* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

@font-face {
    font-family: 'Arial Rounded MT';
    src: url('../fonts/ArialRoundedMT-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Arial Rounded MT';
    src: url('../fonts/ArialRoundedMT-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

:root {
    --primary-bg:   #0a0e27;
    --text-white:   #ffffff;
    --text-gray:    #b8c1db;
    --card-bg:      rgba(20, 25, 50, 0.85);
    --card-border:  rgba(74, 111, 165, 0.3);
    --primary-blue: #4a6fa5;
    --primary-blue-hover: #5a7fb5;
    --success:  #9fda87;
    --error:    #eb5f5f;
    --sent:     #64b87f;
    --font-family: 'Arial Rounded MT', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --gradient-blue: linear-gradient(135deg, #2b3a87 0%, #4a6fa5 100%);
    --gradient-blue-hover: linear-gradient(135deg, #3545a0 0%, #5a80c5 100%);
}

body {
    font-family: var(--font-family);
    background: var(--primary-bg);
    color: var(--text-white);
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: 70px;
}

/* ─── Neige ─────────────────────────────────────────────────── */
#snow {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    pointer-events: none;
    z-index: 1;
}

/* ─── Navbar ─────────────────────────────────────────────────── */
.navbar {
    background: rgba(10, 14, 39, 0.95);
    padding: 1rem 2rem;
    position: fixed;
    top: 0; width: 100%;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
    text-decoration: none;
    transition: opacity 0.3s ease;
}
.nav-logo:hover { opacity: 0.8; }
.nav-logo img { width: 40px; height: 40px; }

/* ─── Screens ────────────────────────────────────────────────── */
.screen {
    display: none;
    position: relative;
    z-index: 2;
    flex: 1;
    width: 100%;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}
.screen.active { display: flex; }

/* ─── Login ─────────────────────────────────────────────────── */
.login-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 3rem 2.5rem;
    text-align: center;
    max-width: 420px;
    width: 100%;
    backdrop-filter: blur(10px);
}

.login-logo {
    width: 120px;
    height: auto;
    margin-bottom: 1.25rem;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 10px 24px rgba(74, 111, 165, 0.3));
}

@keyframes float {
    0%, 100% { transform: translateY(-8px); }
    50%       { transform: translateY(8px); }
}

.login-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.login-subtitle {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 2rem;
    line-height: 1.5;
}

#login-error {
    display: none;
    color: var(--error);
    font-size: 0.9rem;
    margin-bottom: 1.2rem;
    padding: 0.6rem 1rem;
    background: rgba(235, 95, 95, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(235, 95, 95, 0.3);
}

.btn-discord {
    background: #5865F2;
    color: #fff;
    border: 1px solid rgba(88, 101, 242, 0.5);
    width: 100%;
}
.btn-discord:hover {
    background: #4752c4;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(88, 101, 242, 0.35);
}

.discord-icon {
    width: 22px;
    height: 17px;
    flex-shrink: 0;
    filter: brightness(0) invert(1);
}

.login-note {
    margin-top: 1.5rem;
    color: var(--text-gray);
    font-size: 0.8rem;
    opacity: 0.7;
}

/* ─── Panel calendrier ──────────────────────────────────────── */
.panel-container {
    max-width: 960px;
    width: 100%;
}

.panel-title {
    font-size: 4rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.75rem;
}

.panel-user-pill {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 50px;
    padding: 0.3rem 0.5rem 0.3rem 0.4rem;
    backdrop-filter: blur(10px);
    width: fit-content;
    margin: 0 auto 1.75rem;
}

.panel-avatar {
    width: 26px; height: 26px;
    border-radius: 50%;
    object-fit: cover;
}

.panel-username {
    font-size: 0.88rem;
    color: var(--text-gray);
    padding-right: 0.1rem;
}

.panel-logout-btn {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.2);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    transition: color 0.2s, background 0.2s;
    margin-left: 0.1rem;
}

.panel-logout-btn img {
    width: 16px;
    height: 16px;
    filter: invert(1);
    opacity: 0.45;
    transition: opacity 0.2s, filter 0.2s;
}

.panel-logout-btn:hover {
    background: rgba(255, 80, 80, 0.1);
}

.panel-logout-btn:hover img {
    filter: invert(40%) sepia(1) saturate(5) hue-rotate(320deg);
    opacity: 1;
}

/* Navigation mois */
.calendar-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

#calendar-month-label {
    font-size: 1.2rem;
    font-weight: 700;
    min-width: 175px;
    text-align: center;
    color: var(--text-white);
}

.btn-nav {
    background: rgba(74, 111, 165, 0.08);
    border: 1px solid var(--card-border);
    color: var(--text-white);
    font-family: var(--font-family);
    font-size: 1.2rem;
    width: 36px; height: 36px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.btn-nav:hover {
    border-color: var(--primary-blue);
    background: rgba(74, 111, 165, 0.2);
}

/* Légende */
.calendar-legend {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 1.2rem;
    flex-wrap: wrap;
}
.legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--text-gray);
}
.legend-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
}
.legend-dot.pending { background: var(--primary-blue); }
.legend-dot.sent    { background: var(--sent); }

/* Grille calendrier */
#calendar-grid {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    padding: 1rem;
    backdrop-filter: blur(10px);
}

.calendar-header-row {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    margin-bottom: 6px;
    padding: 0 2px;
}

.calendar-day-header {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-gray);
    padding: 0.5rem 0;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    opacity: 0.6;
}

.calendar-body {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
}

.calendar-day {
    aspect-ratio: 1;
    min-height: 70px;
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid rgba(74, 111, 165, 0.08);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    padding: 6px;
}

.calendar-day:not(.empty):hover {
    background: rgba(74, 111, 165, 0.14);
    border-color: rgba(74, 111, 165, 0.4);
}

.calendar-day.empty {
    background: transparent;
    border-color: transparent;
    cursor: default;
}

.calendar-day.today {
    border-color: rgba(74, 111, 165, 0.55);
    background: rgba(74, 111, 165, 0.07);
}
.calendar-day.today .day-number {
    color: var(--text-white);
    font-weight: 700;
}

.calendar-day.has-constat {
    border-color: rgba(74, 111, 165, 0.7);
    background: rgba(74, 111, 165, 0.35);
}

.calendar-day.has-constat-sent {
    border-color: rgba(100, 184, 127, 0.7);
    background: rgba(100, 184, 127, 0.3);
}

.calendar-day.disabled {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.03);
    cursor: default;
    pointer-events: none;
}

.calendar-day.disabled .day-number {
    opacity: 0.2;
}

.day-number {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-gray);
    line-height: 1;
}


/* ─── Modal ─────────────────────────────────────────────────── */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(5, 8, 20, 0.75);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    backdrop-filter: blur(4px);
}
.modal.active { display: flex; }

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2rem;
    width: 100%;
    max-width: 540px;
    backdrop-filter: blur(16px);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-title {
    font-size: 1.2rem;
    font-weight: 700;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-gray);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 0.2rem 0.4rem;
    border-radius: 6px;
    transition: color 0.2s;
}
.modal-close:hover { color: var(--text-white); }

.constat-author {
    font-size: 0.82rem;
    color: var(--text-gray);
    margin-bottom: 0.75rem;
    display: none;
}

.modal-sent-banner {
    display: none;
    align-items: center;
    gap: 0.5rem;
    background: rgba(100, 184, 127, 0.1);
    border: 1px solid rgba(100, 184, 127, 0.3);
    border-radius: 8px;
    padding: 0.6rem 0.9rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--sent);
}

.constat-textarea {
    width: 100%;
    min-height: 180px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    color: var(--text-white);
    font-family: var(--font-family);
    font-size: 0.95rem;
    line-height: 1.6;
    padding: 1rem;
    resize: vertical;
    transition: border-color 0.2s;
    outline: none;
}
.constat-textarea:focus {
    border-color: var(--primary-blue);
}
.constat-textarea:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    resize: none;
}

.textarea-hint {
    font-size: 0.78rem;
    color: var(--text-gray);
    margin-top: 0.4rem;
    opacity: 0.7;
}

.modal-status {
    font-size: 0.9rem;
    min-height: 1.2em;
    margin-top: 0.75rem;
}
.modal-status.success { color: var(--success); }
.modal-status.error   { color: var(--error); }

.modal-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 50px;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--gradient-blue);
    color: var(--text-white);
    border: 1px solid rgba(74, 111, 165, 0.3);
}
.btn-primary:hover:not(:disabled) {
    background: var(--gradient-blue-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(43, 58, 135, 0.35);
}
.btn-primary:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.btn-danger {
    background: transparent;
    color: var(--error);
    border: 1px solid rgba(235, 95, 95, 0.4);
}
.btn-danger:hover {
    background: rgba(235, 95, 95, 0.1);
    border-color: var(--error);
}

/* ─── Footer ─────────────────────────────────────────────────── */
footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-gray);
    font-size: 1rem;
    position: relative;
    z-index: 2;
    margin-top: auto;
    opacity: 0.4;
}

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 640px) {
    body { padding-top: 60px; }
    .screen { padding: 1rem; }
    .panel-container { max-width: 100%; }

    #calendar-month-label { font-size: 1rem; min-width: unset; }

    .calendar-day {
        min-height: 44px;
        border-radius: 8px;
    }
    .day-number { font-size: 0.85rem; }

    #calendar-grid { padding: 0.75rem; }
    .calendar-body { gap: 3px; }
    .calendar-header-row { gap: 3px; }

    .modal-content { padding: 1.5rem; }
    .panel-title { font-size: 2.5rem; }
    .panel-username { font-size: 0.82rem; }
}