/* ==========================================================
   CYBER OPS — AWS CHALLENGE TERMINAL
   Palette:
   #131920 — Background
   #102d40 — Panels
   #ff9900 — Amber accent
   #42b3eb — Electric blue
   #ffffff — Text
   ========================================================== */

:root {
    color-scheme: dark;

    --bg: #131920;
    --panel: #102d40;
    --orange: #ff9900;
    --blue: #42b3eb;
    --white: #ffffff;

    --muted: #42b3eb;
    --border: rgba(66, 179, 235, 0.28);
    --glow-blue: 0 0 12px rgba(66, 179, 235, 0.16);
    --glow-orange: 0 0 12px rgba(255, 153, 0, 0.18);

    --radius: 8px;
    --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code",
                 "Courier New", monospace;
}

/* Reset */

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    padding: 40px 24px;
    background-color: var(--bg);
    background-image:
        linear-gradient(rgba(66, 179, 235, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(66, 179, 235, 0.035) 1px, transparent 1px);
    background-size: 32px 32px;
    color: var(--white);
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.7;
}

/* Main layout */

body > header,
body > main,
body > footer {
    width: 100%;
    max-width: 960px;
    margin-right: auto;
    margin-left: auto;
}

header {
    position: relative;
    margin-bottom: 32px;
    padding: 28px;
    overflow: hidden;
    background: var(--panel);
    border: 1px solid var(--border);
    border-top: 3px solid var(--orange);
    border-radius: var(--radius);
    box-shadow: var(--glow-blue);
}

header::after {
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(
        circle at top right,
        rgba(66, 179, 235, 0.12),
        transparent 70%
    );
    content: "";
    pointer-events: none;
}

/* Typography */

h1,
h2,
h3 {
    font-family: var(--font-mono);
    line-height: 1.35;
    overflow-wrap: anywhere;
}

h1 {
    margin: 0 0 12px;
    color: var(--orange);
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    letter-spacing: -1px;
    text-shadow: 0 0 18px rgba(255, 153, 0, 0.22);
}

h1::before {
    color: var(--blue);
    content: "> ";
}

h2 {
    color: var(--blue);
    font-size: 1.15rem;
}

h2::before {
    margin-right: 10px;
    color: var(--orange);
    content: "//";
}

h3 {
    color: var(--orange);
}

p {
    margin: 12px 0;
}

a {
    color: var(--blue);
    text-decoration: none;
    overflow-wrap: anywhere;
}

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

/* Search */

#search {
    display: block;
    width: 100%;
    margin-top: 24px;
    padding: 14px 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    outline: none;
    color: var(--white);
    font: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

#search::placeholder {
    color: var(--blue);
    opacity: 0.65;
}

#search:focus {
    border-color: var(--blue);
    box-shadow: var(--glow-blue);
}

/* Progress */

#progress {
    display: inline-block;
    margin-top: 12px;
    padding: 6px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--orange);
    font-weight: 700;
}

/* Challenge cards */

.challenge {
    position: relative;
    margin: 20px 0;
    padding: 24px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-left: 3px solid var(--blue);
    border-radius: var(--radius);
    box-shadow: var(--glow-blue);
    transition:
        border-color 0.2s,
        transform 0.2s,
        box-shadow 0.2s;
}

.challenge:hover {
    border-color: var(--blue);
    box-shadow: 0 0 20px rgba(66, 179, 235, 0.12);
    transform: translateY(-2px);
}

.challenge h2 {
    margin-top: 0;
}

.description {
    color: var(--white);
    line-height: 1.85;
    overflow-wrap: anywhere;
}

.description strong {
    color: var(--orange);
    font-weight: 700;
}

.description code {
    padding: 2px 6px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--blue);
    font-family: var(--font-mono);
    font-size: 0.92em;
}

.description pre {
    padding: 16px;
    overflow-x: auto;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--blue);
}

.description pre code {
    padding: 0;
    border: 0;
}

/* Flag submission */

.flag-form {
    display: flex;
    gap: 10px;
    margin-top: 24px;
}

.flag-input {
    flex: 1;
    width: 100%;
    min-width: 0;
    padding: 12px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 5px;
    outline: none;
    color: var(--white);
    font-family: var(--font-mono);
    font-size: 13px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.flag-input::placeholder {
    color: var(--blue);
    opacity: 0.55;
}

.flag-input:focus {
    border-color: var(--orange);
    box-shadow: var(--glow-orange);
}

.flag-input:disabled {
    cursor: not-allowed;
    opacity: 0.8;
}

/* Buttons */

button {
    padding: 12px 18px;
    background: var(--orange);
    border: 1px solid var(--orange);
    border-radius: 5px;
    color: var(--bg);
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    transition:
        background 0.2s,
        color 0.2s,
        box-shadow 0.2s;
}

button::before {
    content: "[ ";
}

button::after {
    content: " ]";
}

button:hover:not(:disabled) {
    background: var(--white);
    border-color: var(--white);
    box-shadow: var(--glow-orange);
}

button:focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 3px;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

/* Submission feedback */

.status {
    min-height: 1.7em;
    margin-top: 12px;
    font-size: 13px;
}

.status.success {
    color: var(--blue);
}

.status.success::before {
    content: "[ OK ] ";
    color: var(--orange);
    font-weight: 800;
}

.status.error {
    color: var(--orange);
}

.status.error::before {
    content: "[ ERROR ] ";
    font-weight: 800;
}

/* Completed challenges */

.challenge.completed {
    background: var(--panel);
    border-color: var(--orange);
    border-left: 3px solid var(--orange);
    box-shadow: var(--glow-orange);
}

.challenge.completed h2 {
    color: var(--orange);
}

.challenge.completed .flag-input {
    border-color: var(--orange);
}

.badge {
    display: none;
    margin-left: 8px;
    padding: 3px 8px;
    border: 1px solid var(--orange);
    border-radius: 4px;
    color: var(--orange);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 1px;
    vertical-align: middle;
}

.badge::before {
    content: "[ ";
}

.badge::after {
    content: " ]";
}

.completed .badge {
    display: inline-block;
}

/* Keyboard accessibility */

:focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 3px;
}

/* Selection */

::selection {
    background: var(--orange);
    color: var(--bg);
}

/* Utility */

[hidden] {
    display: none !important;
}

/* Responsive layout */

@media (max-width: 600px) {
    body {
        padding: 20px 12px;
        font-size: 13px;
    }

    header,
    .challenge {
        padding: 18px;
    }

    .flag-form {
        flex-direction: column;
    }

    .flag-form button {
        width: 100%;
    }

    .badge {
        display: block;
        width: fit-content;
        margin: 8px 0 0;
    }
}

/* Respect reduced-motion preferences */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}


/* ==========================================================
   OUTER CONTAINER — TERMINAL FRAME
   ========================================================== */

body {
    position: relative;
    isolation: isolate;
}

/* Main application frame */
body > header,
body > main,
body > footer,
#gate {
    width: 100%;
    max-width: 960px;
    margin-right: auto;
    margin-left: auto;
}

/* Frame around the entire challenge interface */
body:has(#challenges) {
    padding: 32px 24px;
}

body:has(#challenges)::before {
    content: "";
    position: fixed;
    inset: 12px;
    border: 1px solid rgba(66, 179, 235, 0.18);
    border-radius: 10px;
    pointer-events: none;
    z-index: -1;
}

/* Terminal header */
body > header {
    padding: 32px;
    background:
        linear-gradient(
            135deg,
            rgba(66, 179, 235, 0.06),
            transparent 60%
        ),
        var(--panel);
    border: 1px solid var(--border);
    border-top: 3px solid var(--orange);
    border-radius: 8px;
    box-shadow:
        0 0 25px rgba(66, 179, 235, 0.07),
        inset 0 1px rgba(255, 255, 255, 0.025);
}

/* Outer frame for the complete challenge list */
body > main#challenges {
    padding: 8px;
    background: rgba(16, 45, 64, 0.3);
    border: 1px solid rgba(66, 179, 235, 0.12);
    border-radius: 10px;
}

/* Locked screen outer container */
#gate {
    max-width: 560px;
    margin: 12vh auto;
    padding: 36px;
    background:
        linear-gradient(
            145deg,
            rgba(66, 179, 235, 0.06),
            transparent 55%
        ),
        var(--panel);
    border: 1px solid var(--border);
    border-top: 3px solid var(--orange);
    border-radius: 10px;
    box-shadow:
        0 0 35px rgba(66, 179, 235, 0.09),
        inset 0 0 30px rgba(19, 25, 32, 0.25);
}

/* Small terminal label on the access screen */
#gate h1::before {
    content: "root@challenge:~$ ";
    display: block;
    margin-bottom: 12px;
    color: var(--blue);
    font-size: 0.65em;
    letter-spacing: 0;
    text-shadow: none;
}

#gate p {
    color: var(--blue);
}

/* Access form framing */
#unlock {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px dashed var(--border);
}

#unlock input {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--white);
    font-family: var(--font-mono);
}

#unlock input:focus {
    border-color: var(--orange);
    outline: none;
    box-shadow: var(--glow-orange);
}

#unlock button {
    width: 100%;
    margin-top: 12px;
}

/* Responsive outer frame */
@media (max-width: 600px) {
    body:has(#challenges) {
        padding: 16px 12px;
    }

    body:has(#challenges)::before {
        inset: 4px;
    }

    body > header {
        padding: 20px;
    }

    body > main#challenges {
        padding: 4px;
    }

    #gate {
        margin: 8vh auto;
        padding: 24px;
    }
}