/* ============================================================================
   SRM design layer — a clean, modern SaaS look on top of Bootstrap 5.3.
   Driven by Bootstrap CSS variables so everything adapts to light/dark
   (data-bs-theme on <html>).
   ============================================================================ */

:root {
    /* Indigo accent */
    --srm-accent: #4f46e5;
    --srm-accent-hover: #4338ca;
    --srm-accent-active: #3730a3;
    --srm-accent-soft: rgba(79, 70, 229, 0.10);

    /* Re-tint Bootstrap links/focus to the accent */
    --bs-primary: #4f46e5;
    --bs-primary-rgb: 79, 70, 229;
    --bs-link-color-rgb: 79, 70, 229;
    --bs-link-hover-color-rgb: 67, 56, 202;

    /* Friendlier corners + soft shadows */
    --bs-border-radius: 0.625rem;
    --bs-border-radius-sm: 0.45rem;
    --bs-border-radius-lg: 0.9rem;
    --bs-border-radius-xl: 1.1rem;

    --srm-shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04), 0 1px 3px rgba(16, 24, 40, 0.06);
    --srm-shadow: 0 1px 3px rgba(16, 24, 40, 0.06), 0 4px 12px rgba(16, 24, 40, 0.06);
}

/* Light theme surface palette */
[data-bs-theme="light"] {
    --bs-body-bg: #f4f5fa;
    --bs-secondary-bg: #ffffff;
    --bs-border-color: #e6e8ef;
    --bs-border-color-translucent: rgba(16, 24, 40, 0.08);
    --bs-card-bg: #ffffff;
    --bs-secondary-color: #6b7280;
}

/* Dark theme surface palette (deeper, more neutral than Bootstrap default) */
[data-bs-theme="dark"] {
    --bs-body-bg: #0d1017;
    --bs-secondary-bg: #161a22;
    --bs-tertiary-bg: #1b2029;
    --bs-border-color: #29303b;
    --bs-border-color-translucent: rgba(255, 255, 255, 0.08);
    --bs-card-bg: #151a22;
    --bs-emphasis-color: #f3f4f6;
    --bs-secondary-color: #9aa3b2;
}

html, body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
        Arial, "Noto Sans", sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: var(--bs-body-bg);
}

h1, h2, h3, .h1, .h2, .h3 {
    letter-spacing: -0.015em;
    font-weight: 650;
}

/* Reusable page header */
.srm-page-title {
    font-size: 1.5rem;
    font-weight: 680;
    margin-bottom: 0.1rem;
}

.srm-page-subtitle {
    color: var(--bs-secondary-color);
    font-size: 0.92rem;
    margin-bottom: 0;
}

/* --- Buttons -------------------------------------------------------------- */
.btn {
    --bs-btn-font-weight: 550;
    --bs-btn-border-radius: 0.55rem;
    --bs-btn-padding-x: 0.95rem;
}

.btn-sm {
    --bs-btn-border-radius: 0.45rem;
}

.btn-primary {
    --bs-btn-bg: var(--srm-accent);
    --bs-btn-border-color: var(--srm-accent);
    --bs-btn-hover-bg: var(--srm-accent-hover);
    --bs-btn-hover-border-color: var(--srm-accent-hover);
    --bs-btn-active-bg: var(--srm-accent-active);
    --bs-btn-active-border-color: var(--srm-accent-active);
    --bs-btn-disabled-bg: var(--srm-accent);
    --bs-btn-disabled-border-color: var(--srm-accent);
    box-shadow: 0 1px 2px rgba(79, 70, 229, 0.25);
}

.btn-outline-primary {
    --bs-btn-color: var(--srm-accent);
    --bs-btn-border-color: color-mix(in srgb, var(--srm-accent) 45%, transparent);
    --bs-btn-hover-bg: var(--srm-accent);
    --bs-btn-hover-border-color: var(--srm-accent);
    --bs-btn-active-bg: var(--srm-accent);
    --bs-btn-active-border-color: var(--srm-accent);
}

/* --- Cards --------------------------------------------------------------- */
.card {
    --bs-card-border-color: var(--bs-border-color-translucent);
    --bs-card-border-radius: var(--bs-border-radius-lg);
    --bs-card-inner-border-radius: calc(var(--bs-border-radius-lg) - 1px);
    --bs-card-cap-bg: transparent;
    --bs-card-spacer-y: 1rem;
    --bs-card-spacer-x: 1.15rem;
    box-shadow: var(--srm-shadow-sm);
}

.card-header {
    border-bottom-color: var(--bs-border-color-translucent);
    font-weight: 620;
    padding-top: 0.85rem;
    padding-bottom: 0.85rem;
}

.card-footer {
    background-color: transparent;
    border-top-color: var(--bs-border-color-translucent);
}

/* --- Tables -------------------------------------------------------------- */
.table {
    --bs-table-border-color: var(--bs-border-color-translucent);
    --bs-table-bg: transparent;
    margin-bottom: 0;
    vertical-align: middle;
}

.table > thead th {
    font-size: 0.74rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--bs-secondary-color);
    font-weight: 650;
    border-bottom-width: 1px;
}

/* --- Forms --------------------------------------------------------------- */
.form-label {
    font-weight: 550;
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
    color: var(--bs-emphasis-color);
}

.form-control, .form-select {
    border-radius: 0.55rem;
    border-color: var(--bs-border-color);
}

.form-control:focus, .form-select:focus, .form-check-input:focus {
    border-color: var(--srm-accent);
    box-shadow: 0 0 0 0.2rem rgba(79, 70, 229, 0.18);
}

.form-check-input:checked {
    background-color: var(--srm-accent);
    border-color: var(--srm-accent);
}

/* --- Badges -------------------------------------------------------------- */
.badge {
    font-weight: 600;
    letter-spacing: 0.01em;
    border-radius: 0.5rem;
}

/* --- Alerts -------------------------------------------------------------- */
.alert {
    border-radius: var(--bs-border-radius);
    border: 1px solid var(--bs-border-color-translucent);
}

/* --- Stat cards (dashboard) --------------------------------------------- */
.srm-stat {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.9rem 1.05rem;
}

.srm-stat-icon {
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.srm-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.srm-stat-label {
    color: var(--bs-secondary-color);
    font-size: 0.8rem;
}

.srm-bg-accent-soft { background: var(--srm-accent-soft); color: var(--srm-accent); }
.srm-bg-success-soft { background: rgba(25, 135, 84, 0.12); color: var(--bs-success); }
.srm-bg-warning-soft { background: rgba(255, 193, 7, 0.15); color: #b8860b; }
.srm-bg-danger-soft { background: rgba(220, 53, 69, 0.12); color: var(--bs-danger); }
[data-bs-theme="dark"] .srm-bg-warning-soft { color: #ffca2c; }

/* --- Settings tabs ------------------------------------------------------- */
.srm-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--bs-border-color-translucent);
    padding-bottom: 0.4rem;
}

.srm-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.85rem;
    border-radius: 0.55rem;
    color: var(--bs-secondary-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 550;
    white-space: nowrap;
}

.srm-tab:hover {
    background: var(--bs-secondary-bg);
    color: var(--bs-emphasis-color);
}

.srm-tab.active {
    background: var(--srm-accent);
    color: #fff;
}

/* Settings hub cards */
.srm-settings-card {
    transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}

.srm-settings-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--srm-shadow);
    border-color: color-mix(in srgb, var(--srm-accent) 35%, var(--bs-border-color));
}

/* --- Topbar user menu ---------------------------------------------------- */
.srm-user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.srm-user-name {
    font-weight: 600;
    font-size: 0.9rem;
}

/* --- Boot / loading splash ---------------------------------------------- */
.srm-boot {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bs-body-bg);
}

/* --- Login --------------------------------------------------------------- */
.srm-auth-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background:
        radial-gradient(900px 500px at 15% 0%, rgba(79, 70, 229, 0.18), transparent 60%),
        radial-gradient(800px 500px at 100% 100%, rgba(124, 58, 237, 0.14), transparent 55%),
        var(--bs-body-bg);
}

.srm-login-card {
    width: 100%;
    max-width: 400px;
    box-shadow: var(--srm-shadow);
}

.srm-login-mark {
    font-size: 2.5rem;
    line-height: 1;
    margin-bottom: 0.35rem;
}

.srm-login-hint {
    border-top: 1px solid var(--bs-border-color-translucent);
    padding-top: 1rem;
}

/* Subtle, modern scrollbars */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--bs-border-color) transparent;
}
