/* Palette Sakhal — survie hostile, neige et nuit polaire
   - fonds : bleu nuit profond, gris bleu glacé
   - accents : orange signal (cassette), rouge atténué (alerte)
   - typo : sans-serif, un peu industrielle
*/
:root {
    --bg: #0e1418;
    --bg-elev: #141c22;
    --card: #1a2228;
    --border: #2a3640;
    --border-strong: #3a4b59;

    --text: #e6ecf0;
    --text-dim: #8a98a5;
    --text-mute: #5a6b78;

    --accent: #d97a3a;          /* orange signal cassette */
    --accent-strong: #f2a26a;   /* hover */
    --accent-cold: #5a8db8;     /* bleu froid signal */

    --error: #c44a3e;
    --error-bg: rgba(196, 74, 62, 0.12);

    --shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.55;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    /* Texture neige légère via gradient subtil */
    background-image:
        radial-gradient(circle at 20% 10%, rgba(90, 141, 184, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(217, 122, 58, 0.03) 0%, transparent 40%);
    background-attachment: fixed;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    /* Petit liseré orange en bas pour rappeler le câble d'une cassette */
    box-shadow: inset 0 -3px 0 var(--accent);
}

header h1 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

header h1 a {
    color: var(--text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

header h1 .icon {
    color: var(--accent);
    font-size: 1.4rem;
}

header .logout {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: color 0.15s;
}

header .logout:hover {
    color: var(--accent);
}

main {
    flex: 1;
    max-width: 760px;
    width: 100%;
    margin: 2.5rem auto;
    padding: 0 1rem;
}

footer {
    text-align: center;
    padding: 1.2rem;
    color: var(--text-mute);
    font-size: 0.82rem;
    border-top: 1px solid var(--border);
    margin-top: 2rem;
    letter-spacing: 0.03em;
}

.card {
    background: var(--card);
    padding: 2rem 2.2rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

h2 {
    margin: 0 0 0.4rem;
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.hint {
    color: var(--text-dim);
    font-size: 0.88rem;
    margin: 0 0 1.5rem;
}

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

.flashes {
    max-width: 760px;
    margin: 1rem auto 0;
    padding: 0 1rem;
}

.flash {
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    border-radius: 4px;
    border-left: 3px solid;
}

.flash-error {
    background: var(--error-bg);
    border-color: var(--error);
}

/* Form */
.field {
    margin-bottom: 1.6rem;
}

.field > label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.92rem;
    letter-spacing: 0.03em;
}

.field > label small {
    font-weight: 400;
    color: var(--text-dim);
    margin-left: 0.4rem;
    font-size: 0.85rem;
    text-transform: none;
    letter-spacing: 0;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 0.7rem 0.9rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.15s, background 0.15s;
}

input[type="text"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: var(--accent-cold);
    background: var(--bg-elev);
}

button,
.btn {
    padding: 0.65rem 1.25rem;
    background: var(--bg-elev);
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    color: var(--text);
    font-size: 0.92rem;
    font-family: inherit;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.15s;
    letter-spacing: 0.02em;
}

button:hover:not(:disabled),
.btn:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent-strong);
}

button:disabled,
.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.primary {
    background: var(--accent);
    color: #1a1004;
    font-weight: 600;
    border-color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.primary:hover:not(:disabled) {
    background: var(--accent-strong);
    border-color: var(--accent-strong);
    color: #1a1004;
}

/* Title preview */
.title-preview {
    margin-top: 0.6rem;
    color: var(--accent-cold);
    font-size: 0.9rem;
    font-style: italic;
    min-height: 1.3em;
    font-family: monospace;
}

/* Dropzone */
.dropzone {
    border: 1px dashed var(--border-strong);
    border-radius: 6px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.15s;
    background: rgba(20, 28, 34, 0.4);
}

.dropzone-small {
    padding: 1.4rem;
}

.dropzone.dragover {
    border-color: var(--accent);
    background: rgba(217, 122, 58, 0.06);
}

.dropzone-hint {
    margin: 0 0 0.8rem;
    color: var(--text-dim);
    font-size: 0.88rem;
}

/* Track list */
.track-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
}

.track-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 0.7rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    margin-bottom: 0.35rem;
    transition: border-color 0.15s;
}

.track-item:hover {
    border-color: var(--border-strong);
}

.track-num {
    color: var(--accent);
    font-weight: 600;
    min-width: 1.6rem;
    font-family: monospace;
    font-size: 0.85rem;
}

.track-up,
.track-down {
    padding: 0.2rem 0.5rem;
    font-size: 0.85rem;
    line-height: 1;
}

.track-name {
    flex: 1;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text);
    padding: 0.3rem 0.5rem;
    border-radius: 3px;
    font-size: 0.92rem;
}

.track-name:focus {
    outline: none;
    border-color: var(--accent-cold);
    background: var(--bg-elev);
}

.track-size {
    color: var(--text-mute);
    font-size: 0.78rem;
    font-family: monospace;
}

.track-remove {
    background: transparent;
    border: none;
    color: var(--text-mute);
    cursor: pointer;
    padding: 0.2rem 0.5rem;
    font-size: 1.1rem;
    transition: color 0.15s;
}

.track-remove:hover {
    color: var(--error);
}

/* PNG preview */
.png-preview {
    margin-top: 1rem;
    text-align: center;
}

.png-preview img {
    max-width: 220px;
    max-height: 220px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: #fff;
}

/* Login */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    max-width: 320px;
}

/* Result page */
.actions {
    display: flex;
    gap: 1rem;
    margin: 1.5rem 0;
    flex-wrap: wrap;
}

code {
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-size: 0.85em;
    color: var(--accent-strong);
}

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

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

/* Sent dialog (apparaît après envoi mail) */
.sent-info {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(90, 141, 184, 0.08);
    border: 1px solid var(--accent-cold);
    border-radius: 4px;
}

.sent-info code {
    word-break: break-all;
}