/* =============================================
   BIXEPS SYSTEM Revamped Color Scheme
   Subdued, accessible palettes for Light & Dark
   Uses CSS variables for easy future adjustments
============================================= */

:root {
    /* Base surfaces */
    --color-bg: #f3f4f6;
    --color-bg-alt: #e7e9ec;
    --color-surface: #ffffff;
    --color-surface-alt: #f0f2f5;
    --color-border: #d0d4da;
    /* Text */
    --color-text: #1f2933;
    --color-text-muted: #5b6672;
    /* Accents (Light) - toned down */
    --color-primary: #2458a6;
    --color-primary-hover: #1d4a8d;
    --color-secondary: #5f6b77;
    --color-secondary-hover: #4f5a63;
    --color-success: #2f7d50;
    --color-success-hover: #276542;
    --color-danger: #c44538;
    --color-danger-hover: #a8372d;
    --color-warning: #d09400;
    --color-warning-hover: #b98200;
    --color-info: #2a6f85;
    --color-info-hover: #235d6f;
    --color-dark: #2d3640;
    --color-dark-hover: #242c34;
    /* Focus ring */
    --focus-ring: 0 0 0 .2rem rgba(36,88,166,.35);
    /* Toast */
    --toast-bg: var(--color-surface);
    --toast-header-bg: var(--color-surface-alt);
    --toast-border: var(--color-border);
    /* Transition */
    --transition-base: background-color .25s ease, color .25s ease, border-color .25s ease, box-shadow .25s ease;
}

[data-theme="dark"] {
    --color-bg: #181c20;
    --color-bg-alt: #1f2429;
    --color-surface: #232a31;
    --color-surface-alt: #2b333b;
    --color-border: #3a444e;
    --color-text: #e4e7ea;
    --color-text-muted: #a9b1ba;
    --color-primary: #5b8dd1;
    --color-primary-hover: #4974ad;
    --color-secondary: #8b949e;
    --color-secondary-hover: #757e87;
    --color-success: #5aa679;
    --color-success-hover: #46835f;
    --color-danger: #e2675b;
    --color-danger-hover: #c65046;
    --color-warning: #d8ab3b;
    --color-warning-hover: #c19330;
    --color-info: #5aa9c2;
    --color-info-hover: #4790a6;
    --color-dark: #495461;
    --color-dark-hover: #3d4650;
    --focus-ring: 0 0 0 .2rem rgba(91,141,209,.35);
    --toast-bg: var(--color-surface);
    --toast-header-bg: var(--color-surface-alt);
    --toast-border: var(--color-border);
}

body {
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
    color: var(--color-text);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", Arial, sans-serif;
    transition: var(--transition-base);
    min-height: 100vh;
}

.card {
    background-color: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: .75rem;
    box-shadow: 0 2px 4px rgba(0,0,0,.04), 0 4px 10px rgba(0,0,0,.03);
    transition: var(--transition-base);
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,.08);
}

.system-title {
    text-align: center;
    font-weight: 600;
    letter-spacing: .5px;
    margin: 20px 0 10px;
    color: var(--color-primary);
}

/* Version text size inside the system title */
.system-title small {
    font-size: 15px;
}

.btn-block { width: 100%; }

.section-title {
    font-weight: 600;
    font-size: 1.15rem;
    margin-bottom: 15px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: .5px;
}

/* Toast */
.toast {
    background-color: var(--toast-bg);
    color: var(--color-text);
    border: 1px solid var(--toast-border);
    transition: var(--transition-base);
}

.toast-header {
    background-color: var(--toast-header-bg);
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--toast-border);
}

/* Shared button base refinement */
.btn {
    font-weight: 500;
    border-width: 1px;
    transition: var(--transition-base);
    backdrop-filter: blur(2px);
    padding: 0.5rem 1rem;
    line-height: 0.5;
    min-height: 1.1rem;
}

/* Ensure full-width grid buttons keep consistent height */
.btn-block { min-height: 3.1rem; }

/* Slightly enlarge icon + label spacing in theme toggle */
#themeToggle i { margin-right: 0.35rem; }

.btn:focus { box-shadow: var(--focus-ring); }

/* Outline variants (override Bootstrap brightness) */
.btn-outline-primary {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background-color: transparent;
}
.btn-outline-primary:hover, .btn-outline-primary:active {
    background-color: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.btn-outline-secondary {
    color: var(--color-secondary);
    border-color: var(--color-secondary);
    background-color: transparent;
}
.btn-outline-secondary:hover, .btn-outline-secondary:active {
    background-color: var(--color-secondary);
    color: #fff;
    border-color: var(--color-secondary);
}

.btn-outline-success {
    color: var(--color-success);
    border-color: var(--color-success);
    background-color: transparent;
}
.btn-outline-success:hover, .btn-outline-success:active {
    background-color: var(--color-success);
    color: #fff;
    border-color: var(--color-success);
}

.btn-outline-danger {
    color: var(--color-danger);
    border-color: var(--color-danger);
    background-color: transparent;
}
.btn-outline-danger:hover, .btn-outline-danger:active {
    background-color: var(--color-danger);
    color: #fff;
    border-color: var(--color-danger);
}

.btn-outline-warning {
    color: var(--color-warning);
    border-color: var(--color-warning);
    background-color: transparent;
}
.btn-outline-warning:hover, .btn-outline-warning:active {
    background-color: var(--color-warning);
    color: #fff;
    border-color: var(--color-warning);
}

.btn-outline-info {
    color: var(--color-info);
    border-color: var(--color-info);
    background-color: transparent;
}
.btn-outline-info:hover, .btn-outline-info:active {
    background-color: var(--color-info);
    color: #fff;
    border-color: var(--color-info);
}

.btn-outline-dark {
    color: var(--color-dark);
    border-color: var(--color-dark);
    background-color: transparent;
}
.btn-outline-dark:hover, .btn-outline-dark:active {
    background-color: var(--color-dark);
    color: #fff;
    border-color: var(--color-dark);
}

/* Disabled state harmonization */
.btn:disabled, .btn.disabled {
    opacity: .55;
    color: var(--color-text-muted) !important;
    border-color: var(--color-border) !important;
    background-color: transparent !important;
}

/* Theme toggle button specific subtle style */
#themeToggle {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}
#themeToggle:hover {
    background-color: var(--color-secondary);
    color: #fff;
}

/* Smooth card section separation */
.card + .card { margin-top: 0.5rem; }

/* Utility muted text classes (if needed later) */
.text-muted-custom { color: var(--color-text-muted) !important; }

/* Scrollbar subtle styling (Webkit browsers) */
body::-webkit-scrollbar { width: 10px; }
body::-webkit-scrollbar-track { background: var(--color-bg-alt); }
body::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 5px; }
body::-webkit-scrollbar-thumb:hover { background: var(--color-secondary); }

/* Icon button vertical layout */
.btn-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    text-align: center;
    padding-top: 1rem; /* extra breathing space above icon */
    padding-bottom: 0.95rem;
}

.btn-icon .bi {
    font-size: 4.1rem; /* larger icon for touch */
    line-height: 1;
    display: block;
    transition: transform .25s ease, color .25s ease;
}

.btn-icon:hover .bi {
    transform: translateY(-2px);
}

/* Ensure text wraps nicely under icons */
.btn-icon span {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: .3px;
}

@media (min-width: 992px) {
    /* Slightly reduce icon size on large desktops if desired */
    .btn-icon .bi { font-size: 2.9rem; }
}