/* ==========================================================================
   Intercode 2026 — Global Stylesheet
   ========================================================================== */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
    --bg-deep:       #0b0f19;
    --bg-surface:    #131a2b;
    --bg-elevated:   #1a2235;
    --bg-highlight:   #0051f0; /* used to highlight current ip on atsameip tool */
    --border-color:  #1e2a42;
    --border-subtle: #162033;

    --text-primary:   #e2e8f0;
    --text-secondary: #8892a4;
    --text-muted:     #5a6478;

    --accent:         #00bfff;
    --accent-hover:   #33cfff;
    --accent-glow:    rgba(0, 191, 255, 0.15);
    --accent-border:  rgba(0, 191, 255, 0.25);

    --link-external:         #6b8aff;
    --link-external-visited: #5470d6;
    --link-popup:            #7a8194;
    --link-popup-visited:    #5a6173;

    --font-body:    'Roboto', sans-serif;
    --font-display: 'Josefin Sans', sans-serif;
    --font-mono:    'SF Mono', 'Fira Code', 'Cascadia Code', monospace;

    --radius-sm:  4px;
    --radius-md:  8px;
    --radius-lg:  12px;

    --shadow-sm:  0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md:  0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg:  0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(0, 191, 255, 0.08);

    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;

    --container-max: 960px;
    --container-pad: 2rem;
}


/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}


/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 0.75rem;
}

h1 {
    font-size: 2.25rem;
    font-weight: 100;
    letter-spacing: 0.04em;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent), #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 1.4rem;
    font-weight: 100;
    letter-spacing: 0.02em;
    color: var(--text-primary);
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--border-color);
}

h3 {
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--text-primary);
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

strong {
    color: var(--text-primary);
    font-weight: 600;
}

small, .text-muted {
    color: var(--text-muted);
    font-size: 0.875rem;
}


/* --- Links --- */
a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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


/* --- Navigation --- */
.main-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: rgba(19, 26, 43, 0.92);
    border-bottom: 1px solid var(--border-color);
    /* margin-bottom: 1.5rem; */
}

.nav-menu {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--container-pad);
}

.nav-menu > ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    padding: 0;
    margin: 0;
}

.nav-menu > ul li {
    list-style: none;
    margin-bottom: 0;
}

.nav-menu > ul li a {
    display: block;
    padding: 0.85rem 1.25rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    text-decoration: none;
    transition: color var(--transition-fast), background var(--transition-fast);
    position: relative;
}

.nav-menu > ul li a:hover {
    color: var(--accent);
    background: var(--accent-glow);
    text-decoration: none;
}

.nav-menu > ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition-base);
}

.nav-menu > ul li a:hover::after {
    width: 70%;
}

/* Nav icons (Font Awesome fallback) */
.nav-icon {
    font-size: 0.85em;
    margin-right: 0.3em;
    vertical-align: baseline;
    opacity: 0.8;
}

.nav-menu > ul li a:hover .nav-icon {
    opacity: 1;
}

/* Nav section icons (image-based, like nav-home-logo) */
.nav-section-icon {
    height: 1.1em;
    width: auto;
    vertical-align: -0.15em;
    object-fit: contain;
    margin-right: 0.3em;
    opacity: 0.85;
}

.nav-menu > ul li a:hover .nav-section-icon {
    opacity: 1;
}

/* Section title icons (image-based, for h1) */
.section-title-icon {
    height: 1.15em;
    width: auto;
    vertical-align: -0.25em;
    object-fit: contain;
    /* margin-right: 0.35em; */
    opacity: 0.85;
}

/* Section card icons (homepage overview) */
.section-card-icon {
    height: 1.2em;
    width: auto;
    vertical-align: -0.15em;
    object-fit: contain;
    margin-right: 0.3em;
}

/* Page title icons (Font Awesome fallback) */
h1 .nav-icon {
    margin-right: 0.4em;
    opacity: 0.7;
}

/* Utility nav (auth + language) */
.nav-utility li a {
    font-size: 0.84rem;
    color: var(--text-muted);
    padding: 0.85rem 0.8rem;
}

.nav-utility .nav-lang {
    display: flex;
    gap: 0.4rem;
}

.nav-utility .nav-lang a {
    font-size: 0.68rem;
    padding: 0.85rem 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.nav-utility .nav-lang a.active_lang {
    color: var(--accent);
}

/* Nav home logo (replaces Font Awesome icon in Home link) */
.nav-home-logo {
    height: 1.1em;
    width: auto;
    vertical-align: -0.15em;
    object-fit: contain;
    margin-right: 0.3em;
}

/* Hamburger toggle — hidden on desktop */
.nav-toggle {
    display: none;
}


/* --- Breadcrumbs --- */
.breadcrumbs {
    padding: 0.65rem var(--container-pad);
    font-size: 0.82rem;
    color: var(--text-muted);
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
}

.breadcrumbs a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
    color: var(--accent);
    text-decoration: none;
}


/* --- Main Content Container --- */
#main_container {
    max-width: var(--container-max);
    width: 100%;
    margin: 0 auto;
    padding: 2.5rem var(--container-pad);
    flex: 1;
}


/* --- Definition Lists --- */
dl {
    margin-bottom: 1.5rem;
}

dt {
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-top: 0.9rem;
}

dt:first-child {
    margin-top: 0;
}

dd {
    color: var(--text-primary);
    margin-left: 0;
    padding: 0.25rem 0 0.75rem;
    border-bottom: 1px solid var(--border-subtle);
}


/* --- Action Links --- */
.action-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.5rem;
}

.action-links a {
    display: inline-block;
    padding: 0.55rem 1.2rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.88rem;
    text-decoration: none;
    transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.action-links a:hover {
    color: var(--accent);
    border-color: var(--accent-border);
    background: var(--accent-glow);
    text-decoration: none;
}


/* --- Form Subtitles --- */
.form-subtitle {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-top: -0.25rem;
    margin-bottom: 1.5rem;
}

.form-subtitle a {
    color: var(--accent);
    text-decoration: none;
}

.form-subtitle a:hover {
    text-decoration: underline;
}


/* --- Lists --- */
ul, ol {
    padding-left: 1.5rem;
    margin-bottom: 1.25rem;
}

li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

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

li strong {
    color: var(--text-primary);
}


/* --- Tables --- */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
}

th, td {
    padding: 0.65rem 0.9rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: var(--bg-elevated);
}

td {
    color: var(--text-secondary);
}

tr:nth-child(even) td {
    background: var(--bg-surface);
}

tr:nth-child(odd) td {
    background: transparent;
}

tr:hover td {
    background: var(--accent-glow);
}


/* --- Form Elements --- */
label {
    display: block;
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
    letter-spacing: 0.01em;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.checkbox-row label {
    margin-bottom: 0;
}

.checkbox-row input[type="checkbox"] {
    width: auto;
    margin: 0;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="url"],
input[type="tel"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 0.7rem 0.9rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-primary);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    margin-bottom: 1.25rem;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
input[type="url"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

input[type="submit"],
button,
.btn {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0.7rem 1.6rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--bg-deep);
    background: var(--accent);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    letter-spacing: 0.02em;
    transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="submit"]:hover,
button:hover,
.btn:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 191, 255, 0.25);
}

input[type="submit"]:active,
button:active,
.btn:active {
    transform: translateY(0);
}


/* --- CTA (Call to Action) --- */
.cta {
    display: inline-block;
    padding: 0.9rem 2.2rem;
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--bg-deep);
    background: linear-gradient(135deg, var(--accent), #33cfff);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    letter-spacing: 0.03em;
    text-decoration: none;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast);
    box-shadow: 0 4px 20px rgba(0, 191, 255, 0.25);
}

.cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(0, 191, 255, 0.35);
    filter: brightness(1.08);
    color: var(--bg-deep);
    text-decoration: none;
}

.cta:active {
    transform: translateY(0);
    box-shadow: 0 2px 12px rgba(0, 191, 255, 0.2);
}

.cta-section {
    text-align: center;
    padding: 2.5rem 0;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.cta-section p {
    margin-bottom: 1.25rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
}


/* --- Footer --- */
.footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    padding: 2rem var(--container-pad);
    text-align: center;
    margin-top: auto;
}

.footer p {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 0.3rem;
}

.footer a {
    color: var(--text-secondary);
}

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


/* --- Easter Egg (global, reusable) --- */
.easter-egg {
    display: flex;
    justify-content: center;
    padding: 2rem 0 1rem;
}

/* .easter-egg-btn {
    width: 28px;
    height: 34px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    cursor: default;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    opacity: 0.25;
} */
.easter-egg-btn {
    position: relative;
    width: 28px;
    height: 34px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    cursor: pointer;
    opacity: 0.28;
    transition:
        opacity var(--transition-fast),
        border-color var(--transition-fast),
        transform var(--transition-fast),
        box-shadow var(--transition-fast);
    overflow: hidden;
}

/* .easter-egg-btn:hover {
    opacity: 0.4;
} */
.easter-egg-btn:hover {
    opacity: 0.42;
}

/* Crack progression — inset shadows simulate hairline cracks */
/* .easter-egg-btn.egg-crack-1  { opacity:.3;  box-shadow: inset 1px 2px 0 -0.5px var(--border-color); }
.easter-egg-btn.egg-crack-2  { opacity:.35; box-shadow: inset 1px 2px 0 -0.5px var(--border-color), inset -2px 4px 0 -0.5px var(--border-color); }
.easter-egg-btn.egg-crack-3  { opacity:.4;  box-shadow: inset 1px 2px 0 -0.5px var(--border-color), inset -2px 4px 0 -0.5px var(--border-color), inset 0 -3px 0 -0.5px var(--border-color); }
.easter-egg-btn.egg-crack-4  { opacity:.45; box-shadow: inset 1px 2px 0 0px var(--border-color), inset -2px 4px 0 0px var(--border-color), inset 0 -3px 0 0px var(--border-color), inset 3px 0 0 -0.5px var(--border-color); }
.easter-egg-btn.egg-crack-5  { opacity:.5;  box-shadow: inset 1px 2px 0 0px var(--border-color), inset -2px 4px 0 0px var(--border-color), inset 0 -3px 0 0px var(--border-color), inset 3px 0 0 0px var(--border-color), inset -1px -5px 0 0px var(--border-color); }
.easter-egg-btn.egg-crack-6  { opacity:.55; border-color: var(--text-muted); box-shadow: inset 1px 2px 0 0px var(--text-muted), inset -2px 4px 0 0px var(--text-muted), inset 0 -3px 0 0px var(--text-muted), inset 3px 0 0 0px var(--text-muted), inset -1px -5px 0 0px var(--text-muted); }
.easter-egg-btn.egg-crack-7  { opacity:.6;  border-color: var(--text-muted); box-shadow: inset 1px 2px 1px 0px var(--text-muted), inset -2px 4px 1px 0px var(--text-muted), inset 0 -3px 1px 0px var(--text-muted), inset 3px 0 1px 0px var(--text-muted), inset -1px -5px 1px 0px var(--text-muted), inset 2px -1px 0 0px var(--text-muted); }
.easter-egg-btn.egg-crack-8  { opacity:.7;  border-color: var(--text-secondary); box-shadow: inset 1px 2px 1px 0px var(--text-secondary), inset -2px 4px 1px 0px var(--text-secondary), inset 0 -3px 1px 0px var(--text-secondary), inset 3px 0 1px 0px var(--text-secondary), inset -1px -5px 1px 0px var(--text-secondary), inset 2px -1px 1px 0px var(--text-secondary); }
.easter-egg-btn.egg-crack-9  { opacity:.8;  border-color: var(--text-secondary); box-shadow: inset 1px 2px 2px 0px var(--text-secondary), inset -2px 4px 2px 0px var(--text-secondary), inset 0 -3px 2px 0px var(--text-secondary), inset 3px 0 2px 0px var(--text-secondary), inset -1px -5px 2px 0px var(--text-secondary), inset 2px -1px 2px 0px var(--text-secondary), inset -3px 1px 1px 0px var(--text-secondary); }
.easter-egg-btn.egg-crack-10 { opacity:.9;  border-color: var(--text-primary); box-shadow: inset 1px 2px 2px 0px var(--text-primary), inset -2px 4px 2px 0px var(--text-primary), inset 0 -3px 2px 0px var(--text-primary), inset 3px 0 2px 0px var(--text-primary), inset -1px -5px 2px 0px var(--text-primary), inset 2px -1px 2px 0px var(--text-primary), inset -3px 1px 2px 0px var(--text-primary); } */

@keyframes egg-shake {
    0%, 100% { transform: translateX(0); }
    20%  { transform: translateX(-2px) rotate(-2deg); }
    40%  { transform: translateX(2px) rotate(2deg); }
    60%  { transform: translateX(-1px) rotate(-1deg); }
    80%  { transform: translateX(1px) rotate(1deg); }
}
.easter-egg-btn.egg-shake {
    animation: egg-shake 0.3s ease;
}



.easter-egg-btn::before,
.easter-egg-btn::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    opacity: 0;
    transition: opacity 120ms ease;
}

/* Main crack network */
.easter-egg-btn::before {
    background-repeat: no-repeat;
}

/* Extra stress / split highlight */
.easter-egg-btn::after {
    background-repeat: no-repeat;
}




/* 1 */
.easter-egg-btn.egg-crack-1::before {
    opacity: .55;
    background-image:
        linear-gradient(135deg, transparent 46%, var(--text-muted) 47%, var(--text-muted) 53%, transparent 54%);
    background-size: 8px 8px;
    background-position: 11px 5px;
}

/* 2 */
.easter-egg-btn.egg-crack-2::before {
    opacity: .6;
    background-image:
        linear-gradient(135deg, transparent 46%, var(--text-muted) 47%, var(--text-muted) 53%, transparent 54%),
        linear-gradient(45deg, transparent 46%, var(--text-muted) 47%, var(--text-muted) 53%, transparent 54%);
    background-size: 8px 8px, 7px 7px;
    background-position: 11px 5px, 13px 10px;
}

/* 3 */
.easter-egg-btn.egg-crack-3::before {
    opacity: .65;
    background-image:
        linear-gradient(135deg, transparent 46%, var(--text-muted) 47%, var(--text-muted) 53%, transparent 54%),
        linear-gradient(45deg, transparent 46%, var(--text-muted) 47%, var(--text-muted) 53%, transparent 54%),
        linear-gradient(135deg, transparent 46%, var(--text-muted) 47%, var(--text-muted) 53%, transparent 54%);
    background-size: 8px 8px, 7px 7px, 9px 9px;
    background-position: 11px 5px, 13px 10px, 10px 13px;
}

/* 4 */
.easter-egg-btn.egg-crack-4::before {
    opacity: .68;
    background-image:
        linear-gradient(135deg, transparent 46%, var(--text-secondary) 47%, var(--text-secondary) 53%, transparent 54%),
        linear-gradient(45deg, transparent 46%, var(--text-secondary) 47%, var(--text-secondary) 53%, transparent 54%),
        linear-gradient(135deg, transparent 46%, var(--text-secondary) 47%, var(--text-secondary) 53%, transparent 54%),
        linear-gradient(45deg, transparent 46%, var(--text-secondary) 47%, var(--text-secondary) 53%, transparent 54%);
    background-size: 8px 8px, 7px 7px, 9px 9px, 7px 7px;
    background-position: 11px 5px, 13px 10px, 10px 13px, 8px 16px;
}

/* 5 */
.easter-egg-btn.egg-crack-5::before {
    opacity: .72;
    background-image:
        linear-gradient(135deg, transparent 46%, var(--text-secondary) 47%, var(--text-secondary) 53%, transparent 54%),
        linear-gradient(45deg, transparent 46%, var(--text-secondary) 47%, var(--text-secondary) 53%, transparent 54%),
        linear-gradient(135deg, transparent 46%, var(--text-secondary) 47%, var(--text-secondary) 53%, transparent 54%),
        linear-gradient(45deg, transparent 46%, var(--text-secondary) 47%, var(--text-secondary) 53%, transparent 54%),
        linear-gradient(135deg, transparent 46%, var(--text-secondary) 47%, var(--text-secondary) 53%, transparent 54%);
    background-size: 8px 8px, 7px 7px, 9px 9px, 7px 7px, 8px 8px;
    background-position: 11px 5px, 13px 10px, 10px 13px, 8px 16px, 15px 16px;
}

/* 6 */
.easter-egg-btn.egg-crack-6 {
    border-color: var(--text-muted);
}
.easter-egg-btn.egg-crack-6::before {
    opacity: .78;
    background-image:
        linear-gradient(135deg, transparent 46%, var(--text-primary) 47%, var(--text-primary) 53%, transparent 54%),
        linear-gradient(45deg, transparent 46%, var(--text-primary) 47%, var(--text-primary) 53%, transparent 54%),
        linear-gradient(135deg, transparent 46%, var(--text-primary) 47%, var(--text-primary) 53%, transparent 54%),
        linear-gradient(45deg, transparent 46%, var(--text-primary) 47%, var(--text-primary) 53%, transparent 54%),
        linear-gradient(135deg, transparent 46%, var(--text-primary) 47%, var(--text-primary) 53%, transparent 54%),
        linear-gradient(45deg, transparent 46%, var(--text-primary) 47%, var(--text-primary) 53%, transparent 54%);
    background-size: 8px 8px, 7px 7px, 9px 9px, 7px 7px, 8px 8px, 6px 6px;
    background-position: 11px 5px, 13px 10px, 10px 13px, 8px 16px, 15px 16px, 16px 9px;
}

/* 7 */
.easter-egg-btn.egg-crack-7 {
    border-color: var(--text-muted);
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--text-muted) 20%, transparent);
}
.easter-egg-btn.egg-crack-7::after {
    opacity: .5;
    background-image:
        linear-gradient(to right, transparent 47%, color-mix(in srgb, var(--text-primary) 45%, transparent) 50%, transparent 53%);
    background-size: 2px 18px;
    background-position: 13px 8px;
}

/* 8 */
.easter-egg-btn.egg-crack-8 {
    opacity: .8;
    border-color: var(--text-secondary);
}
.easter-egg-btn.egg-crack-8::after {
    opacity: .65;
    background-image:
        linear-gradient(to right, transparent 47%, var(--text-primary) 50%, transparent 53%),
        linear-gradient(135deg, transparent 46%, var(--text-primary) 47%, var(--text-primary) 53%, transparent 54%);
    background-size: 2px 20px, 8px 8px;
    background-position: 13px 8px, 6px 19px;
}

/* 9 */
.easter-egg-btn.egg-crack-9 {
    opacity: .88;
    border-color: var(--text-secondary);
    transform: rotate(-1deg);
}
.easter-egg-btn.egg-crack-9::after {
    opacity: .8;
    background-image:
        linear-gradient(to right, transparent 47%, var(--text-primary) 50%, transparent 53%),
        linear-gradient(135deg, transparent 46%, var(--text-primary) 47%, var(--text-primary) 53%, transparent 54%),
        linear-gradient(45deg, transparent 46%, var(--text-primary) 47%, var(--text-primary) 53%, transparent 54%);
    background-size: 2px 20px, 8px 8px, 8px 8px;
    background-position: 13px 8px, 6px 19px, 16px 19px;
}

/* 10 */
.easter-egg-btn.egg-crack-10 {
    opacity: .95;
    border-color: var(--text-primary);
    box-shadow:
        0 0 0 1px color-mix(in srgb, var(--text-primary) 20%, transparent),
        0 2px 6px rgba(0,0,0,.08);
    transform: rotate(-2deg) scale(1.03);
}
.easter-egg-btn.egg-crack-10::after {
    opacity: .95;
    background-image:
        linear-gradient(to right, transparent 48%, var(--text-primary) 50%, transparent 52%),
        linear-gradient(135deg, transparent 48%, var(--text-primary) 49%, var(--text-primary) 51%, transparent 52%),
        linear-gradient(45deg, transparent 48%, var(--text-primary) 49%, var(--text-primary) 51%, transparent 52%),
        linear-gradient(135deg, transparent 48%, var(--text-primary) 49%, var(--text-primary) 51%, transparent 52%);
    background-size: 1px 21px, 8px 8px, 8px 8px, 7px 7px;
    background-position: 13px 8px, 6px 19px, 16px 19px, 11px 3px;
}








/* --- Messages --- */
.message {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    line-height: 1.5;
}

.message-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.message a {
    color: inherit;
    text-decoration: underline;
}

.message a:hover {
    filter: brightness(1.2);
}

.message.success {
    background: rgba(40, 167, 69, 0.12);
    color: #6fcf87;
    border: 1px solid rgba(40, 167, 69, 0.25);
}

.message.error {
    background: rgba(220, 53, 69, 0.12);
    color: #f07178;
    border: 1px solid rgba(220, 53, 69, 0.25);
}

.message.notice {
    background: rgba(0, 191, 255, 0.1);
    color: var(--accent);
    border: 1px solid var(--accent-border);
}


/* --- Utility: HR / Dividers --- */
hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}


/* --- Selection --- */
::selection {
    background: rgba(0, 191, 255, 0.3);
    color: #fff;
}


/* --- Scrollbar (Webkit) --- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-deep);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}




/* --- Captcha (shared) --- */
.captcha-section {
    margin-top: 0.25rem;
    margin-bottom: 1.25rem;
}

.captcha-image-wrap {
    margin: 0.5rem 0;
}

.imver {
    max-width: 100%;
    border: inset 9px;
    border-radius: 60px;
    display: block;
}

.captcha-input-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin: 0.5rem 0;
}

.captcha-input-row input[type="text"] {
    flex: 1;
    margin-bottom: 0;
}

.reload-captcha-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    flex-shrink: 0;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.reload-captcha-link:hover {
    color: var(--accent);
    border-color: var(--accent-border);
    background: var(--accent-glow);
    text-decoration: none;
}

.captcha-explain {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.spinning {
    animation: spin 1s linear infinite;
    display: inline-block;
}

@keyframes spin {
    0%   { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.captcha-blur-out {
    filter: blur(4px);
    opacity: 0.5;
    transition: filter 0.3s, opacity 0.3s;
}

.captcha-blur-in {
    filter: blur(0px);
    opacity: 1;
    transition: filter 0.3s, opacity 0.3s;
}


.nav-lang a.selected_lang {
    /* color: var(--accent);
    font-weight: 500; */
    display: none;
}

.user-info {
    text-align: right;
    padding: 0.5rem var(--container-pad);
    font-size: 0.82rem;
    color: var(--text-muted);
}
.user-info-mobile {
    display: none;
    padding: 0.5rem var(--container-pad);
    font-size: 0.82rem;
    color: var(--text-muted);
}





/* my confirm */
#my-confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999999;
}

#my-confirm-overlay.myc-hidden {
  display: none;
}

.myc-box {
  /* background: #fff; */
  padding: 20px 24px;
  border-radius: 10px;
  min-width: 280px;
  max-width: 400px;
  font-family: sans-serif;
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
  border: 1px solid;
}

.myc-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}

#my-confirm-ok, #my-confirm-cancel {
  padding: 7px 16px;
  cursor: pointer;
}






/* --- Responsive --- */
@media (max-width: 768px) {
    :root {
        --container-pad: 1.25rem;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.2rem;
    }

    #main_container {
        padding: 1.5rem var(--container-pad);
    }

    /* Hamburger visible */
    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 46px;
        height: 46px;
        margin: 0 var(--container-pad) 0 auto;
        padding: 0;
        background: none;
        border: none;
        color: var(--text-secondary);
        font-size: 1.25rem;
        cursor: pointer;
        transition: color var(--transition-fast);
    }

    .nav-toggle:hover {
        color: var(--accent);
    }

    /* Collapse nav by default on mobile */
    .nav-menu {
        display: none;
        flex-direction: column;
        padding: 0;
        border-top: 1px solid var(--border-subtle);
    }

    .main-nav.nav-open .nav-menu {
        display: flex;
        flex-direction: column;
    }

    .nav-menu > ul {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }

    .nav-menu > ul li a {
        padding: 0.8rem 1.25rem;
        font-size: 0.88rem;
        border-bottom: 1px solid var(--border-subtle);
    }

    .nav-menu > ul li a::after {
        display: none;
    }

    .nav-utility {
        border-top: 1px solid var(--border-color);
    }

    .nav-utility li a {
        font-size: 0.84rem;
        padding: 0.8rem 1.25rem;
    }

    .nav-utility .nav-lang {
        /*flex align to right on mobile*/
        display: flex;
        justify-content: flex-end;
        /* gap: 0.3rem; */
        padding-right: 0.5rem;
    }

    .nav-utility .nav-lang a {
        font-size: 0.76rem;
        padding: 0.8rem 1.25rem;
        text-transform: uppercase;
        letter-spacing: 0.06em;
    }

    .user-info {
        display: none;
    }
    .user-info-mobile {
        display: block;
    }
}