:root,
[data-theme="light"] {
    --bg-primary: #f8f8f7;
    --bg-secondary: #eef2f6;
    --bg-tertiary: #e1e7ee;
    --surface-muted: rgba(255, 255, 255, 0.72);
    --text-primary: #18212b;
    --text-secondary: #5c6978;
    --text-tertiary: #8894a3;
    --border-color: #d9e0e7;
    --accent-color: #295ea8;
    --accent-hover: #214c87;
    --accent-soft: rgba(41, 94, 168, 0.1);
    --nav-bg: rgba(248, 248, 247, 0.88);
    --nav-text: #344252;
    --nav-border: rgba(217, 224, 231, 0.92);
    --card-bg: rgba(255, 255, 255, 0.9);
    --input-bg: #ffffff;
    --shadow: 0 12px 30px rgba(24, 33, 43, 0.07);
    --shadow-lg: 0 24px 60px rgba(24, 33, 43, 0.1);
}

[data-theme="dark"] {
    --bg-primary: #0f1720;
    --bg-secondary: #17212d;
    --bg-tertiary: #223041;
    --surface-muted: rgba(20, 28, 39, 0.78);
    --text-primary: #eef3f8;
    --text-secondary: #b8c3d1;
    --text-tertiary: #8a97a7;
    --border-color: #2d3d4e;
    --accent-color: #7db1ff;
    --accent-hover: #a5c8ff;
    --accent-soft: rgba(125, 177, 255, 0.16);
    --nav-bg: rgba(15, 23, 32, 0.88);
    --nav-text: #d6e1ec;
    --nav-border: rgba(45, 61, 78, 0.96);
    --card-bg: rgba(22, 32, 43, 0.92);
    --input-bg: #1b2836;
    --shadow: 0 18px 36px rgba(0, 0, 0, 0.28);
    --shadow-lg: 0 28px 72px rgba(0, 0, 0, 0.35);
}

[data-theme="gray"] {
    --bg-primary: #efefec;
    --bg-secondary: #dfe1dc;
    --bg-tertiary: #cfd3cd;
    --surface-muted: rgba(255, 255, 255, 0.62);
    --text-primary: #242623;
    --text-secondary: #4f5550;
    --text-tertiary: #6f756f;
    --border-color: #c2c8c1;
    --accent-color: #3f6ea5;
    --accent-hover: #335983;
    --accent-soft: rgba(63, 110, 165, 0.12);
    --nav-bg: rgba(239, 239, 236, 0.9);
    --nav-text: #313732;
    --nav-border: rgba(194, 200, 193, 0.94);
    --card-bg: rgba(252, 252, 250, 0.88);
    --input-bg: #fafaf8;
    --shadow: 0 12px 26px rgba(36, 38, 35, 0.08);
    --shadow-lg: 0 22px 48px rgba(36, 38, 35, 0.12);
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    font-family: "Manrope", sans-serif;
    line-height: 1.5;
    transition: background-color 0.25s ease, color 0.25s ease;
}

body::before {
    content: "";
    position: fixed;
    inset: 0 0 auto 0;
    height: 24rem;
    pointer-events: none;
    background:
        radial-gradient(circle at 0% 0%, rgba(41, 94, 168, 0.12), transparent 40%),
        radial-gradient(circle at 85% 0%, rgba(255, 255, 255, 0.65), transparent 32%);
    z-index: -1;
}

[data-theme="dark"] body::before {
    background:
        radial-gradient(circle at 0% 0%, rgba(125, 177, 255, 0.16), transparent 42%),
        radial-gradient(circle at 85% 0%, rgba(41, 94, 168, 0.18), transparent 36%);
}

a,
button,
input,
textarea,
select,
.card,
.theme-toggle,
.app-nav-link,
.app-auth-link {
    transition:
        background-color 0.2s ease,
        color 0.2s ease,
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        transform 0.2s ease;
}

a {
    color: var(--accent-color);
}

a:hover {
    color: var(--accent-hover);
}

.app-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-container {
    width: min(1200px, calc(100% - 2rem));
    margin: 0 auto;
}

.app-nav {
    position: sticky;
    top: 0;
    z-index: 40;
    padding: 1rem 0 0;
}

.app-nav-frame {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.9rem 1.1rem;
    border: 1px solid var(--nav-border);
    border-radius: 1.5rem;
    background: var(--nav-bg);
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow);
}

.app-nav-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.9rem;
    color: var(--text-primary) !important;
}

.app-nav-brand:hover {
    color: var(--text-primary) !important;
}

.app-nav-brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 1rem;
    border: 1px solid rgba(41, 94, 168, 0.16);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(227, 236, 247, 0.82));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.app-nav-brand-mark img {
    width: 1.5rem;
    height: 1.5rem;
}

.app-nav-brand-name {
    display: block;
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1;
}

.app-nav-brand-subtitle {
    display: block;
    margin-top: 0.18rem;
    font-size: 0.77rem;
    color: var(--text-tertiary);
}

.app-nav-links {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.app-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.72rem 1rem;
    border-radius: 999px;
    color: var(--nav-text) !important;
    font-size: 0.94rem;
    font-weight: 700;
}

.app-nav-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary) !important;
}

.app-nav-link.is-active {
    background: var(--accent-soft);
    color: var(--accent-color) !important;
    box-shadow: inset 0 0 0 1px rgba(41, 94, 168, 0.14);
}

.app-nav-link.compact {
    padding: 0.66rem 0.88rem;
}

.app-nav-search {
    position: relative;
    width: min(18rem, 100%);
}

.app-nav-search input {
    width: 100%;
    padding: 0.8rem 2.75rem 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: var(--input-bg);
    color: var(--text-primary);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.65);
}

.app-nav-search button {
    position: absolute;
    right: 0.9rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
}

.app-nav-meta,
.app-user-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.56rem 0.9rem;
    border-radius: 999px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
}

.app-auth-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.72rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: var(--card-bg);
    color: var(--text-primary) !important;
    font-weight: 700;
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.45);
}

.app-auth-link:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.app-auth-link.primary {
    border-color: transparent;
    background: var(--accent-color);
    color: #ffffff !important;
    box-shadow: 0 12px 28px rgba(41, 94, 168, 0.22);
}

.app-auth-link.primary:hover {
    background: var(--accent-hover);
}

.app-mobile-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.9rem;
    height: 2.9rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-secondary);
}

.app-mobile-menu {
    margin-top: 0.75rem;
    border: 1px solid var(--nav-border);
    border-radius: 1.25rem;
    background: var(--nav-bg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.app-mobile-menu a,
.app-mobile-menu div {
    display: block;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid rgba(217, 224, 231, 0.8);
    color: var(--text-primary) !important;
}

.app-mobile-menu a:last-child,
.app-mobile-menu div:last-child {
    border-bottom: 0;
}

.app-main {
    flex: 1;
    width: min(1200px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 2rem 0 3.5rem;
}

.app-footer {
    padding: 0 0 2rem;
}

.app-footer-frame {
    border: 1px solid var(--nav-border);
    border-radius: 1.75rem;
    background: var(--surface-muted);
    backdrop-filter: blur(14px);
    box-shadow: var(--shadow);
    padding: 1.5rem 1.35rem;
}

.app-footer-grid {
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.app-footer-brand {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-primary);
}

.app-footer-copy {
    margin-top: 0.45rem;
    max-width: 30rem;
    font-size: 0.94rem;
    color: var(--text-secondary);
}

.app-footer-links {
    display: flex;
    gap: 0.7rem;
    flex-wrap: wrap;
    align-items: flex-start;
}

.app-footer-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.65rem 0.9rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.52);
    color: var(--text-secondary) !important;
    font-weight: 700;
}

.app-footer-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary) !important;
}

.app-footer-bottom {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(217, 224, 231, 0.76);
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    color: var(--text-tertiary);
    font-size: 0.88rem;
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.8rem;
    height: 2.8rem;
    border-radius: 1rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.theme-toggle:hover {
    background: var(--card-bg);
    transform: translateY(-1px);
}

.theme-toggle:focus {
    outline: 2px solid rgba(41, 94, 168, 0.28);
    outline-offset: 2px;
}

.theme-dropdown {
    position: absolute;
    top: calc(100% + 0.6rem);
    right: 0;
    min-width: 11rem;
    padding: 0.35rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    z-index: 50;
    display: none;
}

.theme-dropdown.show {
    display: block;
}

.theme-dropdown button {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.7rem 0.85rem;
    border: 0;
    border-radius: 0.8rem;
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    text-align: left;
    cursor: pointer;
}

.theme-dropdown button:hover {
    background: var(--bg-tertiary);
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 1.25rem;
    box-shadow: var(--shadow);
}

input,
textarea,
select {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

input:focus,
textarea:focus,
select:focus {
    outline: 2px solid rgba(41, 94, 168, 0.22);
    outline-offset: 0;
    border-color: rgba(41, 94, 168, 0.36);
}

.btn-primary {
    background-color: var(--accent-color);
    color: #ffffff;
    border: none;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--card-bg);
}

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }
.bg-primary { background-color: var(--bg-primary); }
.bg-secondary { background-color: var(--bg-secondary); }
.bg-tertiary { background-color: var(--bg-tertiary); }
.border-color { border-color: var(--border-color); }

@media (max-width: 1024px) {
    .app-nav-brand-subtitle {
        display: none;
    }

    .app-main,
    .app-container {
        width: min(100%, calc(100% - 1.25rem));
    }
}

@media (max-width: 640px) {
    .app-nav {
        padding-top: 0.65rem;
    }

    .app-nav-frame,
    .app-footer-frame {
        border-radius: 1.25rem;
    }

    .app-main {
        padding-top: 1.25rem;
        padding-bottom: 2.5rem;
    }
}