/* ============================================
   TASKFLOW - MODERN TO-DO APP STYLES
   ============================================ */

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

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #0ea5e9;
  --accent: #f59e0b;
  --success: #10b981;
  --danger: #ef4444;
  --dark: #1e1b4b;
  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50: #f9fafb;
  --white: #ffffff;
  --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
  --gradient-text: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--gray-50);
  color: var(--gray-800);
  overflow-x: hidden;
  line-height: 1.6;
  transition: var(--transition);
}

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

img {
  max-width: 100%;
  height: auto;
}

/* -------- UTILITIES -------- */
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-badge {
  display: inline-block;
  padding: 8px 16px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(168, 85, 247, 0.1) 100%);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.section-subtitle {
  color: var(--gray-500);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 40px;
}

/* -------- BUTTONS -------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--gradient);
  border: none;
  border-radius: var(--radius-full);
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-primary:active {
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-full);
  color: var(--gray-700);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* -------- NAVBAR -------- */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 8%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo i {
  font-size: 1.8rem;
  color: var(--primary);
}

.logo h1, .logo h3 {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

nav a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--gray-600);
  border-radius: var(--radius);
  transition: var(--transition);
}

nav a i {
  font-size: 0.85rem;
}

nav a:hover {
  color: var(--primary);
  background: rgba(99, 102, 241, 0.08);
}

/* Workspace Nav Link - Special Styling */
.nav-workspace-link {
  background: var(--gradient) !important;
  color: white !important;
  border-radius: var(--radius-full) !important;
  padding: 10px 18px !important;
}

.nav-workspace-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

#darkModeToggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-left: 10px;
  background: var(--gray-100);
  border: none;
  border-radius: var(--radius);
  font-size: 1.1rem;
  color: var(--gray-600);
  cursor: pointer;
  transition: var(--transition);
}

#darkModeToggle:hover {
  background: var(--primary);
  color: var(--white);
  transform: rotate(15deg);
}

.mobile-menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  background: var(--gray-100);
  border: none;
  border-radius: var(--radius);
  font-size: 1.2rem;
  color: var(--gray-600);
  cursor: pointer;
}

/* -------- HERO -------- */
.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 80px 8% 100px;
  gap: 60px;
  min-height: calc(100vh - 80px);
  background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-text {
  flex: 1;
  max-width: 600px;
  animation: fadeInUp 1s ease;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(251, 191, 36, 0.1) 100%);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.hero-text h2 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--gray-900);
  margin-bottom: 24px;
}

.hero-text > p {
  font-size: 1.15rem;
  color: var(--gray-500);
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--gray-200);
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat strong {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
}

.stat span {
  font-size: 0.9rem;
  color: var(--gray-500);
}

.hero-img {
  flex: 1;
  max-width: 550px;
  animation: fadeInRight 1s ease;
}

.hero-img-wrapper {
  position: relative;
}

.hero-img img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  font-weight: 500;
  animation: float 3s ease-in-out infinite;
}

.floating-card i {
  font-size: 1.1rem;
}

.floating-card.card-1 {
  top: 20%;
  left: -30px;
  color: var(--success);
  animation-delay: 0s;
}

.floating-card.card-2 {
  bottom: 25%;
  right: -20px;
  color: var(--primary);
  animation-delay: 1.5s;
}

/* -------- FEATURES -------- */
.features {
  padding: 100px 8%;
  text-align: center;
  background: var(--white);
}

.features > h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 16px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.feature {
  position: relative;
  background: var(--gray-50);
  padding: 40px 30px;
  border-radius: var(--radius-lg);
  text-align: left;
  transition: var(--transition);
  border: 1px solid transparent;
  overflow: hidden;
}

.feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient);
  opacity: 0;
  transition: var(--transition);
}

.feature:hover {
  background: var(--white);
  border-color: var(--gray-200);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.feature:hover::before {
  opacity: 1;
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--gradient);
  border-radius: var(--radius);
  margin-bottom: 24px;
  font-size: 1.5rem;
  color: var(--white);
  transition: var(--transition);
}

.feature:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

.feature h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 12px;
}

.feature > p {
  color: var(--gray-500);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.feature-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
}

.feature-link i {
  transition: var(--transition);
}

.feature-link:hover i {
  transform: translateX(5px);
}

/* -------- PREVIEW -------- */
.preview {
  padding: 100px 8%;
  display: flex;
  align-items: center;
  gap: 80px;
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.preview-img {
  flex: 1;
  max-width: 550px;
  animation: fadeInLeft 1s ease;
}

.preview-img img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  transition: var(--transition);
}

.preview-img:hover img {
  transform: scale(1.02);
}

.preview-text {
  flex: 1;
  max-width: 500px;
}

.preview-text h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 20px;
}

.preview-text > p {
  color: var(--gray-500);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 30px;
}

.preview-features {
  list-style: none;
  margin-bottom: 32px;
}

.preview-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  color: var(--gray-700);
  font-size: 1rem;
}

.preview-features li i {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border-radius: 50%;
  font-size: 0.7rem;
}

/* -------- TO-DO SECTION -------- */
.todo-section {
  padding: 100px 8%;
  text-align: center;
  background: linear-gradient(180deg, #eef2ff 0%, #e0e7ff 100%);
  position: relative;
  overflow: visible;
}

.todo-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%236366f1' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.todo-section > h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 16px;
  position: relative;
}

.todo-section > .section-subtitle {
  position: relative;
}

.todo-section > .section-badge {
  position: relative;
}

.todo-container {
  max-width: 560px;
  margin: 0 auto;
  background: var(--white);
  padding: 0;
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 50px -12px rgba(99, 102, 241, 0.25);
  overflow: hidden;
  position: relative;
  text-align: left;
}

.todo-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 24px 28px;
  background: var(--gradient);
  color: var(--white);
}

.todo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  font-size: 1.3rem;
}

.todo-header h3 {
  font-size: 1.25rem;
  flex: 1;
}

/* Open Workspace Button in Header */
.open-workspace-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  position: relative;
  z-index: 100;
  cursor: pointer;
}

.open-workspace-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.open-workspace-btn span {
  display: none;
}

@media (min-width: 480px) {
  .open-workspace-btn span {
    display: inline;
  }
}

/* Workspace CTA Section */
.workspace-cta {
  margin-top: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 20px;
  position: relative;
  z-index: 10;
}

.workspace-cta-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 28px 32px;
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 2px dashed var(--primary-light);
  text-align: center;
  transition: var(--transition);
  position: relative;
  z-index: 10;
}

.workspace-cta-content:hover {
  border-style: solid;
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.workspace-cta-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--gradient);
  border-radius: var(--radius-lg);
  color: white;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.workspace-cta-text h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 6px;
}

.workspace-cta-text p {
  color: var(--gray-500);
  font-size: 0.9rem;
  line-height: 1.5;
  max-width: 280px;
  margin: 0;
}

.workspace-cta-btn {
  padding: 14px 28px;
  white-space: nowrap;
  flex-shrink: 0;
  font-size: 0.95rem;
  position: relative;
  z-index: 10;
  cursor: pointer;
  text-decoration: none;
}

@media (min-width: 768px) {
  .workspace-cta {
    padding: 0;
  }

  .workspace-cta-content {
    flex-direction: row;
    text-align: left;
    gap: 20px;
    align-items: center;
    padding: 24px 28px;
  }

  .workspace-cta-icon {
    flex-shrink: 0;
  }

  .workspace-cta-text {
    flex: 1;
  }

  .workspace-cta-text p {
    max-width: none;
  }
}

.todo-header h3 {
  font-weight: 600;
}

/* Input wrapper */
.todo-input-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
}

.input-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--white);
  border-radius: var(--radius);
  color: var(--gray-400);
  font-size: 0.9rem;
  border: 2px dashed var(--gray-300);
  flex-shrink: 0;
}

.todo-container input[type="text"] {
  flex: 1;
  padding: 14px 18px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  outline: none;
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--white);
}

.todo-container input[type="text"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.todo-container input[type="text"]::placeholder {
  color: var(--gray-400);
}

#addTaskBtn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  background: var(--gradient);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  transition: var(--transition);
  white-space: nowrap;
}

#addTaskBtn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

#addTaskBtn:active {
  transform: translateY(0);
}

#addTaskBtn span {
  display: none;
}

@media (min-width: 480px) {
  #addTaskBtn span {
    display: inline;
  }
}

/* Filter buttons */
.todo-filters {
  display: flex;
  gap: 8px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--gray-100);
}

.filter-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  background: var(--gray-100);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: inherit;
  color: var(--gray-500);
  transition: var(--transition);
}

.filter-btn i {
  font-size: 0.75rem;
}

.filter-btn:hover {
  background: var(--gray-200);
  color: var(--gray-700);
}

.filter-btn.active {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* Task list */
#taskList {
  list-style: none;
  padding: 8px 24px;
  max-height: 350px;
  overflow-y: auto;
}

#taskList::-webkit-scrollbar {
  width: 6px;
}

#taskList::-webkit-scrollbar-track {
  background: transparent;
}

#taskList::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 3px;
}

#taskList li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  margin: 8px 0;
  background: var(--gray-50);
  border-radius: var(--radius);
  border: 1px solid transparent;
  animation: slideIn 0.3s ease forwards;
  opacity: 0;
  transform: translateY(-10px);
  transition: var(--transition);
}

#taskList li:hover {
  background: var(--white);
  border-color: var(--gray-200);
  box-shadow: var(--shadow);
}

#taskList li.removing {
  opacity: 0;
  transform: translateX(30px);
}

#taskList li.checked {
  background: var(--gray-100);
}

#taskList li.checked .task-text {
  text-decoration: line-through;
  color: var(--gray-400);
}

/* Task content */
.task-content {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
  min-width: 0;
}

.task-checkbox {
  width: 22px;
  height: 22px;
  accent-color: var(--primary);
  cursor: pointer;
  flex-shrink: 0;
}

.task-text {
  font-size: 0.95rem;
  color: var(--gray-700);
  word-break: break-word;
}

/* Edit input */
.edit-input {
  flex: 1;
  padding: 10px 14px;
  border: 2px solid var(--primary);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  background: var(--white);
}

/* Task action buttons */
.task-actions {
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: var(--transition);
}

#taskList li:hover .task-actions {
  opacity: 1;
}

.task-actions button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.task-actions button:hover {
  background: var(--gray-200);
  transform: scale(1.1);
}

.task-actions button.edit:hover {
  background: rgba(99, 102, 241, 0.1);
}

.task-actions button.delete:hover {
  background: rgba(239, 68, 68, 0.1);
}

/* Empty message */
.empty-message {
  padding: 40px 20px !important;
  color: var(--gray-400);
  font-style: italic;
  text-align: center;
  background: transparent !important;
  border: none !important;
  animation: none !important;
  opacity: 1 !important;
  transform: none !important;
}

/* Todo footer */
.todo-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
}

#taskCount {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--gray-500);
}

#taskCount i {
  color: var(--primary);
}

#clearCompleted {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  background: transparent;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  color: var(--gray-500);
  cursor: pointer;
  font-size: 0.85rem;
  font-family: inherit;
  transition: var(--transition);
}

#clearCompleted:hover {
  background: var(--danger);
  border-color: var(--danger);
  color: var(--white);
}

/* -------- FOOTER -------- */
footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 60px;
  padding: 80px 8% 60px;
  flex-wrap: wrap;
}

.footer-brand {
  max-width: 350px;
}

.footer-brand .logo {
  margin-bottom: 20px;
}

.footer-brand .logo i {
  color: var(--primary-light);
}

.footer-brand .logo h3 {
  color: var(--white);
  background: none;
  -webkit-text-fill-color: var(--white);
}

.footer-brand > p {
  color: var(--gray-400);
  margin-bottom: 30px;
  line-height: 1.7;
}

.download-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: var(--gray-800);
  border-radius: var(--radius);
  color: var(--white);
  transition: var(--transition);
}

.download-btn:hover {
  background: var(--gray-700);
  transform: translateY(-2px);
}

.download-btn i {
  font-size: 1.8rem;
}

.download-btn small {
  display: block;
  font-size: 0.7rem;
  color: var(--gray-400);
}

.download-btn strong {
  display: block;
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
}

.footer-column h4 {
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-column a {
  display: block;
  color: var(--gray-400);
  padding: 8px 0;
  font-size: 0.95rem;
  transition: var(--transition);
}

.footer-column a:hover {
  color: var(--primary-light);
  transform: translateX(5px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 8%;
  border-top: 1px solid var(--gray-800);
  flex-wrap: wrap;
  gap: 20px;
}

.footer-bottom p {
  color: var(--gray-500);
  font-size: 0.9rem;
}

.socials {
  display: flex;
  gap: 12px;
}

.socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--gray-800);
  border-radius: var(--radius-sm);
  color: var(--gray-400);
  font-size: 1rem;
  transition: var(--transition);
}

.socials a:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-3px);
}

/* -------- BACK TO TOP -------- */
#backToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--gradient);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
  transition: var(--transition);
  z-index: 999;
}

#backToTop:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(99, 102, 241, 0.5);
}

/* -------- ANIMATIONS -------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* -------- DARK MODE -------- */
body.dark {
  background: var(--gray-900);
  color: var(--gray-200);
}

body.dark header {
  background: rgba(17, 24, 39, 0.95);
  border-bottom-color: rgba(255, 255, 255, 0.05);
}

body.dark nav a {
  color: var(--gray-400);
}

body.dark nav a:hover {
  background: rgba(99, 102, 241, 0.15);
}

body.dark #darkModeToggle {
  background: var(--gray-800);
  color: var(--accent);
}

body.dark .hero {
  background: linear-gradient(180deg, var(--gray-900) 0%, var(--gray-800) 100%);
}

body.dark .hero::before {
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
}

body.dark .hero-text h2 {
  color: var(--white);
}

body.dark .hero-text > p {
  color: var(--gray-400);
}

body.dark .hero-stats {
  border-top-color: var(--gray-700);
}

body.dark .stat strong {
  color: var(--white);
}

body.dark .btn-secondary {
  background: var(--gray-800);
  border-color: var(--gray-700);
  color: var(--gray-300);
}

body.dark .btn-secondary:hover {
  border-color: var(--primary);
}

body.dark .floating-card {
  background: var(--gray-800);
  color: var(--gray-200);
}

body.dark .floating-card.card-1 {
  color: var(--success);
}

body.dark .floating-card.card-2 {
  color: var(--primary-light);
}

body.dark .features {
  background: var(--gray-800);
}

body.dark .features > h2,
body.dark .preview-text h2 {
  color: var(--white);
}

body.dark .feature {
  background: var(--gray-900);
  border-color: var(--gray-700);
}

body.dark .feature:hover {
  background: var(--gray-800);
}

body.dark .feature h3 {
  color: var(--gray-100);
}

body.dark .feature > p {
  color: var(--gray-400);
}

body.dark .preview {
  background: linear-gradient(180deg, var(--gray-800) 0%, var(--gray-900) 100%);
}

body.dark .preview-text > p {
  color: var(--gray-400);
}

body.dark .preview-features li {
  color: var(--gray-300);
}

body.dark .todo-section {
  background: linear-gradient(180deg, #1e1b4b 0%, #312e81 100%);
}

body.dark .todo-section > h2 {
  color: var(--white);
}

body.dark .todo-container {
  background: var(--gray-800);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

body.dark .todo-input-wrapper {
  background: var(--gray-900);
  border-bottom-color: var(--gray-700);
}

body.dark .input-icon {
  background: var(--gray-800);
  border-color: var(--gray-600);
  color: var(--gray-500);
}

body.dark .todo-container input[type="text"] {
  background: var(--gray-800);
  border-color: var(--gray-600);
  color: var(--gray-200);
}

body.dark .todo-container input[type="text"]::placeholder {
  color: var(--gray-500);
}

body.dark .todo-filters {
  border-bottom-color: var(--gray-700);
}

body.dark .filter-btn {
  background: var(--gray-700);
  color: var(--gray-400);
}

body.dark .filter-btn:hover {
  background: var(--gray-600);
  color: var(--gray-200);
}

body.dark .filter-btn.active {
  background: var(--primary);
  color: var(--white);
}

body.dark #taskList li {
  background: var(--gray-700);
  border-color: transparent;
}

body.dark #taskList li:hover {
  background: var(--gray-600);
  border-color: var(--gray-500);
}

body.dark #taskList li.checked {
  background: var(--gray-800);
}

body.dark .task-text {
  color: var(--gray-200);
}

body.dark #taskList li.checked .task-text {
  color: var(--gray-500);
}

body.dark .edit-input {
  background: var(--gray-800);
  color: var(--gray-200);
}

body.dark .task-actions button:hover {
  background: var(--gray-500);
}

body.dark .todo-footer {
  background: var(--gray-900);
  border-top-color: var(--gray-700);
}

body.dark #taskCount {
  color: var(--gray-400);
}

body.dark #clearCompleted {
  border-color: var(--gray-600);
  color: var(--gray-400);
}

body.dark .empty-message {
  color: var(--gray-500);
}

/* Workspace CTA Dark Mode */
body.dark .workspace-cta-content {
  background: var(--gray-800);
  border-color: var(--primary);
}

body.dark .workspace-cta-text h3 {
  color: var(--gray-100);
}

body.dark .workspace-cta-text p {
  color: var(--gray-400);
}

/* -------- RESPONSIVE -------- */
@media (max-width: 992px) {
  .hero {
    flex-direction: column-reverse;
    text-align: center;
    padding: 60px 5%;
    gap: 40px;
  }
  
  .hero-text {
    max-width: 100%;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-img {
    max-width: 400px;
  }
  
  .floating-card {
    display: none;
  }
  
  .preview {
    flex-direction: column;
    text-align: center;
    gap: 40px;
  }
  
  .preview-img {
    max-width: 100%;
  }
  
  .preview-features {
    text-align: left;
    display: inline-block;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 40px;
  }
  
  .footer-links {
    width: 100%;
    justify-content: space-between;
  }
}

@media (max-width: 768px) {
  header {
    padding: 12px 5%;
  }
  
  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--white);
    padding: 20px;
    box-shadow: var(--shadow-lg);
    gap: 8px;
  }
  
  nav.active {
    display: flex;
  }
  
  nav a {
    width: 100%;
    justify-content: center;
    padding: 14px;
  }
  
  #darkModeToggle {
    margin: 10px auto 0;
  }
  
  .mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  body.dark nav {
    background: var(--gray-800);
  }
  
  .hero-text h2 {
    font-size: 2rem;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .todo-section {
    padding: 60px 5%;
  }
  
  .todo-container {
    border-radius: var(--radius-lg);
  }
  
  .todo-input-wrapper {
    flex-wrap: wrap;
  }
  
  .input-icon {
    display: none;
  }
  
  .todo-container input[type="text"] {
    width: 100%;
    flex: 1 1 100%;
    order: 1;
    margin-bottom: 10px;
  }
  
  #addTaskBtn {
    width: 100%;
    justify-content: center;
    order: 2;
  }
  
  #addTaskBtn span {
    display: inline;
  }
  
  .todo-filters {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .todo-footer {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 30px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .download-buttons {
    flex-direction: column;
  }
  
  .btn-primary, .btn-secondary {
    width: 100%;
    justify-content: center;
    padding: 16px 24px;
  }
}