@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800&display=swap');

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

:root {
    --cream:       #fefaf7;
    --cream-dark:  #f5ede3;
    --red:         #e22519;
    --red-dark:    #c01e14;
    --gray:        #7b7b7b;
    --gray-dark:   #4a4a4a;
    --gray-light:  #b0b0b0;
    --border:      #e8ddd4;
    --shadow-sm:   0 1px 4px rgba(0,0,0,.08);
    --shadow-md:   0 4px 16px rgba(0,0,0,.10);
    --radius:      10px;
    --header-h:    72px;
    --transition:  0.2s ease;
    --font:        'Nunito', Arial, sans-serif;
    --green:       #2a9d4e;
    --green-bg:    #e6f7ed;
    --red-bg:      #fde8e6;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    background-color: var(--cream);
    color: var(--gray-dark);
    line-height: 1.6;
    margin-top: var(--header-h);
}

/* ── Header ─────────────────────────────────────────────────── */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    background: var(--cream);
    border-bottom: 1.5px solid var(--border);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 1000;
}

.nav-left,
.nav-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    text-decoration: none;
    transition: background var(--transition);
}
.nav-icon:hover {
    background: var(--cream-dark);
}
.nav-icon:focus-visible {
    outline: 2px solid var(--red);
    outline-offset: 2px;
}

.head-image {
    width: 28px;
    height: 28px;
    object-fit: contain;
    display: block;
}

.nav-link {
    font-family: var(--font);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--gray-dark);
    text-decoration: none;
    padding: 8px 14px;
    border-radius: 8px;
    transition: background var(--transition), color var(--transition);
    white-space: nowrap;
}
.nav-link:hover {
    background: var(--cream-dark);
    color: var(--red);
}
.nav-link:focus-visible {
    outline: 2px solid var(--red);
    outline-offset: 2px;
}

.logout-form {
    display: inline-flex;
    align-items: center;
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    padding: 0;
    transition: background var(--transition);
}
.icon-btn:hover {
    background: var(--red-bg);
}
.icon-btn:focus-visible {
    outline: 2px solid var(--red);
    outline-offset: 2px;
}

/* ── Shared Buttons ─────────────────────────────────────────── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--red);
    color: #fff;
    border: 2px solid var(--red);
    border-radius: 8px;
    padding: 10px 22px;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--transition), box-shadow var(--transition), transform 0.1s ease;
    min-height: 44px;
}
.btn-primary:hover {
    background: var(--red-dark);
    border-color: var(--red-dark);
    box-shadow: 0 4px 12px rgba(226,37,25,.3);
}
.btn-primary:active {
    transform: scale(0.97);
}
.btn-primary:focus-visible {
    outline: 2px solid var(--red-dark);
    outline-offset: 3px;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--gray-dark);
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 10px 22px;
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--transition), border-color var(--transition);
    min-height: 44px;
}
.btn-secondary:hover {
    background: var(--cream-dark);
    border-color: var(--gray-light);
}
.btn-secondary:focus-visible {
    outline: 2px solid var(--red);
    outline-offset: 2px;
}

.btn-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    color: var(--red);
    border: 2px solid var(--red);
    border-radius: 8px;
    padding: 10px 22px;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--transition), box-shadow var(--transition);
    min-height: 44px;
}
.btn-danger:hover {
    background: var(--red-bg);
    box-shadow: 0 4px 12px rgba(226,37,25,.15);
}
.btn-danger:focus-visible {
    outline: 2px solid var(--red);
    outline-offset: 2px;
}

/* ── Form Feedback ──────────────────────────────────────────── */
.form-error {
    background: var(--red-bg);
    color: #9b1c14;
    border: 1.5px solid #f5c0bc;
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.form-success {
    background: var(--green-bg);
    color: #1a6632;
    border: 1.5px solid #a8ddb8;
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
}