/*
Theme Name: Fortyfy
Theme URI: https://fortyfyfitness.com
Author: Fortyfy Fitness
Author URI: https://fortyfyfitness.com
Description: Custom application theme for Fortyfy Fitness web app.
Version: 0.1.0
License: GNU General Public License v2 or later
Text Domain: fortyfy
*/

/* ============================================================
   RAW COLOR PALETTE
   ============================================================ */
:root {
    /* Teal scale */
    --color-teal-dark:    #367A84;
    --color-teal-mid:     #629ea8;
    --color-teal-light:   #86babb;
    --color-teal-pale:    #b5d2d6;
    --color-teal-whisper: #dae4e5;

    /* Coral scale */
    --color-coral-dark:   #bf6864;
    --color-coral-mid:    #d68b85;
    --color-coral-light:  #e5a6a3;
    --color-coral-pale:   #efbdbd;
    --color-coral-whisper:#f4eded;

    /* Slate scale */
    --color-slate-dark:   #3f708f;
    --color-slate-mid:    #6b95aa;
    --color-slate-light:  #8db1bf;
    --color-slate-pale:   #bdd1db;
    --color-slate-whisper:#eef3f4;

    /* Violet scale */
    --color-violet-dark:  #86789b;
    --color-violet-mid:   #9b90ac;
    --color-violet-light: #aea6bb;
    --color-violet-pale:  #c3becc;
    --color-violet-whisper:#efedf3;

    /* Neutral scale */
    --color-neutral-900:  #4a4b4c;
    --color-neutral-700:  #727272;
    --color-neutral-500:  #a9a8a9;
    --color-neutral-300:  #bababa;
    --color-neutral-100:  #dbdbdb;
    --color-neutral-50:   #f2f2f2;

    /* Tangerine scale */
    --color-tangerine-dark:   #d68146;
    --color-tangerine-mid:    #e09460;
    --color-tangerine-light:  #eaa778;
    --color-tangerine-pale:   #f4c3a2;
    --color-tangerine-whisper:#fdf0e6;

    /* Gold scale */
    --color-gold-dark:    #d1b02b;
    --color-gold-mid:     #eaca40;
    --color-gold-light:   #f4d862;
    --color-gold-pale:    #f8e69a;
    --color-gold-whisper: #fdf8ed;
}

/* ============================================================
   SEMANTIC TOKENS
   ============================================================ */
:root {
    /* Brand */
    --color-primary:           var(--color-teal-dark);
    --color-primary-light:     var(--color-teal-light);
    --color-primary-pale:      var(--color-teal-whisper);
    --color-secondary:         var(--color-coral-dark);
    --color-secondary-light:   var(--color-coral-light);
    --color-secondary-pale:    var(--color-coral-whisper);

    /* Accents */
    --color-accent:            var(--color-violet-dark);
    --color-warm-accent:       var(--color-tangerine-dark);
    --color-achievement:       var(--color-gold-dark);

    /* Text */
    --color-text-primary:      var(--color-neutral-900);
    --color-text-secondary:    var(--color-neutral-700);
    --color-text-disabled:     var(--color-neutral-500);
    --color-text-on-primary:   #ffffff;
    --color-text-on-secondary: #ffffff;

    /* Surfaces */
    --color-surface:           #ffffff;
    --color-surface-alt:       var(--color-neutral-50);
    --color-surface-brand:     var(--color-primary);

    /* Borders */
    --color-border:            var(--color-neutral-100);
    --color-border-strong:     var(--color-neutral-300);

    /* Feedback */
    --color-success:           #3a7d52;
    --color-warning:           var(--color-tangerine-dark);
    --color-error:             var(--color-coral-dark);
    --color-info:              var(--color-slate-dark);

    /* Session type indicators (spec Section 16.1) */
    --color-session-rt:        var(--color-primary);
    --color-session-jump:      var(--color-secondary);
    --color-session-rest:      var(--color-neutral-300);

    /* Typography */
    --font-family-primary:     'rift-soft', 'Arial Narrow', Arial, sans-serif;
    --font-family-body:        -apple-system, BlinkMacSystemFont, 'Segoe UI',
                               Roboto, Helvetica, Arial, sans-serif;

    --font-size-xs:    0.75rem;   /* 12px */
    --font-size-sm:    0.875rem;  /* 14px */
    --font-size-base:  1rem;      /* 16px */
    --font-size-md:    1.125rem;  /* 18px */
    --font-size-lg:    1.25rem;   /* 20px */
    --font-size-xl:    1.5rem;    /* 24px */
    --font-size-2xl:   1.875rem;  /* 30px */
    --font-size-3xl:   2.25rem;   /* 36px */

    --font-weight-regular: 400;
    --font-weight-medium:  500;
    --font-weight-bold:    700;

    --line-height-tight:  1.2;
    --line-height-normal: 1.5;
    --line-height-loose:  1.75;

    /* Spacing */
    --space-1:  0.25rem;   /* 4px */
    --space-2:  0.5rem;    /* 8px */
    --space-3:  0.75rem;   /* 12px */
    --space-4:  1rem;      /* 16px */
    --space-5:  1.25rem;   /* 20px */
    --space-6:  1.5rem;    /* 24px */
    --space-8:  2rem;      /* 32px */
    --space-10: 2.5rem;    /* 40px */
    --space-12: 3rem;      /* 48px */
    --space-16: 4rem;      /* 64px */

    /* Layout */
    --app-max-width:       480px;
    --nav-height:          64px;
    --header-height:       56px;

    /* Radius */
    --radius-sm:   4px;
    --radius-md:   8px;
    --radius-lg:   16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
    --shadow-md:  0 4px 12px rgba(0,0,0,0.10);
    --shadow-lg:  0 8px 24px rgba(0,0,0,0.12);

    /* Transitions */
    --transition-fast:   150ms ease;
    --transition-normal: 250ms ease;

    /* Touch targets (WCAG 2.1 AA — spec Section 19.1) */
    --touch-target-min: 44px;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-body);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-surface);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, video {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

button {
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    border: none;
    background: none;
}

/* Focus visible — WCAG 2.1 AA */
:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============================================================
   APP SHELL LAYOUT
   Used by page-app.php for all authenticated app screens
   ============================================================ */
.fortyfy-app {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
    max-width: var(--app-max-width);
    margin: 0 auto;
    background-color: var(--color-surface);
    position: relative;
}

.fortyfy-app__header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    padding: 0 var(--space-4);
}

.fortyfy-app__content {
    flex: 1;
    overflow-y: auto;
    padding-bottom: calc(var(--nav-height) + var(--space-4));
}

.fortyfy-app__nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: var(--app-max-width);
    height: var(--nav-height);
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-around;
    z-index: 100;
}

/* ============================================================
   ONBOARDING SHELL LAYOUT
   Full-screen, no nav, used for onboarding flow
   ============================================================ */
.fortyfy-onboarding {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
    max-width: var(--app-max-width);
    margin: 0 auto;
    background-color: var(--color-surface);
}

.fortyfy-onboarding__header {
    padding: var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    min-height: 80px;
}

.fortyfy-onboarding__logo {
    height: 60px;
    width: auto;
}

.fortyfy-onboarding__progress {
    height: 4px;
    background-color: var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.fortyfy-onboarding__progress-fill {
    height: 100%;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

.fortyfy-onboarding__body {
    flex: 1;
    padding: var(--space-6) var(--space-4);
    overflow-y: auto;
}

.fortyfy-onboarding__footer {
    padding: var(--space-4);
    border-top: 1px solid var(--color-border);
}

/* ============================================================
   TYPOGRAPHY UTILITIES
   ============================================================ */
.text-xs   { font-size: var(--font-size-xs); }
.text-sm   { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg   { font-size: var(--font-size-lg); }
.text-xl   { font-size: var(--font-size-xl); }
.text-2xl  { font-size: var(--font-size-2xl); }

.font-brand  { font-family: var(--font-family-primary); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-bold   { font-weight: var(--font-weight-bold); }

.text-primary   { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-on-brand  { color: var(--color-text-on-primary); }

/* ============================================================
   BUTTON COMPONENTS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: var(--touch-target-min);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-md);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.02em;
    transition: background-color var(--transition-fast),
                transform var(--transition-fast),
                opacity var(--transition-fast);
    cursor: pointer;
    border: none;
    text-decoration: none;
    width: 100%;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-on-primary);
}

.btn-primary:hover {
    background-color: var(--color-teal-mid);
    text-decoration: none;
    color: var(--color-text-on-primary);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: var(--color-text-on-secondary);
}

.btn-secondary:hover {
    background-color: var(--color-coral-mid);
    text-decoration: none;
    color: var(--color-text-on-secondary);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary-pale);
    text-decoration: none;
}

.btn-ghost {
    background-color: transparent;
    color: var(--color-text-secondary);
}

.btn:disabled,
.btn[aria-disabled="true"] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */
.fortyfy-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.fortyfy-input {
    display: block;
    width: 100%;
    min-height: var(--touch-target-min);
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    font-family: var(--font-family-body);
    color: var(--color-text-primary);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast),
                box-shadow var(--transition-fast);
}

.fortyfy-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(54, 122, 132, 0.15);
}

.fortyfy-input--error {
    border-color: var(--color-error);
}

.fortyfy-field-error {
    margin-top: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-error);
}

/* ============================================================
   CARD COMPONENT
   ============================================================ */
.fortyfy-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
}

/* ============================================================
   UTILITY
   ============================================================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

.visually-hidden { composes: sr-only; }