:root {
    --primary-color: #C667FF;
    --secondary-color: #9D34D4;
    --background-color: #F5F5F7;
    --text-color: #1e293b;
    --light-grey: #e2e8f0;
    --error-color: #dc2626;
}

@font-face {
    font-family: 'Open Sans';
    src: url("/OpenSans-ExtraBold.ttf") format('truetype'), url("/OpenSans-ExtraBold.ttf") format('ttf');
    font-weight: 800;
    font-style: normal;
    font-display: swap;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    padding: 0;
    font-family: "SF Pro Text", -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    min-height: 100vh;
    overflow: hidden;
    text-align: center;
    display: flex;
    flex-direction: column;
    color: var(--text-color);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background-color: transparent;
    position: fixed;
    top: 0;
    height: 50px;
    left: 0;
    z-index: 1000;
    box-sizing: border-box;
    width: 100%;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 30%;
}

@media (max-width: 1080px) {
    .logo-text {
        display: none !important;
    }
}

p {
    line-height: 1.5;
}

.navbutton {
    background-color: var(--primary-color);
    padding: 6px 14px;
    font-size: 1.1rem;
    font-weight: 500;
    border: 2px solid var(--primary-color);
    border-radius: 40px;
    color: #fff !important;
    transition: background-color 0.3s ease, border 0.3s ease, color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.navbutton:hover {
    background-color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
}

.nav-links {
    margin-left: auto;
    margin-right: 5px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-links a {
    margin-left: 0;
    margin-top: 3px;
    margin-right: 10px;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 40px;
    padding: 2px 5px 10px;
    background-color: #ffffff;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem; 
}

.nav-links a svg {
    vertical-align: middle;
}

.nav-links a:hover {
    opacity: 0.6;
}

@media (max-width: 1190px) {
    .guide-link {
        display: none !important;
    }
}

.toolbar {
    display: flex;
    justify-content: flex-end;
    gap: 5px;
    margin-bottom: 15px;
    width: fit-content;
    padding: 0;
    background-color: #fff;
    border-radius: 12px;
    position: absolute;
    left: 35.5%;
    margin-top: -15px;
    z-index: 1000;
}

.share-button {
    padding: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
    margin: 0;
    width: 40px !important;
    height: 40px !important;
    cursor: pointer;
    color: var(--text-color) !important;
    font-size: 1.2rem;
    background-color: #ffffff;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.01);
    transition: all 0.3s ease;
    border: none;
    position: relative;
    top: auto;
    z-index: auto;
}
.new-button {
    padding: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
    margin: 0;
    width: 40px !important;
    height: 40px !important;
    cursor: pointer;
    color: var(--text-color) !important;
    font-size: 1.2rem;
    background-color: #ffffff;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.01);
    transition: all 0.1s ease;
    border: none;
    position: relative;
    top: auto;
    z-index: auto;
}

.save-button {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 5px 15px !important;
    border-radius: 10px;
    margin: 0;
    height: 40px !important;
    cursor: pointer;
    color: var(--text-color);
    font-size: 1.2rem;
    background-color: #ffffff;
    transition: all 0.1s ease;
    border: none;
    position: relative;
    top: auto;
    z-index: auto;
    display: none;
}


.new-button:hover,
.save-button:hover,
.share-button:hover {
    background-color: #F5F5F7;
}

.share-dialog {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 1.5rem;
    border-radius: 25px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 90%;
    max-width: 400px;
    z-index: 1100;
    text-align: left;
    animation: popupSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);

}

.share-dialog h3 {
    font-size: 1.5rem;
    margin-top: 0;
    margin-bottom: 0;
}

.share-link {
    width: 96%;
    padding: 0.5rem;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    margin-top: 1rem;
    background: #f8fafc;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.32);
    display: none;
    z-index: 1050;
}

.dialog-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1rem;
}

.dialog-button {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    transition: background-color 0.2s ease;
    font-weight: 500;
    font-family: "SF Pro Text", -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;

}

.dialog-button.cancel {
    background-color: #f1f5f9;
    color: #64748b;
}

.dialog-button.cancel:hover {
    background-color: #e2e8f0;
}

.dialog-button.confirm {
    background-color: var(--primary-color);
    color: white;
}

.dialog-button.confirm:hover {
    background-color: var(--secondary-color);
}
.logo {
    position: relative;
    top: 5px;
}

.header h1 {
    margin: 0;
    font-size: 1.8rem;
    color: var(--text-color);
    font-family: 'Open Sans', sans-serif;
    font-weight: 800;
}

.logo-text {
    bottom: 4px;
    position: relative;
}

@media (max-width: 500px) {
    .logo-text {
        display: none !important;
    }
}

.container {
    display: flex;
    flex: 1;
    box-sizing: border-box;
    height: 100vh;
}

@media (max-width: 768px) {
    body {
        overflow: hidden;
        position: fixed;
        width: 100%;
        height: 100%;
    }

    .container {
        display: flex;
        flex-direction: column;
        height: calc(100vh - 80px);
        margin-top: 0px;
        overflow: hidden;
        padding: 0;
    }

    .mindmap-section {
        order: 1;
        height: 100% !important;
        width: 100%;
        overflow: hidden;
        padding: 0;
        margin: 0;
    }

    .input-section {
        order: 2;
        height: 100vh !important;
        width: 100%;
        padding: 10px;
        box-sizing: border-box;
        position: relative;
        background-color: var(--background-color);
    }

    #markdown-input {
        height: calc(100% - 60px) !important;
        width: 100%;
        box-sizing: border-box;
        margin: 0;
        padding: 15px;
        font-size: 16px;
        border-radius: 12px;
        margin-top: -10px !important;
    }

    .toolbar {
        position: relative;
        left: auto;
        margin: 0 0 10px;
        width: 100%;
        display: flex;
        justify-content: flex-end;
        background-color: transparent;
    }

    .header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background-color: #fff;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        z-index: 1000;
        padding: 10px;
        box-sizing: border-box;
        height: 55px;
    }

    .header-left {
        width: auto;
    }

    .logo-text {
        font-size: 1.8rem;
    }

    .nav-links a {
        padding: 2px 5px 10px;
        margin-right: 5px;
        font-size: 1.2rem;
    }

    .navbutton {
        padding: 5px 10px;
        font-size: 1.2rem;
    }

    .help-button {
        position: fixed;
        bottom: 20px;
        right: 25px;
        z-index: 1000;
        background-color: white;
        border-radius: 50%;
        padding: 10px;
    }

    .notification {
        bottom: 70px;
    }

    #newConfirmDialog,
    #saveDialog,
    .share-dialog {
        width: 90%;
        max-width: 350px;
        padding: 15px;
    }

    .share-link {
        font-size: 16px;
        padding: 10px;
    }

    .dialog-buttons {
        margin-top: 15px;
    }

    .dialog-button {
        padding: 10px 15px;
        font-size: 14px;
    }
    .guide-link {
        display: block !important;
    }


    @supports (-webkit-touch-callout: none) {
        .container {
            height: -webkit-fill-available;
        }

        .input-section,
        .mindmap-section {
            height: 50% !important;
        }
    }
}

@media (max-width: 480px) {
    .header {
        padding: 8px;
        box-shadow: none;
    }

    .header-left h1 {
        font-size: 1.2rem;
        margin: 0;
    }

    .logo {
        height: 30px;
        width: 30px;
    }


    .nav-links a {
        padding: 2px 8px 5px;
        margin-right: 8px;
        font-size: 1rem;
    }

    .nav-links a svg {
        display: none !important;
    }

    .navbutton {
        padding: 6px 12px;
        font-size: 1rem;
        margin-left: 10px;
    }

    .toolbar button {
        padding: 8px;
    }

    .save-button {
        padding: 5px 10px !important;
    }
}

.input-section {
    flex: 1;
    display: flex;
    padding: 20px;
    flex-direction: column;
    background-color: var(--background-color);
    max-width: 33.333%;
    height: 100vh !important;
    box-sizing: border-box;
    box-shadow: inset -6px 0 6px rgba(0, 0, 0, 0.05);
}

@media (max-width: 950px) {
    .input-section {
        max-width: 100%;
        padding: 20px 10px;
    }
}
@media (max-width: 650px) {
    .logo-text {
        display: none;
    }
}

.mindmap-section {
    flex: 2;
    display: flex;
    flex-direction: column;
    padding: 35px 0 0;
}

@media (max-width: 950px) {
    .mindmap-section {
        padding: 0;
    }
}

#markdown-input {
    width: 100%;
    flex: 1;
    padding: 12px;
    border: none;
    outline: none;
    border-radius: 16px;
    font-family: monospace;
    resize: none;
    margin-top: 10px;
    background-color: var(--background-color);
    transition: all 0.3s ease;
    height: calc(100% - 60px);
    margin-top: 40px;
    box-sizing: border-box;
    color: #414141;
}

.markmap {
    flex: 1;
    position: relative;
    border: none;
    border-radius: 0px;
    margin-top: 10px;
    width: 100%;
    height: 80vw;

}

.markmap > svg {
    width: 100%;
    height: 100vh;
    font-family: 350 16px/20px BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;;
    font-weight: 350;
}

.markmap > svg > g > g > line {
  stroke-linecap: round;
}

.markmap-foreign pre > code, .markmap-foreign code {
    border-radius: 8px;
}

h1 {
    margin: 0;
    font-size: 24px;
}

.popup {
    display: none;
    position: fixed;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.32);
    justify-content: center;
    align-items: center;
    z-index: 1100;
    
}

.popup-content {
    background-color: white;
    padding: 20px;
    border-radius: 20px;
    text-align: left;
    max-width: 300px;
    color: var(--text-color);
    display: flex;
    line-height: 1.5;
    flex-direction: column;
    align-items: space-between;
    animation: popupSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes popupSlideIn {
    from {
        opacity: 0;
        transform: translate(-50%, -60%) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}


.accept-terms-button,
.decline-terms-button {
    margin: 5px;
    padding: 12px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
}

.accept-terms-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    transition: all 0.3s ease;
}

.decline-terms-button {
    background-color: var(--light-grey);
    color: black;
    border: none;
}

.accept-terms-button:hover {
    background-color: #b73cfe;
}

.decline-terms-button:hover {
    background-color: rgb(215, 215, 215);
}

.legal-purposes {
    margin: 0;
    padding-left: 20px;
}

.popup-content a {
    background-color: #f0f0f0;
    padding: 3px;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.1s ease;
    font-size: 1rem;
}
.popup-content a:hover {
    background-color: #e6e6e6;
}

.help-button {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    cursor: pointer;
    position: fixed;
    right: 17px;
    bottom: 17px;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    padding: 9px 11px 11px 9px;
    color: var(--text-color);
    margin-left: 8px;
    transition: all 0.3s ease;
    z-index: 1000;
}

.info-button {
    position: fixed;
    bottom: 17px;
    right: 14px;
    display: flex;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 25px;
    padding: 8px;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    z-index: 1000;
    cursor: pointer;
}

.info-menu {
    position: fixed;
    bottom: 70px;
    right: 20px;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 10px;
    display: none;
    flex-direction: column;
    z-index: 1800;
    text-align: left;
}

.info-menu.show {
    display: flex;
}

.info-menu a {
    color: var(--text-color);
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 12px;
    transition: background-color 0.3s ease;
    white-space: nowrap;
}

.info-menu a:hover {
    background-color: #F5F5F7;
}
.markdown-badge {
    position: fixed;
    bottom: 8px;
    left: 20px;
    display: flex;
    align-items: center;
    padding: 2px;
    border-radius: 5px;
    transition: all 0.3s ease;
    z-index: 1000;
    cursor: pointer;
    color: #1e293b;
    opacity: 0.6;
}

@media (max-width: 768px) {
    .markdown-badge {
        display: none;
    }
}

.notification {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--background-color);
    color: var(--text-color);
    padding: 12px 15px;
    border-radius: 40px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    display: flex;
    align-items: center;
}

.notification.show {
    opacity: 1;
}

.success-icon {
    background-color: var(--text-color);
    border-radius: 50%;
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-right: 10px;
    flex-shrink: 0;
    position: relative;
    top: 0;
}

.success-icon svg {
    stroke: white;
    position: relative;
    top: 0;
}

#floating-ad-container {
    position: fixed;
    bottom: 60px;
    right: 15px;
    width: 520px;
    max-width: 90%;
    background-color: #fcfcfc;
    border-radius: 10px;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.10);
    z-index: 1000;
    overflow: hidden;
    opacity: 0;
    transform: translateX(110%); 
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
    font-family: sans-serif;
    display: none;
}

#floating-ad-container.visible {
    opacity: 1;
    transform: translateX(0); 
}

#ad-content-area {
    padding: 10px;
    width: 100%;
    min-height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#ad-close-btn {
    position: absolute;
    top: 8px; 
    right: 8px;
    color: #333;
    border: none;
    border-radius: 5px;
    width: 30px; 
    height: 30px;
    font-size: 14px;
    font-weight: 600;
    line-height: 30px; 
    text-align: center;
    cursor: default; 
    opacity: 1;
    transform: scale(1); 
    transition: background-color 0.2s ease, color 0.2s ease;
    z-index: 1002;
}

 #ad-close-btn:not(:disabled) { 
    cursor: pointer;
    font-size: 20px;
    line-height: 28px; 
 }

 #ad-close-btn:not(:disabled):hover {
    background: rgba(0, 0, 0, 0.05);
 }

 #ad-close-btn:disabled {
    background: rgb(237, 237, 237);
    color: var(--text-color);
 }

 #ad-close-btn:hover {
    background: rgba(0, 0, 0, 0.15);
 }

#ad-close-btn.visible {
    opacity: 1;
    transform: scale(1); 
}

#ad-timer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001; 
    transition: opacity 0.5s ease 0.2s; 
}

 #ad-timer-overlay.hidden {
    opacity: 0;
    pointer-events: none;
 }

.ad-timer-text {
    font-size: 13px;
    color: #555;
    background-color: rgba(255, 255, 255, 0.7);
    padding: 4px 8px;
    border-radius: 4px;
}

#ad-countdown {
    font-weight: bold;
}

.ad-close-svg-icon {
    position: relative;
    top: 3.5px;
}