From 48c9e4ddeb5eaf3fb44fc01a3a1343299f068def Mon Sep 17 00:00:00 2001
From: Nikolay Tatarinov <me@arnike.ru>
Date: Fri, 6 Feb 2026 19:19:21 +0300
Subject: [PATCH] Implement gradient themes in CSS, enhance print
 functionality, and update card styles in templates. Add a PDF save button and
 improve layout for better accessibility and user experience.

---
 static/css/main.css  | 271 +++++++++++++++++++++++++++----------------
 templates/base.html  |  11 +-
 templates/index.html |  10 +-
 3 files changed, 183 insertions(+), 109 deletions(-)

diff --git a/static/css/main.css b/static/css/main.css
index 648b5d3..38b767d 100644
--- a/static/css/main.css
+++ b/static/css/main.css
@@ -1,102 +1,169 @@
-@import "tailwindcss";
-@plugin "daisyui";
-
-@theme {
-  --font-sans: "DM Sans", ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
-}
-
-@plugin "daisyui/theme" {
-  name: "light";
-  default: true;
-  prefersdark: false;
-  color-scheme: "light";
-  --color-base-100: oklch(100% 0 0);
-  --color-base-200: oklch(98% 0 0);
-  --color-base-300: oklch(95% 0 0);
-  --color-base-content: oklch(21% 0.006 285.885);
-  --color-primary: #0A2896;
-  --color-primary-content: oklch(93% 0.034 272.788);
-  --color-secondary: #428BCA;
-  --color-secondary-content: oklch(100% 0 0);
-  --color-accent: #A492FF;
-  --color-accent-content: oklch(21% 0.006 285.885);
-  --color-neutral: #333333;
-  --color-neutral-content: oklch(92% 0.004 286.32);
-  --color-info: oklch(74% 0.16 232.661);
-  --color-info-content: oklch(29% 0.066 243.157);
-  --color-success: oklch(76% 0.177 163.223);
-  --color-success-content: oklch(37% 0.077 168.94);
-  --color-warning: oklch(82% 0.189 84.429);
-  --color-warning-content: oklch(41% 0.112 45.904);
-  --color-error: oklch(71% 0.194 13.428);
-  --color-error-content: oklch(27% 0.105 12.094);
-  --radius-selector: 0.5rem;
-  --radius-field: 0.25rem;
-  --radius-box: 0.5rem;
-  --size-selector: 0.25rem;
-  --size-field: 0.25rem;
-  --border: 1px;
-  --depth: 1;
-  --noise: 0;
-}
-
-@plugin "daisyui/theme" {
-  name: "dark";
-  default: false;
-  prefersdark: true;
-  color-scheme: "dark";
-  --color-base-100: oklch(22% 0.014 260);
-  --color-base-200: oklch(19% 0.012 260);
-  --color-base-300: oklch(16% 0.01 260);
-  --color-base-content: oklch(95% 0.01 260);
-  --color-primary: oklch(58% 0.2 270);
-  --color-primary-content: oklch(96% 0.02 272);
-  --color-secondary: oklch(62% 0.15 250);
-  --color-secondary-content: oklch(96% 0.02 250);
-  --color-accent: oklch(72% 0.18 280);
-  --color-accent-content: oklch(20% 0.02 280);
-  --color-neutral: oklch(28% 0.02 260);
-  --color-neutral-content: oklch(92% 0.004 286.32);
-  --color-info: oklch(74% 0.16 232.661);
-  --color-info-content: oklch(29% 0.066 243.157);
-  --color-success: oklch(76% 0.177 163.223);
-  --color-success-content: oklch(37% 0.077 168.94);
-  --color-warning: oklch(82% 0.189 84.429);
-  --color-warning-content: oklch(41% 0.112 45.904);
-  --color-error: oklch(71% 0.194 13.428);
-  --color-error-content: oklch(27% 0.105 12.094);
-  --radius-selector: 0.5rem;
-  --radius-field: 0.25rem;
-  --radius-box: 0.5rem;
-  --size-selector: 0.25rem;
-  --size-field: 0.25rem;
-  --border: 1px;
-  --depth: 1;
-  --noise: 0;
-}
-
-/* Main content area: distinct background so cards (base-100) stand out */
-[data-theme=light] main {
-  background-color: var(--color-base-200);
-}
-[data-theme=dark] main {
-  background-color: var(--color-base-200);
-}
-
-/* Accessibility: ensure focus ring is visible on key controls */
-.btn:focus-visible,
-.select:focus-within,
-label.swap:focus-within {
-  outline: 2px solid var(--color-primary);
-  outline-offset: 2px;
-}
-
-/* Light theme: slightly stronger card shadow for depth */
-[data-theme=light] .card.shadow-sm {
-  box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.08), 0 1px 2px -1px rgb(0 0 0 / 0.06);
-}
-[data-theme=light] .card.shadow-sm:hover {
-  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.06);
-}
-
-@source "../../templates";
\ No newline at end of file
+@import "tailwindcss";
+@plugin "daisyui";
+
+@theme {
+  --font-sans: "DM Sans", ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
+}
+
+@plugin "daisyui/theme" {
+  name: "light";
+  default: true;
+  prefersdark: false;
+  color-scheme: "light";
+  --color-base-100: oklch(100% 0.004 260);
+  --color-base-200: oklch(98% 0.004 260);
+  --color-base-300: oklch(95% 0.004 260);
+  --color-base-content: oklch(22% 0.02 260);
+  --color-primary: #0a2973;
+  --color-primary-content: #ffffff;
+  --color-secondary: #009fdf;
+  --color-secondary-content: #ffffff;
+  --color-accent: #009fdf;
+  --color-accent-content: #ffffff;
+  --color-neutral: #333333;
+  --color-neutral-content: oklch(92% 0.004 286.32);
+  --color-info: oklch(74% 0.16 232.661);
+  --color-info-content: oklch(29% 0.066 243.157);
+  --color-success: oklch(76% 0.177 163.223);
+  --color-success-content: oklch(37% 0.077 168.94);
+  --color-warning: oklch(82% 0.189 84.429);
+  --color-warning-content: oklch(41% 0.112 45.904);
+  --color-error: oklch(71% 0.194 13.428);
+  --color-error-content: oklch(27% 0.105 12.094);
+  --radius-selector: 0.5rem;
+  --radius-field: 0.25rem;
+  --radius-box: 0.5rem;
+  --size-selector: 0.25rem;
+  --size-field: 0.25rem;
+  --border: 1px;
+  --depth: 1;
+  --noise: 0;
+}
+
+@plugin "daisyui/theme" {
+  name: "dark";
+  default: false;
+  prefersdark: true;
+  color-scheme: "dark";
+  --color-base-100: oklch(22% 0.014 260);
+  --color-base-200: oklch(19% 0.012 260);
+  --color-base-300: oklch(16% 0.01 260);
+  --color-base-content: oklch(96% 0.01 260);
+  --color-primary: #0a2973;
+  --color-primary-content: #ffffff;
+  --color-secondary: #009fdf;
+  --color-secondary-content: #ffffff;
+  --color-accent: #009fdf;
+  --color-accent-content: #ffffff;
+  --color-neutral: oklch(28% 0.02 260);
+  --color-neutral-content: oklch(92% 0.004 286.32);
+  --color-info: oklch(74% 0.16 232.661);
+  --color-info-content: oklch(29% 0.066 243.157);
+  --color-success: oklch(76% 0.177 163.223);
+  --color-success-content: oklch(37% 0.077 168.94);
+  --color-warning: oklch(82% 0.189 84.429);
+  --color-warning-content: oklch(41% 0.112 45.904);
+  --color-error: oklch(71% 0.194 13.428);
+  --color-error-content: oklch(27% 0.105 12.094);
+  --radius-selector: 0.5rem;
+  --radius-field: 0.25rem;
+  --radius-box: 0.5rem;
+  --size-selector: 0.25rem;
+  --size-field: 0.25rem;
+  --border: 1px;
+  --depth: 1;
+  --noise: 0;
+}
+
+/* VTB gradient (both themes) */
+:root {
+  --gradient-vtb: linear-gradient(135deg, #0a2973 0%, #009fdf 100%);
+}
+
+/* Gradient top border for cards */
+.border-t-gradient-vtb {
+  position: relative;
+}
+.border-t-gradient-vtb::before {
+  content: "";
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: 4px;
+  background: var(--gradient-vtb);
+  border-radius: var(--radius-box) var(--radius-box) 0 0;
+}
+
+/* Gradient button (e.g. Load Analysis) */
+.btn-gradient-vtb {
+  background: var(--gradient-vtb);
+  color: #ffffff;
+  border: none;
+}
+.btn-gradient-vtb:hover {
+  opacity: 0.9;
+  color: #ffffff;
+}
+
+/* Main content area: distinct background so cards (base-100) stand out */
+[data-theme=light] main {
+  background-color: var(--color-base-200);
+}
+[data-theme=dark] main {
+  background-color: var(--color-base-200);
+}
+
+/* Accessibility: ensure focus ring is visible on key controls */
+.btn:focus-visible,
+.select:focus-within,
+label.swap:focus-within:not(.theme-toggle) {
+  outline: 2px solid var(--color-primary);
+  outline-offset: 2px;
+}
+
+/* Light theme: slightly stronger card shadow for depth */
+[data-theme=light] .card.shadow-sm {
+  box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.08), 0 1px 2px -1px rgb(0 0 0 / 0.06);
+}
+[data-theme=light] .card.shadow-sm:hover {
+  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.06);
+}
+
+@source "../../templates";
+
+/* --- Print (Save as PDF) --- */
+@media print {
+  .no-print {
+    display: none !important;
+  }
+  .print-only {
+    display: block !important;
+  }
+  /* Keep card backgrounds and colors when printing */
+  .card,
+  main,
+  .badge,
+  .progress {
+    -webkit-print-color-adjust: exact;
+    print-color-adjust: exact;
+  }
+  /* Avoid breaking cards and sections across pages */
+  .card {
+    break-inside: avoid;
+    page-break-inside: avoid;
+  }
+  section {
+    break-inside: avoid;
+    page-break-inside: avoid;
+  }
+  /* Reduce top padding so content starts higher */
+  main {
+    padding-top: 0.5rem !important;
+  }
+}
+@media screen {
+  .print-only {
+    display: none !important;
+  }
+}
\ No newline at end of file
diff --git a/templates/base.html b/templates/base.html
index 90164fe..c5f1a08 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -21,9 +21,15 @@
         <a class="btn btn-ghost text-xl" href="{% url 'index' %}">SWatcher</a>
         </div>
         <div class="navbar-end">
-            <div class="px-1 flex gap-3 pr-10">
+            <div class="px-1 flex items-center gap-3 pr-10">
+                <button type="button" class="btn btn-ghost btn-sm no-print" onclick="window.print()" title="Save as PDF" aria-label="Save as PDF">
+                    <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
+                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 10v6m0 0l-3-3m3 3l3-3m2 8H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"/>
+                    </svg>
+                    Save as PDF
+                </button>
                 <span id="regionBadge" class="badge badge-primary badge-lg">{{ region.name }}</span>
-                <label class="swap swap-rotate">
+                <label class="swap swap-rotate theme-toggle no-print">
                     <input type="checkbox" class="theme-controller" value="dark" />
                     <svg class="swap-off fill-current w-6 h-6" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
                         <path d="M5.64,17l-.71.71a1,1,0,0,0,0,1.41,1,1,0,0,0,1.41,0l.71-.71A1,1,0,0,0,5.64,17ZM5,12a1,1,0,0,0-1-1H3a1,1,0,0,0,0,2H4A1,1,0,0,0,5,12Zm7-7a1,1,0,0,0,1-1V3a1,1,0,0,0-2,0V4A1,1,0,0,0,12,5ZM5.64,7.05a1,1,0,0,0,.7.29,1,1,0,0,0,.71-.29,1,1,0,0,0,0-1.41l-.71-.71A1,1,0,0,0,4.93,6.34Zm12,.29a1,1,0,0,0,.7-.29l.71-.71a1,1,0,1,0-1.41-1.41L17,5.64a1,1,0,0,0,0,1.41A1,1,0,0,0,17.66,7.34ZM21,11H20a1,1,0,0,0,0,2h1a1,1,0,0,0,0-2Zm-9,8a1,1,0,0,0-1,1v1a1,1,0,0,0,2,0V20A1,1,0,0,0,12,19ZM18.36,17A1,1,0,0,0,17,18.36l.71.71a1,1,0,0,0,1.41,0,1,1,0,0,0,0-1.41ZM12,6.5A5.5,5.5,0,1,0,17.5,12,5.51,5.51,0,0,0,12,6.5Zm0,9A3.5,3.5,0,1,1,15.5,12,3.5,3.5,0,0,1,12,15.5Z"/>
@@ -38,6 +44,7 @@
 
     <!-- Main Content -->
     <main class="container mx-auto px-4 py-8 min-h-screen">
+        <p class="print-only text-lg font-semibold mb-4">Dashboard report</p>
         {% block content %}
         {% endblock %}
     </main>
diff --git a/templates/index.html b/templates/index.html
index d3aec89..11f918d 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -176,7 +176,7 @@
     <!-- DETAILED OVERVIEW -->
     <section class="grid grid-cols-1 lg:grid-cols-2 gap-4" aria-label="Resource allocation and flavors">
         <!-- Resource Allocation -->
-        <div class="card bg-base-100 shadow-sm border-t-2 border-primary" id="statsAllocationCard">
+        <div class="card bg-base-100 shadow-sm border-t-gradient-vtb" id="statsAllocationCard">
             <div class="card-body p-5">
                 <h2 class="text-lg font-semibold mb-4 flex items-center gap-2">
                     <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -244,7 +244,7 @@
         </div>
 
         <!-- Flavor Distribution -->
-        <div class="card bg-base-100 shadow-sm border-t-2 border-accent" id="statsFlavorsCard">
+        <div class="card bg-base-100 shadow-sm border-t-gradient-vtb" id="statsFlavorsCard">
             <div class="card-body p-5">
                 <h2 class="text-lg font-semibold mb-4 flex items-center gap-2">
                     <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -319,11 +319,11 @@
             <div class="flex flex-col sm:flex-row sm:items-center justify-between gap-3 mb-4">
                 <div>
                     <h2 class="text-lg font-semibold">Audit Analysis</h2>
-                    <div class="text-sm text-base-content/60 mt-0.5">Select an audit to analyze resource distribution</div>
+                    <div class="text-base text-base-content/60 mt-0.5">Select an audit to analyze resource distribution</div>
                 </div>
                 <div class="flex items-center gap-2">
                     <span class="text-xs text-base-content/60" id="auditsCount">{% if skeleton %}Loading…{% else %}{{ audits|length }} available{% endif %}</span>
-                    <div class="dropdown dropdown-end">
+                    <div class="dropdown dropdown-end no-print">
                         <label tabindex="0" class="btn btn-xs btn-ghost">
                             <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                 <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/>
@@ -373,7 +373,7 @@
                     {% endfor %}
                     {% endif %}
                 </select>
-                <button type="button" onclick="loadSelectedAudit()" class="btn btn-primary btn-sm gap-2">
+                <button type="button" onclick="loadSelectedAudit()" class="btn btn-primary btn-sm gap-2 no-print">
                     <svg class="w-4 h-4 shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
                         <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 7l5 5m0 0l-5 5m5-5H6"/>
                     </svg>