/* ============================================================
   DragonBank — Design System
   Inspired by Revolut: clean, minimal, premium fintech UI
   Font: DM Sans (display) + DM Mono (numbers)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;0,9..40,800;1,9..40,400&family=DM+Mono:wght@300;400;500&display=swap');

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
    --c-bg:           #f7f7f8;
    --c-surface:      #ffffff;
    --c-surface-2:    #f2f2f4;
    --c-surface-3:    #eaeaee;
    --c-border:       #e4e4e8;
    --c-border-soft:  #ededf0;

    --c-text-primary:   #0d0d0d;
    --c-text-secondary: #6b6b7a;
    --c-text-tertiary:  #9999a8;
    --c-text-inverse:   #ffffff;

    --c-brand:        #191c3a;
    --c-brand-mid:    #2c3070;
    --c-brand-light:  #7b7ff5;
    --c-accent:       #6c63ff;
    --c-accent-soft:  rgba(108, 99, 255, 0.08);
    --c-accent-hover: #5850e8;

    --c-green:        #00c896;
    --c-green-soft:   rgba(0, 200, 150, 0.08);
    --c-red:          #ff4d6d;
    --c-red-soft:     rgba(255, 77, 109, 0.08);
    --c-amber:        #f59e0b;
    --c-amber-soft:   rgba(245, 158, 11, 0.08);
    --c-blue:         #3b82f6;
    --c-blue-soft:    rgba(59, 130, 246, 0.08);

    --c-courant:      #3b82f6;
    --c-livret:       #00c896;
    --c-assurance:    #f59e0b;

    --shadow-xs:  0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm:  0 1px 4px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
    --shadow-md:  0 4px 16px rgba(0,0,0,0.08), 0 1px 4px rgba(0,0,0,0.04);
    --shadow-lg:  0 8px 32px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.06);
    --shadow-xl:  0 20px 60px rgba(0,0,0,0.14), 0 4px 16px rgba(0,0,0,0.08);

    --r-sm:   8px;
    --r-md:   12px;
    --r-lg:   16px;
    --r-xl:   20px;
    --r-2xl:  24px;
    --r-full: 9999px;

    --font-body: 'DM Sans', system-ui, sans-serif;
    --font-mono: 'DM Mono', 'Courier New', monospace;

    --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
    --dur-fast:   120ms;
    --dur-base:   200ms;
    --dur-slow:   350ms;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--c-text-primary);
    background-color: var(--c-bg);
    min-height: 100vh;
}

a {
    color: var(--c-accent);
    text-decoration: none;
    transition: color var(--dur-fast) var(--ease-out);
}
a:hover { color: var(--c-accent-hover); }

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
    background: var(--c-surface) !important;
    border-bottom: 1px solid var(--c-border) !important;
    padding: 0 24px !important;
    height: 60px;
    box-shadow: var(--shadow-xs) !important;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-size: 1.0625rem !important;
    font-weight: 700 !important;
    color: var(--c-text-primary) !important;
    letter-spacing: -0.3px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-brand .dragon-icon { font-size: 1.2rem; margin-right: 0; }

.navbar-nav .nav-link {
    color: var(--c-text-secondary) !important;
    font-size: 0.875rem !important;
    font-weight: 500 !important;
    padding: 6px 12px !important;
    border-radius: var(--r-sm) !important;
    transition: color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out) !important;
    margin: 0 2px !important;
}

.navbar-nav .nav-link:hover {
    color: var(--c-text-primary) !important;
    background: var(--c-surface-2) !important;
}

.navbar-nav .nav-link.active {
    color: var(--c-accent) !important;
    background: var(--c-accent-soft) !important;
    font-weight: 600 !important;
}

.navbar-nav .nav-link i { margin-right: 4px; font-size: 0.875rem; }

.dropdown-menu {
    border: 1px solid var(--c-border) !important;
    border-radius: var(--r-md) !important;
    box-shadow: var(--shadow-md) !important;
    padding: 6px !important;
    font-size: 0.875rem !important;
    margin-top: 8px !important;
}

.dropdown-item {
    border-radius: var(--r-sm) !important;
    padding: 7px 12px !important;
    color: var(--c-text-secondary) !important;
    font-weight: 500 !important;
    transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out) !important;
}

.dropdown-item:hover {
    background: var(--c-surface-2) !important;
    color: var(--c-text-primary) !important;
}

.dropdown-item i { margin-right: 8px; opacity: 0.6; width: 14px; text-align: center; }

.user-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: var(--c-surface-2);
    border: 1px solid var(--c-border);
    color: var(--c-text-primary);
    padding: 5px 14px;
    border-radius: var(--r-full);
    font-weight: 600;
    font-size: 0.8125rem;
}

/* ============================================================
   LOGIN / REGISTER
   ============================================================ */
.login-page {
    min-height: 100vh;
    background: var(--c-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -200px; right: -200px;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(108,99,255,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.login-page::after {
    content: '';
    position: absolute;
    bottom: -150px; left: -150px;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(0,200,150,0.04) 0%, transparent 70%);
    pointer-events: none;
}

.login-container {
    width: 100%;
    max-width: 420px;
    position: relative;
    z-index: 1;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header .dragon-logo {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 16px;
}

.login-header h1 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--c-text-primary);
    letter-spacing: -0.5px;
    margin-bottom: 4px;
}

.login-header p {
    color: var(--c-text-secondary);
    font-size: 0.9375rem;
}

.login-card {
    background: var(--c-surface);
    border-radius: var(--r-2xl);
    padding: 32px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--c-border-soft);
}

.login-card h2 {
    font-size: 1.1875rem;
    font-weight: 700;
    color: var(--c-text-primary);
    margin-bottom: 24px;
    letter-spacing: -0.3px;
}

/* ============================================================
   FORMS
   ============================================================ */
.form-group { margin-bottom: 20px; }

.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--c-text-secondary);
    margin-bottom: 7px;
    letter-spacing: 0.2px;
    text-transform: uppercase;
}

.form-control,
.form-select {
    width: 100%;
    padding: 11px 16px;
    font-size: 0.9375rem;
    font-family: var(--font-body);
    font-weight: 400;
    color: var(--c-text-primary);
    background: var(--c-surface);
    border: 1.5px solid var(--c-border);
    border-radius: var(--r-md);
    line-height: 1.5;
    transition: border-color var(--dur-fast) var(--ease-out),
                box-shadow var(--dur-fast) var(--ease-out);
    -webkit-appearance: none;
    appearance: none;
}

.form-control::placeholder { color: var(--c-text-tertiary); }

.form-control:hover,
.form-select:hover { border-color: #c8c8d0; }

.form-control:focus,
.form-select:focus {
    outline: none;
    border-color: var(--c-accent);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.10);
}

.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%236b6b7a' d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 9px;
    padding-right: 36px;
    cursor: pointer;
}

.form-text,
small.text-muted {
    font-size: 0.8125rem;
    color: var(--c-text-tertiary);
    margin-top: 5px;
    display: block;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-dragon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 11px 24px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    color: #ffffff;
    background: var(--c-brand);
    border: none;
    border-radius: var(--r-md);
    cursor: pointer;
    white-space: nowrap;
    transition: background var(--dur-fast) var(--ease-out),
                transform var(--dur-fast) var(--ease-out),
                box-shadow var(--dur-fast) var(--ease-out);
    letter-spacing: -0.1px;
    text-decoration: none;
}

.btn-dragon:hover {
    background: var(--c-brand-mid);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(25, 28, 58, 0.25);
}

.btn-dragon:active { transform: translateY(0); box-shadow: none; }
.btn-dragon.w-100 { width: 100%; }

.btn-dragon-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 10px 24px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--c-text-secondary);
    background: transparent;
    border: 1.5px solid var(--c-border);
    border-radius: var(--r-md);
    cursor: pointer;
    white-space: nowrap;
    transition: border-color var(--dur-fast) var(--ease-out),
                color var(--dur-fast) var(--ease-out),
                background var(--dur-fast) var(--ease-out);
    text-decoration: none;
}

.btn-dragon-outline:hover {
    border-color: var(--c-text-primary);
    color: var(--c-text-primary);
    background: var(--c-surface-2);
}

.btn-dragon-outline.w-100 { width: 100%; }

.btn-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 11px 24px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--c-text-primary);
    background: var(--c-amber);
    border: none;
    border-radius: var(--r-md);
    cursor: pointer;
    transition: filter var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
    text-decoration: none;
}

.btn-gold:hover { filter: brightness(0.92); transform: translateY(-1px); color: var(--c-text-primary); }

.btn-success-custom {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 11px 24px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    color: #ffffff;
    background: var(--c-green);
    border: none;
    border-radius: var(--r-md);
    cursor: pointer;
    transition: filter var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
    text-decoration: none;
}

.btn-success-custom:hover { filter: brightness(0.9); transform: translateY(-1px); color: #ffffff; }

.btn-sm {
    padding: 6px 14px !important;
    font-size: 0.8125rem !important;
    border-radius: var(--r-sm) !important;
}

.btn-danger {
    background: var(--c-red) !important;
    border: none !important;
    border-radius: var(--r-sm) !important;
    font-weight: 600 !important;
    font-size: 0.8125rem !important;
    transition: filter var(--dur-fast) var(--ease-out) !important;
}

.btn-danger:hover { filter: brightness(0.88) !important; }

/* ============================================================
   LAYOUT
   ============================================================ */
.main-content {
    padding: 32px;
    max-width: 1280px;
    margin: 0 auto;
}

.page-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--c-border);
}

.page-header h1 {
    font-size: 1.625rem;
    font-weight: 800;
    color: var(--c-text-primary);
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.page-header h1 i {
    color: var(--c-accent);
    margin-right: 10px;
    font-size: 1.375rem;
}

.page-header p {
    color: var(--c-text-secondary);
    font-size: 0.9375rem;
    margin-top: 4px;
}

/* ============================================================
   SECTION CARD
   ============================================================ */
.section-card {
    background: var(--c-surface);
    border-radius: var(--r-xl);
    padding: 24px;
    border: 1px solid var(--c-border);
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
    transition: box-shadow var(--dur-base) var(--ease-out);
}

.section-card:hover { box-shadow: var(--shadow-md); }

.section-card .section-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--c-text-primary);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--c-border);
    letter-spacing: -0.2px;
}

/* ============================================================
   STAT CARDS
   ============================================================ */
.stat-card {
    background: var(--c-surface);
    border-radius: var(--r-xl);
    padding: 24px;
    border: 1px solid var(--c-border);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--dur-base) var(--ease-out),
                transform var(--dur-base) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    border-radius: var(--r-xl) var(--r-xl) 0 0;
    opacity: 0;
    transition: opacity var(--dur-base) var(--ease-out);
}

.stat-card:hover::before { opacity: 1; }
.stat-card.primary::before  { background: var(--c-accent); }
.stat-card.success::before  { background: var(--c-green); }
.stat-card.info::before     { background: var(--c-blue); }
.stat-card.warning::before  { background: var(--c-amber); }

.stat-card .stat-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--r-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    margin-bottom: 16px;
}

.stat-card.primary .stat-icon  { background: var(--c-accent-soft);  color: var(--c-accent); }
.stat-card.success .stat-icon  { background: var(--c-green-soft);   color: var(--c-green); }
.stat-card.info .stat-icon     { background: var(--c-blue-soft);    color: var(--c-blue); }
.stat-card.warning .stat-icon  { background: var(--c-amber-soft);   color: var(--c-amber); }

.stat-card .stat-value {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--c-text-primary);
    line-height: 1;
    letter-spacing: -1px;
}

.stat-card .stat-label {
    font-size: 0.8125rem;
    color: var(--c-text-secondary);
    margin-top: 8px;
    font-weight: 500;
}

/* ============================================================
   ACCOUNT CARDS
   ============================================================ */
.account-card {
    background: var(--c-surface);
    border-radius: var(--r-xl);
    padding: 24px;
    border: 1px solid var(--c-border);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--dur-base) var(--ease-out),
                transform var(--dur-base) var(--ease-out);
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
}

.account-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px;
    height: 100%;
    border-radius: var(--r-xl) 0 0 var(--r-xl);
}

.account-card.courant::after       { background: var(--c-courant); }
.account-card.livret_a::after      { background: var(--c-livret); }
.account-card.assurance_vie::after { background: var(--c-assurance); }

.account-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.account-type-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: var(--r-full);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.account-type-badge.courant       { background: rgba(59,130,246,0.08);  color: var(--c-courant); }
.account-type-badge.livret_a      { background: rgba(0,200,150,0.08);   color: var(--c-livret); }
.account-type-badge.assurance_vie { background: rgba(245,158,11,0.08);  color: var(--c-assurance); }

.account-balance {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 500;
    color: var(--c-text-primary);
    letter-spacing: -1.5px;
    line-height: 1.1;
}

.account-number {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--c-text-tertiary);
    letter-spacing: 1.5px;
    font-weight: 300;
}

/* ============================================================
   TABLES
   ============================================================ */
.custom-table {
    background: var(--c-surface);
    border-radius: var(--r-xl);
    overflow: hidden;
    border: 1px solid var(--c-border);
    box-shadow: var(--shadow-sm);
}

.custom-table .table { margin-bottom: 0; font-size: 0.875rem; }

.custom-table .table thead,
.table thead { background: var(--c-surface-2); }

.custom-table .table thead th,
.table thead th {
    font-size: 0.75rem !important;
    font-weight: 700 !important;
    color: var(--c-text-tertiary) !important;
    text-transform: uppercase !important;
    letter-spacing: 0.6px !important;
    padding: 14px 20px !important;
    border: none !important;
    border-bottom: 1px solid var(--c-border) !important;
    background: var(--c-surface-2) !important;
}

.custom-table .table tbody td,
.table tbody td {
    padding: 14px 20px !important;
    vertical-align: middle !important;
    border-bottom: 1px solid var(--c-border-soft) !important;
    font-size: 0.875rem;
    color: var(--c-text-primary);
}

.custom-table .table tbody tr:last-child td,
.table tbody tr:last-child td { border-bottom: none !important; }

.table-hover tbody tr,
.custom-table .table tbody tr {
    transition: background var(--dur-fast) var(--ease-out);
}

.table-hover tbody tr:hover,
.custom-table .table tbody tr:hover {
    background-color: var(--c-surface-2) !important;
}

.transaction-amount.credit { color: var(--c-green); font-weight: 600; }
.transaction-amount.debit  { color: var(--c-red);   font-weight: 600; }

/* ============================================================
   BADGES & STATUS
   ============================================================ */
.badge {
    font-size: 0.71875rem !important;
    font-weight: 600 !important;
    padding: 3px 9px !important;
    border-radius: var(--r-full) !important;
    letter-spacing: 0.2px !important;
}

.bg-primary   { background: var(--c-blue)           !important; }
.bg-success   { background: var(--c-green)           !important; }
.bg-danger    { background: var(--c-red)             !important; }
.bg-warning   { background: var(--c-amber)           !important; }
.bg-info      { background: var(--c-brand-light)     !important; }
.bg-secondary { background: var(--c-text-tertiary)   !important; }

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: var(--r-full);
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.status-badge.completed { background: var(--c-green-soft);  color: var(--c-green); }
.status-badge.pending   { background: var(--c-amber-soft);  color: var(--c-amber); }
.status-badge.failed    { background: var(--c-red-soft);    color: var(--c-red); }
.status-badge i { font-size: 0.6875rem; }

/* ============================================================
   ALERTS
   ============================================================ */
.alert {
    border: none !important;
    border-radius: var(--r-md) !important;
    padding: 14px 18px !important;
    font-size: 0.9375rem !important;
    font-weight: 500 !important;
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
}

.alert i { flex-shrink: 0; }

.alert-success {
    background: var(--c-green-soft) !important;
    color: #00a37c !important;
    border-left: 3px solid var(--c-green) !important;
}

.alert-danger {
    background: var(--c-red-soft) !important;
    color: #d93654 !important;
    border-left: 3px solid var(--c-red) !important;
}

.alert-warning {
    background: var(--c-amber-soft) !important;
    color: #c47d00 !important;
    border-left: 3px solid var(--c-amber) !important;
}

.alert-info {
    background: var(--c-blue-soft) !important;
    color: #2266cc !important;
    border-left: 3px solid var(--c-blue) !important;
}

.alert-link { font-weight: 700 !important; text-decoration: underline !important; }
.btn-close { margin-left: auto !important; flex-shrink: 0 !important; opacity: 0.4 !important; }
.btn-close:hover { opacity: 0.7 !important; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--c-surface);
    border-top: 1px solid var(--c-border);
    color: var(--c-text-tertiary);
    text-align: center;
    padding: 24px 32px;
    margin-top: 48px;
    font-size: 0.8125rem;
}

.footer a { color: var(--c-text-secondary); font-weight: 500; }
.footer a:hover { color: var(--c-text-primary); }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.fade-in { animation: fadeUp var(--dur-slow) var(--ease-out) both; }
.delay-1 { animation-delay: 60ms; }
.delay-2 { animation-delay: 120ms; }
.delay-3 { animation-delay: 180ms; }
.delay-4 { animation-delay: 240ms; }

/* ============================================================
   UTILITIES
   ============================================================ */
code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--c-surface-2);
    border: 1px solid var(--c-border);
    padding: 1px 6px;
    border-radius: var(--r-sm);
    color: var(--c-text-primary);
}

.text-muted    { color: var(--c-text-secondary) !important; }
.text-success  { color: var(--c-green)  !important; }
.text-danger   { color: var(--c-red)    !important; }
.text-warning  { color: var(--c-amber)  !important; }
.text-info     { color: var(--c-blue)   !important; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .main-content { padding: 24px; }
}

@media (max-width: 768px) {
    .navbar { padding: 0 16px !important; }
    .main-content { padding: 20px 16px; }
    .page-header h1 { font-size: 1.375rem; }
    .stat-card .stat-value { font-size: 1.375rem; }
    .account-balance { font-size: 1.625rem; }
    .login-card { padding: 24px; }
    .section-card { padding: 20px; border-radius: var(--r-lg); }
}

@media (max-width: 480px) {
    .main-content { padding: 16px 12px; }
    .btn-dragon,
    .btn-dragon-outline,
    .btn-gold,
    .btn-success-custom { padding: 10px 18px; font-size: 0.875rem; }
}