@font-face {
    font-family: 'Inter';
    src: url('/fonts/Inter/Inter_18pt-Regular.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Inter';
    src: url('/fonts/Inter/Inter_18pt-SemiBold.woff2') format('woff2');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Inter';
    src: url('/fonts/Inter/Inter_18pt-Bold.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Sarabun';
    src: url('/fonts/Sarabun/Sarabun-Regular.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Sarabun';
    src: url('/fonts/Sarabun/Sarabun-SemiBold.woff2') format('woff2');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

:root {
    --content-width: 1280px;
    --dialog-width: 400px;
    --form-width: 800px;
    --card-radius: 12px;
    --box-radius: 8px;

    --color-primary: #101956;
    --color-secondary: #FDAE26;
    --color-heading: #0F172A;
    --color-text: #334155;
    --color-text-white: #c5ccd8;
    --color-background: #F9FAFB;
    --color-forground: #fff;
    --color-button: #F3F4F6;
    --color-correct: #4ADE80;
    --color-incorrect: #de4a4a;

    --color-heading-black: black;
    --color-text-black: black;

    --color-dealflow: #101956;
    --color-header-border: none;
    --color-footer-background: #101956;
    --color-footer-text-white: #c5ccd8;
    --color-border-languages: #F9FAFB;
    --color-border-nav: transparent;

    --text-heading1: 32px;
    --text-heading2: 28px;
    --text-heading3: 20px;
    --text-paragraph: 16px;

    --shadow-card: 2px 2px 8px 0 #0000001f;
    --shadow-inset: inset 0 2px 4px #0000001f;

    --padding-button: 12px 16px;
    --padding-card: 16px;
    --padding-main: 24px;

    --color-header-bg: rgba(255, 255, 255, 0.92);
}

:root[data-theme="dark"] {
    --color-primary: #fff;
    --color-heading: #fff;
    --color-text: #9b9b9b;
    --color-text-white: #c5ccd8;
    --color-background: #1f1f1f;
    --color-forground: #303030;
    --color-button: #6e6e6eb2;
    --color-correct: #4ADE80;
    --color-incorrect: #ff3333;

    --color-heading-black: white;
    --color-text-black: #9b9b9b;

    --color-dealflow: #1d4ed8;
    --color-header-border: #6e6e6eb2;
    --color-footer-background: #1a1a2e;
    --color-border-languages: #6e6e6eb2;
    --color-border-nav: #6e6e6eb2;

    --color-header-bg: rgba(48, 48, 48, 0.92);
}

body {
    min-height: 100vh;
    width: 100%;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    flex-direction: column;
    background-color: var(--color-background);

    a {
        all: unset;
        cursor: pointer;
    }

    svg {
        display: block;
        flex-shrink: 0;
    }

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-size: 16px;
        font-weight: normal;
        font-family: "Inter", "Sarabun", system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    }

    main {
        flex-grow: 1;
        width: 100%;
        padding: 0 16px;
        display: flex;
        align-items: center;
        flex-direction: column;
        gap: 12px;

        section {
            width: 100%;
            max-width: 1280px;
        }
    }

    header {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        background-color: var(--color-header-bg);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        box-shadow: 0 0 8px 0 #00001f1f;
        border-bottom: 1px solid var(--color-header-border);
        padding: 4px 16px;
        position: sticky;
        top: 0;
        left: 0;
        z-index: 9998;

        .dealflow {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: var(--text-heading3);
            font-weight: bold;
            color: var(--color-dealflow);
            cursor: pointer;
        }

        nav {
            display: flex;
            align-items: center;
            gap: 8px;

            /* Desktop nav links */
            .nav-links {
                display: flex;
                align-items: center;
                gap: 2px;

                a {
                    padding: 8px 14px;
                    border-radius: var(--box-radius);
                    color: var(--color-text);
                    font-size: 15px;
                    white-space: nowrap;
                    transition: background-color 0.15s, color 0.15s;

                    &:hover {
                        background-color: var(--color-button);
                        color: var(--color-heading);
                    }
                }
            }

            /* Right controls: Language + Theme + Auth */
            .nav-right {
                display: flex;
                align-items: center;
                gap: 8px;
            }

            /* Mobile hamburger (hidden on desktop) */
            .hamburger-btn {
                all: unset;
                display: none;
                align-items: center;
                justify-content: center;
                width: 40px;
                height: 40px;
                border-radius: var(--box-radius);
                cursor: pointer;
                transition: background-color 0.15s;
                flex-shrink: 0;

                svg {
                    fill: var(--color-heading-black);
                }

                &:hover {
                    background-color: var(--color-button);
                }
            }

            .language {
                display: flex;
                align-items: center;
                gap: 8px;
                padding: 8px 12px;
                background-color: var(--color-forground);
                box-shadow: var(--shadow-card);
                border: 1px solid var(--color-border-languages);
                border-radius: 20px;
                position: relative;
                cursor: pointer;

                &.user {
                    padding: 0;
                    box-shadow: none;
                    border-color: transparent;
                }

                .inside-dropdown {
                    z-index: 9999;
                    position: absolute;
                    top: calc(100% + 8px);
                    right: 0;
                    display: flex;

                    justify-content: center;
                    align-items: start;
                    flex-direction: column;
                    background-color: var(--color-forground);
                    border-radius: var(--box-radius);
                    box-shadow: var(--shadow-card);
                    border: 1px solid var(--color-border-languages);
                    min-width: 140px;

                    &.hide {
                        display: none;
                    }

                    a {
                        padding: 10px 16px;
                        text-wrap: nowrap;
                        gap: 8px;
                        color: var(--color-text);
                        width: calc(100% - 32px);

                        display: flex;
                        align-items: center;
                        transition: background-color 0.15s;

                        &:hover {
                            background-color: var(--color-button);
                        }
                    }
                }

                .inside-dropdown>a:first-child {
                    border-top-left-radius: var(--box-radius);
                    border-top-right-radius: var(--box-radius);
                }

                .inside-dropdown>a:last-child {
                    border-bottom-left-radius: var(--box-radius);
                    border-bottom-right-radius: var(--box-radius);
                }
            }
        }

        a {
            color: var(--color-text);

            &.auth {
                padding: var(--padding-button);
                background-color: var(--color-secondary);
                border-radius: var(--box-radius);
                color: #111;
                font-weight: 600;
                text-wrap: nowrap;
            }

            &.logout {
                color: red !important;
            }
        }

        .profile {
            border-radius: 100%;
        }
    }

    footer {
        width: 100%;
        display: flex;
        align-items: center;
        flex-direction: column;
        gap: 12px;
        background-color: var(--color-footer-background);
        padding: var(--padding-card);

        h2 {
            color: #fff;
            font-size: var(--text-heading3);
            font-weight: bold;
        }

        p,
        a {
            color: var(--color-footer-text-white);
        }

        .content {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
            gap: 12px;

            .item {
                width: 100%;
                display: flex;
                align-items: start;
                flex-direction: column;
                gap: 12px;
            }

            .row {
                display: flex;
                align-items: center;
                gap: 8px;
            }
        }

        hr {
            width: calc(100% - 16px);
            border-color: #fff1;
            border-width: 1px;
        }
    }
}

.theme-toggle {
    all: unset;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    min-width: 42px;
    min-height: 42px;
    border-radius: 50%;
    background-color: var(--color-forground);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border-languages);
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;

    &:hover {
        background-color: var(--color-button);
    }

    .theme-icon {
        position: absolute;
        width: 20px;
        height: 20px;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .sun {
        color: #F59E0B;
        opacity: 1;
        transform: rotate(0deg) scale(1);
    }

    .moon {
        color: #6366F1;
        opacity: 0;
        transform: rotate(-90deg) scale(0);
    }

    &.dark .sun {
        opacity: 0;
        transform: rotate(90deg) scale(0);
    }

    &.dark .moon {
        color: #A5B4FC;
        opacity: 1;
        transform: rotate(0deg) scale(1);
    }
}

@media only screen and (max-width:800px) {
    body header {
        padding: 4px 12px;

        .dealflow {
            font-size: 18px;
        }

        nav .language.user {
            border-color: transparent;
        }
    }
}