;
    }

    .paper-authors {
        font-size: 0.75rem;
    }

    .paper-type {
        font-size: 0.65rem;
        padding: 0.25rem 0.5rem;
    }

    .fa-solid,
    .bi-microsoft-teams {
        font-size: 1rem;
        margin-left: 0.5rem;
        margin-top: 0.5rem;
    }
}

/* 小手機 (iPhone SE) */
@media (max-width: 374px) {
    .time-table {
        border-spacing: 0.25rem 0.15rem;
        border-radius: 0.8rem;
    }

    .table-section {
        display: none !important;
    }

    td,
    th {
        padding: 0.25rem;
        border-radius: 0.7rem;
        border: 1.3px solid #bdb4b4;
        overflow: hidden;
        font-size: 0.5rem;

    }

    .middle-milk {
        padding: 0 0.75rem;
    }

    .session {
        padding: 0 0.75rem;
    }

    .schedule-header h2 {
        font-size: 1.1rem;
    }

    .event-content {
        font-size: 0.95rem;
    }

    .session-title {
        font-size: 1.1rem;
    }

    .paper-item {
        padding: 0.5rem;
    }

    .paper-title {
        font-size: 0.85rem;
    }
}

@media print {
    body {
        font-size: 12px;
    }

    .schedule-header {
        background: #667eea !important;
        color: white !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .paper-item {
        break-inside: avoid;
        margin-bottom: 0.5rem;
        padding: 0.5rem;
    }

    .paper-item:hover {
        transform: none;
        box-shadow: none;
    }

    .time-slot::before,
    .location::before {
        display: none;
    }

    .middle-milk {
        padding: 0 1rem;
    }

    .session {
        padding: 0 1rem;
    }
}