/* ===========================================================================
   DentCare — Base Styles & Design Tokens
   ---------------------------------------------------------------------------
   Every colour, size, radius and shadow used anywhere in the system is defined
   once here. Change a value in :root and it updates the landing page, the
   booking screens and all three dashboards at the same time.

   Design intent: a plain, calm clinic website. Flat colours, hairline borders,
   small radii, almost no shadow. Blue and teal are taken from the clinic logo.
   Nothing decorative that a printer or a receptionist would not recognise.
   =========================================================================== */

/* Montserrat is linked from templates/partials/page-head.php, not @imported
   here: an @import is only discovered after this file downloads. */

:root {
    /* ── Surfaces ─────────────────────────────────────────────────────── */
    --bg-canvas: #f4f6f7;           /* page background behind cards */
    --bg-card: #ffffff;
    --bg-sidebar: #ffffff;
    --bg-subtle: #f8fafb;           /* table stripes, inset panels */

    /* ── Text ─────────────────────────────────────────────────────────── */
    --text-primary: #1c1c1c;        /* headings and body copy */
    --text-secondary: #4d5560;      /* supporting paragraphs */
    --text-muted: #7b848f;          /* labels, captions, placeholders */
    --text-light: #ffffff;

    /* ── Brand ────────────────────────────────────────────────────────────
       Sampled from dentcarelogo.png: the deep blue of the tooth outline and
       the teal of the ribbon that wraps it. */
    --color-accent: #17608f;        /* primary — buttons, links, active nav */
    --color-accent-hover: #114a6f;
    --color-accent-light: #e9f1f6;  /* pale wash for chips and highlights */
    --brand-ink: #10425f;           /* dark bands: top bar, footer, hero tint */

    --color-teal: #2aa79e;          /* secondary — friendly accents */
    --color-teal-hover: #218a83;
    --color-teal-light: #e6f5f3;

    /* ── Status ───────────────────────────────────────────────────────── */
    --color-success: #2e7d4f;
    --color-success-light: #e6f2ea;
    --color-warning: #b26a00;
    --color-warning-light: #fdf1de;
    --color-danger: #c0392b;
    --color-danger-light: #fbeae8;

    /* ── Spacing (8px baseline) ───────────────────────────────────────── */
    --space-xs: 8px;
    --space-s: 16px;
    --space-m: 24px;
    --space-l: 32px;
    --space-xl: 48px;

    /* ── Lines, corners, depth ────────────────────────────────────────────
       Small radii and neutral (never blue-tinted) shadows. Depth comes from
       a 1px border first; shadow is only used where something genuinely
       floats above the page, such as a dropdown or a modal. */
    --border-color: #dfe3e6;
    --border-color-light: #eceff1;
    --radius-s: 3px;
    --radius-m: 4px;
    --radius-l: 6px;
    --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-medium: 0 2px 6px rgba(0, 0, 0, 0.07);
    --shadow-large: 0 6px 18px rgba(0, 0, 0, 0.10);

    --transition-clean: 0.15s ease;

    /* ── Type ─────────────────────────────────────────────────────────────
       Headings in Montserrat; body copy in the reader's own system font, so
       text renders the way every other application on their machine does. */
    --font-heading: 'Montserrat', 'Segoe UI', Arial, sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
                 'Helvetica Neue', Arial, sans-serif;
}


/* ---------------------------------------------------------------------------
   Resets
   ------------------------------------------------------------------------ */

* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    font-size: 15px;
    background-color: var(--bg-canvas);
    color: var(--text-secondary);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.hidden {
    display: none !important;
}


/* ---------------------------------------------------------------------------
   Typography
   ------------------------------------------------------------------------ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    margin-top: 0;
    margin-bottom: var(--space-xs);
    font-weight: 700;
    line-height: 1.25;
}

h1 { font-size: 30px; }
h2 { font-size: 23px; }
h3 { font-size: 19px; }
h4 { font-size: 16px; }

a {
    color: var(--color-accent);
}


/* ---------------------------------------------------------------------------
   Form controls
   ------------------------------------------------------------------------ */

input, select, textarea {
    font-family: var(--font-body);
    padding: 10px 12px;
    margin: var(--space-xs) 0 var(--space-s) 0;
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-s);
    background-color: #ffffff;
    transition: border-color var(--transition-clean);
    font-size: 14px;
    color: var(--text-primary);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(23, 96, 143, 0.15);
}

input::placeholder, textarea::placeholder {
    color: var(--text-muted);
}

/* Validation */
input.input-error, select.input-error, textarea.input-error,
.radio-pill.input-error, .signature-canvas-wrapper.input-error,
.consent.input-error {
    border-color: var(--color-danger) !important;
    box-shadow: 0 0 0 2px rgba(192, 57, 43, 0.18) !important;
    background-color: #fdf6f5 !important;
}

/* A problem that belongs to a whole form rather than one field: a bill the
   database cannot take a payment on, a save that was refused. */
.form-alert {
    margin: 12px 0 4px;
    padding: 12px 14px;
    border: 1px solid var(--color-danger);
    border-radius: 8px;
    background-color: var(--color-danger-light);
    color: var(--color-danger);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.45;
}
.form-alert.hidden { display: none; }

/* A group with no single box to outline (js/app.js flagGroup). */
.input-error-group.input-error {
    outline: 2px solid var(--color-danger);
    outline-offset: 4px;
    border-radius: 10px;
}

.input-error-shake {
    animation: fieldShake 0.4s ease-in-out;
}

@keyframes fieldShake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-4px); }
    40%, 80% { transform: translateX(4px); }
}

label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    display: block;
    text-align: left;
}

textarea {
    resize: vertical;
    min-height: 100px;
}


/* ---------------------------------------------------------------------------
   Buttons
   Flat fills, square-ish corners, colour change on hover — no lifting,
   glowing or scaling.
   ------------------------------------------------------------------------ */

button {
    font-family: var(--font-body);
    background-color: var(--color-accent);
    color: #ffffff;
    border: 1px solid transparent;
    padding: 10px 20px;
    border-radius: var(--radius-s);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: background-color var(--transition-clean),
                border-color var(--transition-clean),
                color var(--transition-clean);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

button:hover {
    background-color: var(--color-accent-hover);
}

button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

button.btn-secondary {
    background-color: #ffffff;
    border-color: var(--border-color);
    color: var(--text-primary);
}

button.btn-secondary:hover {
    background-color: var(--bg-canvas);
    border-color: var(--text-muted);
}

button.btn-danger {
    background-color: var(--color-danger);
}

button.btn-danger:hover {
    background-color: #a33024;
}

button.btn-success {
    background-color: var(--color-success);
}

button.btn-success:hover {
    background-color: #256540;
}


/* ---------------------------------------------------------------------------
   Scrollbars
   ------------------------------------------------------------------------ */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-canvas);
}
::-webkit-scrollbar-thumb {
    background: #c8ced3;
    border-radius: var(--radius-s);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Email address hint
   ------------------
   Sits under the registration email box and says, in words, why the address
   will not work — and when it can tell, offers the correction as a button.
   The button matters more than the message: a patient who is only told
   "invalid" retypes the same typo, while one shown "Did you mean
   maria@gmail.com?" takes the fix and moves on. */
.email-hint {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin: 6px 0 4px;
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 12.5px;
    line-height: 1.45;
    text-align: left;
    color: var(--color-danger);
    background: #fdf6f5;
    border: 1px solid rgba(192, 57, 43, 0.25);
}

/* A likely typo is not really an error — it is the app being helpful — so it
   is amber rather than the red used for "this cannot work at all". */
.email-hint--fix {
    color: #8a5a00;
    background: #fdf8ec;
    border-color: rgba(180, 130, 20, 0.3);
}

.email-hint__fix {
    flex-shrink: 0;
    /* base.css sets every button to display:flex, so a bare text label sits
       left inside its own pill unless it is told otherwise. */
    justify-content: center;
    padding: 4px 12px;
    border: 1px solid currentColor;
    border-radius: 999px;
    background: transparent;
    color: inherit;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
}

.email-hint__fix:hover {
    background: rgba(180, 130, 20, 0.12);
}

/* "Now go and look for it" panel
   ------------------------------
   Replaces the reset form after a request goes out. It carries what the email
   itself cannot say: the reset template is locked on this Firebase project, so
   the message arrives from noreply@<project>.firebaseapp.com in Firebase's own
   wording. Naming that sender here, before she goes looking, is what stops a
   cautious patient treating her own password reset as a phishing attempt. */
.forgot-sent__lead {
    margin: 0 0 var(--space-s);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
}

.forgot-sent__row {
    margin: 0 0 var(--space-s);
    font-size: 13px;
    line-height: 1.55;
    color: var(--text-secondary);
    text-align: left;
}

/* The sender address is long and unbreakable; without this it pushes the modal
   sideways on a phone. */
.forgot-sent__row strong {
    color: var(--text-primary);
    overflow-wrap: anywhere;
}

.forgot-sent__muted {
    color: var(--text-muted);
    font-size: 12px;
}

/* The message written under a field that needs attention (js/app.js, the
   "invalid" handler). Replaces the browser's own grey bubble. */
.field-error-msg {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    margin: 6px 0 10px;
    color: var(--color-danger);
    font-size: 13px;
    font-weight: 600;
    line-height: 1.4;
}
.field-error-msg::before {
    content: "!";
    display: inline-grid;
    place-items: center;
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    margin-top: 1px;
    border-radius: 50%;
    background-color: var(--color-danger);
    color: #ffffff;
    font-size: 11px;
    font-weight: 800;
}