/* ================= HEADER ================= */

header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.icx-header-wrap {
    max-width: 1400px;
    margin: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.icx-brand-logo {
    height: 67px;
}

.icx-menu-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.icx-menu-list a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: 0.3s;
}

.icx-menu-list a:hover {
    color: #9c27b0;
}

.icx-btn-cohost {
    background: linear-gradient(135deg, #ec1c24, #231f20);
    color: #fff;
    padding: 0.7rem 1.5rem;
    border-radius: 25px;
    border: none;
    cursor: pointer;
    font-weight: 600;
}




.banner {
    position: relative;
    width: 100%;
    height: 600px;
    background: linear-gradient(rgba(30, 80, 100, 0.7), rgba(30, 80, 100, 0.7)),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="1600" height="600"><rect fill="%23406875" width="1600" height="600"/></svg>');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(to right, #a83232, #c43e3e);
}

.content {
    position: relative;
    z-index: 2;
    padding: 60px 100px;
    color: white;
    max-width: 1400px;
}

h1 {
    font-size: 3.2em;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.location {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.3em;
    margin-bottom: 10px;
    /* background: #c43e3e; */
    padding: 8px 20px;
    border-radius: 4px;
    display: inline-flex;
    font-weight: 600;
}

.location::before {
    content: '📍';
    font-size: 1.2em;
}

.date {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.3em;
    margin-bottom: 35px;
    background: #c43e3e;
    padding: 8px 20px;
    border-radius: 4px;
    display: inline-flex;
    font-weight: 600;
    margin-top: 10px;
}

.date::before {
    content: '📅';
    font-size: 1.2em;
}

.organizer {
    font-size: 1.1em;
    margin-bottom: 8px;
    font-weight: 500;
}

.organizer strong {
    font-weight: 700;
}

.collaboration {
    font-size: 1.1em;
    margin-bottom: 25px;
    font-weight: 500;
}

.logos {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-bottom: 40px;
}

.logo-box {
    background: white;
    padding: 15px 25px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 120px;
    height: 80px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.logo-box.iraj {
    background: white;
}

.logo-text {
    font-weight: 700;
    font-size: 1.8em;
}

.logo-text.iraj {
    color: #2c5aa0;
}

.logo-text.scopus {
    color: #ff6c00;
}

.logo-text.clarivate {
    color: #00a0df;
}

.buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 35px;
    font-size: 1.1em;
    font-weight: 600;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: #c43e3e;
    color: white;
}

.btn-primary:hover {
    background: #a83232;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.chat-bubble {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    background: #00d95f;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 1000;
}

.chat-bubble::before {
    content: '💬';
    font-size: 24px;
}

@media (max-width: 768px) {
    .content {
        padding: 40px 30px;
    }

    h1 {
        font-size: 2em;
    }

    .location,
    .date {
        font-size: 1em;
    }

    .logos {
        flex-wrap: wrap;
    }

    .buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}


.banner-container {
    position: relative;
    width: 100%;
    min-height: 600px;
    background: linear-gradient(135deg, rgba(30, 60, 90, 0.95), rgba(60, 90, 120, 0.9)),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100"><rect fill="%23456789" width="100" height="100"/></svg>');
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

.banner-container::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.3));
    pointer-events: none;
}

.watermark {
    position: absolute;
    top: 50%;
    right: 10%;
    transform: translateY(-50%);
    font-size: 180px;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.08);
    letter-spacing: -5px;
    line-height: 0.9;
    user-select: none;
    z-index: 1;
}

.content {
    position: relative;
    z-index: 2;
    padding: 60px 80px;
    max-width: 1400px;
}

.top-bar {
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
    letter-spacing: 3px;
    margin-bottom: 30px;
    text-transform: uppercase;
}

.main-title {
    font-size: 42px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.3;
    margin-bottom: 20px;
    max-width: 900px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-size: 24px;
    color: #f4c430;
    font-weight: 600;
    margin-bottom: 25px;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.3);
}

.location {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    color: #ffffff;
    margin-bottom: 35px;
}

.location-icon {
    width: 20px;
    height: 20px;
    background: #4285f4;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
}

.organizer-section {
    margin-bottom: 30px;
}

.organizer-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    margin-bottom: 15px;
    font-weight: 500;
}

.logo-container {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 30px;
}

.logo-box {
    background: white;
    padding: 12px 20px;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 120px;
    height: 60px;
    font-weight: 700;
    color: #333;
    font-size: 16px;
}

.logo-box.arsss {
    background: linear-gradient(white, #f8f8f8);
    color: #e74c3c;
}

.logo-box.scopus {
    background: linear-gradient(white, #fff5e6);
    color: #ff8c00;
}

.logo-box.clarivate {
    background: linear-gradient(white, #f0f8ff);
    color: #0066cc;
}

.isbn {
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 35px;
    letter-spacing: 1px;
}

.button-group {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    padding: 16px 35px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.btn-primary {
    background: #4285f4;
    color: white;
}

.btn-primary:hover {
    background: #3367d6;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(66, 133, 244, 0.4);
}

.btn-secondary {
    background: #ff6b35;
    color: white;
}

.btn-secondary:hover {
    background: #e55a2b;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.btn-tertiary {
    background: #5865f2;
    color: white;
}

.btn-tertiary:hover {
    background: #4752c4;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(88, 101, 242, 0.4);
}

/* .side-tab {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    background: #0066cc;
    color: white;
    padding: 40px 12px;
    writing-mode: vertical-rl;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    border-radius: 6px 0 0 6px;
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.3);
    z-index: 10;
} */

/* Decorative elements */
.circle-decoration {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1), transparent);
}

.circle-1 {
    width: 400px;
    height: 400px;
    top: -100px;
    right: -100px;
}

.circle-2 {
    width: 300px;
    height: 300px;
    bottom: -50px;
    left: -50px;
}

@media (max-width: 768px) {
    .content {
        padding: 40px 30px;
    }

    .main-title {
        font-size: 28px;
    }

    .subtitle {
        font-size: 18px;
    }

    .watermark {
        font-size: 100px;
        right: 5%;
    }

    .button-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}




/* Mobile Responsive Styles */
@media screen and (max-width: 768px) {
    .banner-container {
        padding: 20px 15px;
        min-height: auto;
        overflow-x: hidden;
    }

    /* Decorative circles - smaller or hidden on mobile */
    .circle-decoration {
        width: 100px;
        height: 100px;
    }

    .circle-1 {
        top: 10px;
        left: -30px;
    }

    .circle-2 {
        bottom: 10px;
        right: -30px;
    }

    /* Watermark image */
    .watermark {
        position: relative;
        width: 100%;
        margin-bottom: 20px;
    }

    .watermark img {
        width: 100%;
        height: auto;
        max-height: 200px;
        object-fit: cover;
    }

    /* Main content */
    .content {
        width: 100%;
        padding: 0;
    }

    .top-bar {
        font-size: 10px;
        padding: 8px 12px;
        margin-bottom: 15px;
        text-align: center;
    }

    .main-title {
        font-size: 18px;
        line-height: 1.4;
        margin-bottom: 15px;
        text-align: center;
    }

    .subtitle {
        font-size: 14px;
        margin-bottom: 15px;
        text-align: center;
    }

    .location {
        flex-direction: row;
        justify-content: center;
        align-items: center;
        gap: 8px;
        margin-bottom: 20px;
        font-size: 14px;
    }

    .location-icon {
        font-size: 18px;
    }

    /* Organizer section */
    .organizer-section {
        margin-bottom: 20px;
    }

    .organizer-label {
        font-size: 12px;
        margin-bottom: 12px;
        text-align: center;
    }

    .logo-container {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }

    .logo-box {
        font-size: 11px;
        padding: 8px 12px;
        min-width: auto;
        flex: 0 1 calc(50% - 8px); /* Two logos per row */
    }

    .isbn {
        font-size: 13px;
        margin-bottom: 20px;
        text-align: center;
    }

    /* Button group */
    .button-group {
        flex-direction: column;
        gap: 12px;
        width: 100%;
    }

    .btn {
        width: 100%;
        padding: 12px 20px;
        font-size: 14px;
        text-align: center;
    }

    /* Side tab - reposition for mobile */
    .side-tab {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        writing-mode: horizontal-tb;
        padding: 12px 20px;
        margin-top: 20px;
        width: 100%;
        text-align: center;
        border-radius: 8px;
    }
}

/* Extra small mobile devices */
@media screen and (max-width: 480px) {
    .banner-container {
        padding: 15px 10px;
    }

    .main-title {
        font-size: 16px;
    }

    .top-bar {
        font-size: 9px;
    }

    .logo-box {
        font-size: 10px;
        padding: 6px 10px;
    }

    .btn {
        padding: 10px 16px;
        font-size: 13px;
    }

    /* Stack logos vertically on very small screens if needed */
    .logo-container {
        flex-direction: column;
    }

    .logo-box {
        flex: 1 1 100%;
        width: 100%;
    }
}

.logo-container {
    display: flex;
    gap: 20px;
    align-items: center;
    /* justify-content: center; */
}

.logo-box {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-box img {
    max-height: 60px;
    width: auto;
}