/* ═══════════════════════════════════════════════════════════
   PPGMCS Design System
   Programa de Pós-Graduação em Modelagem Computacional e Sistemas
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Source+Sans+3:ital,wght@0,300;0,400;0,600;1,400&display=swap');

:root {
    --ppg-navy:          #1b3c5e;
    --ppg-navy-dark:     #102840;
    --ppg-navy-light:    #2a5a8a;
    --ppg-gold:          #b87d2e;
    --ppg-gold-light:    #d4a35a;
    --ppg-surface:       #f3f6fb;
    --ppg-white:         #ffffff;
    --ppg-text:          #1c2a38;
    --ppg-text-muted:    #6a7a8e;
    --ppg-border:        #d6e0ef;
    --ppg-shadow-sm:     0 1px 4px rgba(27,60,94,0.08);
    --ppg-shadow:        0 4px 20px rgba(27,60,94,0.12);
    --ppg-shadow-lg:     0 8px 40px rgba(27,60,94,0.18);
    --ppg-radius:        8px;
    --ppg-font-display:  'Playfair Display', Georgia, serif;
    --ppg-font-body:     'Source Sans 3', 'Helvetica Neue', Arial, sans-serif;
}

/* ─── Base ─────────────────────────────────────────────────── */
body {
    font-family: var(--ppg-font-body);
    font-size: 14px;
    color: var(--ppg-text);
    background: var(--ppg-surface);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ─── ANIMATIONS ─────────────────────────────────────────────*/
@keyframes ppgFadeUp {
    from { opacity: 0; transform: translateY(18px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes ppgFadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* ═══════════════════════════════════════════════════════════
   LOGIN PAGE — two-column layout
   ═══════════════════════════════════════════════════════════ */
.ppg-login-body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: var(--ppg-surface);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.ppg-login-wrapper {
    display: flex;
    align-items: center;
    gap: 60px;
    max-width: 860px;
    width: 100%;
    padding: 40px 24px;
    animation: ppgFadeUp 0.65s ease both;
}

.ppg-login-page-header {
    width: 100%;
    text-align: center;
    margin-bottom: 36px;
}

/* Left column — branding */
.ppg-login-brand {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.ppg-logo-login {
    width: 320px;
    height: auto;
    display: block;
    margin: 0 0 24px;
}

.ppg-login-system-name {
    font-family: var(--ppg-font-display);
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--ppg-navy);
    margin: 0;
    letter-spacing: 0.02em;
    line-height: 1.3;
    max-width: 100%;
}

/* Right column — form */
.ppg-login-form-col {
    flex: 1;
    min-width: 0;
    max-width: 380px;
}

.ppg-login-card {
    width: 100%;
    background: var(--ppg-white);
    border-radius: var(--ppg-radius);
    box-shadow: var(--ppg-shadow);
    padding: 36px 40px 40px;
    text-align: center;
}

.ppg-login-card .ppg-field,
.ppg-login-card form {
    text-align: left;
}

.ppg-field {
    margin-bottom: 18px;
}

.ppg-label {
    display: block;
    font-size: 0.77rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--ppg-text-muted);
    margin-bottom: 6px;
}

.ppg-input {
    display: block;
    width: 100%;
    padding: 10px 14px;
    font-size: 0.94rem;
    font-family: var(--ppg-font-body);
    color: var(--ppg-text);
    background: var(--ppg-surface);
    border: 1.5px solid var(--ppg-border);
    border-radius: var(--ppg-radius);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    box-sizing: border-box;
}

.ppg-input:focus {
    border-color: var(--ppg-navy-light);
    box-shadow: 0 0 0 3px rgba(42,90,138,0.10);
    background: var(--ppg-white);
}

.ppg-btn-submit {
    display: block;
    width: 100%;
    padding: 11px 0;
    font-size: 0.94rem;
    font-family: var(--ppg-font-body);
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--ppg-white);
    background: var(--ppg-navy);
    border: none;
    border-radius: var(--ppg-radius);
    cursor: pointer;
    margin-top: 26px;
    transition: background 0.2s, transform 0.12s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(27,60,94,0.20);
}

.ppg-btn-submit:hover {
    background: var(--ppg-navy-light);
    box-shadow: 0 4px 16px rgba(27,60,94,0.26);
    transform: translateY(-1px);
}

.ppg-btn-submit:active {
    transform: translateY(0);
    box-shadow: var(--ppg-shadow-sm);
}

/* Forgot password link */
.ppg-login-forgot {
    text-align: center;
    margin-top: 18px;
}

.ppg-login-forgot a {
    font-size: 0.84rem;
    color: var(--ppg-navy-light);
    text-decoration: none;
    transition: color 0.2s;
}

.ppg-login-forgot a:hover {
    color: var(--ppg-gold);
    text-decoration: underline;
}

/* Hint below card */
.ppg-login-hint {
    font-size: 0.92rem;
    color: var(--ppg-gold);
    text-align: center;
    margin-top: 20px;
    max-width: 340px;
    line-height: 1.5;
}

/* Alert variants */
.alert.ppg-alert-erro,
.alert.ppg-alert-warn {
    background: #fff7f4;
    border: 1px solid #f5c4aa;
    color: #7d3318;
    border-radius: var(--ppg-radius);
    padding: 10px 14px;
    font-size: 0.87rem;
    margin-bottom: 14px;
}

.alert.ppg-alert-sucesso {
    background: #f0fbf5;
    border: 1px solid #9fd4b5;
    color: #1a5c36;
    border-radius: var(--ppg-radius);
    padding: 10px 14px;
    font-size: 0.87rem;
    margin-bottom: 14px;
}

/* ═══════════════════════════════════════════════════════════
   NAVBAR
   ═══════════════════════════════════════════════════════════ */
.ppg-navbar {
    background: var(--ppg-white) !important;
    border-bottom: 3px solid var(--ppg-navy);
    box-shadow: 0 1px 10px rgba(27,60,94,0.08);
    position: sticky;
    top: 0;
    z-index: 1030;
    padding: 0 !important;
}

.ppg-navbar .container {
    height: 64px;
}

.ppg-navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none !important;
    flex-shrink: 0;
}

.ppg-navbar-brand:hover {
    opacity: 0.88;
}

.ppg-navbar-logo {
    height: 44px;
    width: auto;
}

.ppg-navbar-logo-full {
    height: 48px;
    width: auto;
    max-width: 280px;
}

.ppg-navbar-wordmark {
    display: flex;
    flex-direction: column;
    line-height: 1;
    gap: 2px;
}

.ppg-wordmark-primary {
    font-family: var(--ppg-font-display);
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--ppg-navy);
    letter-spacing: 0.03em;
}

.ppg-wordmark-secondary {
    font-size: 0.64rem;
    color: var(--ppg-text-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 400;
}

/* Nav links */
.ppg-navbar .navbar-nav .nav-link {
    font-family: var(--ppg-font-body);
    font-size: 0.87rem;
    font-weight: 600;
    color: var(--ppg-text) !important;
    letter-spacing: 0.02em;
    padding: 20px 14px !important;
    position: relative;
    transition: color 0.2s;
}

.ppg-navbar .navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 14px;
    right: 14px;
    height: 2px;
    background: var(--ppg-gold);
    transform: scaleX(0);
    transition: transform 0.2s ease;
    border-radius: 2px 2px 0 0;
}

.ppg-navbar .navbar-nav .nav-link:hover {
    color: var(--ppg-navy) !important;
}

.ppg-navbar .navbar-nav .nav-link:hover::after,
.ppg-navbar .navbar-nav .nav-link.active::after {
    transform: scaleX(1);
}

/* Dropdown */
.ppg-navbar .dropdown-menu {
    border: 1px solid var(--ppg-border);
    border-radius: var(--ppg-radius);
    box-shadow: var(--ppg-shadow);
    padding: 4px;
    min-width: 190px;
    animation: ppgFadeIn 0.15s ease both;
}

.ppg-navbar .dropdown-item {
    font-family: var(--ppg-font-body);
    font-size: 0.87rem;
    color: var(--ppg-text);
    padding: 8px 14px;
    border-radius: calc(var(--ppg-radius) - 2px);
    transition: background 0.15s, color 0.15s;
}

.ppg-navbar .dropdown-item:hover {
    background: var(--ppg-surface);
    color: var(--ppg-navy);
}

/* Flash messages */
.ppg-flash-container {
    padding: 0;
    list-style: none;
    margin: 0;
}

.ppg-flash-container .alert {
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-top: none;
    font-family: var(--ppg-font-body);
    font-size: 0.88rem;
    margin: 0;
    padding: 10px 24px;
}

/* ═══════════════════════════════════════════════════════════
   PAGE HEADER (used inside content blocks)
   ═══════════════════════════════════════════════════════════ */
.ppg-page-header {
    padding: 22px 0 16px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--ppg-border);
}

.ppg-page-title {
    font-family: var(--ppg-font-display);
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--ppg-navy);
    margin: 0;
}

.ppg-page-subtitle {
    font-size: 0.82rem;
    color: var(--ppg-text-muted);
    margin: 3px 0 0;
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    .ppg-login-wrapper {
        flex-direction: column;
        gap: 30px;
        padding: 30px 16px;
    }
    .ppg-logo-login { width: 200px; }
    .ppg-login-system-name { font-size: 1.3rem; }
    .ppg-login-form-col { max-width: 100%; }
    .ppg-login-card { padding: 28px 24px; }
    .ppg-wordmark-secondary { display: none; }
    .ppg-navbar .container { height: auto; padding-top: 8px; padding-bottom: 8px; }
    .ppg-navbar .navbar-nav .nav-link { padding: 10px 14px !important; }
    .ppg-navbar .navbar-nav .nav-link::after { display: none; }
}